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| author | Anthony LaTorre <telatorre@gmail.com> | 2011-05-07 20:32:35 -0400 |
|---|---|---|
| committer | Anthony LaTorre <telatorre@gmail.com> | 2011-05-07 20:32:35 -0400 |
| commit | 16736eeae08d9627ad751c65919900ae9191a08f (patch) | |
| tree | 602af6b7fdfd32c9cdc7fc3b85e6c8e247209197 /rotate.h | |
| parent | 76a6dd33cdaf4b583b7e8353f198925ddb4a4685 (diff) | |
| download | chroma-16736eeae08d9627ad751c65919900ae9191a08f.tar.gz chroma-16736eeae08d9627ad751c65919900ae9191a08f.tar.bz2 chroma-16736eeae08d9627ad751c65919900ae9191a08f.zip | |
tie fighter
Diffstat (limited to 'rotate.h')
| -rw-r--r-- | rotate.h | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/rotate.h b/rotate.h deleted file mode 100644 index 52d6d6a..0000000 --- a/rotate.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef __ROTATE_H__ -#define __ROTATE_H__ - -__device__ const Matrix IDENTITY_MATRIX = {1,0,0,0,1,0,0,0,1}; -__device__ const Matrix ZERO_MATRIX = {0,0,0,0,0,0,0,0,0}; - -__device__ __host__ Matrix make_rotation_matrix(float phi, const float3 &n) -{ - /* rotate points counterclockwise, when looking towards +infinity, - through an angle `phi` about the axis `n`. */ - - float cos_phi = cosf(phi); - float sin_phi = sinf(phi); - - return IDENTITY_MATRIX*cos_phi + (1-cos_phi)*outer(n,n) + - sin_phi*make_matrix(0,n.z,-n.y,-n.z,0,n.x,n.y,-n.x,0); -} - -__device__ __host__ float3 rotate(const float3 &a, float phi, const float3 &n) -{ - return make_rotation_matrix(phi,n)*a; -} - -#endif |