Uniform block array size limitations

[Lucky4Luuk]

Hey everyone, I was looking into using large arrays in a uniform block (for some voxel data), but I'm running into an issue.
I'm trying to implement a block containing an array [u8; 64 * 64 * 64], but this is not yet implemented as a trait.
Is it possible for the UniformBlock trait to be implemented for arbitrary array sizes, or is this not feasible?

[fayalalebrun]

Have you considered using a 3d texture instead? I believe that would be much more performant, since pushing uniforms is not the fastest operation. And you would need to push a huge uniform with every draw call.

[avl]

You can use a UniformBuffer instead. I'm not sure you can use datatype u8, but you could use a u32, and then, if needed, unpack the u32's into u8s in the glsl-shader.