ray: cleanup ray_camera_frame_t fragments

Previously every fb_fragment_t (and thus thread) was constructing
its own ray_camera_frame_t view into the scene, duplicating some
work.

Instead introduce ray_camera_fragment_t to encapsulate the truly
per-fragment state and make ray_scene_render_fragment() operate
on just this stuff with a reference to a shared
ray_camera_frame_t prepared once per-frame.

Some minor ray_camera.c cleanups sneak in as well (prefer multiply
instead of divide, whitespace cleanups...)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/modules/ray/ray.c b/src/modules/ray/ray.c
index ac00806..60784db 100644
--- a/src/modules/ray/ray.c
+++ b/src/modules/ray/ray.c
@@ -154,7 +154,7 @@ static void ray_prepare_frame(void *context, unsigned n_cpus, fb_fragment_t *fra
 /* ray trace a simple scene into the fragment */
 static void ray_render_fragment(void *context, fb_fragment_t *fragment)
 {
-	ray_scene_render_fragment(&scene, &camera, fragment);
+	ray_scene_render_fragment(&scene, fragment);
 }