void InitBoidCS()
{
calCenterKernelHandle = boidCS.FindKernel("CalCenterCS");
buildGridKernelHandle = boidCS.FindKernel("BuildGridCS");
clearGridIndicesKernelHandle = boidCS.FindKernel("ClearGridIndicesCS");
buildGridIndicesKernelHandle = boidCS.FindKernel("BuildGridIndicesCS");
rearrangeParticlesKernelHandle = boidCS.FindKernel("RearrangeParticlesCS");
boidsGridKernelHandle = boidCS.FindKernel("BoidsCS_Grid");
cbBoid[0] = new ComputeBuffer(boidsCount, 32);
cbBoid [1] = new ComputeBuffer(boidsCount, 32);
cbGrid = new ComputeBuffer(boidsCount, 8);
//cbGridIndices = new ComputeBuffer(1<<24, 4);//xyz分别分配8位
//start&end int2啊！艹！
cbGridIndices = new ComputeBuffer(1 << 24, 8);
cbBoidsCenter = new ComputeBuffer(1, 12);
//just for initialization,cpu to gpu
GPUBoid[] boidsData = new GPUBoid[boidsCount];
for (int i = 0; i < boidsCount; i++)
{
boidsData[i] = CreateBoidData();
}
cbBoid[0].SetData(boidsData);
boidCS.SetInt("gBoidsCount", boidsCount);
boidCS.SetFloat("gNearByDist", nearbyDis);
}
void Start()
{
kernelHandle = cshader.FindKernel("CSMain");
//int stride = sizeof(GPUBoid);
//int stride=sizeof(Vector3)*2+sizeof(float)*2;
int stride = 32;
cbuffer = new ComputeBuffer(boidsCount, stride);
boidsGo = new GameObject[boidsCount];
//just for initialization,cpu to gpu
GPUBoid[] boidsData = new GPUBoid[boidsCount];
for (int i = 0; i < boidsCount; i++)
{
boidsData[i] = CreateBoidData();
boidsGo[i] = Instantiate(boidPrefab, boidsData[i].pos, Quaternion.Slerp(transform.rotation, Random.rotation, 0.3f)) as GameObject;
boidsData[i].rot = boidsGo[i].transform.forward;
Material mtrl = boidsGo[i].GetComponent <Renderer>().material;
//mtrl.SetPass(0);
mtrl.SetInt("_boidID", i);
mtrl.SetBuffer("_boidBuffer", cbuffer);
}
cbuffer.SetData(boidsData);
cshader.SetBuffer(kernelHandle, "gBoidBuffer", cbuffer);
cshader.SetInt("gBoidsCount", boidsCount);
cshader.SetFloat("gNearByDist", nearbyDis);
}
GPUBoid CreateBoidData()
{
GPUBoid boidData = new GPUBoid();
Vector3 pos = transform.position + Random.insideUnitSphere * spawnRadius;
boidData.pos = pos;
boidData.rot = new Vector3(0f, 0f, 1f);
boidData.speed = flockSpeed + Random.Range(-0.5f, 0.5f);
boidData.rotSpeed = flockRotSpeed + Random.Range(-0.5f, 0.5f);
return(boidData);
}
GPUBoid CreateBoidData()
{
GPUBoid boidData = new GPUBoid();
Vector3 pos = transform.position + Random.insideUnitSphere * SpawnRadius;
Quaternion rot = Quaternion.Slerp(transform.rotation, Random.rotation, 0.3f);
boidData.position = pos;
boidData.direction = rot.eulerAngles;
boidData.noise_offset = Random.value * 1000.0f;
boidData.size = Random.Range(0.5f, 1.5f);
return(boidData);
}
GPUBoid CreateBoidData()
{
GPUBoid boidData = new GPUBoid();
Vector3 pos = transform.position + Random.insideUnitSphere * spawnRadius;
Quaternion rot = Quaternion.Slerp(transform.rotation, Random.rotation, 0.3f);
boidData.pos = pos;
boidData.flockPos = transform.position;
boidData.boidsCount = this.boidsCount;
boidData.nearbyDis = this.nearbyDis;
boidData.speed = this.flockSpeed + Random.Range(-0.5f, 0.5f);
return(boidData);
}
void Start()
{
kernelHandle = cshader.FindKernel("CSMain");
int stride = 32;
cbuffer = new ComputeBuffer(boidsCount, stride);
//just for initialization,cpu to gpu
GPUBoid[] boidsData = new GPUBoid[boidsCount];
for (int i = 0; i < boidsCount; i++)
{
boidsData[i] = CreateBoidData();
}
cbuffer.SetData(boidsData);
cshader.SetBuffer(kernelHandle, "gBoidBuffer", cbuffer);
cshader.SetInt("gBoidsCount", boidsCount);
cshader.SetFloat("gNearByDist", nearbyDis);
}
