Rendering 1 million cubelets ?? Is it even possible ?

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1

Hi,

My objective is to render a cube which has 1 million cubelets. So the dimensions are 100100100 cubelets. My question is there any possibilty to render 1 million cubelets at a time with a decent frame rate. Here is my code

var cubeinstance : Transform;
var dimension = 10;
function Start ()
{
    for (var z = 0; z < dimension; z++) 
    {
	    for (var y = 0; y < dimension; y++) 
	    {
	        for (var x = 0; x < dimension; x++) 
	        {
	            Instantiate(cubeinstance, Vector3 (x, y, z), Quaternion.identity);
	        }
	    }
    }
}

Created a cube prefab and assigned it to this script and attached this script with the main camera.

The Problem : If I try to render more than 303030, the framerate drops severely.

Any ideas for optimization ??
Thank you.

firstly: Do you really need to render 1 mil cubes? (What the hell are you doing?) secondly: take a look at voxels

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Unless you plan some x-ray vision feature, you won't need to display all of these cubelets at once, so consider generating only those, that are required and manage them using a pool. If one needs to disappear, return it to the pool. If another one has to be drawn, get it from pool.

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1 Answer

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I’d say it’s impossible to have that many seperate GameObjects, let alone instantiate them at the same time.
You could do it minecraft-style and instantiate a custom mesh with textures that creates a mesh of many cubes. Check the various threads on “Minecraft in Unity3D”.