Files
OpenRA/glsl/vxl.frag
2013-06-04 20:40:24 +12:00

18 lines
554 B
GLSL

uniform sampler2D Palette, DiffuseTexture;
uniform vec2 PaletteRows;
uniform vec4 LightDirection;
uniform vec3 AmbientLight, DiffuseLight;
void main()
{
vec4 x = texture2D(DiffuseTexture, gl_TexCoord[0].st);
vec4 color = texture2D(Palette, vec2(dot(x, gl_TexCoord[1]), PaletteRows.x));
if (color.a < 0.01)
discard;
vec4 normal = (2.0*texture2D(Palette, vec2(dot(x, gl_TexCoord[2]), PaletteRows.y)) - 1.0);
vec3 intensity = AmbientLight + DiffuseLight*max(dot(normal, LightDirection), 0.0);
gl_FragColor = vec4(intensity*color.rgb, color.a);
}