If you want to use only 3d commands, you could consider using a 2nd camera to record the track instead of using 2d map tiles. The round shape can be a round mesh that is textured with the map:
Open in online IDE;----------------------------------------------------------------------------------------------------- ; setup graphics ;----------------------------------------------------------------------------------------------------- Graphics3D 800, 600, 0, 2 SetBuffer BackBuffer() ;----------------------------------------------------------------------------------------------------- ; setup cameras ;----------------------------------------------------------------------------------------------------- ;setup 1st camera camera = CreateCamera() MoveEntity camera, 0, 10, -10 ;setup 2nd camera camera2 = CreateCamera(camera) MoveEntity camera2, 0, 10, 0 RotateEntity camera2, 90, 0, 0 CameraProjMode camera2, 2 CameraZoom camera2, 0.01 ;----------------------------------------------------------------------------------------------------- ; create round shape ;----------------------------------------------------------------------------------------------------- ;create texture for map tex = CreateTexture(512, 512) ;create round flat mesh mesh = CreateMesh() surf = CreateSurface(mesh) ;create vertices AddVertex(surf, 0, 0, 0, 0.5, 0.5) For i = 0 To 36 x# = Cos(i * 10) y# = Sin(i * 10) AddVertex(surf, x, y, 0, x / 2 + 0.5, y / 2 + 0.5) Next ;create triangles For i = 0 To 36 i2 = (i + 1) Mod 37 + 1 AddTriangle surf, 0, i + 1, i2 Next ;flip mesh FlipMesh mesh ;position mesh in upperleft corner of 1st camera PositionEntity mesh, -7.5, 15, 0 ;link to camera EntityParent mesh, camera ;make full-bright EntityFX mesh, 1 ;scale mesh 2x ScaleEntity mesh, 2, 2, 2 ;----------------------------------------------------------------------------------------------------- ; create floor ;----------------------------------------------------------------------------------------------------- ;create red dot texture gtex = CreateTexture(32, 32) SetBuffer TextureBuffer(gtex) Color 255, 255, 0 Rect 0, 0, 32, 32 Color 255, 0, 0 Oval 0, 0, 16, 16 SetBuffer BackBuffer() ScaleTexture gtex, 50, 50 ;create ground plane plane = CreatePlane() EntityTexture plane, gtex ;----------------------------------------------------------------------------------------------------- ; main loop ;----------------------------------------------------------------------------------------------------- Repeat ;cursor keys to walk around If KeyDown(203) Then TurnEntity camera, 0, 1, 0 If KeyDown(205) Then TurnEntity camera, 0, -1, 0 If KeyDown(200) Then MoveEntity camera, 0, 0, +1 If KeyDown(208) Then MoveEntity camera, 0, 0, -1 ;render 2nd camera onto texture "tex" CameraProjMode camera, 0 CameraProjMode camera2, 2 RenderWorld CopyRect 0, 0, GraphicsWidth(), GraphicsHeight(), 0, 0, BackBuffer(), TextureBuffer(tex) ;apply "tex" to round mesh EntityTexture mesh, tex ;render 1st camera CameraProjMode camera, 1 CameraProjMode camera2, 0 RenderWorld Flip Until KeyHit(1) End