DXGL r402 - Code Review

Repository:	DXGL
Revision:	< r401‎ \| r402 \| r403 >
Date:	14:27, 24 August 2013
Author:	admin
Status:	new
Tags:
Comment:	Index palette entries to middle of texel in palette texture. Fixes compatibility with old Geforce 6 series GPUs.
Modified paths:	/ddraw/shaders.cpp (modified) (history)

Index: ddraw/shaders.cpp
—	—	@@ -48,7 +48,8 @@
49	49	void main() \n\
50	50	{ \n\
51	51	vec4 myindex = texture2D(tex0, gl_TexCoord[0].xy); \n\
52		~~- vec4 texel = texture2D(pal, myindex.xy); \n\~~
	52	+ vec2 index = vec2((myindex.x*((255.0/256.0)+(0.5/256.0))),0.5);\n\
	53	+ vec4 texel = texture2D(pal, index); \n\
53	54	gl_FragColor = texel; \n\
54	55	} ";
55	56

Diff [purge]