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https://github.com/ZDoom/gzdoom.git
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Added FXAA post-processing
Implementation of Fast Approximate Anti-Aliasing is based on nVidia sample: https://github.com/NVIDIAGameWorks/GraphicsSamples/tree/master/samples/es3-kepler/FXAA
This commit is contained in:
alexey.lysiuk
Christoph Oelckers
parent
5391216756
commit
c68aa2b241
11 changed files with 897 additions and 1 deletions
33
docs/licenses/fxaa.txt
Normal file
33
docs/licenses/fxaa.txt
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@ -0,0 +1,33 @@
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//----------------------------------------------------------------------------------
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// File: es3-kepler\FXAA/FXAA3_11.h
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// SDK Version: v3.00
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// Email: gameworks@nvidia.com
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// Site: http://developer.nvidia.com/
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//
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// Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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//----------------------------------------------------------------------------------
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@ -1131,6 +1131,7 @@ set( FASTMATH_SOURCES
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gl/shaders/gl_colormapshader.cpp
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gl/shaders/gl_tonemapshader.cpp
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gl/shaders/gl_lensshader.cpp
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gl/shaders/gl_fxaashader.cpp
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gl/system/gl_interface.cpp
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gl/system/gl_framebuffer.cpp
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gl/system/gl_debug.cpp
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@ -60,6 +60,7 @@
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#include "gl/shaders/gl_tonemapshader.h"
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#include "gl/shaders/gl_colormapshader.h"
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#include "gl/shaders/gl_lensshader.h"
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#include "gl/shaders/gl_fxaashader.h"
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#include "gl/shaders/gl_presentshader.h"
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#include "gl/renderer/gl_2ddrawer.h"
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#include "gl/stereo3d/gl_stereo3d.h"
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@ -98,6 +99,14 @@ CVAR(Float, gl_lens_k, -0.12f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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CVAR(Float, gl_lens_kcube, 0.1f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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CVAR(Float, gl_lens_chromatic, 1.12f, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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CUSTOM_CVAR(Int, gl_fxaa, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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{
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if (self < 0 || self >= FFXAAShader::Count)
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{
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self = 0;
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}
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}
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EXTERN_CVAR(Float, vid_brightness)
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EXTERN_CVAR(Float, vid_contrast)
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@ -447,6 +456,51 @@ void FGLRenderer::LensDistortScene()
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FGLDebug::PopGroup();
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}
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//-----------------------------------------------------------------------------
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//
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// Apply FXAA and place the result in the HUD/2D texture
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//
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//-----------------------------------------------------------------------------
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void FGLRenderer::ApplyFXAA()
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{
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if (0 == gl_fxaa)
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{
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return;
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}
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FGLDebug::PushGroup("ApplyFXAA");
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const GLfloat rpcRes[2] =
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{
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1.0f / mBuffers->GetWidth(),
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1.0f / mBuffers->GetHeight()
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};
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FGLPostProcessState savedState;
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mBuffers->BindNextFB();
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mBuffers->BindCurrentTexture(0);
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mFXAALumaShader->Bind();
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mFXAALumaShader->InputTexture.Set(0);
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RenderScreenQuad();
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mBuffers->NextTexture();
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mBuffers->BindNextFB();
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mBuffers->BindCurrentTexture(0);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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mFXAAShader->Bind();
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mFXAAShader->InputTexture.Set(0);
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mFXAAShader->ReciprocalResolution.Set(rpcRes);
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RenderScreenQuad();
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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mBuffers->NextTexture();
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FGLDebug::PopGroup();
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}
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//-----------------------------------------------------------------------------
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//
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// Copies the rendered screen to its final destination
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@ -56,6 +56,7 @@
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#include "gl/shaders/gl_tonemapshader.h"
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#include "gl/shaders/gl_colormapshader.h"
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#include "gl/shaders/gl_lensshader.h"
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#include "gl/shaders/gl_fxaashader.h"
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#include "gl/shaders/gl_presentshader.h"
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#include "gl/shaders/gl_present3dRowshader.h"
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#include "gl/stereo3d/gl_stereo3d.h"
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@ -115,6 +116,8 @@ FGLRenderer::FGLRenderer(OpenGLFrameBuffer *fb)
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mTonemapPalette = nullptr;
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mColormapShader = nullptr;
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mLensShader = nullptr;
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mFXAAShader = nullptr;
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mFXAALumaShader = nullptr;
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}
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void gl_LoadModels();
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@ -133,6 +136,8 @@ void FGLRenderer::Initialize(int width, int height)
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mColormapShader = new FColormapShader();
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mTonemapPalette = nullptr;
