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Added initial Smoothed Particle Hydrodynamics implementation (SPH), for CPU and CUDA.

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This software is contributed under the ZLib license by Rama Hoetzlein, http://www.rchoetzlein.com
We plan to integrate the SPH into the core Bullet library, including interaction with rigid bodies and soft bodies.
This commit is contained in:
erwin.coumans
2009-05-13 22:28:03 +00:00
parent 4616b62686
commit e260bcd1b2
50 changed files with 61309 additions and 0 deletions
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70
Extras/sph/common/vector.cpp Normal file
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/*
FLUIDS v.1 - SPH Fluid Simulator for CPU and GPU
Copyright (C) 2009. Rama Hoetzlein, http://www.rchoetzlein.com
ZLib license
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "vector.h"
#include "matrix.h"
Vector3DF &Vector3DF::operator*= (const MatrixF &op)
{
double *m = op.GetDataF ();
double xa, ya, za;
xa = x * (*m++); ya = x * (*m++); za = x * (*m++); m++;
xa += y * (*m++); ya += y * (*m++); za += y * (*m++); m++;
xa += z * (*m++); ya += z * (*m++); za += z * (*m++); m++;
xa += (*m++); ya += (*m++); za += (*m++);
x = (float) xa; y = (float) ya; z = (float) za;
return *this;
}
Vector3DF &Vector3DF::operator*= (const Matrix4F &op)
{
float xa, ya, za;
xa = x * op.data[0] + y * op.data[4] + z * op.data[8] + op.data[12];
ya = x * op.data[1] + y * op.data[5] + z * op.data[9] + op.data[13];
za = x * op.data[2] + y * op.data[6] + z * op.data[10] + op.data[14];
x = xa; y = ya; z = za;
return *this;
}
Vector4DF &Vector4DF::operator*= (const MatrixF &op)
{
double *m = op.GetDataF ();
double xa, ya, za, wa;
xa = x * (*m++); ya = x * (*m++); za = x * (*m++); wa = x * (*m++);
xa += y * (*m++); ya += y * (*m++); za += y * (*m++); wa += y * (*m++);
xa += z * (*m++); ya += z * (*m++); za += z * (*m++); wa += z * (*m++);
xa += w * (*m++); ya += w * (*m++); za += w * (*m++); wa += w * (*m++);
x = xa; y = ya; z = za; w = wa;
return *this;
}
Vector4DF &Vector4DF::operator*= (const Matrix4F &op)
{
double xa, ya, za, wa;
xa = x * op.data[0] + y * op.data[4] + z * op.data[8] + w * op.data[12];
ya = x * op.data[1] + y * op.data[5] + z * op.data[9] + w * op.data[13];
za = x * op.data[2] + y * op.data[6] + z * op.data[10] + w * op.data[14];
wa = x * op.data[3] + y * op.data[7] + z * op.data[11] + w * op.data[15];
x = xa; y = ya; z = za; w = wa;
return *this;
}