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| 09:53 |
MinetestBot |
[git] grorp -> minetest/minetest: Minor rendering code fixes (#15399) af61de7 https://github.com/minetest/minetest/commit/af61de77773b8cbb37fbd888c77421cf63173dd2 (2024-11-12T09:52:20Z) |
| 09:53 |
MinetestBot |
[git] wrrrzr -> minetest/minetest: MainMenuManager: fix FIXME (#15414) 1c92d62 https://github.com/minetest/minetest/commit/1c92d6243fd42291d25798982c1dd1f1bd1013bb (2024-11-12T09:52:37Z) |
| 09:53 |
MinetestBot |
[git] sfan5 -> minetest/minetest: Add basic unit tests for collisionMoveSimple f916f5d https://github.com/minetest/minetest/commit/f916f5de78c970b55257f38e5d66a6ae34be695f (2024-11-12T09:52:46Z) |
| 09:53 |
MinetestBot |
[git] sfan5 -> minetest/minetest: Remove redundant CollisionInfo::plane 9a44d83 https://github.com/minetest/minetest/commit/9a44d835d6380e8e8a8f2b5070899dc8770aa1db (2024-11-12T09:52:46Z) |
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MinetestBot |
[git] (3 newer commits not shown) |
| 10:07 |
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| 10:17 |
MTDiscord |
<jordan4ibanez> https://tenor.com/view/lifting-workout-bonding-me-and-my-dog-doyouevenlift-gif-16764439 |
| 10:17 |
MTDiscord |
<jordan4ibanez> Them biomes been working out |
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| 17:17 |
MTDiscord |
<_devsh_> @luatic are you the only person working on irrlicht/GL/shaders or are there others? |
| 17:20 |
MTDiscord |
<luatic> I'm definitely not the only person working on it, the fancy effects are coming from other people. I'm currently just doing Irrlicht plumbing I deem necessary. |
| 17:22 |
MTDiscord |
<_devsh_> ok but to plumb/extend irrlicht with more GL/GLES its who ? |
| 17:25 |
MTDiscord |
<luatic> devsh: Quite frankly I don't think we presently have a designated graphics person. |
| 17:30 |
MTDiscord |
<_devsh_> have you thought of making a pure graphics test bed in GLES 3.1 or WebGPU to test rendering tech/optimizations outside of minetest and then port what works? |
| 17:31 |
MTDiscord |
<_devsh_> so you can do this in very short time : https://www.youtube.com/watch?v=40JzyaOYJeY |
| 17:31 |
MTDiscord |
<_devsh_> I think @jumanji has his own voxel renderer in Vulkan (Fortran though :shudder: ) |
| 17:33 |
MTDiscord |
<_devsh_> also testing perf and regressions on potato hardware is easier like that, than benchmarking irrlicht CPU cruft and raw FPS diff |
| 17:33 |
MTDiscord |
<jordan4ibanez> https://tenor.com/view/muahaha-evil-laugh-evil-laugh-futurama-gif-4133163 |
| 17:34 |
MTDiscord |
<_devsh_> cause right now you're doiing research in production, instead of in a testbed nobody in the industry does it that way, the fuck around and find out phase usually happens in small apps |
| 17:35 |
MTDiscord |
<jordan4ibanez> No not voxel renderer, not done yet, also it's just a generic renderer |
| 17:35 |
MTDiscord |
<_devsh_> you don't tear open a large engine with gameplay code and everything and start testing 5 different approaches to rendering |
| 17:35 |
MTDiscord |
<luatic> i agree |
| 17:35 |
MTDiscord |
<luatic> but i wouldn't even say we're quite in the research phase yet |
| 17:36 |
MTDiscord |
<luatic> there's still a lot of obvious refactoring / fixing irrlicht to do, e.g. my current PR (i still have to implement your bounding box calculation suggestion there) |
| 17:36 |
MTDiscord |
<luatic> like, for it to be correct to begin with |
| 17:36 |
MTDiscord |
<luatic> it's a mystery that skeletal animations work at all with the amount of duct tape applied |
| 17:36 |
MTDiscord |
<_devsh_> to do skinning, you really need to use UBOs and Buffer Textures correctly first |
| 17:37 |
MTDiscord |
<luatic> having cleaner, correct skinning code is IMO a sensible first step towards doing it on the GPU |
| 17:37 |
MTDiscord |
<luatic> i don't want to dump a 3kloc PR (though most of that would be removals) on the other coredevs |
| 17:38 |
MTDiscord |
<_devsh_> dynamic indexing of UBO or worse, Uniform Arrays will work "fine" on Nvidia but crater perf on mobiles and DX10 era GPUs that you apparently still care about |
| 17:38 |
MTDiscord |
<_devsh_> adding more uniforms that need to be set, makes every drawcall more expensive |
| 17:39 |
MTDiscord |
<_devsh_> thats where your CPU drawcall cost comes from |
| 17:39 |
MTDiscord |
<luatic> yeah you suggested buffer textures, those should be a good option, is there something else i need to know for when i tackle this? |
| 17:39 |
MTDiscord |
<_devsh_> irrlicht doesn't have explicit buffers, add them |
| 17:41 |
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| 17:41 |
MTDiscord |
<_devsh_> having no explicit IreferencCounted object that maps to a glBuffer like ITexture maps to glTexture is really stone age stuff |
| 17:42 |
MTDiscord |
<_devsh_> requires GL 3.1 or GLES 3.2 😢 https://www.khronos.org/opengl/wiki/Buffer_Texture |
| 17:43 |
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| 17:43 |
MTDiscord |
<luatic> Yeah but IIRC 95% of our users have that? I'd hope maintaining inferior CPU skinning for the remaining 5% should be affordable. |
| 17:44 |
MTDiscord |
<_devsh_> you're still thinking small |
| 17:44 |
MTDiscord |
<_devsh_> you're supposed to completely replace shader uniforms/setConstants |
| 17:44 |
MTDiscord |
<_devsh_> which memcpy to UBO or Buffer Texture |
| 17:45 |
MTDiscord |
<_devsh_> but remember, just because a device doesn't have a GLES 3.1 or 3.2 feature, doesn't mean it doesn't have the feature as an extension |
| 17:46 |
MTDiscord |
<_devsh_> so collect extension string reports not only GLES/GL features! |
| 17:49 |
MTDiscord |
<_devsh_> ok this is ridiculous |
| 17:51 |
MTDiscord |
<_devsh_> actually looks like GLES supports SSBOs (desktop GL 4.3 feature) more widely than Buffer Textures (desktop GL 3.1 feature) |
| 17:52 |
MTDiscord |
<luatic> well, i gotta get some work done now (unrelated to luanti), i'll return to this and read the rest later. |
| 17:53 |
MTDiscord |
<_devsh_> worst case use a UBO like a read only SSBO, create crapton of 16kb or 64kb blocks, then worry about binding the right one and not having one drawcall's uniforms straddle the 16/64kb boundary |
| 17:54 |
MTDiscord |
<_devsh_> and just maintain a ring/pool of UBOs to reuse/respec between frames |
| 17:55 |
MTDiscord |
<_devsh_> ------- also do you have a "blackhole render" mode ? |
| 17:55 |
MTDiscord |
<_devsh_> (its basically a "skip every drawcall" switch) |
| 18:44 |
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| 19:26 |
Guest85 |
hello |
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BuckarooBanzai |
!seen gpcf |
| 20:51 |
MinetestBot |
BuckarooBanzai: gpcf was last seen at 2022-04-05 15:39:43 UTC on #minetest |
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