Added Vulkan examples sources!

data/shaders/pushconstants/lights.frag

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+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+#define lightCount 6
+
+layout (location = 0) in vec3 inNormal;
+layout (location = 2) in vec3 inColor;
+
+layout (location = 3) in vec4 inLightVec[lightCount];
+
+layout (location = 0) out vec4 outFragColor;
+
+#define MAX_LIGHT_DIST 9.0 * 9.0
+
+void main() 
+{
+	vec3 lightColor[lightCount];
+	lightColor[0] = vec3(1.0, 0.0, 0.0);
+	lightColor[1] = vec3(0.0, 1.0, 0.0);
+	lightColor[2] = vec3(0.0, 0.0, 1.0);
+	lightColor[3] = vec3(1.0, 0.0, 1.0);
+	lightColor[4] = vec3(0.0, 1.0, 1.0);
+	lightColor[5] = vec3(1.0, 1.0, 0.0);
+	
+	vec3 diffuse = vec3(0.0);
+	// Just some very basic attenuation
+	for (int i = 0; i < lightCount; ++i)
+	{				
+		float lRadius =  MAX_LIGHT_DIST * inLightVec[i].w;
+	
+		float dist = min(dot(inLightVec[i], inLightVec[i]), lRadius) / lRadius;
+		float distFactor = 1.0 - dist;		
+	
+		diffuse += lightColor[i] * distFactor;		
+	}
+			
+	outFragColor.rgb = diffuse;			
+}