diff --git a/src/main.rs b/src/main.rs
index 7774631..68312f8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -124,11 +124,22 @@ fn main() -> io::Result<()> {
 
 			let base = m_camera * base;
 			let ray = m_camera * normalize(ray);
+			let mut dist = f32::INFINITY;
 
 			for f in &mesh {
 				let color = clamp(to_ivec3(f.normal * 120.0 + 128.0), ivec3(0, 0, 0), ivec3(255, 255, 255));
-				let ds = (0..3).map(|k| edge_dist(f.vertices[k], f.vertices[(k + 1) % 3], base, ray));
-				if ds.into_iter().all(|d| d > 0.0) {
+				let fs = (0..3).map(|k| edge_dist(f.vertices[k], f.vertices[(k + 1) % 3], base, ray));
+				if fs.into_iter().all(|f| f > 0.0) {
+					let m = Mat3 { c0: f.vertices[1] - f.vertices[0], c1: f.vertices[2] - f.vertices[0], c2: -ray };
+					if let Some(m) = m.inverse() {
+						let rel = m * (base - f.vertices[0]);
+						if rel.z > dist {
+							continue;
+						}
+						dist = rel.z;
+					} else {
+						continue;
+					}
 					img.put_pixel(x, y, Color(color.x as u8, color.y as u8, color.z as u8));
 				}
 			}