diff options
Diffstat (limited to 'indra/newview/llreflectionmapmanager.cpp')
| -rw-r--r-- | indra/newview/llreflectionmapmanager.cpp | 114 |
1 files changed, 111 insertions, 3 deletions
diff --git a/indra/newview/llreflectionmapmanager.cpp b/indra/newview/llreflectionmapmanager.cpp index 752427f0fa..bde8c0c51c 100644 --- a/indra/newview/llreflectionmapmanager.cpp +++ b/indra/newview/llreflectionmapmanager.cpp @@ -80,7 +80,11 @@ void LLReflectionMapManager::update() if (mTexture.isNull()) { mTexture = new LLCubeMapArray(); - mTexture->allocate(LL_REFLECTION_PROBE_RESOLUTION, 3, LL_REFLECTION_PROBE_COUNT); + // store LL_REFLECTION_PROBE_COUNT+2 cube maps, final two cube maps are used for render target and radiance map generation source) + mTexture->allocate(LL_REFLECTION_PROBE_RESOLUTION, 3, LL_REFLECTION_PROBE_COUNT+2); + + mIrradianceMaps = new LLCubeMapArray(); + mIrradianceMaps->allocate(LL_IRRADIANCE_MAP_RESOLUTION, 3, LL_REFLECTION_PROBE_COUNT); } if (!mRenderTarget.isComplete()) @@ -395,7 +399,14 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) gPipeline.mRT = &gPipeline.mMainRT; mRenderTarget.flush(); - // generate mipmaps + S32 targetIdx = LL_REFLECTION_PROBE_COUNT; + + if (probe != mUpdatingProbe) + { // this is the "realtime" probe that's updating every frame, use the secondary scratch space channel + targetIdx += 1; + } + + // downsample to placeholder map { LLGLDepthTest depth(GL_FALSE, GL_FALSE); LLGLDisable cull(GL_CULL_FACE); @@ -414,7 +425,8 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) S32 mips = log2((F32)LL_REFLECTION_PROBE_RESOLUTION) + 0.5f; - for (int i = 0; i < mMipChain.size(); ++i) + //for (int i = 0; i < mMipChain.size(); ++i) + for (int i = 0; i < 1; ++i) { LL_PROFILE_GPU_ZONE("probe mip"); mMipChain[i].bindTarget(); @@ -451,6 +463,8 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) if (mip >= 0) { mTexture->bind(0); + //glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, probe->mCubeIndex * 6 + face, 0, 0, res, res); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, targetIdx * 6 + face, 0, 0, res, res); glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, mip, 0, 0, probe->mCubeIndex * 6 + face, 0, 0, res, res); mTexture->unbind(); } @@ -463,6 +477,100 @@ void LLReflectionMapManager::updateProbeFace(LLReflectionMap* probe, U32 face) gReflectionMipProgram.unbind(); } + + if (face == 5) + { + //generate radiance map + gRadianceGenProgram.bind(); + S32 channel = gRadianceGenProgram.enableTexture(LLShaderMgr::REFLECTION_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY); + mTexture->bind(channel); + static LLStaticHashedString sSourceIdx("sourceIdx"); + gRadianceGenProgram.uniform1i(sSourceIdx, targetIdx); + + static LLStaticHashedString sMipLevel("mipLevel"); + + for (int i = 1; i < mMipChain.size(); ++i) + { + for (int cf = 0; cf < 6; ++cf) + { // for each cube face + LLCoordFrame frame; + frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]); + + F32 mat[16]; + frame.getOpenGLRotation(mat); + gGL.loadMatrix(mat); + + mMipChain[i].bindTarget(); + static LLStaticHashedString sRoughness("roughness"); + + gRadianceGenProgram.uniform1f(sRoughness, (F32)i / (F32)(mMipChain.size() - 1)); + gRadianceGenProgram.uniform1f(sMipLevel, llmax((F32)(i - 1), 0.f)); + if (i > 0) + { + gRadianceGenProgram.uniform1i(sSourceIdx, probe->mCubeIndex); + } + gGL.begin(gGL.QUADS); + gGL.vertex3f(-1, -1, -1); + gGL.vertex3f(1, -1, -1); + gGL.vertex3f(1, 1, -1); + gGL.vertex3f(-1, 1, -1); + gGL.end(); + gGL.flush(); + + S32 res = mMipChain[i].getWidth(); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, i, 0, 0, probe->mCubeIndex * 6 + cf, 0, 0, res, res); + mMipChain[i].flush(); + } + } + gRadianceGenProgram.unbind(); + + //generate irradiance map + gIrradianceGenProgram.bind(); + channel = gIrradianceGenProgram.enableTexture(LLShaderMgr::REFLECTION_PROBES, LLTexUnit::TT_CUBE_MAP_ARRAY); + mTexture->bind(channel); + + gIrradianceGenProgram.uniform1i(sSourceIdx, probe->mCubeIndex); + + int start_mip = 0; + // find the mip target to start with based on irradiance map resolution + for (start_mip = 0; start_mip < mMipChain.size(); ++start_mip) + { + if (mMipChain[start_mip].getWidth() == LL_IRRADIANCE_MAP_RESOLUTION) + { + break; + } + } + + for (int i = start_mip; i < mMipChain.size(); ++i) + { + for (int cf = 0; cf < 6; ++cf) + { // for each cube face + LLCoordFrame frame; + frame.lookAt(LLVector3(0, 0, 0), LLCubeMapArray::sClipToCubeLookVecs[cf], LLCubeMapArray::sClipToCubeUpVecs[cf]); + + F32 mat[16]; + frame.getOpenGLRotation(mat); + gGL.loadMatrix(mat); + + mMipChain[i].bindTarget(); + + gGL.begin(gGL.QUADS); + gGL.vertex3f(-1, -1, -1); + gGL.vertex3f(1, -1, -1); + gGL.vertex3f(1, 1, -1); + gGL.vertex3f(-1, 1, -1); + gGL.end(); + gGL.flush(); + + S32 res = mMipChain[i].getWidth(); + mIrradianceMaps->bind(channel); + glCopyTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, i - start_mip, 0, 0, probe->mCubeIndex * 6 + cf, 0, 0, res, res); + mTexture->bind(channel); + mMipChain[i].flush(); + } + } + gIrradianceGenProgram.unbind(); + } } void LLReflectionMapManager::rebuild() |