Redo of render paths

res/shaders/ComputeFrustums.slang

@@ -0,0 +1,59 @@
+
+import LightEnv;
+import Common;
+
+struct ComputeShaderInput
+{
+	uint3 groupID : SV_GroupID;
+	uint3 groupThreadID : SV_GroupThreadID;
+	uint3 dispatchThreadID : SV_DispatchThreadID;
+	uint groupIndex : SV_GroupIndex;
+};
+
+layout(set = 0, binding = 0)
+cbuffer DispatchParams
+{
+	uint3 numThreadGroups;
+	uint pad0;
+	uint3 numThreads;
+	uint pad1;
+}
+layout(set = 0, binding = 2)
+RWStructuredBuffer<Frustum> out_Frustums;
+
+
+[numthreads(BLOCK_SIZE, BLOCK_SIZE, 1)]
+[shader("compute")]
+void computeFrustums(ComputeShaderInput in)
+{
+	const float3 eyePos = float3(0,0,0);
+
+	float4 screenSpace[4];
+
+	screenSpace[0] = float4(in.dispatchThreadID.xy * BLOCK_SIZE, 1.0f, 1.0f);
+	screenSpace[1] = float4(float2(in.dispatchThreadID.x + 1, in.dispatchThreadID.y) * BLOCK_SIZE, 1.0f, 1.0f);
+	screenSpace[2] = float4(float2(in.dispatchThreadID.x, in.dispatchThreadID.y + 1) * BLOCK_SIZE, 1.0f, 1.0f);
+	screenSpace[3] = float4(float2(in.dispatchThreadID.x + 1, in.dispatchThreadID.y + 1) * BLOCK_SIZE, 1.0f, 1.0f);
+	
+	//Convert to viewSpace
+	float3 viewSpace[4];
+	
+	for(int i = 0; i < 4; i++)
+	{
+		viewSpace[i] = screenToView(screenSpace[i]).xyz;
+	}
+
+	//Compute frustum
+	Frustum frustum;
+
+	frustum.planes[0] = computePlane(eyePos, viewSpace[0], viewSpace[2]);
+	frustum.planes[1] = computePlane(eyePos, viewSpace[3], viewSpace[1]);
+	frustum.planes[2] = computePlane(eyePos, viewSpace[1], viewSpace[0]);
+	frustum.planes[3] = computePlane(eyePos, viewSpace[2], viewSpace[3]);
+
+	if(in.dispatchThreadID.x < numThreads.x && in.dispatchThreadID.y < numThreads.y)
+	{
+		uint index = in.dispatchThreadID.x + (in.dispatchThreadID.y * numThreads.x);
+		out_Frustums[index] = frustum;
+	}
+}