//---------------------------------------------------------------------------------- // File: es3-kepler\FXAA/FXAA3_11.h // SDK Version: v3.00 // 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. // //---------------------------------------------------------------------------------- in vec2 TexCoord; out vec4 FragColor; uniform sampler2D InputTexture; #ifdef FXAA_LUMA_PASS 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