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https://bitbucket.org/CPMADevs/cnq3
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103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
/*
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===========================================================================
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Copyright (C) 2023-2024 Gian 'myT' Schellenbaum
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This file is part of Challenge Quake 3 (CNQ3).
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Challenge Quake 3 is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Challenge Quake 3 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
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===========================================================================
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*/
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// Cinematic Rendering Pipeline - OIT resolve pass
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#include "crp_local.h"
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#include "compshaders/crp/fullscreen.h"
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#include "compshaders/crp/transp_resolve.h"
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#pragma pack(push, 4)
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struct TranspResolveRC
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{
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uint32_t renderTargetTexture;
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uint32_t shaderIndexBuffer;
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uint32_t indexTexture;
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uint32_t fragmentBuffer;
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uint16_t centerPixelX;
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uint16_t centerPixelY;
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uint32_t depthTexture;
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float linearDepthA;
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float linearDepthB;
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float scissorMinX;
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float scissorMinY;
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float scissorMaxX;
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float scissorMaxY;
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};
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#pragma pack(pop)
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void TranspResolve::Init()
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{
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GraphicsPipelineDesc desc("OIT Resolve");
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desc.shortLifeTime = true;
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desc.vertexShader = ShaderByteCode(g_fullscreen_vs);
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desc.pixelShader = ShaderByteCode(g_transp_resolve_ps);
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desc.depthStencil.DisableDepth();
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desc.rasterizer.cullMode = CT_TWO_SIDED;
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desc.AddRenderTarget(0, crp.renderTargetFormat);
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pipeline = CreateGraphicsPipeline(desc);
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}
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void TranspResolve::Draw(const drawSceneViewCommand_t& cmd)
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{
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if(cmd.numTranspSurfs <= 0)
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{
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return;
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}
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srp.renderMode = RenderMode::World;
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SCOPED_RENDER_PASS("OIT Resolve", 1.0f, 0.5f, 0.5f);
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CmdSetViewportAndScissor(0, 0, glConfig.vidWidth, glConfig.vidHeight);
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crp.SwapRenderTargets();
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CmdBeginBarrier();
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CmdTextureBarrier(crp.GetReadRenderTarget(), ResourceStates::PixelShaderAccessBit);
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CmdTextureBarrier(crp.GetWriteRenderTarget(), ResourceStates::RenderTargetBit);
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CmdTextureBarrier(crp.oitIndexTexture, ResourceStates::UnorderedAccessBit);
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CmdTextureBarrier(crp.depthTexture, ResourceStates::PixelShaderAccessBit);
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CmdBufferBarrier(crp.oitFragmentBuffer, ResourceStates::UnorderedAccessBit);
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CmdBufferBarrier(srp.traceRenderBuffer, ResourceStates::UnorderedAccessBit);
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CmdEndBarrier();
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TranspResolveRC rc = {};
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rc.fragmentBuffer = GetBufferIndexUAV(crp.oitFragmentBuffer);
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rc.indexTexture = GetTextureIndexUAV(crp.oitIndexTexture, 0);
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rc.renderTargetTexture = GetTextureIndexSRV(crp.GetReadRenderTarget());
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rc.shaderIndexBuffer = GetBufferIndexUAV(srp.traceRenderBuffer);
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rc.centerPixelX = glConfig.vidWidth / 2;
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rc.centerPixelY = glConfig.vidHeight / 2;
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rc.depthTexture = GetTextureIndexSRV(crp.depthTexture);
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RB_LinearDepthConstants(&rc.linearDepthA, &rc.linearDepthB);
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rc.scissorMinX = backEnd.viewParms.viewportX;
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rc.scissorMinY = backEnd.viewParms.viewportY;
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rc.scissorMaxX = rc.scissorMinX + backEnd.viewParms.viewportWidth - 1;
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rc.scissorMaxY = rc.scissorMinY + backEnd.viewParms.viewportHeight - 1;
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CmdBindRenderTargets(1, &crp.renderTarget, NULL);
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CmdBindPipeline(pipeline);
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CmdSetGraphicsRootConstants(0, sizeof(rc), &rc);
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CmdDraw(3, 0);
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}
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