Fragment shader optimizations

[dragonblocks_alpha.git] / shaders / 3d / vertex.glsl

diff --git a/shaders/3d/vertex.glsl b/shaders/3d/vertex.glsl
index bb991ae628cccdbd53c344d5a08f5228043cfade..8d48d5347055f51dad4c91841c5aef4389b4c8d4 100755 (executable)
--- a/shaders/3d/vertex.glsl
+++ b/shaders/3d/vertex.glsl
@@ -12,6 +12,9 @@ out vec3 fragmentColor;
 
 uniform mat4 model;
 uniform mat4 VP;
+uniform float daylight;
+uniform float ambientLight;
+uniform vec3 lightDir;
 
 void main()
 {
@@ -23,4 +26,9 @@ void main()
        fragmentTextureIndex = vertexTextureIndex;
        fragmentTextureCoords = vertexTextureCoords;
        fragmentColor = vertexColor;
+
+       float diffuseLight = 0.3 * daylight * clamp(dot(normalize(fragmentNormal), normalize(lightDir)), 0.0, 1.0);
+       float light = ambientLight + diffuseLight;
+
+       fragmentColor *= light;
 }