public override void Prepare(GameObject model)
{
// OC camera and rendertexture
octex = new RenderTexture(OC_RESOLUTION, OC_RESOLUTION, 16, RenderTextureFormat.ARGB32);
octex.enableRandomWrite = true;
octex.Create();
occam = new GameObject("OC CAM").AddComponent <Camera>();
occam.targetTexture = octex;
occam.enabled = false;
// Collect the mesh and attribute buffers
List <Mesh> meshes = new List <Mesh>();
List <OtherAttrs> otherattrs = new List <OtherAttrs>();
foreach (var r in model.GetComponentsInChildren <Renderer>())
{
MeshFilter mf = r.GetComponent <MeshFilter>();
meshes.Add(mf.sharedMesh);
otherattrs.Add(new OtherAttrs()
{
matrix = r.transform.localToWorldMatrix,
color = r.sharedMaterial.color
});
}
// Triangle buffers
ImportStructuredBufferMesh.ImportAllAndUnpack(meshes.ToArray(), ref attrbuff);
otherbuff = new ComputeBuffer(otherattrs.Count, Marshal.SizeOf(typeof(OtherAttrs)), ComputeBufferType.Default);
otherbuff.SetData(otherattrs.ToArray());
// Compute Shader Buffers
idaccum = new ComputeBuffer(attrbuff.count / 3, Marshal.SizeOf(typeof(bool)));
triappend = new ComputeBuffer(MAX_TRIANGLES, Marshal.SizeOf(typeof(uint)), ComputeBufferType.Append);
// Compute Shader & Buffers
compute = Resources.Load <ComputeShader>("Shaders/compute/countTris");
compute.SetBuffer(ACCUM_KERNEL, "_idaccum", idaccum);
compute.SetTexture(ACCUM_KERNEL, "_idTex", octex);
compute.SetBuffer(MAP_KERNEL, "_idaccum", idaccum);
compute.SetBuffer(MAP_KERNEL, "_triappend", triappend);
// Material
mat = new Material(Shader.Find("Indirect Shader Single Call"));
mat.SetBuffer("other", otherbuff);
mat.SetBuffer("points", attrbuff);
mat.SetBuffer("triappend", triappend);
idmat = new Material(Shader.Find("Indirect Shader Single Call Ids"));
idmat.SetBuffer("other", otherbuff);
idmat.SetBuffer("points", attrbuff);
}
protected override void GetBuffers(Mesh mesh, ref ComputeBuffer idxbuff, ref ComputeBuffer attrbuff, ref int count)
{
idxbuff = null;
ImportStructuredBufferMesh.ImportAndUnpack(mesh, ref attrbuff);
count = attrbuff.count;
}
protected virtual void GetBuffers(Mesh mesh, ref ComputeBuffer idxbuff, ref ComputeBuffer attrbuff, ref int count)
{
ImportStructuredBufferMesh.Import(mesh, ref idxbuff, ref attrbuff);
count = idxbuff.count;
}
