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Correct inaccurate WolframAlpha link in mtx_persp.c

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fincs 2017-02-14 19:40:59 +01:00
parent 417d20b505
commit 141afdb18a
1 changed files with 1 additions and 1 deletions
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source/maths/mtx_persp.c
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@ -7,7 +7,7 @@ void Mtx_Persp(C3D_Mtx* mtx, float fovy, float aspect, float near, float far, bo
Mtx_Zeros(mtx); Mtx_Zeros(mtx);
// Standard perspective projection matrix, with a fixed depth range of [-1,0] (required by PICA) // Standard perspective projection matrix, with a fixed depth range of [-1,0] (required by PICA)
// http://www.wolframalpha.com/input/?i={{1,0,0,0},{0,1,0,0},{0,0,0.5,-0.5},{0,0,0,1}}{{1/(a*tan(v)),0,0,0},{0,1/tan(v),0,0},{0,0,(n%2Bf)/(n-f),(fn)/(n-f)},{0,0,0,-1}} // http://www.wolframalpha.com/input/?i={{1,0,0,0},{0,1,0,0},{0,0,0.5,-0.5},{0,0,0,1}}{{1/(a*tan(v)),0,0,0},{0,1/tan(v),0,0},{0,0,(2%2Bn%2Bf)/(n-f),(fn)/(n-f)},{0,0,-1,0}}
mtx->r[0].x = 1.0f / (aspect * fovy_tan); mtx->r[0].x = 1.0f / (aspect * fovy_tan);
mtx->r[1].y = 1.0f / fovy_tan; mtx->r[1].y = 1.0f / fovy_tan;