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mLensShader = new FLensShader();
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mFXAAShader = new FFXAAShader;
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mFXAALumaShader = new FFXAALumaShader;
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mPresentShader = new FPresentShader();
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mPresent3dRowShader = new FPresent3DRowShader();
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m2DDrawer = new F2DDrawer;
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@ -198,6 +203,8 @@ FGLRenderer::~FGLRenderer()
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if (mTonemapPalette) delete mTonemapPalette;
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if (mColormapShader) delete mColormapShader;
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if (mLensShader) delete mLensShader;
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delete mFXAAShader;
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delete mFXAALumaShader;
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}
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//==========================================================================
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@ -28,6 +28,8 @@ class FBlurShader;
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class FTonemapShader;
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class FColormapShader;
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class FLensShader;
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class FFXAALumaShader;
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class FFXAAShader;
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class FPresentShader;
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class FPresent3DRowShader;
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class F2DDrawer;
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@ -104,6 +106,8 @@ public:
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FColormapShader *mColormapShader;
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FHardwareTexture *mTonemapPalette;
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FLensShader *mLensShader;
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FFXAALumaShader *mFXAALumaShader;
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FFXAAShader *mFXAAShader;
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FPresentShader *mPresentShader;
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FPresent3DRowShader *mPresent3dRowShader;
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@ -180,6 +184,7 @@ public:
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void BindTonemapPalette(int texunit);
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void ClearTonemapPalette();
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void LensDistortScene();
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void ApplyFXAA();
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void CopyToBackbuffer(const GL_IRECT *bounds, bool applyGamma);
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void DrawPresentTexture(const GL_IRECT &box, bool applyGamma);
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void Flush();
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@ -832,6 +832,7 @@ sector_t * FGLRenderer::RenderViewpoint (AActor * camera, GL_IRECT * bounds, flo
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TonemapScene();
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ColormapScene();
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LensDistortScene();
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ApplyFXAA();
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// This should be done after postprocessing, not before.
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mBuffers->BindCurrentFB();
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99
src/gl/shaders/gl_fxaashader.cpp
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99
src/gl/shaders/gl_fxaashader.cpp
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@ -0,0 +1,99 @@
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//
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//---------------------------------------------------------------------------
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//
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// Copyright(C) 2016 Alexey Lysiuk
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// All rights reserved.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with this program. If not, see http://www.gnu.org/licenses/
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//
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//--------------------------------------------------------------------------
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//
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//
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// Fast approXimate Anti-Aliasing (FXAA) post-processing
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//
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#include "gl/system/gl_system.h"
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#include "gl/shaders/gl_fxaashader.h"
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EXTERN_CVAR(Int, gl_fxaa)
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void FFXAALumaShader::Bind()
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{
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if (!mShader)
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{
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mShader.Compile(FShaderProgram::Vertex, "shaders/glsl/screenquad.vp", "", 330);
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mShader.Compile(FShaderProgram::Fragment, "shaders/glsl/fxaa.fp", "#define FXAA_LUMA_PASS\n", 330);
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mShader.SetFragDataLocation(0, "FragColor");
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mShader.Link("shaders/glsl/fxaa");
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mShader.SetAttribLocation(0, "PositionInProjection");
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InputTexture.Init(mShader, "InputTexture");
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}
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mShader.Bind();
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}
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static int GetMaxVersion()
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{
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return gl.glslversion >= 4.f ? 400 : 330;
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}
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static FString GetDefines()
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{
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int quality;
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switch (gl_fxaa)
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{
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default:
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case FFXAAShader::Low: quality = 10; break;
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case FFXAAShader::Medium: quality = 12; break;
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case FFXAAShader::High: quality = 29; break;
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case FFXAAShader::Extreme: quality = 39; break;
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}
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const int gatherAlpha = GetMaxVersion() >= 400 ? 1 : 0;
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// TODO: enable FXAA_GATHER4_ALPHA on OpenGL earlier than 4.0
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// when GL_ARB_gpu_shader5/GL_NV_gpu_shader5 extensions are supported
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FString result;
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result.Format(
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"#define FXAA_QUALITY__PRESET %i\n"
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"#define FXAA_GATHER4_ALPHA %i\n",
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quality, gatherAlpha);
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return result;
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}
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void FFXAAShader::Bind()
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{
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assert(gl_fxaa > 0 && gl_fxaa < Count);
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FShaderProgram &shader = mShaders[gl_fxaa];
