/// <summary>
/// 添加包围盒信息 查询使用
/// </summary>
/// <param name="BoundsCenter"></param>
/// <param name="BoundsExtent"></param>
/// <returns></returns>
public int AddBounds(Vector4 BoundsCenter, Vector4 BoundsExtent)
{
if (Primitives == null)
{
Primitives = new List <UGOcclusionPrimitive>();
}
UGOcclusionPrimitive primitive = new UGOcclusionPrimitive()
{
Center = BoundsCenter, Extent = BoundsExtent
};
Primitives.Add(primitive);
return(Primitives.Count);
}
public void Sumit()
{
BoundsCenterTexture = new Texture2D(SizeX, SizeY);
BoundsExtentTexture = new Texture2D(SizeX, SizeY);
const int BlockSize = 8;
const int SizeInBlocksX = SizeX / BlockSize; //32
const int SizeInBlocksY = SizeY / BlockSize; //32
const int BlockStride = BlockSize * 4 * sizeof(float);
Color[] CenterBuffer = new Color[BlockSize * BlockSize];
Color[] ExtentBuffer = new Color[BlockSize * BlockSize];
int NumPrimitives = Primitives.Count;
for (int i = 0; i < NumPrimitives; i += BlockSize * BlockSize)//+=64
{
//NumPrimitives >64 为64 否则为NumPrimitives-i BlockEnd<=64
int BlockEnd = Mathf.Min(BlockSize * BlockSize, NumPrimitives - i);
for (int b = 0; b < BlockEnd; b++)
{
UGOcclusionPrimitive primitive = Primitives[i + b];
CenterBuffer[b].r = primitive.Center.x;
CenterBuffer[b].g = primitive.Center.y;
CenterBuffer[b].b = primitive.Center.z;
CenterBuffer[b].a = 0.0f;
ExtentBuffer[b].r = primitive.Extent.x;
ExtentBuffer[b].g = primitive.Extent.y;
ExtentBuffer[b].b = primitive.Extent.z;
ExtentBuffer[b].a = 1.0f;
//清除 剩下的Block
if (BlockEnd < BlockSize * BlockSize)
{
}
}
int BlockIndex = i / (BlockSize * BlockSize);
int BlockX = BlockIndex % SizeInBlocksX;
int BlockY = BlockIndex / SizeInBlocksY;
//创建两张纹理数据
BoundsCenterTexture.SetPixels(BlockX, BlockY, BlockSize, BlockSize, CenterBuffer);
BoundsExtentTexture.SetPixels(BlockX, BlockY, BlockSize, BlockSize, ExtentBuffer);
}
}
