Basically I want to create a voxelizer (for personal purposes) and if I only use the outermost cubes and properly cull their faces (for instance if I convert a 16x16x16 box into 1352 1x1x1 cubes, how much performance drawbacks will I have?
#How does making your model out of a lot of 1x1x1 cubes affect performance?
silent drift
ancient lilyBOT
silent drift
PS. I'm not talking about performance in blockbench, but performance in minecraft
gritty atlas
PS. I'm not talking about performance in blockbench, but performance in minecraf...
The result will be 1352 times worse for performance because there is 1352 times more faces to process
blissful willow
Actually 1530 times worse, as that's how much faces even a fully optimized voxel model would minimally still have
Additionally you'd have 6120 extra vertices in the model, which roughly equals to 146KB of data that needs to be send to the GPU every time your model needs to be drawn. (Which happens quite regularly based on the use of such a model)
gritty atlas
Actually 1530 times worse, as that's how much faces even a fully optimized voxel...
how would turning 1 cube with 6 faces into 1352 cubes with (potentially) 8112 faces be 1530 times worse 🤔 ?
blissful willow
1 cube = 6 faces, turning each pixel at 16x into it's own cube, would result in one face becoming 256 faces.
For 6 faces that equals 1536, substract the 6 original ones, and you have 1530 faces more than before.
gritty atlas
which would be 256 times worse
but that's under the assumption the voxel model is removing unnecessary faces
blissful willow
and if I only use the outermost cubes and properly cull their faces
Using the outermost only, would make culling more innefficient, even increasing the amount of faces to 2708 extra ones.
gritty atlas
oh, missed that part
blissful willow
Even without culling, performance cost scales by faces, not cubes, so it would've been 1352*6 times worse 😛
I guess I should stop my usual performance rant here 😅
gritty atlas
Even without culling, performance cost scales by faces, not cubes, so it would'v...
yeah, but 8112 is 1352 times more faces than 6 faces -> hence why it's 1352 worse
it would be 8112 times worse if it were only 1 face in the beginning
blissful willow
That's actually a pretty good point. In that case a fully optimzied voxelized cube would just be 256 times worse.