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Minor formatting improvements in frustum function

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This commit is contained in:
Brendan Zabarauskas 2012-12-18 12:27:56 +10:00
parent 896c7845e4
commit 7cf15d7f10
1 changed files with 5 additions and 1 deletions
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6
src/funs/projection.rs
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@ -28,20 +28,24 @@ pub pure fn perspective<T:Copy Float, A:Angle<T>>(fovy: A, aspectRatio: T, near:
#[inline(always)]
pub pure fn frustum<T:Copy Float>(left: T, right: T, bottom: T, top: T, near: T, far: T) -> Mat4<T> {
let _0: T = Number::from(0);
let _1: T = Number::from(1);
let _2: T = Number::from(2);
let c0r0 = (_2 * near) / (right - left);
let c0r1 = _0;
let c0r2 = _0;
let c0r3 = _0;
let c1r0 = _0;
let c1r1 = (_2 * near) / (top - bottom);
let c1r2 = _0;
let c1r3 = _0;
let c2r0 = (right + left) / (right - left);
let c2r1 = (top + bottom) / (top - bottom);
let c2r2 = -(far + near) / (far - near);
let c2r3 = Number::from(-1);
let c2r3 = -_1;
let c3r0 = _0;
let c3r1 = _0;
let c3r2 = -(_2 * far * near) / (far - near);