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fixed perspectives

This commit is contained in:
Philippe Renon 2020-10-26 10:56:32 +01:00
parent 6eba88fa2d
commit e714eb31ce
1 changed files with 6 additions and 5 deletions
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11
src/geometry/perspective.rs
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@ -263,7 +263,7 @@ impl<N: RealField> Perspective3<LhNo, N> {
res.set_znear_and_zfar(znear, zfar); res.set_znear_and_zfar(znear, zfar);
res.matrix[(3, 3)] = N::zero(); res.matrix[(3, 3)] = N::zero();
res.matrix[(3, 2)] = -N::one(); res.matrix[(3, 2)] = N::one();
res res
} }
@ -287,8 +287,9 @@ impl<N: RealField> Perspective3<LhNo, N> {
/// Updates this perspective matrix with new near and far plane offsets of the view frustum. /// Updates this perspective matrix with new near and far plane offsets of the view frustum.
#[inline] #[inline]
pub fn set_znear_and_zfar(&mut self, znear: N, zfar: N) { pub fn set_znear_and_zfar(&mut self, znear: N, zfar: N) {
self.matrix[(2, 2)] = (zfar + znear) / (znear - zfar); let two: N = crate::convert(2.0);
self.matrix[(2, 3)] = zfar * znear * crate::convert(2.0) / (znear - zfar); self.matrix[(2, 2)] = (zfar + znear) / (zfar - znear);
self.matrix[(2, 3)] = -(two * zfar * znear) / (zfar - znear);
} }
} }
@ -337,8 +338,8 @@ impl<N: RealField> Perspective3<RhZo, N> {
/// Updates this perspective matrix with new near and far plane offsets of the view frustum. /// Updates this perspective matrix with new near and far plane offsets of the view frustum.
#[inline] #[inline]
pub fn set_znear_and_zfar(&mut self, znear: N, zfar: N) { pub fn set_znear_and_zfar(&mut self, znear: N, zfar: N) {
self.matrix[(2, 2)] = zfar / (znear - zfar); self.matrix[(2, 2)] = -zfar / (zfar - znear);
self.matrix[(2, 3)] = (zfar * znear) / (znear - zfar); self.matrix[(2, 3)] = -(zfar * znear) / (zfar - znear);
} }
} }