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Revert "Corrected errors in Perspective function"

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This reverts commit 136b049106.
This commit is contained in:
Kyle De'Vir
2016-06-08 00:38:27 +10:00
parent b4eff02912
commit 743d03451d
1 changed files with 4 additions and 6 deletions
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10
HandmadeMath.h
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@@ -773,13 +773,11 @@ HMM_Perspective(float FOV, float AspectRatio, float Near, float Far)
{ {
hmm_mat4 Result = HMM_Mat4d(1.0f); hmm_mat4 Result = HMM_Mat4d(1.0f);
float TanThetaOver2 = tanf(FOV * (HMM_PI32 / 360.0f)); Result.Elements[0][0] = 1.0f / (AspectRatio * tanf(FOV / 2.0f));
Result.Elements[1][1] = 1.0f / tanf(FOV / 2.0f);
Result.Elements[0][0] = 1.0f / TanThetaOver2;
Result.Elements[1][1] = AspectRatio / TanThetaOver2;
Result.Elements[2][3] = -1.0f; Result.Elements[2][3] = -1.0f;
Result.Elements[2][2] = (Near + Far) / (Near - Far); Result.Elements[2][2] = -(Far + Near) / (Far - Near);
Result.Elements[3][2] = (2.0f * Near * Far) / (Near - Far); Result.Elements[3][2] = -(2.0f * Far * Near) / (Far - Near);
Result.Elements[3][3] = 0.0f; Result.Elements[3][3] = 0.0f;
return (Result); return (Result);