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disable spot light if the extent is zero

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This commit is contained in:
Ian Curtis 2016-06-29 20:53:19 +00:00
parent 1c39956568
commit 732bff2769
1 changed files with 13 additions and 8 deletions
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21
Src/Graphics/New3D/New3D.cpp
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@ -696,15 +696,20 @@ void CNew3D::RenderViewport(UINT32 addr)
vp->lightingParams[5] = 0.0; // reserved
// Spotlight
int spotColorIdx = (vpnode[0x20] >> 11) & 7; // spotlight color index
vp->spotEllipse[0] = (float)((vpnode[0x1E] >> 3) & 0x1FFF); // spotlight X position (fractional component?)
vp->spotEllipse[1] = (float)((vpnode[0x1D] >> 3) & 0x1FFF); // spotlight Y
vp->spotEllipse[2] = (float)((vpnode[0x1E] >> 16) & 0xFFFF); // spotlight X size (16-bit? May have fractional component below bit 16)
vp->spotEllipse[3] = (float)((vpnode[0x1D] >> 16) & 0xFFFF); // spotlight Y size
int spotColorIdx = (vpnode[0x20] >> 11) & 7; // spotlight color index
vp->spotEllipse[0] = (float)((vpnode[0x1E] >> 3) & 0x1FFF); // spotlight X position (fractional component?)
vp->spotEllipse[1] = (float)((vpnode[0x1D] >> 3) & 0x1FFF); // spotlight Y
vp->spotEllipse[2] = (float)((vpnode[0x1E] >> 16) & 0xFFFF); // spotlight X size (16-bit? May have fractional component below bit 16)
vp->spotEllipse[3] = (float)((vpnode[0x1D] >> 16) & 0xFFFF); // spotlight Y size
vp->spotRange[0] = 1.0f / (*(float *)&vpnode[0x21]); // spotlight start
vp->spotRange[1] = *(float *)&vpnode[0x1F]; // spotlight extent
vp->spotColor[0] = color[spotColorIdx][0]; // spotlight color
vp->spotRange[0] = 1.0f / (*(float *)&vpnode[0x21]); // spotlight start
vp->spotRange[1] = *(float *)&vpnode[0x1F]; // spotlight extent
if (vp->spotRange[1] == 0) { // if light extent = 0 light is effectively disabled
spotColorIdx = 0;
}
vp->spotColor[0] = color[spotColorIdx][0]; // spotlight color
vp->spotColor[1] = color[spotColorIdx][1];
vp->spotColor[2] = color[spotColorIdx][2];