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Racical increase in brightness for the Ambient shader.

shapetextures
Clonkonaut 2015-09-14 17:08:50 +02:00
parent f54067c819
commit 1c41df401b
1 changed files with 18 additions and 6 deletions
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24
planet/Graphics.ocg/AmbientShader.glsl
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@ -29,12 +29,24 @@ slice(light+1)
// For landscape, ambient brightness is coming from top
vec3 ambientDir = vec3(0.0, -1.0, 0.0);
light = mix(light, 1.0 + 1.0 * dot(normal, ambientDir), ambient);
#ifdef OC_HAVE_2PX
light2 = mix(light2, 1.0 + 1.0 * dot(normal2, ambientDir), ambient);
#endif
#ifdef OC_HAVE_2PX
light2 = mix(light2, 1.0 + 1.0 * dot(normal2, ambientDir), ambient);
#endif
#else
// For objects, ambient brightness is coming from the front
vec3 ambientDir = vec3(0.0, 0.0, 1.0);
light = mix(light, max(max(dot(normal, ambientDir), 0.0), cullMode * max(dot(-normal, ambientDir), 0.0)), ambient);
#ifdef OC_SKY
// For sky, ambient brightness is coming from the front
vec3 ambientDir = vec3(0.0, 0.0, 1.0);
light = mix(light, max(max(dot(normal, ambientDir), 0.0), cullMode * max(dot(-normal, ambientDir), 0.0)), ambient);
#else
// For objects, ambient brightness is coming from the sky
vec3 ambientDir = normalize(vec3(0.5, -0.5, 0.5));
float ambientLight = max(dot(normal, ambientDir), 0.8);
// Also, objects do have a rimlight
vec3 rimDir = vec3(0.0, 0.0, 1.0);
float rimLight = 1.0 - dot(normal, rimDir);
ambientLight += ambientLight * rimLight;
light = mix(light, ambientLight, ambient);
#endif
#endif
}