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if (!shader)
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{
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const FString defines = GetDefines();
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const int maxVersion = GetMaxVersion();
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shader.Compile(FShaderProgram::Vertex, "shaders/glsl/screenquad.vp", "", 330);
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shader.Compile(FShaderProgram::Fragment, "shaders/glsl/fxaa.fp", defines, maxVersion);
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shader.SetFragDataLocation(0, "FragColor");
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shader.Link("shaders/glsl/fxaa");
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shader.SetAttribLocation(0, "PositionInProjection");
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InputTexture.Init(shader, "InputTexture");
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ReciprocalResolution.Init(shader, "ReciprocalResolution");
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}
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shader.Bind();
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}
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66
src/gl/shaders/gl_fxaashader.h
Normal file
66
src/gl/shaders/gl_fxaashader.h
Normal file
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@ -0,0 +1,66 @@
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//
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//---------------------------------------------------------------------------
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//
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// Copyright(C) 2016 Alexey Lysiuk
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// All rights reserved.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
|
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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// GNU Lesser General Public License for more details.
|
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//
|
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// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with this program. If not, see http://www.gnu.org/licenses/
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//
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//--------------------------------------------------------------------------
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//
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//
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// Fast approXimate Anti-Aliasing (FXAA) post-processing
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//
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#ifndef __GL_FXAASHADER_H__
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#define __GL_FXAASHADER_H__
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#include "gl_shaderprogram.h"
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class FFXAALumaShader
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{
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public:
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void Bind();
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FBufferedUniform1i InputTexture;
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private:
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FShaderProgram mShader;
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};
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class FFXAAShader
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{
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public:
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enum Quality
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{
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None,
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Low,
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Medium,
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High,
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Extreme,
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Count
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};
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void Bind();
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FBufferedUniform1i InputTexture;
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FBufferedUniform2f ReciprocalResolution;
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private:
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FShaderProgram mShaders[Count];
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};
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#endif // __GL_FXAASHADER_H__
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@ -2633,6 +2633,7 @@ GLPREFMNU_MULTISAMPLE = "Multisample";
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GLPREFMNU_TONEMAP = "Tonemap Mode";
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GLPREFMNU_BLOOM = "Bloom effect";
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GLPREFMNU_LENS = "Lens distortion effect";
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GLPREFMNU_FXAA = "FXAA Quality";
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// Option Values
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OPTVAL_SMART = "Smart";
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@ -2710,3 +2711,7 @@ OPTVAL_UNCHARTED2 = "Uncharted 2";
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OPTVAL_HEJLDAWSON = "Hejl Dawson";
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OPTVAL_REINHARD = "Reinhard";
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OPTVAL_PALETTE = "Palette";
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OPTVAL_LOW = "Low";
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OPTVAL_MEDIUM = "Medium";
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OPTVAL_HIGH = "High";
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OPTVAL_EXTREME = "Extreme";
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|
|
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@ -42,6 +42,15 @@ OptionValue "TonemapModes"
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5, "$OPTVAL_PALETTE"
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}
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OptionValue "FXAAQuality"
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{
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0, "$OPTVAL_OFF"
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1, "$OPTVAL_LOW"
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2, "$OPTVAL_MEDIUM"
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3, "$OPTVAL_HIGH"
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4, "$OPTVAL_EXTREME"
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}
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OptionValue "TextureFormats"
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{
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0, "$OPTVAL_RGBA8"
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@ -228,4 +237,5 @@ OptionMenu "GLPrefOptions"
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Option "$GLPREFMNU_TONEMAP", gl_tonemap, "TonemapModes"
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Option "$GLPREFMNU_BLOOM", gl_bloom, "OnOff"
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Option "$GLPREFMNU_LENS", gl_lens, "OnOff"
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Option "$GLPREFMNU_FXAA", gl_fxaa, "FXAAQuality"
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}
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|
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615
wadsrc/static/shaders/glsl/fxaa.fp
Normal file
615
wadsrc/static/shaders/glsl/fxaa.fp
Normal file
|
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@ -0,0 +1,615 @@
|
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//----------------------------------------------------------------------------------
|
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// File: es3-kepler\FXAA/FXAA3_11.h
|
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// SDK Version: v3.00
|
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// Email: gameworks@nvidia.com
|
||||
// Site: http://developer.nvidia.com/
|
||||
//
|
||||
// Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without
|
||||
// modification, are permitted provided that the following conditions
|
||||
// are met:
|
||||
// * Redistributions of source code must retain the above copyright
|
||||
// notice, this list of conditions and the following disclaimer.
