diff options
Diffstat (limited to 'src/camera.rs')
| -rw-r--r-- | src/camera.rs | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/camera.rs b/src/camera.rs index c132e44..054e3b5 100644 --- a/src/camera.rs +++ b/src/camera.rs @@ -167,13 +167,14 @@ impl Camera { } pub fn light_point(&self, point: Vector) -> f32 { - let base_light = 0.1; + let base_light = 0.01; return base_light + (1.0 - base_light) * (self.apply_shadow(point) * 0.7 + self.apply_ambient(point) * 0.3) } pub fn apply_shadow(&self, point: Vector) -> f32 { let mut res: f32 = 1.0; - let mut t = 0.001; + let mut ph = 1e20; + let mut t = 0.1; let k = 4.0; while t < 7.0 { @@ -181,8 +182,11 @@ impl Camera { if h < 0.001 { return 0.00 } - res = res.min(k * h / t); + let y = h * h / (2.0 * ph); + let d = (h * h - y * y).sqrt(); + res = res.min(k * d / (t - y).max(0.0)); t += h; + ph = h; } return res |