mirror/glm
1
0
Fork 0
mirror of https://github.com/g-truc/glm.git synced 2024-11-10 04:31:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

Back ported resolution for issue #71 for znear == 0 bug into branch 0.9.4

Browse Source
This commit is contained in:
Christophe Riccio 2013-05-28 03:47:26 +02:00
parent e5df5fb0b3
commit f4f7a71964
1 changed files with 6 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
glm/gtc/matrix_transform.inl
View File

@ -236,21 +236,19 @@ namespace glm
valType const & zFar
)
{
assert(aspect != valType(0));
assert(zFar != zNear);
#ifdef GLM_FORCE_RADIANS
valType const rad = fovy;
#else
valType const rad = glm::radians(fovy);
#endif
valType range = tan(rad / valType(2)) * zNear;
valType left = -range * aspect;
valType right = range * aspect;
valType bottom = -range;
valType top = range;
valType tanHalfFovy = tan(rad / valType(2));
detail::tmat4x4<valType> Result(valType(0));
Result[0][0] = (valType(2) * zNear) / (right - left);
Result[1][1] = (valType(2) * zNear) / (top - bottom);
Result[0][0] = valType(1) / (aspect * tanHalfFovy);
Result[1][1] = valType(1) / (tanHalfFovy);
Result[2][2] = - (zFar + zNear) / (zFar - zNear);
Result[2][3] = - valType(1);
Result[3][2] = - (valType(2) * zFar * zNear) / (zFar - zNear);