private static void CalculateCubemapMatrix(float3 position, float farClipPlane, float nearClipPlane, out NativeList <float4x4> viewMatrices, out NativeList <float4x4> projMatrices)
{
viewMatrices = new NativeList <float4x4>(6, 6, Allocator.Temp);
projMatrices = new NativeList <float4x4>(6, 6, Allocator.Temp);
PerspCam cam = new PerspCam();
cam.aspect = 1;
cam.farClipPlane = farClipPlane;
cam.nearClipPlane = nearClipPlane;
cam.position = position;
cam.fov = 90f;
//Forward
cam.right = float3(1, 0, 0);
cam.up = float3(0, 1, 0);
cam.forward = float3(0, 0, 1);
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
for (int i = 0; i < 6; ++i)
{
projMatrices[i] = cam.projectionMatrix;
}
viewMatrices[5] = cam.worldToCameraMatrix;
//Back
cam.right = float3(-1, 0, 0);
cam.up = float3(0, 1, 0);
cam.forward = float3(0, 0, -1);
cam.UpdateTRSMatrix();
viewMatrices[4] = cam.worldToCameraMatrix;
//Up
cam.right = float3(-1, 0, 0);
cam.up = float3(0, 0, 1);
cam.forward = float3(0, 1, 0);
cam.UpdateTRSMatrix();
viewMatrices[3] = cam.worldToCameraMatrix;
//Down
cam.right = float3(-1, 0, 0);
cam.up = float3(0, 0, -1);
cam.forward = float3(0, -1, 0);
cam.UpdateTRSMatrix();
viewMatrices[2] = cam.worldToCameraMatrix;
//Right
cam.up = float3(0, 1, 0);
cam.right = float3(0, 0, -1);
cam.forward = float3(1, 0, 0);
cam.UpdateTRSMatrix();
viewMatrices[1] = cam.worldToCameraMatrix;
//Left
cam.up = float3(0, 1, 0);
cam.right = float3(0, 0, 1);
cam.forward = float3(-1, 0, 0);
cam.UpdateTRSMatrix();
viewMatrices[0] = cam.worldToCameraMatrix;
}
private void BakeCubemap()
{
PerspCam persp = new PerspCam();
persp.aspect = 1;
persp.farClipPlane = considerRange;
persp.nearClipPlane = 0.1f;
persp.fov = 90f;
NativeList <float4x4> worldToCameras = new NativeList <float4x4>(6, 6, Allocator.TempJob);
NativeList <float4x4> projection = new NativeList <float4x4>(6, 6, Allocator.TempJob);
GetMatrix(worldToCameras.unsafePtr, ref persp, transform.position);
persp.UpdateProjectionMatrix();
for (int i = 0; i < 6; ++i)
{
projection[i] = persp.projectionMatrix;
}
RenderTexture rt = new RenderTexture(new RenderTextureDescriptor
{
autoGenerateMips = false,
bindMS = false,
colorFormat = RenderTextureFormat.ARGBHalf,
depthBufferBits = 16,
dimension = TextureDimension.Tex2DArray,
enableRandomWrite = false,
height = 128,
width = 128,
volumeDepth = 6,
msaaSamples = 1,
useMipMap = true
});
rt.filterMode = FilterMode.Trilinear;
rt.Create();
RenderTexture tempRT = new RenderTexture(new RenderTextureDescriptor
{
autoGenerateMips = false,
bindMS = false,
colorFormat = RenderTextureFormat.ARGBHalf,
depthBufferBits = 16,
dimension = TextureDimension.Tex2D,
enableRandomWrite = false,
height = 128,
width = 128,
volumeDepth = 1,
msaaSamples = 1
});
cbuffer.Clear();
cbuffer.SetGlobalTexture("_Cubemap", rt);
cbuffer.GenerateMips(rt);
RenderPipeline.AddRenderingMissionInEditor(worldToCameras, projection, targetCamera, rt, tempRT, cbuffer);
}
private void BakeMap(int3 index, RenderTexture texArray, RenderTexture tempTex)
{
float3 left = transform.position - transform.lossyScale * 0.5f;
float3 right = transform.position + transform.lossyScale * 0.5f;
float3 position = lerp(left, right, ((float3)index + 0.5f) / probeCount);
PerspCam persp = new PerspCam();
persp.aspect = 1;
persp.farClipPlane = considerRange;
persp.nearClipPlane = 0.1f;
persp.fov = 90f;
NativeList <float4x4> worldToCameras = new NativeList <float4x4>(6, 6, Allocator.TempJob);
NativeList <float4x4> projection = new NativeList <float4x4>(6, 6, Allocator.TempJob);
GetMatrix(worldToCameras.unsafePtr, ref persp, position);
persp.UpdateProjectionMatrix();
for (int i = 0; i < 6; ++i)
{
projection[i] = persp.projectionMatrix;
}
RenderPipeline.AddRenderingMissionInEditor(worldToCameras, projection, targetCamera, texArray, tempTex, cbuffer);
}
public override void DrawCubeMap(MPointLight lit, ref RenderClusterOptions opts, ref CubeCullingBuffer buffer, int offset)
{
CommandBuffer cb = opts.command;
ComputeShader shader = opts.cullingShader;
Material depthMaterial = opts.proceduralMaterial;
cb.SetComputeIntParam(shader, ShaderIDs._LightOffset, offset);
ComputeShaderUtility.Dispatch(shader, cb, CubeFunction.RunFrustumCull, baseBuffer.clusterCount, 256);
PerspCam cam = new PerspCam();
cam.aspect = 1;
cam.farClipPlane = lit.range;
cam.nearClipPlane = 0.3f;
cam.position = lit.position;
cam.fov = 90f;
Matrix4x4 vpMatrix;
cb.SetGlobalVector(ShaderIDs._LightPos, new Vector4(lit.position.x, lit.position.y, lit.position.z, lit.range));
