Assorted edits. Created new shaders.

assets/shaders/singleDiffuseLight/singleDiffuseLight_frag.glsl

@@ -0,0 +1,17 @@
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+// Light color.
+uniform vec3 u_lightColor;
+// Diffuse surface color.
+uniform vec3 u_diffColor;
+// Specular color.
+uniform vec3 u_specColor;
+// Ambient light color.
+uniform vec3 u_ambColor;
+
+void main(){
+	// TODO: Implement per pixel diffuse lighting.
+	gl_FragColor = vec4(u_diffColor, 1.0);
+}

assets/shaders/singleDiffuseLight/singleDiffuseLight_vert.glsl

@@ -0,0 +1,9 @@
+// Model-view matrix.
+uniform mat4 u_projTrans;
+
+// Vertex position in world coordinates.
+attribute vec4 a_position;
+
+void main(){
+	gl_Position = u_projTrans * a_position;
+}