From 08fc5342a92c57fdd9008e60f357b8baa80cd867 Mon Sep 17 00:00:00 2001 From: Joshua Ashton Date: Tue, 4 Feb 2020 21:36:31 +0000 Subject: [PATCH] [dxso] Initialize vPos in shaders if we have pixel fog Fixes some fog related regressions since we deferred this --- src/dxso/dxso_compiler.cpp | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/dxso/dxso_compiler.cpp b/src/dxso/dxso_compiler.cpp index e03ddc91..e12b05c8 100644 --- a/src/dxso/dxso_compiler.cpp +++ b/src/dxso/dxso_compiler.cpp @@ -3561,6 +3561,15 @@ void DxsoCompiler::emitControlFlowGenericLoop( this->emitInputSetup(); + bool canUsePixelFog = m_programInfo.majorVersion() < 3; + + if (canUsePixelFog) { + // Look up vPos so it gets initted. + DxsoRegister vPos; + vPos.id = DxsoRegisterId{ DxsoRegisterType::MiscType, DxsoMiscTypeIndices::MiscTypePosition }; + auto vPosPtr = this->emitGetOperandPtr(vPos); + } + if (m_ps.vPos.id != 0) { DxsoRegisterPointer fragCoord = this->emitRegisterPtr( "ps_frag_coord", DxsoScalarType::Float32, 4, 0,