cb.SetGlobalBuffer(ShaderIDs.verticesBuffer, baseBuffer.verticesBuffer);
cb.SetGlobalBuffer(ShaderIDs.resultBuffer, baseBuffer.resultBuffer);
//Forward
cam.forward = Vector3.forward;
cam.up = Vector3.down;
cam.right = Vector3.left;
cam.position = lit.position;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.NegativeZ);
cb.ClearRenderTarget(true, true, Color.white);
cb.SetGlobalMatrix(ShaderIDs._VP, vpMatrix);
offset = offset * 20;
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset);
//Back
cam.forward = Vector3.back;
cam.up = Vector3.down;
cam.right = Vector3.right;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.PositiveZ);
cb.ClearRenderTarget(true, true, Color.white);
cb.SetGlobalMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset);
//Up
cam.forward = Vector3.up;
cam.up = Vector3.back;
cam.right = Vector3.right;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.PositiveY);
cb.ClearRenderTarget(true, true, Color.white);
cb.SetGlobalMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset);
//Down
cam.forward = Vector3.down;
cam.up = Vector3.forward;
cam.right = Vector3.right;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.NegativeY);
cb.ClearRenderTarget(true, true, Color.white);
cb.SetGlobalMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset);
//Right
cam.forward = Vector3.right;
cam.up = Vector3.down;
cam.right = Vector3.forward;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.PositiveX);
cb.ClearRenderTarget(true, true, Color.white);
cb.SetGlobalMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset);
//Left
cam.forward = Vector3.left;
cam.up = Vector3.down;
cam.right = Vector3.back;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.NegativeX);
cb.ClearRenderTarget(true, true, Color.white);
cb.SetGlobalMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset);
}
public static void DrawShadow(MPointLight lit, CommandBuffer cb, MaterialPropertyBlock block, ref CubeCullingBuffer buffer, ref PipelineBaseBuffer baseBuffer, ComputeShader shader, int offset, Material depthMaterial)
{
cb.SetComputeIntParam(shader, ShaderIDs._LightOffset, offset);
ComputeShaderUtility.Dispatch(shader, cb, RunFrustumCull, baseBuffer.clusterCount, 64);
PerspCam cam = new PerspCam();
cam.aspect = 1;
cam.farClipPlane = lit.range;
cam.nearClipPlane = 0.3f;
cam.position = lit.position;
cam.fov = 90f;
Matrix4x4 vpMatrix;
block.SetVector(ShaderIDs._LightPos, new Vector4(lit.position.x, lit.position.y, lit.position.z, lit.range));
PipelineFunctions.SetShaderBuffer(ref baseBuffer, block);
//Forward
cam.forward = Vector3.forward;
cam.up = Vector3.down;
cam.right = Vector3.left;
cam.position = lit.position;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.NegativeZ);
cb.ClearRenderTarget(true, true, Color.white);
block.SetMatrix(ShaderIDs._VP, vpMatrix);
offset = offset * 20;
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset, block);
//Back
cam.forward = Vector3.back;
cam.up = Vector3.down;
cam.right = Vector3.right;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.PositiveZ);
cb.ClearRenderTarget(true, true, Color.white);
block.SetMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset, block);
//Up
cam.forward = Vector3.up;
cam.up = Vector3.back;
cam.right = Vector3.right;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.PositiveY);
cb.ClearRenderTarget(true, true, Color.white);
block.SetMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset, block);
//Down
cam.forward = Vector3.down;
cam.up = Vector3.forward;
cam.right = Vector3.right;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.NegativeY);
cb.ClearRenderTarget(true, true, Color.white);
block.SetMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset, block);
//Right
cam.forward = Vector3.right;
cam.up = Vector3.down;
cam.right = Vector3.forward;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.PositiveX);
cb.ClearRenderTarget(true, true, Color.white);
block.SetMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset, block);
//Left
cam.forward = Vector3.left;
cam.up = Vector3.down;
cam.right = Vector3.back;
cam.UpdateTRSMatrix();
cam.UpdateProjectionMatrix();
vpMatrix = GL.GetGPUProjectionMatrix(cam.projectionMatrix, true) * cam.worldToCameraMatrix;
cb.SetRenderTarget(lit.shadowmapTexture, 0, CubemapFace.NegativeX);
cb.ClearRenderTarget(true, true, Color.white);
block.SetMatrix(ShaderIDs._VP, vpMatrix);
cb.DrawProceduralIndirect(Matrix4x4.identity, depthMaterial, 0, MeshTopology.Triangles, buffer.indirectDrawBuffer, offset, block);
}
