Simple Shading

assets/simple_shading.fragment

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+precision mediump float;
+
+uniform sampler2D Texture;
+uniform float Transparency;
+uniform vec4 LightDirection;
+
+varying vec2 texCoord;
+varying vec3 fragNormal;
+
+void main() {
+	vec4 color = texture2D(Texture, texCoord).rgba;
+	float intensity = dot(normalize(LightDirection.xyz), -normalize(fragNormal));
+	
+	gl_FragColor = vec4(color.rgb * intensity*0.5 + vec3(0.5, 0.5, 0.5), color.a * Transparency);	
+	//gl_FragColor = vec4((fragNormal.rgb + vec3(1.0, 1.0, 1.0))*0.5, 1.0);
+}