GLSL shaders

<script type="x-shader/x-vertex" id="vs">
	attribute vec3 VertexPosition;
	attribute vec3 VertexNormal;
	attribute vec2 TextureCoord;

	uniform mat4 World;
	uniform mat4 View;
	uniform mat4 Projection;

	uniform vec3 AmbientLight;
	uniform float AmbientLightIntensity;

	uniform vec3 DiffuseLight;
	uniform float DiffuseLightIntensity;
	uniform vec3 DiffuseLightSource;
	uniform mat4 WorldTransposedInverse;

	varying vec2 TexCoord;
	varying vec4 Lighting;

	void main(void)
	{
		gl_Position = Projection * View * World * vec4(VertexPosition, 1.0);
		TexCoord = TextureCoord;

		vec4 Normal = normalize(WorldTransposedInverse * vec4(VertexNormal, 1.0));
		float DiffuseLightVertexIntensity  = dot(Normal, normalize(vec4(DiffuseLightSource, 1.0)));

		Lighting = vec4(AmbientLight * AmbientLightIntensity + DiffuseLight * DiffuseLightIntensity * DiffuseLightVertexIntensity, 1.0);
	}
</script>

<script type="x-shader/x-fragment" id="fs">
	#ifdef GL_ES
		precision highp float;
	#endif

	varying vec2 TexCoord;
	varying vec4 Lighting;

	uniform sampler2D SamplerState;
	uniform bool EnableLighting;

	void main(void)
	{
		vec4 textureColor = vec4(texture2D(SamplerState, TexCoord).rgb, 1.0);
		if(EnableLighting)
			gl_FragColor = clamp(textureColor + Lighting, 0.0, 1.0);
		else
			gl_FragColor = textureColor;
	}
</script>