public void Update()
{
if (bDirty)
{
bDirty = false;
bNeedReselectPreview = true;
DebugTool.Log("开始更新射线模块");
rtm.clearAll();
blockManager.forEachBlock((short block, int gx, int gy, int gz) => {
if (block != (short)BlockTypeEnum.Air)
{
rtm.setBlock(gx, gy, gz, RayCastBlockType.All);
}
});
//初始化AO计算
RayMarchingAo rma = new RayMarchingAo();
rma.Init(rtm);
foreach (var obj in objects)
{
GameObject.Destroy(obj);
}
objects.Clear();
//m_meshes.Clear();
DebugTool.Log("开始计算光照");
{
//计算光照
Vector3 sunDir = new Vector3(1, -3, 1);
sunDir.Normalize();
TerrainTool.calcLight(blockManager, rtm, rays, sunDir);
}
BlockTypeFun blockTypeFun = new BlockTypeFun();
//TerrainTool.calcLight2(blockManager, 16);
DebugTool.Log("开始更新网格");
for (int i = 0; i < SpaceX; i++)
{
for (int k = 0; k < SpaceZ; k++)
{
for (int j = 0; j < SpaceY; j++)
{
BlockChunk chunk = new BlockChunk(blockManager, i * Const.ChunkSize, j * Const.ChunkSize, k * Const.ChunkSize);
for (int f = 0; f < 6; f++)
{
List <MeshTool.BlockSurface> surface = MeshTool.getChunkSurface(chunk, blockTypeFun, f);
Texture2D texSurface = MeshTool.SurfacePointsToTexture(surface, f);
Texture2D readback = null;
if (surface.Count > 0)
{
RenderTexture targetAoResult = rma.RenderByCalcShader(texSurface, new Vector3(i, j, k) * Const.ChunkSize, f);
//回读亮度数据
RenderTexture.active = targetAoResult;
readback = new Texture2D(targetAoResult.width, targetAoResult.height);
readback.ReadPixels(new Rect(0, 0, targetAoResult.width, targetAoResult.width), 0, 0);
MeshTool.SetRaytraceAo(surface, readback);
}
Mesh mesh = MeshTool.createMesh2(surface, f, blockTypeFun);
if (mesh)
{
Vector3 pos = ((new Vector3(i, j, k))) * Const.ChunkSize - halfSpaceSize;
if (mesh != null)
{
GameObject obj = new GameObject("Chunk", typeof(MeshRenderer), typeof(MeshFilter));
obj.isStatic = true;
obj.GetComponent <Renderer>().material = GlobalResources.getBlockMaterial();
obj.GetComponent <MeshFilter>().mesh = mesh;
obj.transform.position = pos;
objects.Add(obj);
}
}
}
}
}
}
DebugTool.Log("结束");
}
}
