1
0
Fork 0
fgdata/Shaders/ambient.frag
2012-05-18 09:00:48 +02:00

20 lines
645 B
GLSL

uniform sampler2D color_tex;
uniform sampler2D ao_tex;
uniform sampler2D normal_tex;
uniform sampler2D spec_emis_tex;
uniform vec4 fg_SunAmbientColor;
uniform bool ambientOcclusion;
uniform float ambientOcclusionStrength;
void main() {
vec2 coords = gl_TexCoord[0].xy;
float initialized = texture2D( spec_emis_tex, coords ).a;
if ( initialized < 0.1 )
discard;
vec3 tcolor = texture2D( color_tex, coords ).rgb;
float ao = 1.0;
if (ambientOcclusion) {
ao = 1.0 - ambientOcclusionStrength * (1.0 - texture2D( ao_tex, coords ).r);
}
gl_FragColor = vec4(tcolor * fg_SunAmbientColor.rgb * ao, 1.0);
}