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Reverse depth & 32F buffer format

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-Adds reversed depth projection model, dramatically increasing depth buffer effective resolution.
-Adds 32F depth 8U stencil format GFXFormatD32FS8X24 (following DX naming conventions). Note this is a 64-bit format, and likely not suitable for mobile platforms. Revert to GFXFormatD24S8 in renderManager.tscript for mobile & "ancient" platforms.
-Corrects alignment of texture type details array.
This commit is contained in:
AtomicWalrus 2023-04-14 20:13:28 -06:00
parent c08fa359d2
commit 75625dc679
37 changed files with 91 additions and 57 deletions
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11
Engine/source/lighting/shadowMap/pssmLightShadowMap.cpp
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@ -168,6 +168,7 @@ void PSSMLightShadowMap::_roundProjection(const MatrixF& lightMat, const MatrixF
{
// Round to the nearest shadowmap texel, this helps reduce shimmering
MatrixF currentProj = GFX->getProjectionMatrix();
currentProj.reverseProjection();
currentProj = cropMatrix * currentProj * lightMat;
// Project origin to screen.
@ -226,13 +227,15 @@ void PSSMLightShadowMap::_render( RenderPassManager* renderPass,
mTarget->attachTexture( GFXTextureTarget::Color0, mShadowMapTex );
mTarget->attachTexture( GFXTextureTarget::DepthStencil, mShadowMapDepth );
GFX->setActiveRenderTarget( mTarget );
GFX->clear( GFXClearStencil | GFXClearZBuffer | GFXClearTarget, ColorI(255,255,255), 1.0f, 0 );
GFX->clear( GFXClearStencil | GFXClearZBuffer | GFXClearTarget, ColorI(255,255,255), 0.0f, 0 );
// Calculate our standard light matrices
MatrixF lightMatrix;
calcLightMatrices( lightMatrix, diffuseState->getCameraFrustum() );
lightMatrix.inverse();
MatrixF lightViewProj = GFX->getProjectionMatrix() * lightMatrix;
MatrixF tempProjMat = GFX->getProjectionMatrix();
tempProjMat.reverseProjection();
MatrixF lightViewProj = tempProjMat * lightMatrix;
// TODO: This is just retrieving the near and far calculated
// in calcLightMatrices... we should make that clear.
@ -245,7 +248,7 @@ void PSSMLightShadowMap::_render( RenderPassManager* renderPass,
_calcSplitPos(fullFrustum);
mWorldToLightProj = GFX->getProjectionMatrix() * toLightSpace;
mWorldToLightProj = tempProjMat * toLightSpace;
// Apply the PSSM
const F32 savedSmallestVisible = TSShapeInstance::smSmallestVisiblePixelSize;
@ -320,7 +323,9 @@ void PSSMLightShadowMap::_render( RenderPassManager* renderPass,
// Crop matrix multiply needs to be post-projection.
MatrixF alightProj = GFX->getProjectionMatrix();
alightProj.reverseProjection();
alightProj = cropMatrix * alightProj;
alightProj.reverseProjection();
// Set our new projection
GFX->setProjectionMatrix(alightProj);