misc - Doc

1 files changed, 4 insertions, 2 deletions

diff --git a/camera.go b/camera.go
index 6575390..6cc3391 100644
--- a/camera.go
+++ b/camera.go
@@ -1,15 +1,17 @@
 package main
 
+// Camera handle view position and screen
 type Camera struct {
-	lower_left_corner            Vec3D
+	lowerLeftCorner              Vec3D
 	origin, horizontal, vertical Vec3D
 }
 
+// GetRay computes Ray given screen params
 func (camera Camera) GetRay(u float64, v float64) Ray {
 	return Ray{
 		camera.origin,
 		AddVec3D(AddVec3D(
-			camera.lower_left_corner,
+			camera.lowerLeftCorner,
 			ScalarProduct(u, camera.horizontal)),
 			ScalarProduct(v, camera.vertical),
 		),