camera

1 files changed, 8 insertions, 9 deletions

diff --git a/src/camera.rs b/src/camera.rs
index 033f962..e58c13e 100644
--- a/src/camera.rs
+++ b/src/camera.rs
@@ -1,7 +1,6 @@
 use crate::calculus::calculus::{deg2rad, sample_square, Point3, Ray, Vec3};
-use crate::common::{get_image_height, Color, DisplayBuffer, Pixel, ASPECT_RATIO, CAMERA_CENTER, FOCAL_LENGTH, IMG_WIDTH, LOOK_AT, LOOK_FROM, MAX_DEPTH, SAMPLES_PER_PIXEL, VFOV, VIEWPORT_HEIGHT, VUP};
+use crate::common::{get_image_height, Color, DisplayBuffer, Pixel, ASPECT_RATIO, IMG_WIDTH, LOOK_AT, LOOK_FROM, MAX_DEPTH, SAMPLES_PER_PIXEL, VFOV, VUP};
 use crate::interval::Interval;
-use crate::material::{Material, MaterialType};
 use crate::object::{HitRecord, Hittable, HittableList};
 
 pub struct Camera {
@@ -48,18 +47,18 @@ impl Default for Camera {
         let viewport_height = 2.0 * h * focal_length;
         let viewport_width = viewport_height * (image_width as f32 / image_height as f32);
 
-        let viewport_hor_vector = u.scalar_mul(viewport_height);
-        let viewport_ver_vector = v.scalar_mul(-1.0 * viewport_width);
+        let viewport_u = u.scalar_mul(viewport_width);
+        let viewport_v = v.scalar_mul(-1.0).scalar_mul(viewport_height);
 
-        let delta_pixel_u = viewport_hor_vector.scalar_mul(1.0 / image_width as f32);
-        let delta_pixel_v = viewport_ver_vector.scalar_mul(1.0 / image_height as f32);
+        let delta_pixel_u = viewport_u.scalar_mul(1.0 / image_width as f32);
+        let delta_pixel_v = viewport_v.scalar_mul(1.0 / image_height as f32);
 
         let viewport_upper_left = center
             .sub(&w.scalar_mul(focal_length))
-            .sub(&viewport_hor_vector.scalar_mul(0.5))
-            .sub(&viewport_ver_vector.scalar_mul(0.5));
+            .sub(&viewport_u.scalar_mul(0.5))
+            .sub(&viewport_v.scalar_mul(0.5));
         let pixel_upper_left = viewport_upper_left.add(
-            &delta_pixel_u.add(&delta_pixel_u).scalar_mul(0.5)
+            &delta_pixel_u.add(&delta_pixel_v).scalar_mul(0.5)
         );
 
         let max_depth = MAX_DEPTH;