Thousands of 3D Cubes

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SoCoder -> Snippet Home -> Graphical Engines

Jayenkai	Created : 28 June 2016 System : Windows Language : Blitz Thousands of 3D Cubes
Just checked out Pakz's random 3D map thing, and as nice as it is, it's a bit of a shame that he's using nothing but raw cubes. I found a neat trick to speed up cube-rendering when doing my JNKPlat 3D 06 game, and thought it probably a good idea to post about it. By chucking the cubes into larger meshes, it speeds things up a fair bit. Graphics3D 800,600,0,2 AmbientLight 180,180,180 Global world[100] Global brush[10] For n=0 To 9 brush[n]=CreateBrush(Rand(0,255),Rand(0,255),Rand(0,255)) Next campivot=CreatePivot() cam=CreateCamera(campivot) MoveEntity campivot,100,100,0 MoveEntity cam,0,0,-256 PointEntity cam,campivot cube=CreateCube() For z=0 To 20 world[z]=CreateMesh() For x=0 To 99 For y=0 To 99 ; Move cube into position PositionMesh cube,x2,y2,((z-10)8) ; Paint cube PaintMesh cube,brush[Rand(0,9)] ; Add cube to world AddMesh cube,world[z] ; Move cube back to default PositionMesh cube,-(x2),-(y2),-((z-10)8) Next Next Next FreeEntity cube Repeat Cls RenderWorld RotateEntity campivot,MouseY()-300,MouseX()-400,0 Flip Until KeyDown(1) --v Hopefully Pakz can make use of this information. For further speeding up, you're better off creating your own mesh with only the visible sides being added to the mesh, but that's a whole lot of figuring out, and I'm far too lazy to do that Note : Don't add too many meshes together, or your graphics card will have a whinge. Milage may vary, depending on the graphics card..

Comments
Friday, 01 July 2016, 02:49
Pakz	Nice example! Years ago I did try to put everything into larger meshes. Did not bother this time since the speed seemed fast enough and I forgot a lot of things about 3d.

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