stk-code_catmod/data/shaders/lightblend.frag
vincentlj ec3fd4fa13 Light: Support for specularmap
The specular map is embedded in the alpha component of texture.
Alpha value of 1. means no specular, alpha of 0. means 100% specular.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14786 178a84e3-b1eb-0310-8ba1-8eac791a3b58
2013-12-25 20:19:18 +00:00

18 lines
455 B
GLSL

uniform sampler2D diffuse;
uniform sampler2D specular;
uniform sampler2D ambient_occlusion;
uniform sampler2D specular_map;
uniform vec3 ambient;
void main()
{
vec2 texc = gl_TexCoord[0].xy;
vec3 diffuse = texture2D(diffuse, texc).xyz;
vec3 spec = texture2D(specular, texc).xyz;
float specmap = texture2D(specular_map, texc).x;
float ao = texture2D(ambient_occlusion, texc).x;
gl_FragColor = vec4(diffuse + spec * specmap + ao * ambient, 1.0);
}