From 8484ba929472ec1373a087a7b5c80dd50dc87fe9 Mon Sep 17 00:00:00 2001 From: Sally Coolatta Date: Mon, 6 Dec 2021 20:38:30 -0500 Subject: [PATCH] Alpha value for fade colormaps --- src/r_data.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/src/r_data.c b/src/r_data.c index 04b6c232b..46ae0dbd2 100644 --- a/src/r_data.c +++ b/src/r_data.c @@ -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!