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Cxbx-Reloaded
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Merge pull request #1637 from LukeUsher/smashing-drive-non-nvidia 

'Fix' Smashing drive non-nvidia hardware
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Luke Usher 2019-06-19 09:11:05 +01:00 committed by GitHub
parent 1a62f5e1b6 cf7fcc1603
commit 654a4c0e4d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 16 additions and 3 deletions
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17
src/core/hle/D3D8/XbState.cpp
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@ -27,6 +27,7 @@
#define _XBOXKRNL_DEFEXTRN_
#define LOG_PREFIX CXBXR_MODULE::D3DST
#include "core\kernel\init\CxbxKrnl.h"
#include "core\kernel\support\Emu.h"
#include "core\kernel\support\EmuXTL.h"
@ -90,10 +91,22 @@ void UpdateDeferredRenderStates()
// Convert from Xbox Data Formats to PC
switch (RenderState) {
case XTL::X_D3DRS_FOGSTART:
case XTL::X_D3DRS_FOGEND: {
// HACK: If the fog start/fog-end are negative, make them positive
// This fixes Smashing Drive on non-nvidia hardware
// Cause appears to be non-nvidia drivers clamping values < 0 to 0
// Resulting in the fog formula becoming (0 - d) / 0, which breaks rendering
// This prevents that scenario for screen-space fog, *hopefully* without breaking eye-based fog also
float fogValue = *(float*)&Value;
if (fogValue < 0.0f) {
LOG_TEST_CASE("FOGSTART/FOGEND below 0");
fogValue = std::abs(fogValue);
Value = *(DWORD*)&Value;
}
} break;
case XTL::X_D3DRS_FOGENABLE:
case XTL::X_D3DRS_FOGTABLEMODE:
case XTL::X_D3DRS_FOGSTART:
case XTL::X_D3DRS_FOGEND:
case XTL::X_D3DRS_FOGDENSITY:
case XTL::X_D3DRS_RANGEFOGENABLE:
case XTL::X_D3DRS_LIGHTING: