Fix collide issue on PSP

src/duskrpg/scene/overworldscene.c

@@ -17,8 +17,13 @@
 #include "display/color.h"
 #include "time/time.h"
 
-#define OVERWORLD_SCENE_CAMERA_ORBIT_RADIUS 8.0f
-#define OVERWORLD_SCENE_CAMERA_ORBIT_HEIGHT 5.0f
+// Radius must stay well outside the floor's footprint (a 20x20 plane has a
+// corner-to-center distance of 10*sqrt(2) =~ 14.1) -- orbiting inside that
+// puts parts of the floor's own geometry near/behind the camera's view
+// direction, which the PSP's legacy GU pipeline can't clip properly and
+// drops the whole triangle instead of clipping it.
+#define OVERWORLD_SCENE_CAMERA_ORBIT_RADIUS 18.0f
+#define OVERWORLD_SCENE_CAMERA_ORBIT_HEIGHT 10.0f
 #define OVERWORLD_SCENE_CAMERA_ORBIT_SPEED 0.5f
 
 static overworldcameraorbit_t OVERWORLD_SCENE_CAMERA_ORBIT;