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28 lines
470 B
C++
28 lines
470 B
C++
#include <core\defines.h>
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#include "math.h"
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#include "fx.h"
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#include "asmdma.h"
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namespace NxPs2
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{
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void Fx::SetupFogPalette(uint32 FogRGBA, float Exponent)
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{
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int i,j;
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float t, alpha = (float)(int)(FogRGBA>>24);
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for (i=255,t=1.0f/256.0f; i>=0; i--,t+=1.0f/256.0f)
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{
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j = (i&0xE7) | (i&0x10)>>1 | (i&0x08)<<1;
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FogPalette[j] = (FogRGBA & 0x00FFFFFF) | (uint32)(int)(alpha * powf(t,Exponent) + 0.5f)<<24;
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}
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}
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} // namespace NxPs2
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