Added post processing pass

data/shaders/debugmarker/colorpass.frag

@@ -0,0 +1,13 @@
+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (location = 0) in vec3 inColor;
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	outFragColor.rgb = inColor;
+}

data/shaders/debugmarker/colorpass.vert

@@ -0,0 +1,28 @@
+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (location = 0) in vec4 inPos;
+layout (location = 3) in vec3 inColor;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 model;
+} ubo;
+
+layout (location = 0) out vec3 outColor;
+
+out gl_PerVertex
+{
+	vec4 gl_Position;
+};
+
+void main() 
+{
+	{
+		outColor = inColor;
+	}
+	gl_Position = ubo.projection * ubo.model * inPos;
+}

data/shaders/debugmarker/generate-spirv.bat

@@ -1,2 +1,6 @@
-glslangvalidator -V mesh.vert -o mesh.vert.spv
-glslangvalidator -V mesh.frag -o mesh.frag.spv
+glslangvalidator -V phongpass.vert -o phongpass.vert.spv
+glslangvalidator -V phongpass.frag -o phongpass.frag.spv
+glslangvalidator -V colorpass.vert -o colorpass.vert.spv
+glslangvalidator -V colorpass.frag -o colorpass.frag.spv
+glslangvalidator -V postprocess.vert -o postprocess.vert.spv
+glslangvalidator -V postprocess.frag -o postprocess.frag.spv

data/shaders/debugmarker/phongpass.frag

@@ -15,11 +15,16 @@ layout (location = 0) out vec4 outFragColor;
 
 void main() 
 {
+	// Desaturate color
+    vec3 color = vec3(mix(inColor, vec3(dot(vec3(0.2126,0.7152,0.0722), inColor)), 0.65));	
+
+	// High ambient colors because mesh materials are pretty dark
+	vec3 ambient = color * vec3(1.0);
 	vec3 N = normalize(inNormal);
 	vec3 L = normalize(inLightVec);
 	vec3 V = normalize(inViewVec);
 	vec3 R = reflect(-L, N);
-	vec3 diffuse = max(dot(N, L), 0.25) * inColor;
+	vec3 diffuse = max(dot(N, L), 0.0) * color;
 	vec3 specular = pow(max(dot(R, V), 0.0), 16.0) * vec3(0.75);
-	outFragColor = vec4(diffuse * 1.75 + specular, 1.0);		
+	outFragColor = vec4(ambient + diffuse * 1.75 + specular, 1.0);		
 }

data/shaders/debugmarker/postprocess.frag

@@ -0,0 +1,42 @@
+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (binding = 1) uniform sampler2D samplerColor;
+
+layout (location = 0) in vec2 inUV;
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	// Single pass gauss blur
+
+	const vec2 texOffset = vec2(0.01, 0.01);
+
+	vec2 tc0 = inUV + vec2(-texOffset.s, -texOffset.t);
+	vec2 tc1 = inUV + vec2(         0.0, -texOffset.t);
+	vec2 tc2 = inUV + vec2(+texOffset.s, -texOffset.t);
+	vec2 tc3 = inUV + vec2(-texOffset.s,          0.0);
+	vec2 tc4 = inUV + vec2(         0.0,          0.0);
+	vec2 tc5 = inUV + vec2(+texOffset.s,          0.0);
+	vec2 tc6 = inUV + vec2(-texOffset.s, +texOffset.t);
+	vec2 tc7 = inUV + vec2(         0.0, +texOffset.t);
+	vec2 tc8 = inUV + vec2(+texOffset.s, +texOffset.t);
+
+	vec4 col0 = texture(samplerColor, tc0);
+	vec4 col1 = texture(samplerColor, tc1);
+	vec4 col2 = texture(samplerColor, tc2);
+	vec4 col3 = texture(samplerColor, tc3);
+	vec4 col4 = texture(samplerColor, tc4);
+	vec4 col5 = texture(samplerColor, tc5);
+	vec4 col6 = texture(samplerColor, tc6);
+	vec4 col7 = texture(samplerColor, tc7);
+	vec4 col8 = texture(samplerColor, tc8);
+
+	vec4 sum = (1.0 * col0 + 2.0 * col1 + 1.0 * col2 + 
+			  2.0 * col3 + 4.0 * col4 + 2.0 * col5 +
+			  1.0 * col6 + 2.0 * col7 + 1.0 * col8) / 16.0; 
+	outFragColor = vec4(sum.rgb, 1.0);
+}

data/shaders/debugmarker/postprocess.vert

@@ -0,0 +1,17 @@
+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (location = 0) out vec2 outUV;
+
+out gl_PerVertex 
+{
+    vec4 gl_Position;   
+};
+
+void main() 
+{
+	outUV = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
+	gl_Position = vec4(outUV * vec2(2.0f, 2.0f) + vec2(-1.0f, -1.0f), 0.0f, 1.0f);
+}