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Michal Staniszewski

@bonzajplc • 4,877 subscribers

bonzaj/plastic #demoscene Studio Director at @plasticdemo Currently working on BFS. Likes to program everything on GPUs. Art + Tech

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Writing deterministic physics be like ... You need to keep your maths tight. There's no need to go full fixed floats or integers. We managed to quantize just impulses, since in HLSL atomic operations needs to be performed on ints. The result is what you see on the movie. This enables us to do multiplayer simulation since all the players will see exactly the same thing.

Writing deterministic physics be like ... You need to keep your maths tight. There's no need to go full fixed floats or integers. We managed to quantize just impulses, since in HLSL atomic operations needs to be performed on ints. The result is what you see on the movie. This enables us to do multiplayer simulation since all the players will see exactly the same thing.

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In BFS you can simulate fluids in multiplayer. Because the simulation is deterministic, there's a bit of performance penalty, but there is still a lot of space to be optimized. The most important thing is that it works and brawling in water is quite a fun!

In BFS you can simulate fluids in multiplayer. Because the simulation is deterministic, there's a bit of performance penalty, but there is still a lot of space to be optimized. The most important thing is that it works and brawling in water is quite a fun!

Michal Staniszewski

61,210 views • 12 days ago

This is a quick test that I did exactly 4 years ago while searching for rendering solutions for BFS in UnrealEngine. You see millions of Nanite meshes, with their transformations injected directly into GPUSceneInstanceSceneData. You could do rigid animations on that buffer too with all culling being performed. At some point we completely removed triangulated preprocessed meshes, so Nanite and Lumen and finally Niagara had to be disabled. In the end we ended with using a mixture of raymarching inside rasterized BBoxes and global voxel grid for destructive world. Sebastian Aaltonen being a huge inspriration here

This is a quick test that I did exactly 4 years ago while searching for rendering solutions for BFS in UnrealEngine. You see millions of Nanite meshes, with their transformations injected directly into GPUSceneInstanceSceneData. You could do rigid animations on that buffer too with all culling being performed. At some point we completely removed triangulated preprocessed meshes, so Nanite and Lumen and finally Niagara had to be disabled. In the end we ended with using a mixture of raymarching inside rasterized BBoxes and global voxel grid for destructive world. Sebastian Aaltonen being a huge inspriration here

Michal Staniszewski

34,686 views • 19 days ago

A new look on our Terrain Editor/Generator. Everything is computed on GPU so we were surprised that even when the whole terrain is recomputed from scratch, it is still realtime. Any ideas how to fix TAA ghosting since we don't know how to provide motion vectors?

A new look on our Terrain Editor/Generator. Everything is computed on GPU so we were surprised that even when the whole terrain is recomputed from scratch, it is still realtime. Any ideas how to fix TAA ghosting since we don't know how to provide motion vectors?

Michal Staniszewski

14,654 views • 27 days ago

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