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Alpha value for fade colormaps

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Sally Coolatta 2021-12-06 20:38:30 -05:00
parent be34cd699b
commit 8484ba9294
1 changed files with 8 additions and 10 deletions
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18
src/r_data.c
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@ -615,6 +615,7 @@ lighttable_t *R_CreateLightTable(extracolormap_t *extra_colormap)
{
double cmaskr, cmaskg, cmaskb, cdestr, cdestg, cdestb, cdestbright;
double maskamt = 0, othermask = 0;
double fmaskamt = 0, fothermask = 0;
UINT8 cr = R_GetRgbaR(extra_colormap->rgba),
cg = R_GetRgbaG(extra_colormap->rgba),
@ -622,8 +623,8 @@ lighttable_t *R_CreateLightTable(extracolormap_t *extra_colormap)
ca = R_GetRgbaA(extra_colormap->rgba),
cfr = R_GetRgbaR(extra_colormap->fadergba),
cfg = R_GetRgbaG(extra_colormap->fadergba),
cfb = R_GetRgbaB(extra_colormap->fadergba);
// cfa = R_GetRgbaA(extra_colormap->fadergba); // unused in software
cfb = R_GetRgbaB(extra_colormap->fadergba),
cfa = R_GetRgbaA(extra_colormap->fadergba);
UINT8 fadestart = extra_colormap->fadestart,
fadedist = extra_colormap->fadeend - extra_colormap->fadestart;
@ -654,14 +655,11 @@ lighttable_t *R_CreateLightTable(extracolormap_t *extra_colormap)
cdestb = cfb;
cdestbright = sqrt((cfr*cfr) + (cfg*cfg) + (cfb*cfb));
// fade alpha unused in software
// maskamt = (double)(cfa/24.0l);
// othermask = 1 - maskamt;
// maskamt /= 0xff;
fmaskamt = (double)(cfa/24.0l);
fothermask = 1 - fmaskamt;
//fmaskamt /= 0xff;
// cdestr *= maskamt;
// cdestg *= maskamt;
// cdestb *= maskamt;
(void)fothermask; // unused, but don't feel like commenting it out
/////////////////////
// This code creates the colormap array used by software renderer
@ -710,7 +708,7 @@ lighttable_t *R_CreateLightTable(extracolormap_t *extra_colormap)
}
// Add/subtract this value during fading.
brightChange[i] = fabs(cbest - cdist) / (double)fadedist;
brightChange[i] = (fabs(cbest - cdist) / (double)fadedist) * fmaskamt;
}
// Now allocate memory for the actual colormap array itself!