OrdinaryMagician/vkdoom_m
OrdinaryMagician/vkdoom_m
1
Fork 0
Code Activity

Do not use the shader to handle STYLEF_RedIsAlpha.

Browse source 
Turns out that the name doesn't accurately describe what it does.
It is correct for images that come with their own palette or are true color.
But for images using the game palette it doesn't use the red channel to determine translucency but the palette index! Ugh...

This means it cannot be done with a simple operation in the shader because it won't get a proper source image. The only solution is to create a separate texture.
This commit is contained in:
Christoph Oelckers 2014-05-11 23:56:53 +02:00
commit b9a6fe80a4
12 changed files with 14 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/gl/renderer/gl_lightdata.cpp
View file

@ -144,11 +144,7 @@ void gl_GetRenderStyle(FRenderStyle style, bool drawopaque, bool allowcolorblend
int blendequation = renderops[style.BlendOp&15];
int texturemode = drawopaque? TM_OPAQUE : TM_MODULATE;
if (style.Flags & STYLEF_RedIsAlpha)
{
texturemode = TM_REDTOALPHA;
}
else if (style.Flags & STYLEF_ColorIsFixed)
if (style.Flags & STYLEF_ColorIsFixed)
{
texturemode = TM_MASK;
}