|
||||
// * Redistributions in binary form must reproduce the above copyright
|
||||
// notice, this list of conditions and the following disclaimer in the
|
||||
// documentation and/or other materials provided with the distribution.
|
||||
// * Neither the name of NVIDIA CORPORATION nor the names of its
|
||||
// contributors may be used to endorse or promote products derived
|
||||
// from this software without specific prior written permission.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
|
||||
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
||||
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||||
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
||||
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
//
|
||||
//----------------------------------------------------------------------------------
|
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in vec2 TexCoord;
|
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out vec4 FragColor;
|
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uniform sampler2D InputTexture;
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#ifdef FXAA_LUMA_PASS
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void main()
|
||||
{
|
||||
vec3 tex = texture(InputTexture, TexCoord).rgb;
|
||||
vec3 luma = vec3(0.299, 0.587, 0.114);
|
||||
FragColor = vec4(tex, dot(tex, luma));
|
||||
}
|
||||
|
||||
#else // FXAA itself
|
||||
|
||||
//============================================================================
|
||||
// NVIDIA FXAA 3.11 by TIMOTHY LOTTES
|
||||
//============================================================================
|
||||
|
||||
#define FXAA_DISCARD 1
|
||||
|
||||
#define FXAA_GREEN_AS_LUMA 0
|
||||
|
||||
#define FxaaBool bool
|
||||
#define FxaaDiscard discard
|
||||
#define FxaaFloat float
|
||||
#define FxaaFloat2 vec2
|
||||
#define FxaaFloat3 vec3
|
||||
#define FxaaFloat4 vec4
|
||||
#define FxaaHalf float
|
||||
#define FxaaHalf2 vec2
|
||||
#define FxaaHalf3 vec3
|
||||
#define FxaaHalf4 vec4
|
||||
#define FxaaInt2 ivec2
|
||||
#define FxaaSat(x) clamp(x, 0.0, 1.0)
|
||||
#define FxaaTex sampler2D
|
||||
|
||||
#define FxaaTexTop(t, p) textureLod(t, p, 0.0)
|
||||
#define FxaaTexOff(t, p, o, r) textureLodOffset(t, p, 0.0, o)
|
||||
|
||||
#if (FXAA_GATHER4_ALPHA == 1)
|
||||
#define FxaaTexAlpha4(t, p) textureGather(t, p, 3)
|
||||
#define FxaaTexOffAlpha4(t, p, o) textureGatherOffset(t, p, o, 3)
|
||||
#define FxaaTexGreen4(t, p) textureGather(t, p, 1)
|
||||
#define FxaaTexOffGreen4(t, p, o) textureGatherOffset(t, p, o, 1)
|
||||
#endif
|
||||
|
||||
#if (FXAA_GREEN_AS_LUMA == 0)
|
||||
FxaaFloat FxaaLuma(FxaaFloat4 rgba) { return rgba.w; }
|
||||
#else
|
||||
FxaaFloat FxaaLuma(FxaaFloat4 rgba) { return rgba.y; }
|
||||
#endif
|
||||
|
||||
#if (FXAA_QUALITY__PRESET == 10)
|
||||
#define FXAA_QUALITY__PS 3
|
||||
#define FXAA_QUALITY__P0 1.5
|
||||
#define FXAA_QUALITY__P1 3.0
|
||||
#define FXAA_QUALITY__P2 12.0
|
||||
#elif (FXAA_QUALITY__PRESET == 11)
|
||||
#define FXAA_QUALITY__PS 4
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 3.0
|
||||
#define FXAA_QUALITY__P3 12.0
|
||||
#elif (FXAA_QUALITY__PRESET == 12)
|
||||
#define FXAA_QUALITY__PS 5
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 4.0
|
||||
#define FXAA_QUALITY__P4 12.0
|
||||
#elif (FXAA_QUALITY__PRESET == 13)
|
||||
#define FXAA_QUALITY__PS 6
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 4.0
|
||||
#define FXAA_QUALITY__P5 12.0
|
||||
#elif (FXAA_QUALITY__PRESET == 14)
|
||||
#define FXAA_QUALITY__PS 7
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 4.0
|
||||
#define FXAA_QUALITY__P6 12.0
|
||||
#elif (FXAA_QUALITY__PRESET == 15)
|
||||
#define FXAA_QUALITY__PS 8
