add Lambertian material

2021-05-11 22:15:09 +02:00 · 2021-05-11 22:15:09 +02:00 · b3c47a914f
commit b3c47a914f
parent 3296ea3e81
7 changed files with 85 additions and 19 deletions
--- a/in_one_weekend/src/camera.zig
+++ b/in_one_weekend/src/camera.zig
@ -30,7 +30,7 @@ pub const Camera = struct {
    pub fn getRay(self: Camera, u: f32, v: f32) Ray {
        return Ray{
            .origin = self.origin,
-            .direction = self.lowerLeftCorner.add(self.horizontal.mul(u)).add(self.vertical.mul(v)).sub(self.origin),
+            .direction = self.lowerLeftCorner.add(self.horizontal.mul_s(u)).add(self.vertical.mul_s(v)).sub(self.origin),
        };
    }
 };