new stuff

assimp/test/models/glTF/CesiumMilkTruck/CesiumMilkTruck1FS.glsl

@@ -0,0 +1,18 @@
+precision highp float;
+varying vec3 v_normal;
+varying vec2 v_texcoord0;
+uniform sampler2D u_diffuse;
+uniform vec4 u_specular;
+uniform float u_shininess;
+void main(void) {
+vec3 normal = normalize(v_normal);
+vec4 color = vec4(0., 0., 0., 0.);
+vec4 diffuse = vec4(0., 0., 0., 1.);
+vec4 specular;
+diffuse = texture2D(u_diffuse, v_texcoord0);
+specular = u_specular;
+diffuse.xyz *= max(dot(normal,vec3(0.,0.,1.)), 0.);
+color.xyz += diffuse.xyz;
+color = vec4(color.rgb * diffuse.a, diffuse.a);
+gl_FragColor = color;
+}