Using one mesh for multiple objects?

BlitzMax Forums/MiniB3D Module/Using one mesh for multiple objects?

The r0nin

(Posted 2008) [#1]

Is it possible to use a single Tmesh object for multiple displayed objects? Since I have several identical objects, I'd like to load just one mesh and texture, then position and rotate it several times to stand for each of the objects. Is this possible, or do I need a separate Tmesh object loaded for each object I'm displaying?

impixi

(Posted 2008) [#2]

Is it possible to use a single Tmesh object for multiple displayed objects?

Yes, if your objects use the same texture. Example:

SuperStrict

Import sidesign.minib3d

SeedRnd MilliSecs()

Graphics3D 1024, 768, 32

Local camera:TCamera = CreateCamera() 

AmbientLight 255, 255, 255

'Local master:TMesh = LoadMesh("rock001/rock001.b3d")
Local master:TMesh = CreateCube()
HideEntity master

Local layer:TMesh = CreateMesh()

Local num_objs:Int = 500

For Local n:Int = 1 To num_objs

	Local temp_obj:TMesh = CopyMesh(master) 

	ScaleMesh temp_obj, Rnd(5.0, 10.0), Rnd(5.0, 10.0), Rnd(5.0, 10.0)
            RotateMesh temp_obj, 0.0, Rnd(0.0, 360.0), 0.0
	PositionMesh temp_obj, Rnd(-500.0, 500.0), -55.0, (MeshDepth(temp_obj) * 2) + Rnd(0.0, 1000.0)

	AddMesh temp_obj, layer
	
	FreeEntity temp_obj
	
Next

Local renders:Int, old_ms:Int, fps:Int

While Not KeyHit(KEY_ESCAPE)

	UpdateWorld
	RenderWorld 

	renders = renders + 1

	If MilliSecs() -old_ms >= 1000
		old_ms = MilliSecs()
		fps = renders
		renders = 0
	EndIf
	
	Text 5, 5, FPS + " fps"
	
	Flip False
	
Wend 

End

AddMesh is the notable command. See the Blitz3D docs for its limitations.

The r0nin

(Posted 2008) [#3]

Thanks!