[3D] [PB 5.60] Plane TileCountX and TileCountZ limit Max

[falsam]

This code crashed when TileCountX and TileCountZ > 255

Code: Select all

InitEngine3D() 
InitSprite() 

OpenWindow(0, 0, 0, 640, 480, "Plane example", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)
OpenWindowedScreen(WindowID(0), 0, 0, 640, 480, 0, 0, 0)

; Light
CreateLight(#PB_Any, RGB(25, 25, 180), -5, 10, 5, #PB_Light_Point)

; Camera
CreateCamera(0, 0, 0, 100, 100)
MoveCamera(0, 2, 1, 3, #PB_Absolute | #PB_Local)
CameraLookAt(0, 0, 0, 0)

; Create the plane and attach it to the scene
CreatePlane(0, 10000, 10000, 1000, 1000, 0, 0)
CreateEntity(0, MeshID(0), #PB_Material_None)

Repeat
  RenderWorld()
  FlipBuffers()
Until WaitWindowEvent(1) = #PB_Event_CloseWindow

[Edit] CreatePlane(#Mesh, TileSizeX, TileSizeZ, TileCountX, TileCountZ, TextureRepeatCountX, TextureRepeatCountZ)

[IdeasVacuum]

Hi falsam

I don't understand your snippet - it does not have a Tile Count?

I do get a crash though:

Microsoft Visual C++ Runtime Library
Runtime Error!
Program: ...sers\Chris\AppData\Local\Temp\PureBasic_Compilation0.exe
abnormal program termination

Edit: Ah, I see it now - TileCountX/Z are parameters of CreatePlane(). Crashes regardless of TileSizeX/Z.

[Samuel]

The mesh is exceeding 65536 indices (16 bit limit) which is why it's crashing. You'll need to break the plane into multiple meshes.

[falsam]

Thanks Samuel.

[IdeasVacuum]

Hi Samuel

256 * 256 = 65536

Code: Select all

CreatePlane(0, 2, 2, 256, 256, 0, 0) ; = Crash

255 * 255 = 65025

I know I'm not comparing apples with apples but 65,025 tiles in a mesh is not that many in a typical CAD System that has to process, for example, scanned data (.STL file).

If the workaround is to define the plane with multiple meshes, can they then be joined so that the plane can be manipulated/deformed as one entity?