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 2.0
|
||||
#define FXAA_QUALITY__P6 4.0
|
||||
#define FXAA_QUALITY__P7 12.0
|
||||
#elif (FXAA_QUALITY__PRESET == 20)
|
||||
#define FXAA_QUALITY__PS 3
|
||||
#define FXAA_QUALITY__P0 1.5
|
||||
#define FXAA_QUALITY__P1 2.0
|
||||
#define FXAA_QUALITY__P2 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 21)
|
||||
#define FXAA_QUALITY__PS 4
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 22)
|
||||
#define FXAA_QUALITY__PS 5
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 23)
|
||||
#define FXAA_QUALITY__PS 6
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 24)
|
||||
#define FXAA_QUALITY__PS 7
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 3.0
|
||||
#define FXAA_QUALITY__P6 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 25)
|
||||
#define FXAA_QUALITY__PS 8
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 2.0
|
||||
#define FXAA_QUALITY__P6 4.0
|
||||
#define FXAA_QUALITY__P7 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 26)
|
||||
#define FXAA_QUALITY__PS 9
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 2.0
|
||||
#define FXAA_QUALITY__P6 2.0
|
||||
#define FXAA_QUALITY__P7 4.0
|
||||
#define FXAA_QUALITY__P8 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 27)
|
||||
#define FXAA_QUALITY__PS 10
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 2.0
|
||||
#define FXAA_QUALITY__P6 2.0
|
||||
#define FXAA_QUALITY__P7 2.0
|
||||
#define FXAA_QUALITY__P8 4.0
|
||||
#define FXAA_QUALITY__P9 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 28)
|
||||
#define FXAA_QUALITY__PS 11
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 2.0
|
||||
#define FXAA_QUALITY__P6 2.0
|
||||
#define FXAA_QUALITY__P7 2.0
|
||||
#define FXAA_QUALITY__P8 2.0
|
||||
#define FXAA_QUALITY__P9 4.0
|
||||
#define FXAA_QUALITY__P10 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 29)
|
||||
#define FXAA_QUALITY__PS 12
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.5
|
||||
#define FXAA_QUALITY__P2 2.0
|
||||
#define FXAA_QUALITY__P3 2.0
|
||||
#define FXAA_QUALITY__P4 2.0
|
||||
#define FXAA_QUALITY__P5 2.0
|
||||
#define FXAA_QUALITY__P6 2.0
|
||||
#define FXAA_QUALITY__P7 2.0
|
||||
#define FXAA_QUALITY__P8 2.0
|
||||
#define FXAA_QUALITY__P9 2.0
|
||||
#define FXAA_QUALITY__P10 4.0
|
||||
#define FXAA_QUALITY__P11 8.0
|
||||
#elif (FXAA_QUALITY__PRESET == 39)
|
||||
#define FXAA_QUALITY__PS 12
|
||||
#define FXAA_QUALITY__P0 1.0
|
||||
#define FXAA_QUALITY__P1 1.0
|
||||
#define FXAA_QUALITY__P2 1.0
|
||||
#define FXAA_QUALITY__P3 1.0
|
||||
#define FXAA_QUALITY__P4 1.0
|
||||
#define FXAA_QUALITY__P5 1.5
|
||||
#define FXAA_QUALITY__P6 2.0
|
||||
#define FXAA_QUALITY__P7 2.0
|
||||
#define FXAA_QUALITY__P8 2.0
|
||||
#define FXAA_QUALITY__P9 2.0
|
||||
#define FXAA_QUALITY__P10 4.0
|
||||
#define FXAA_QUALITY__P11 8.0
|
||||
#endif
|
||||
|
||||
FxaaFloat4 FxaaPixelShader(FxaaFloat2 pos, FxaaTex tex, FxaaFloat2 fxaaQualityRcpFrame,
|
||||
FxaaFloat fxaaQualitySubpix, FxaaFloat fxaaQualityEdgeThreshold, FxaaFloat fxaaQualityEdgeThresholdMin)
|
||||
{
|
||||
FxaaFloat2 posM;
|
||||
posM.x = pos.x;
|
||||
posM.y = pos.y;
|
||||
#if (FXAA_GATHER4_ALPHA == 1)
|
||||
#if (FXAA_DISCARD == 0)
|
||||
FxaaFloat4 rgbyM = FxaaTexTop(tex, posM);
|
||||
#if (FXAA_GREEN_AS_LUMA == 0)
|
||||
#define lumaM rgbyM.w
|
||||
#else
|
||||
#define lumaM rgbyM.y
|
||||
#endif
|
||||
#endif
|
||||
#if (FXAA_GREEN_AS_LUMA == 0)
|
||||
FxaaFloat4 luma4A = FxaaTexAlpha4(tex, posM);
|
||||
FxaaFloat4 luma4B = FxaaTexOffAlpha4(tex, posM, FxaaInt2(-1, -1));
|
||||
#else
|
||||
FxaaFloat4 luma4A = FxaaTexGreen4(tex, posM);
|
||||
FxaaFloat4 luma4B = FxaaTexOffGreen4(tex, posM, FxaaInt2(-1, -1));
|
||||
#endif
|
||||
