Replace old classes with compute shader structs

1 files changed, 8 insertions, 20 deletions

diff --git a/src/camera.cpp b/src/camera.cpp
index c7e2e35..6cb7b83 100644
--- a/src/camera.cpp
+++ b/src/camera.cpp
@@ -5,34 +5,22 @@
 camera::camera(
         point3 position,
         point3 target,
-        double v_fov,
-        double aspect_ratio,
-        double aperture,
-        double focus_dist
+        float v_fov,
+        float aspect_ratio,
+        float aperture,
+        float focus_dist
     ) : position(position), lens_radius(aperture / 2.0) {
 
-    forward = (target - position).unit();
+    auto forward = (target - position).unit();
     right = forward.cross(vec3{ 0.0, 1.0, 0.0 }).unit();
     up = right.cross(forward).unit();
 
     auto h = tan(deg_to_rad(v_fov) / 2.0);
-    viewport_height = 2.0 * h;
-    viewport_width = viewport_height * aspect_ratio;
+    auto viewport_height = 2.0 * h;
+    auto viewport_width = viewport_height * aspect_ratio;
 
     horizontal  = focus_dist * viewport_width * right;
     vertical    = focus_dist * viewport_height * up;
 
-    bottom_left_pixel = position - horizontal / 2.0 - vertical / 2.0 - forward * focus_dist;
-}
-
-ray camera::get_ray(double u, double v) const {
-    vec3 rd = lens_radius * random_in_unit_disk();
-    vec3 offset = rd.x * right + rd.y * up;
-
-    point3 viewport_pixel = bottom_left_pixel + u * horizontal + v * vertical;
-
-    return ray {
-        position + offset,
-        viewport_pixel - position - offset
-    };
+    first_pixel = position - horizontal / 2.0 - vertical / 2.0 + focus_dist * forward;
 }