Create scene data structure

include/camera.h

@@ -2,8 +2,7 @@
 #define CAMERA_H
 
 #include "img.h"
-#include "obj.h"
-#include "vec3.h"
+#include "scene.h"
 
 #include <stdint.h>
 
@@ -19,7 +18,6 @@ camera_t camera_init(
     uint32_t img_height, unsigned samples_per_pixel);
 
 void camera_render(
-    const camera_t *camera, const obj_t *scene, unsigned scene_count,
-    img_t *img_out);
+    const camera_t *camera, const scene_t *scene, img_t *img_out);
 
 #endif

include/scene.h

@@ -0,0 +1,12 @@
+#ifndef SCENE_H
+#define SCENE_H
+
+#include "obj.h"
+
+typedef struct {
+	vec3_t sky_colour;
+	obj_t *objs;
+	unsigned obj_count;
+} scene_t;
+
+#endif