dungeon_crawler: prototype/sdr/deferred.p.glsl annotate

dungeon_crawler

converting LIGHT meshes to lights

author	John Tsiombikas <nuclear@member.fsf.org>
date	Tue, 21 Aug 2012 06:33:36 +0300
parents	8a0ae6b4aa9b
children	d0e93b4d9ec9

rev	line source
nuclear@19	1 uniform sampler2D mrt0, mrt1, mrt2, mrt3;
nuclear@18	2 uniform vec2 tex_scale;
nuclear@18	3
nuclear@17	4 void main()
nuclear@17	5 {
nuclear@19	6 vec2 tc = gl_TexCoord[0].st;
nuclear@19	7
nuclear@19	8 vec4 texel;
nuclear@19	9 if(tc.x < 0.25) {
nuclear@19	10 texel = texture2D(mrt0, tc * vec2(4.0, 1.0) * tex_scale);
nuclear@19	11 } else if(tc.x < 0.5) {
nuclear@20	12 texel = texture2D(mrt1, (tc - vec2(0.25, 0.0)) * vec2(4.0, 1.0) * tex_scale);
nuclear@19	13 } else if(tc.x < 0.75) {
nuclear@20	14 texel = texture2D(mrt2, (tc - vec2(0.5, 0.0)) * vec2(4.0, 1.0) * tex_scale);
nuclear@19	15 } else {
nuclear@20	16 texel = texture2D(mrt3, (tc - vec2(0.75, 0.0)) * vec2(4.0, 1.0) * tex_scale);
nuclear@19	17 }
nuclear@19	18
nuclear@19	19 gl_FragColor = texel;
nuclear@17	20 }