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OpenGL2: Fix inaccurate RGBM calculation.

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SmileTheory 2013-09-16 14:26:42 -07:00
parent e80faf812e
commit a408a2bdae
1 changed files with 7 additions and 11 deletions
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18
code/renderergl2/tr_bsp.c
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@ -150,22 +150,18 @@ void ColorToRGBM(const vec3_t color, unsigned char rgbm[4])
VectorScale(color, 1.0f / 32.0f, sample); VectorScale(color, 1.0f / 32.0f, sample);
maxComponent = sample[0]; maxComponent = MAX(sample[0], sample[1]);
if(sample[1] > maxComponent) maxComponent = MAX(maxComponent, sample[2]);
maxComponent = sample[1]; maxComponent = CLAMP(maxComponent, 1.0f/255.0f, 1.0f);
if(sample[2] > maxComponent)
maxComponent = sample[2];
if(0.000001f > maxComponent)
maxComponent = 0.000001f;
if(maxComponent > 1.0f)
maxComponent = 1.0f;
VectorScale(sample, 1.0f / maxComponent, sample); rgbm[3] = (unsigned char) ceil(maxComponent * 255.0f);
maxComponent = 255.0f / rgbm[3];
VectorScale(sample, maxComponent, sample);
rgbm[0] = (unsigned char) (sample[0] * 255); rgbm[0] = (unsigned char) (sample[0] * 255);
rgbm[1] = (unsigned char) (sample[1] * 255); rgbm[1] = (unsigned char) (sample[1] * 255);
rgbm[2] = (unsigned char) (sample[2] * 255); rgbm[2] = (unsigned char) (sample[2] * 255);
rgbm[3] = (unsigned char) (maxComponent * 255);
} }
void ColorToRGBA16F(const vec3_t color, unsigned short rgba16f[4]) void ColorToRGBA16F(const vec3_t color, unsigned short rgba16f[4])