#if (FXAA_DISCARD == 1)
|
||||
#define lumaM luma4A.w
|
||||
#endif
|
||||
#define lumaE luma4A.z
|
||||
#define lumaS luma4A.x
|
||||
#define lumaSE luma4A.y
|
||||
#define lumaNW luma4B.w
|
||||
#define lumaN luma4B.z
|
||||
#define lumaW luma4B.x
|
||||
#else
|
||||
FxaaFloat4 rgbyM = FxaaTexTop(tex, posM);
|
||||
#if (FXAA_GREEN_AS_LUMA == 0)
|
||||
#define lumaM rgbyM.w
|
||||
#else
|
||||
#define lumaM rgbyM.y
|
||||
#endif
|
||||
FxaaFloat lumaS = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 0, 1), fxaaQualityRcpFrame.xy));
|
||||
FxaaFloat lumaE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1, 0), fxaaQualityRcpFrame.xy));
|
||||
FxaaFloat lumaN = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 0,-1), fxaaQualityRcpFrame.xy));
|
||||
FxaaFloat lumaW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 0), fxaaQualityRcpFrame.xy));
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat maxSM = max(lumaS, lumaM);
|
||||
FxaaFloat minSM = min(lumaS, lumaM);
|
||||
FxaaFloat maxESM = max(lumaE, maxSM);
|
||||
FxaaFloat minESM = min(lumaE, minSM);
|
||||
FxaaFloat maxWN = max(lumaN, lumaW);
|
||||
FxaaFloat minWN = min(lumaN, lumaW);
|
||||
FxaaFloat rangeMax = max(maxWN, maxESM);
|
||||
FxaaFloat rangeMin = min(minWN, minESM);
|
||||
FxaaFloat rangeMaxScaled = rangeMax * fxaaQualityEdgeThreshold;
|
||||
FxaaFloat range = rangeMax - rangeMin;
|
||||
FxaaFloat rangeMaxClamped = max(fxaaQualityEdgeThresholdMin, rangeMaxScaled);
|
||||
FxaaBool earlyExit = range < rangeMaxClamped;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
if(earlyExit)
|
||||
#if (FXAA_DISCARD == 1)
|
||||
FxaaDiscard;
|
||||
#else
|
||||
return rgbyM;
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_GATHER4_ALPHA == 0)
|
||||
FxaaFloat lumaNW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1,-1), fxaaQualityRcpFrame.xy));
|
||||
FxaaFloat lumaSE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1, 1), fxaaQualityRcpFrame.xy));
|
||||
FxaaFloat lumaNE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2( 1,-1), fxaaQualityRcpFrame.xy));
|
||||
FxaaFloat lumaSW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 1), fxaaQualityRcpFrame.xy));
|
||||
#else
|
||||
FxaaFloat lumaNE = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(1, -1), fxaaQualityRcpFrame.xy));
|
||||
FxaaFloat lumaSW = FxaaLuma(FxaaTexOff(tex, posM, FxaaInt2(-1, 1), fxaaQualityRcpFrame.xy));
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat lumaNS = lumaN + lumaS;
|
||||
FxaaFloat lumaWE = lumaW + lumaE;
|
||||
FxaaFloat subpixRcpRange = 1.0/range;
|
||||
FxaaFloat subpixNSWE = lumaNS + lumaWE;
|
||||
FxaaFloat edgeHorz1 = (-2.0 * lumaM) + lumaNS;
|
||||
FxaaFloat edgeVert1 = (-2.0 * lumaM) + lumaWE;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat lumaNESE = lumaNE + lumaSE;
|
||||
FxaaFloat lumaNWNE = lumaNW + lumaNE;
|
||||
FxaaFloat edgeHorz2 = (-2.0 * lumaE) + lumaNESE;
|
||||
FxaaFloat edgeVert2 = (-2.0 * lumaN) + lumaNWNE;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat lumaNWSW = lumaNW + lumaSW;
|
||||
FxaaFloat lumaSWSE = lumaSW + lumaSE;
|
||||
FxaaFloat edgeHorz4 = (abs(edgeHorz1) * 2.0) + abs(edgeHorz2);
|
||||
FxaaFloat edgeVert4 = (abs(edgeVert1) * 2.0) + abs(edgeVert2);
|
||||
FxaaFloat edgeHorz3 = (-2.0 * lumaW) + lumaNWSW;
|
||||
FxaaFloat edgeVert3 = (-2.0 * lumaS) + lumaSWSE;
|
||||
FxaaFloat edgeHorz = abs(edgeHorz3) + edgeHorz4;
|
||||
FxaaFloat edgeVert = abs(edgeVert3) + edgeVert4;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat subpixNWSWNESE = lumaNWSW + lumaNESE;
|
||||
FxaaFloat lengthSign = fxaaQualityRcpFrame.x;
|
||||
FxaaBool horzSpan = edgeHorz >= edgeVert;
|
||||
FxaaFloat subpixA = subpixNSWE * 2.0 + subpixNWSWNESE;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
