Add backbuffer

src/display/camera.c

@@ -9,6 +9,7 @@
 #include "display/display.h"
 #include "assert/assert.h"
 #include "scene/node.h"
+#include "display/framebuffer/framebuffer.h"
 
 camera_t CAMERA_DATA[ECS_ENTITY_COUNT_MAX] = { 0 };
 ecscomponent_t CAMERA_COMPONENT = ecsComponentInit(
@@ -56,7 +57,10 @@ void cameraPush(const ecsid_t id) {
     case CAMERA_TYPE_PERSPECTIVE:
       glm_perspective(
         cam->perspective.fov,
-        4.0f / 3.0f,
+        (
+          (float_t)frameBufferGetWidth(FRAMEBUFFER_BOUND) /
+          (float_t)frameBufferGetHeight(FRAMEBUFFER_BOUND)
+        ),
         cam->nearClip,
         cam->farClip,
         projection