SkinnedGrass - Performant interactive foliage

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#82

Hi there! Any progress on the EditableMesh version and possible benchmarks?

#83

EDIT:
As a note to all, because this seems to be confusing for some, this DOES NOT include SkinnedGrass. It is merely a benchmark testing file for EditableMesh grass.

Iā€™m back with some not great newsā€¦ itā€™s pretty slow. There is no ā€œBulkMoveToā€ for EditableMeshes, or anything to optimize a mass vertex update, so you canā€™t really get anything good.

For 10,000 blades of grass Iā€™m getting about 5ms to move the blades and another 1ms for the wind calculation.

Download or create a copy below to try yourself.
Physical Grass Testing.rbxl (53.9 KB)

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#84

I am not getting 5-6ms like you said with your test place, I get around 2-3ms with a few 4.0ms outliers (3 times)

Edit: I noticed that the place file doesnā€™t even have the skinned grass module etc? (I am not sure if I am missing something. Havenā€™t I used this resource before)

#85

My computer specs would make up that difference, my hardware is nearly 10 years old.

This was merely a test to see how EditableMeshes would fare in a real world test, SkinnedGrass just inspired me to try it.

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#86

I do not see that your .rbxl has the SkinnedGrass eitherā€¦ just when I Play in Studio, it has a mesh with grass which moves by the windā€¦ not like the skinnedgrass when you walk aroundā€¦

#87

The purpose of the post is to benchmark EditableMesh and how it can handle grass. It doesnā€™t have and API and features like SkinnedGrass because:

  1. It is a test
  2. The test performance tells us that it would not fare well in a real environment
#88

Except it DOES in SkinnedGrassā€™s ā€œtestā€.

#89

theyre are def some optimizations that can be done in there, i managed to get it up around +20 fps, but that only lead me to 80fps compared to my normal 240.

i think youre right, editable meshes just wouldnt work, moving vertices 1 by 1 is just too slow. roblox needs a function to move in bulk like you said, or let us update editable meshes in parrellel

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#90

Editing editablemeshes in parallel would be a godsendā€¦ allow us to make our own gpus :slight_smile:

#91

Yeah too bad Roblox needs to update 10000 things before improving their engine.:sob: