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Viewing changes to tests/bullet/src/BulletMultiThreaded/GpuSoftBodySolvers/OpenCL/OpenCLC10/UpdatePositions.cl

  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2013-05-02 13:11:51 UTC
  • Revision ID: package-import@ubuntu.com-20130502131151-q8dvteqr1ef2x7xz
Tags: upstream-1.4.1~20130504~adb56cb
Import upstream version 1.4.1~20130504~adb56cb

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tests/bullet/src/BulletMultiThreaded/GpuSoftBodySolvers/OpenCL/OpenCLC10/UpdatePositions.cl
 
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MSTRINGIFY(
 
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__kernel void 
 
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updateVelocitiesFromPositionsWithoutVelocitiesKernel( 
 
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        const int numNodes,
 
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        const float isolverdt,
 
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        __global float4 * g_vertexPositions,
 
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        __global float4 * g_vertexPreviousPositions,
 
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        __global int * g_vertexClothIndices,
 
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        __global float * g_clothDampingFactor,
 
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        __global float4 * g_vertexVelocities,
 
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        __global float4 * g_vertexForces GUID_ARG)
 
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{
 
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        int nodeID = get_global_id(0);
 
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        if( nodeID < numNodes )
 
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        {       
 
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                float4 position = g_vertexPositions[nodeID];
 
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                float4 previousPosition = g_vertexPreviousPositions[nodeID];
 
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                float4 velocity = g_vertexVelocities[nodeID];
 
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                int clothIndex = g_vertexClothIndices[nodeID];
 
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                float dampingFactor = g_clothDampingFactor[clothIndex];
 
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                float velocityCoefficient = (1.f - dampingFactor);
 
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                float4 difference = position - previousPosition;
 
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                velocity = difference*velocityCoefficient*isolverdt;            
 
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                g_vertexVelocities[nodeID] = velocity;
 
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                g_vertexForces[nodeID] = (float4)(0.f, 0.f, 0.f, 0.f);                                                          
 
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        }
 
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}
 
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);
 
 
b'\\ No newline at end of file'