Direction light working.

Cleaned up some code in Renderer.cpp

src/Shaders/SunPass.frag.glsl

@@ -0,0 +1,61 @@
+#version 430
+
+layout (binding=0) uniform sampler2D PositionTexture;
+layout (binding=1) uniform sampler2D NormalsTexture;
+layout (binding=2) uniform sampler2D SpecularTexture;
+
+uniform vec2 ViewportSize;
+uniform mat4 MVP;
+uniform mat4 M;
+uniform mat4 V;
+uniform mat4 P;
+uniform vec3 CameraPosition;
+uniform vec3 directionToSun;
+
+const vec3 ks = vec3(1.0, 1.0, 1.0);
+const vec3 kd = vec3(1.0, 1.0, 1.0);
+const vec3 ka = vec3(1.0, 1.0, 1.0);
+const float kshine = 1.0;
+const vec3 SunDiffuseLight = vec3(0.3, 0.3, 0.3);
+const vec3 SunSpecularLight = vec3(1.0, 1.0, 1.0);
+const vec3 SunPos = directionToSun*vec3(100);
+const float specularExponent = 5;
+
+
+in VertexData
+{
+	vec3 Position;
+	vec2 TextureCoord;
+} Input;
+
+out vec4 FragColor;
+
+vec4 phong(vec3 position, vec3 normal, vec3 specular)
+{
+	
+	//Diffuse Sunlight
+	vec3 directionToLight = normalize(vec3(V * vec4(directionToSun, 0.0)));
+	float dotProdLight = dot(directionToLight, normal);
+	dotProdLight = max(dotProdLight, 0.0);
+	vec3 sId = kd * SunDiffuseLight * dotProdLight;
+
+	//Specular Sunlight
+	vec3 surfaceToViewer = normalize(-position);
+	vec3 halfWay = normalize(surfaceToViewer + directionToLight);
+	float dotSpecular = max(dot(halfWay, normal), 0.0);
+	float specularFactorSun = pow(dotSpecular, specularExponent);
+	vec3 sIs = specular.r * SunSpecularLight * specularFactorSun;
+
+	return vec4((sId), sIs.r);
+}
+
+void main()
+{
+	vec2 TextureCoord = gl_FragCoord.xy / ViewportSize;
+	vec4 PositionTexel = texture(PositionTexture, TextureCoord);
+	vec4 NormalTexel = texture(NormalsTexture, TextureCoord);
+	vec4 SpecularTexel = texture(SpecularTexture, TextureCoord);
+
+	FragColor = phong(vec3(PositionTexel), vec3(normalize(NormalTexel)), vec3(SpecularTexel));
+	//FragColor = NormalTexel;
+}