Compute shader frustum culling and lod selection example (wip)

data/shaders/computecullandlod/indirectdraw.vert

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+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+// Vertex attributes
+layout (location = 0) in vec4 inPos;
+layout (location = 1) in vec3 inNormal;
+layout (location = 2) in vec2 inUV;
+layout (location = 3) in vec3 inColor;
+
+// Instanced attributes
+layout (location = 4) in vec3 instancePos;
+layout (location = 5) in vec3 instanceRot;
+layout (location = 6) in float instanceScale;
+layout (location = 7) in float instanceTexIndex;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 modelview;
+} ubo;
+
+layout (location = 0) out vec3 outNormal;
+layout (location = 1) out vec3 outColor;
+layout (location = 2) out vec3 outUV;
+layout (location = 3) out vec3 outViewVec;
+layout (location = 4) out vec3 outLightVec;
+
+out gl_PerVertex
+{
+	vec4 gl_Position;
+};
+
+void main() 
+{
+	outColor = inColor;
+	outUV = vec3(inUV, instanceTexIndex);
+	outUV.t = 1.0 - outUV.t;
+		
+	outNormal = inNormal;// * mat3(rotMat);
+	
+	vec4 pos = vec4((inPos.xyz * instanceScale) + instancePos, 1.0)/* rotMat*/;
+
+	gl_Position = ubo.projection * ubo.modelview * pos;
+	
+	vec4 wPos = ubo.modelview * vec4(pos.xyz, 1.0); 
+	vec4 lPos = vec4(0.0, 10.0, 50.0, 1.0);
+	outLightVec = lPos.xyz - pos.xyz;
+	outViewVec = -pos.xyz;	
+}