if(!horzSpan) lumaN = lumaW;
|
||||
if(!horzSpan) lumaS = lumaE;
|
||||
if(horzSpan) lengthSign = fxaaQualityRcpFrame.y;
|
||||
FxaaFloat subpixB = (subpixA * (1.0/12.0)) - lumaM;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat gradientN = lumaN - lumaM;
|
||||
FxaaFloat gradientS = lumaS - lumaM;
|
||||
FxaaFloat lumaNN = lumaN + lumaM;
|
||||
FxaaFloat lumaSS = lumaS + lumaM;
|
||||
FxaaBool pairN = abs(gradientN) >= abs(gradientS);
|
||||
FxaaFloat gradient = max(abs(gradientN), abs(gradientS));
|
||||
if(pairN) lengthSign = -lengthSign;
|
||||
FxaaFloat subpixC = FxaaSat(abs(subpixB) * subpixRcpRange);
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat2 posB;
|
||||
posB.x = posM.x;
|
||||
posB.y = posM.y;
|
||||
FxaaFloat2 offNP;
|
||||
offNP.x = (!horzSpan) ? 0.0 : fxaaQualityRcpFrame.x;
|
||||
offNP.y = ( horzSpan) ? 0.0 : fxaaQualityRcpFrame.y;
|
||||
if(!horzSpan) posB.x += lengthSign * 0.5;
|
||||
if( horzSpan) posB.y += lengthSign * 0.5;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat2 posN;
|
||||
posN.x = posB.x - offNP.x * FXAA_QUALITY__P0;
|
||||
posN.y = posB.y - offNP.y * FXAA_QUALITY__P0;
|
||||
FxaaFloat2 posP;
|
||||
posP.x = posB.x + offNP.x * FXAA_QUALITY__P0;
|
||||
posP.y = posB.y + offNP.y * FXAA_QUALITY__P0;
|
||||
FxaaFloat subpixD = ((-2.0)*subpixC) + 3.0;
|
||||
FxaaFloat lumaEndN = FxaaLuma(FxaaTexTop(tex, posN));
|
||||
FxaaFloat subpixE = subpixC * subpixC;
|
||||
FxaaFloat lumaEndP = FxaaLuma(FxaaTexTop(tex, posP));
|
||||
/*--------------------------------------------------------------------------*/
|
||||
if(!pairN) lumaNN = lumaSS;
|
||||
FxaaFloat gradientScaled = gradient * 1.0/4.0;
|
||||
FxaaFloat lumaMM = lumaM - lumaNN * 0.5;
|
||||
FxaaFloat subpixF = subpixD * subpixE;
|
||||
FxaaBool lumaMLTZero = lumaMM < 0.0;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
lumaEndN -= lumaNN * 0.5;
|
||||
lumaEndP -= lumaNN * 0.5;
|
||||
FxaaBool doneN = abs(lumaEndN) >= gradientScaled;
|
||||
FxaaBool doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P1;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P1;
|
||||
FxaaBool doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P1;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P1;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P2;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P2;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P2;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P2;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 3)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P3;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P3;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P3;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P3;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 4)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P4;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P4;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P4;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P4;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 5)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P5;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P5;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P5;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P5;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 6)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P6;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P6;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P6;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P6;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 