void Init(GameObject obj, BakeDepthParam param)
{
m_param = param;
m_horizon_height = obj.transform.position.y;
Mesh mesh = obj.GetComponent <MeshFilter>().sharedMesh;
const float unit_size = 10;
m_step_arr = new int[mesh.vertexCount];
m_width = (int)(unit_size * obj.transform.lossyScale.x / m_param.UnitSize) + 1;
m_height = (int)(unit_size * obj.transform.lossyScale.z / m_param.UnitSize) + 1;
//m_quad_tree_width = Mathf.NextPowerOfTwo(m_width);
m_vertiecs = mesh.vertices;
m_indices = new List <int>();
m_quad_gen_list = new List <KeyValuePair <int, int> >();
m_uvs = mesh.uv;
m_colors = mesh.colors;
Debug.Log("[OptimizeMesh-Enter] vertex count : " + m_vertiecs.Length.ToString()
+ " uv count : " + m_uvs.Length.ToString()
+ " color count : " + m_colors.Length.ToString());
//辅助结构
m_max_step = Mathf.ClosestPowerOfTwo(m_param.MaxQuadWidth);
m_list_quad_tree_max_step = new int[mesh.vertexCount];
m_list_vertex_state = new VertexState[mesh.vertexCount];
m_quad_size_loop = new int[m_max_step];
for (int i = 0; i < m_max_step; ++i)
{
m_quad_size_loop[i] = CalQuadMaxStep(i);
}
}
public List <PatchInfo> DividePatch(GameObject plane, BakeDepthParam param, Mesh mesh)
{
//根据plane的大小划分成多个不同的网格，这里要通过参数设置保证plane的大小是设置的Patch的整数倍
// 1单位的Scale 为 10，
Vector2 total_size = new Vector2(0f, 0f);
total_size.x = plane.transform.lossyScale.x * CommonData.UnitSize;
total_size.y = plane.transform.lossyScale.z * CommonData.UnitSize;
Vector2 unit_size = new Vector2(param.Size.x * param.UnitSize, param.Size.y * param.UnitSize);
Vector2Int total_num = new Vector2Int(Mathf.CeilToInt(total_size.x / unit_size.x), Mathf.CeilToInt(total_size.y / unit_size.y));
List <PatchInfo> meshes = new List <PatchInfo>();
//根据原有位置和目标的圆心位置，得到一个中心平移的向量
Vector3 mesh_first_vertex_pos = new Vector3(unit_size.x / 2, 0, unit_size.y / 2) - new Vector3(total_size.x / 2, 0, total_size.y / 2);
Vector2Int patch_vertex_size = new Vector2Int(param.Size.x, param.Size.y);
Vector2Int total_vertex_size = new Vector2Int(Mathf.CeilToInt(total_size.x / param.UnitSize) + 1, Mathf.CeilToInt(total_size.y / param.UnitSize) + 1);
for (int i = 0; i < total_num.x; ++i)
{
for (int j = 0; j < total_num.y; ++j)
{
//需要中心对称
Vector2Int offset_index = new Vector2Int(i, j);
meshes.Add(GenPatchInfo(offset_index, unit_size, plane, mesh_first_vertex_pos, patch_vertex_size, total_vertex_size, mesh));
}
}
Debug.Log("[Divide Sub Mesh] lossyscale : " + plane.transform.lossyScale.ToString()
+ ", total size : " + total_size.ToString()
+ ", unit size : " + unit_size.ToString()
+ ", total num : " + total_num.ToString());
Debug.Log("[GenMeshUtil] Divide Mesh Done");
return(meshes);
}
public void OptimizeMesh(GameObject obj, BakeDepthParam param)
{
//初始化
Init(obj, param);
//合并格子
CombineQuad();
//压缩顶点
CompressMesh();
//把计算后的值更新给obj
UpdateMesh(obj);
Debug.Log("OptimizeMeshUtil Done");
}