diff options
Diffstat (limited to 'fennel-raytracer.fnl')
| -rw-r--r-- | fennel-raytracer.fnl | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fennel-raytracer.fnl b/fennel-raytracer.fnl index ca5e400..462ac5a 100644 --- a/fennel-raytracer.fnl +++ b/fennel-raytracer.fnl @@ -130,7 +130,7 @@ multiplication." (fn degrees->radians [d] "Convert D, a value in degrees, to radians." - (* d (/ math.pi 360))) + (* d (/ math.pi 180))) (local image-width 1920) (local image-height 1080) @@ -144,7 +144,7 @@ multiplication." (fn coordinate->ray [x y] "Return the ray corresponding to the point X, Y on the viewport plane." (let [dist 1.0 - top (* dist (math.tan (degrees->radians camera-fov))) + top (* dist (math.tan (/ (degrees->radians camera-fov) 2))) right (* top image-aspect-ratio) bottom (- top) left (- right) |