Shadows working, and looking totaly not shit.

Improved location of the shadowmap to always be infront of the camera.

src/Shaders/FinalPass.frag.glsl

@@ -21,7 +21,7 @@ void main()
 	vec4 LightingTexel = texture(LightingTexture, Input.TextureCoord);
 	vec4 ShadowTexel = texture(ShadowTexture, Input.TextureCoord);
 
-	//FragmentColor = LightingTexel;
+	//FragmentColor = DiffuseTexel;
 
 	FragmentColor = DiffuseTexel * (vec4(La, 0.0) + vec4(LightingTexel.rgb, 0.0)) + vec4(LightingTexel.a, LightingTexel.a, LightingTexel.a, 0.0);
 	//FragmentColor = vec4(pow(_FragmentColor.rgb, vec3(1.0 / Gamma)), _FragmentColor.a);

src/Shaders/Fragment.glsl

@@ -5,6 +5,8 @@ layout (binding=1) uniform sampler2D ShadowTexture;
 layout (binding=2) uniform sampler2D NormalMapTexture;
 layout (binding=3) uniform sampler2D SpecularMapTexture;
 
+uniform vec3 SunDirection_cameraspace;
+uniform mat4 V;
 
 in VertexData
 {
@@ -23,10 +25,20 @@ out vec4 frag_Specular;
 
 float Shadow(vec4 ShadowCoord)
 {
-	//float cosTheta = clamp(dot(Input.Normal, 1.0), 0.0, 1.0);
-	float bias = 0.0005; // cosTheta is dot( n,l ), clamped between 0 and 1
-	bias = clamp(bias, 0.0, 0.01);
-	if( texture(ShadowTexture, Input.ShadowCoord.xy).z < ShadowCoord.z - bias)
+	if (Input.ShadowCoord.x < 0.0 || Input.ShadowCoord.x > 1.0 || Input.ShadowCoord.y < 0.0 || Input.ShadowCoord.y > 1.0)
+		return 0.9;
+	
+	//Fixed bias
+	//float bias = 0.00005;
+
+	//Variable bias
+	vec3 n = normalize(Input.Normal);
+	vec3 l = normalize(SunDirection_cameraspace);
+	float cosTheta = clamp(dot(n, l), 0.0, 1.0);
+	float bias = tan(acos(cosTheta));
+	bias = clamp(bias, 0.0, 0.00005);
+
+	if( texture(ShadowTexture, Input.ShadowCoord.xy).z < ShadowCoord.z + bias)
 	{
 		return 0.6;
 	}