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Updated all the libs, added citro3d, added ctr.swkbd (WIP, untested)

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Firew0lf 2016-08-05 17:30:24 +02:00
parent 68a44645f7
commit 49c87e5526
97 changed files with 7341 additions and 944 deletions
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33
libs/citro3d/source/maths/mtx_perspstereotilt.c Normal file
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#include <c3d/maths.h>
void Mtx_PerspStereoTilt(C3D_Mtx* mtx, float fovx, float invaspect, float near, float far, float iod, float screen, bool isLeftHanded)
{
// Notes:
// Once again, we are passed "fovy" and the "aspect ratio"; however the 3DS screens are sideways,
// and the formula had to be tweaked. With stereo, left/right separation becomes top/bottom separation.
// The detailed mathematical explanation is in mtx_persptilt.c.
float fovx_tan = tanf(fovx/2.0f);
float fovx_tan_invaspect = fovx_tan*invaspect;
float shift = iod / (2.0f*screen); // 'near' not in the numerator because it cancels out in mp.r[1].z
Mtx_Zeros(mtx);
mtx->r[0].y = 1.0f / fovx_tan;
mtx->r[1].x = -1.0f / fovx_tan_invaspect;
mtx->r[1].w = iod / 2.0f;
mtx->r[2].w = near * far / (near - far);
if (isLeftHanded)
{
mtx->r[1].z = -shift / fovx_tan_invaspect;
mtx->r[2].z = 0.5f*(near + far) / (far - near) - 0.5f;
mtx->r[3].z = 1.0f;
}
else
{
mtx->r[1].z = shift / fovx_tan_invaspect;
mtx->r[2].z = 0.5f*(near + far) / (near - far) + 0.5f;
mtx->r[3].z = -1.0f;
}
}