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Added GPU SoftBody constraint solvers for DirectX 11 (Direct Compute) and OpenCL, thanks to AMD.

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See also http://code.google.com/p/bullet/issues/detail?id=390
Added Demos/DX11ClothDemo
(an OpenCL cloth demo will follow soon)
This commit is contained in:
erwin.coumans
2010-07-20 16:09:53 +00:00
parent 5fd08505ba
commit 11fa2e8b43
99 changed files with 117195 additions and 0 deletions
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35
src/BulletMultiThreaded/GpuSoftBodySolvers/OpenCL/OpenCLC/Integrate.cl Normal file
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MSTRINGIFY(
// Node indices for each link
//#define float3 float4
__kernel void
IntegrateKernel(
const int numNodes,
const float solverdt,
__global float * g_vertexInverseMasses,
__global float4 * g_vertexPositions,
__global float4 * g_vertexVelocity,
__global float4 * g_vertexPreviousPositions,
__global float4 * g_vertexForceAccumulator)
{
int nodeID = get_global_id(0);
if( nodeID < numNodes )
{
float3 position = g_vertexPositions[nodeID].xyz;
float3 velocity = g_vertexVelocity[nodeID].xyz;
float3 force = g_vertexForceAccumulator[nodeID].xyz;
float inverseMass = g_vertexInverseMasses[nodeID];
g_vertexPreviousPositions[nodeID] = (float4)(position, 0.f);
velocity += force * inverseMass * solverdt;
position += velocity * solverdt;
g_vertexForceAccumulator[nodeID] = (float4)(0.f, 0.f, 0.f, 0.0f);
g_vertexPositions[nodeID] = (float4)(position, 0.f);
g_vertexVelocity[nodeID] = (float4)(velocity, 0.f);
}
}
);