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[d3d9] Perform FF vertex clipping in world space

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Previously we were doing this in object space which is incorrect.

Closes #1446
This commit is contained in:
Joshua Ashton 2020-02-14 19:09:02 +00:00
parent cad3b69e82
commit 0c16cc7749
3 changed files with 13 additions and 4 deletions
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1
src/d3d9/d3d9_device.cpp
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@ -6012,6 +6012,7 @@ namespace dxvk {
D3D9FixedFunctionVS* data = reinterpret_cast<D3D9FixedFunctionVS*>(slice.mapPtr);
data->WorldView = WorldView;
data->NormalMatrix = NormalMatrix;
data->InverseView = transpose(inverse(m_state.transforms[GetTransformIndex(D3DTS_VIEW)]));
data->Projection = m_state.transforms[GetTransformIndex(D3DTS_PROJECTION)];
for (uint32_t i = 0; i < data->TexcoordMatrices.size(); i++)

15
src/d3d9/d3d9_fixed_function.cpp
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@ -418,6 +418,7 @@ namespace dxvk {
enum class D3D9FFVSMembers {
WorldViewMatrix,
NormalMatrix,
InverseViewMatrix,
ProjMatrix,
Texcoord0,
@ -462,6 +463,7 @@ namespace dxvk {
struct {
uint32_t worldview;
uint32_t normal;
uint32_t inverseView;
uint32_t proj;
uint32_t texcoord[8];
@ -580,7 +582,7 @@ namespace dxvk {
void emitPsSharedConstants();
void emitVsClipping();
void emitVsClipping(uint32_t vtx);
void alphaTestPS();
@ -1161,7 +1163,7 @@ namespace dxvk {
uint32_t pointSize = m_module.opFClamp(m_floatType, pointInfo.defaultValue, pointInfo.min, pointInfo.max);
m_module.opStore(m_vs.out.POINTSIZE, pointSize);
emitVsClipping();
emitVsClipping(vtx);
}
@ -1242,6 +1244,7 @@ namespace dxvk {
std::array<uint32_t, uint32_t(D3D9FFVSMembers::MemberCount)> members = {
m_mat4Type, // World
m_mat4Type, // View
m_mat4Type, // InverseView
m_mat4Type, // Proj
m_mat4Type, // Texture0
@ -1315,6 +1318,7 @@ namespace dxvk {
uint32_t member = 0;
m_module.setDebugMemberName(structType, member++, "WorldView");
m_module.setDebugMemberName(structType, member++, "Normal");
m_module.setDebugMemberName(structType, member++, "InverseView");
m_module.setDebugMemberName(structType, member++, "Projection");
m_module.setDebugMemberName(structType, member++, "TexcoordTransform0");
@ -1433,6 +1437,7 @@ namespace dxvk {
m_vs.constants.worldview = LoadConstant(m_mat4Type, uint32_t(D3D9FFVSMembers::WorldViewMatrix));
m_vs.constants.normal = LoadConstant(m_mat4Type, uint32_t(D3D9FFVSMembers::NormalMatrix));
m_vs.constants.inverseView = LoadConstant(m_mat4Type, uint32_t(D3D9FFVSMembers::InverseViewMatrix));
m_vs.constants.proj = LoadConstant(m_mat4Type, uint32_t(D3D9FFVSMembers::ProjMatrix));
for (uint32_t i = 0; i < caps::TextureStageCount; i++)
@ -2105,7 +2110,9 @@ namespace dxvk {
}
void D3D9FFShaderCompiler::emitVsClipping() {
void D3D9FFShaderCompiler::emitVsClipping(uint32_t vtx) {
uint32_t worldPos = m_module.opMatrixTimesVector(m_vec4Type, m_vs.constants.inverseView, vtx);
uint32_t clipPlaneCountId = m_module.constu32(caps::MaxClipPlanes);
uint32_t floatType = m_module.defFloatType(32);
@ -2163,7 +2170,7 @@ namespace dxvk {
m_module.defPointerType(vec4Type, spv::StorageClassUniform),
clipPlaneBlock, blockMembers.size(), blockMembers.data()));
uint32_t distId = m_module.opDot(floatType, m_vs.in.POSITION, planeId);
uint32_t distId = m_module.opDot(floatType, worldPos, planeId);
m_module.opStore(
m_module.opAccessChain(

1
src/d3d9/d3d9_state.h
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@ -113,6 +113,7 @@ namespace dxvk {
struct D3D9FixedFunctionVS {
Matrix4 WorldView;
Matrix4 NormalMatrix;
Matrix4 InverseView;
Matrix4 Projection;
std::array<Matrix4, 8> TexcoordMatrices;