7)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P7;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P7;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P7;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P7;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 8)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P8;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P8;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P8;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P8;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 9)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P9;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P9;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P9;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P9;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 10)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P10;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P10;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P10;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P10;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 11)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P11;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P11;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P11;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P11;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
#if (FXAA_QUALITY__PS > 12)
|
||||
if(doneNP) {
|
||||
if(!doneN) lumaEndN = FxaaLuma(FxaaTexTop(tex, posN.xy));
|
||||
if(!doneP) lumaEndP = FxaaLuma(FxaaTexTop(tex, posP.xy));
|
||||
if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;
|
||||
if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;
|
||||
doneN = abs(lumaEndN) >= gradientScaled;
|
||||
doneP = abs(lumaEndP) >= gradientScaled;
|
||||
if(!doneN) posN.x -= offNP.x * FXAA_QUALITY__P12;
|
||||
if(!doneN) posN.y -= offNP.y * FXAA_QUALITY__P12;
|
||||
doneNP = (!doneN) || (!doneP);
|
||||
if(!doneP) posP.x += offNP.x * FXAA_QUALITY__P12;
|
||||
if(!doneP) posP.y += offNP.y * FXAA_QUALITY__P12;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
#endif
|
||||
/*--------------------------------------------------------------------------*/
|
||||
}
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat dstN = posM.x - posN.x;
|
||||
FxaaFloat dstP = posP.x - posM.x;
|
||||
if(!horzSpan) dstN = posM.y - posN.y;
|
||||
if(!horzSpan) dstP = posP.y - posM.y;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaBool goodSpanN = (lumaEndN < 0.0) != lumaMLTZero;
|
||||
FxaaFloat spanLength = (dstP + dstN);
|
||||
FxaaBool goodSpanP = (lumaEndP < 0.0) != lumaMLTZero;
|
||||
FxaaFloat spanLengthRcp = 1.0/spanLength;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaBool directionN = dstN < dstP;
|
||||
FxaaFloat dst = min(dstN, dstP);
|
||||
FxaaBool goodSpan = directionN ? goodSpanN : goodSpanP;
|
||||
FxaaFloat subpixG = subpixF * subpixF;
|
||||
FxaaFloat pixelOffset = (dst * (-spanLengthRcp)) + 0.5;
|
||||
FxaaFloat subpixH = subpixG * fxaaQualitySubpix;
|
||||
/*--------------------------------------------------------------------------*/
|
||||
FxaaFloat pixelOffsetGood = goodSpan ? pixelOffset : 0.0;
|
||||
FxaaFloat pixelOffsetSubpix = max(pixelOffsetGood, subpixH);
|
||||
if(!horzSpan) posM.x += pixelOffsetSubpix * lengthSign;
|
||||
if( horzSpan) posM.y += pixelOffsetSubpix * lengthSign;
|
||||
#if (FXAA_DISCARD == 1)
|
||||
return FxaaTexTop(tex, posM);
|
||||
#else
|
||||
return FxaaFloat4(FxaaTexTop(tex, posM).xyz, lumaM);
|
||||
#endif
|
||||
}
|
||||
|
||||
uniform vec2 ReciprocalResolution;
|
||||
|
||||
void main()
|
||||
{
|
||||
FragColor = FxaaPixelShader(TexCoord, InputTexture, ReciprocalResolution, 0.75f, 0.166f, 0.0833f);
|
||||
}
|
||||
|
||||
#endif // FXAA_LUMA_PASS
|
||||
Loading…
Reference in a new issue