protected override void Init()
{
base.Init();
if (mesh == null)
{
mesh = GetComponent <MeshFilter>().sharedMesh;
}
var texes = MeshInfoTexture.GeneratePositionNormalTexture(mesh, setting.texWidth, setting.texHeight);
positionInfoTex = texes[0];
normalInfoTex = texes[1];
}
// Use this for initialization
void Start()
{
if (mesh == null && GetComponent <MeshFilter>() != null)
{
mesh = GetComponent <MeshFilter>().sharedMesh;
}
if (mesh == null && GetComponent <SkinnedMeshRenderer>() != null)
{
mesh = GetComponent <SkinnedMeshRenderer>().sharedMesh;
}
var rts = MeshInfoTexture.GeneratePositionNormalTexture(mesh, texSize, texSize);
var positionTex = RenderTextureToTexture2D.Convert(rts[0]);
var normalTex = RenderTextureToTexture2D.Convert(rts[1]);
Texture colorTex = null;
if (originColTex != null)
{
colorTex = MeshInfoTexture.ConvertTextureUV(originColTex, mesh, texSize, texSize);
}
var uvBuffer = new ComputeBuffer(
texSize * texSize,
SizeOf(typeof(Vector2)),
ComputeBufferType.Append);
var uvCounter = new ComputeBuffer(
1,
SizeOf(typeof(int)),
ComputeBufferType.IndirectArguments);
uvBuffer.SetCounterValue(0);
var kernel = sampler.FindKernel("sampleOpaqueTexel");
sampler.SetInt("TexSize", texSize);
sampler.SetTexture(kernel, "Tex", positionTex);
sampler.SetBuffer(kernel, "OpaqueUv", uvBuffer);
sampler.Dispatch(kernel, texSize / 8, texSize / 8, 1);
var count = new[] { 0 };
uvCounter.SetData(count);
ComputeBuffer.CopyCount(uvBuffer, uvCounter, 0);
uvCounter.GetData(count);
var numUvs = count[0];
Debug.Log(numUvs);
var width = texSize / 2;
var height = Mathf.NextPowerOfTwo(numUvs / width);
var rt = new RenderTexture(width, height, 0, RenderTextureFormat.ARGBFloat);
rt.enableRandomWrite = true;
rt.Create();
RenderTexture.active = rt;
GL.Clear(true, true, Color.clear);
kernel = sampler.FindKernel("buildUvTex");
sampler.SetInt("TexSize", width);
sampler.SetInt("NumUvs", numUvs);
sampler.SetBuffer(kernel, "UvPool", uvBuffer);
sampler.SetTexture(kernel, "Output", rt);
sampler.Dispatch(kernel, width / 8, height / 8, 1);
uvBuffer.Release();
uvCounter.Release();
var uvTex = RenderTextureToTexture2D.Convert(rt);
positionTex.filterMode = normalTex.filterMode = colorTex.filterMode = uvTex.filterMode = FilterMode.Point;
positionTex.wrapMode = normalTex.wrapMode = colorTex.wrapMode = uvTex.wrapMode = TextureWrapMode.Clamp;
rt.Release();
rts[0].Release();
rts[1].Release();
#if UNITY_EDITOR
if (!AssetDatabase.IsValidFolder(assetFolderPath))
{
AssetDatabase.CreateFolder("Assets", assetFolderName);
}
AssetDatabase.CreateAsset(positionTex, string.Format("{0}/{1}_pos.asset", assetFolderPath, mesh.name));
AssetDatabase.CreateAsset(normalTex, string.Format("{0}/{1}_norm.asset", assetFolderPath, mesh.name));
if (colorTex != null)
{
AssetDatabase.CreateAsset(colorTex, string.Format("{0}/{1}_col.asset", assetFolderPath, mesh.name));
}
AssetDatabase.CreateAsset(uvTex, string.Format("{0}/{1}_uv.asset", assetFolderPath, mesh.name));
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
#endif
}
