private static void CombineTex()
{
Rect wr = new Rect(0, 0, 800, 800);
TextureCombine window = (TextureCombine)EditorWindow.GetWindowWithRect(typeof(TextureCombine), wr, true, "合并贴图");
window.Show();
}
void Apply()
{
GetComponent <MeshRenderer>().enabled = hlodShowing;
tc = new TextureCombine();
realItems = new List <Renderer>();
// List<Vector4> uvs=new List<Vector4>();
// testRender.GetComponent<MeshFilter>().sharedMesh.GetUVs(0,uvs);
// foreach (var uv in uvs)
// {
// print(uv);
// }
// return;
//filter object
Stopwatch sw = new Stopwatch();
sw.Start();
List <MeshFilter> meshFilters = new List <MeshFilter>();
foreach (var meshf in FindObjectsOfType <MeshFilter>())
{
if ("Plane" == meshf.name || meshf.transform == transform)
{
continue;
}
var mr = meshf.GetComponent <Renderer>();
if (mr == null)
{
continue;
}
if (Physics.CheckSphere(meshf.transform.position, 0.01f, LayerMask.GetMask("Water")))
{
//meshf.gameObject.SetActive(false);
//mr.enabled = false;
meshFilters.Add(meshf);
realItems.Add(mr);
foreach (var mat in
mr.sharedMaterials)
{
tc.addTexture(mat.mainTexture as Texture2D);
}
}
}
tc.combineAllTextures(4, out TestRenderTexture);
sw.Stop();
print(sw.ElapsedMilliseconds);
sw.Reset();
sw.Start();
Material[] mats = null;
List <Vector3> vertexList = new List <Vector3>();
List <Vector3> normalList = new List <Vector3>();
List <Color> colorList = new List <Color>();
// List<Vector4> tangentList=new List<Vector4>();
List <int> trangleList = new List <int>();
List <Vector2> uv0List = new List <Vector2>();
List <Vector4> uv1List = new List <Vector4>();
foreach (var meshf in meshFilters)
{
int triCount = meshf.sharedMesh.triangles.Length;
for (int i = 0; i < triCount; i++)
{
trangleList.Add(vertexList.Count + meshf.sharedMesh.triangles[i]);
}
for (int i = 0; i < meshf.sharedMesh.vertexCount; i++)
{
vertexList.Add(transform.worldToLocalMatrix.MultiplyPoint(meshf.transform.localToWorldMatrix.MultiplyPoint(meshf.sharedMesh.vertices[i])));
}
uv0List.AddRange(meshf.sharedMesh.uv);
normalList.AddRange(meshf.sharedMesh.normals);
//tangentList.AddRange(meshf.sharedMesh.tangents);
Vector4[] submeshUv = new Vector4[meshf.sharedMesh.vertexCount];
Color[] submeshColor = new Color[meshf.sharedMesh.vertexCount];
for (int i = 0; i < meshf.sharedMesh.subMeshCount; i++)
{
int [] triList = meshf.sharedMesh.GetTriangles(i);
var uvInHLod = tc.getUvSet(meshf.GetComponent <Renderer>().sharedMaterials[i].mainTexture as Texture2D);
var color = meshf.GetComponent <Renderer>().sharedMaterials[i].color;
if (uvInHLod.z * uvInHLod.w == 0)
{
continue;
}
// Debug.Log(uvInHLod.x);
for (int j = 0; j < triList.Length; j++)
{
int uvIndex = triList[j];
submeshUv[uvIndex] = uvInHLod;
submeshColor[uvIndex] = color;
}
}
uv1List.AddRange(submeshUv);
colorList.AddRange(submeshColor);
}
Mesh mesh = new Mesh();
mesh.SetVertices(vertexList);
mesh.SetTriangles(trangleList, 0);
mesh.uv = uv0List.ToArray();
// mesh.SetTangents( tangentList);
mesh.SetNormals(normalList);
mesh.SetColors(colorList);
//mesh.RecalculateTangents();
//mesh.RecalculateNormals();
mesh.SetUVs(1, uv1List);
//mesh.UploadMeshData(true);
GetComponent <MeshFilter>().sharedMesh = mesh;
sw.Stop();
print(sw.ElapsedMilliseconds);
GetComponent <Renderer>().material.shader = Shader.Find("Custom/HLodPbr");
GetComponent <Renderer>().material.mainTexture = TestRenderTexture;
}