ComputeShader ComputeBuffer Size Limits?

[RaymingW]

Hi all,

I’m building an interactive big data visualization software with Unity right now and I’m planning on using compute shader to draw on rendertexture or construct mesh.

I’m surveying the limitation when comes to the scale of the data. Is there a place I can find out the max size of ComputeBuffer size? This is the closet post I can find right now:

DX11 ComputeShader ComputeBuffer Size Limits?

Does anyone know if there is a limit to the size of a ComputeBuffer? I seem to be having problems when the ComputeBuffer size gets somewhere above 52MB. Or, it may be something to do with the structured buffer stride, but I think it is the total buffer size. The DX11 documents say that DX11 supports "large memory" for resources > 4GB. So, it must support 64bit addressing. The docs also say that indexing is still limited to 32bit, which is still 4G. The Unity ComputeBuffer() constructor, takes …

Another question I have is how expensive is allocating NativeArray to compute buffer? I tried allocating a float array with a length of 30,000 and it took 0.28ms according to the profiler. So I’m good with the current use case I guess. But I’m curious When I will hit the bottleneck.

Cheers!

[xujinm]

hi,dude,did you find the solution?

[joshuacwilde]

@xujinm

hi,dude,did you find the solution?

It just depends on your GPU. You need to look up the specs online.