cshenton

8 ms·

1.
by cshenton 2y ago
My experience is that the ecosystem is a mess, have hit winit, wgpu, and countless bevy bugs, iteration times are abysmal, documentation is nonexistent. In the time it would take me to make a game in popular Rust tooling I could build the g
2.
by cshenton 2y ago
You absolutely cannot implement stream compaction “at the speed of native” as WebGPU is missing the wave/subgroup intrinsics and globally coherent memory necessary to do that efficiently as possible.
3.
by cshenton 3y ago
Really lovely. A lot here reminds me of design in Odin lang. Short integral types, no const, composite returns over out params. Big fan of the approach of designing for a single translation unit and exploiting the optimisations that provide
4.
by cshenton 3y ago
Odin is lovely and a great fit for graphics and games programming. I’ve been doing my real time graphics research in it (the CPU parts at least).
5.
by cshenton 3y ago
Absolutely! On a related note, looking for C development jobs is a real pain for this reason.
6.
by cshenton 4y ago
I personally find the experience of writing GPU compute code pretty nice on graphics APIs. The interface is pretty much the same “dispatch a 1-3D set of 1-3D work group indices”. The main pain points vs dedicated compute stuff like cuda is
7.
by cshenton 4y ago
For 3D, use a game engine. Unity, Unreal, maybe Godot depending on your perf requirements.
8.
by cshenton 4y ago
When you look at how much nicer the programming experience is for something like Metal it’s hard to blame them. Think I’d prefer to write 3 backends for Metal level complexity APIs than a single one targeting Vulkan.
9.
by cshenton 4y ago
If someone wants to get into graphics API programming that’s probably a bit too high level, as lovely as it is.
10.
by cshenton 4y ago
I know you mean major desktop platforms, but in terms of market share for real time 3D applications, mobile and console dwarf Mac and Linux.
11.
by cshenton 4y ago
Not faster to integrate it into a build system or compile it though.
12.
by cshenton 4y ago
I suspect (1) is just because Dear ImGui is BYO graphics backend, so it doing lots of clever texture management stuff for lots of images would increase the surface area of that integration which would make it harder to use for most folks.
13.
by cshenton 4y ago
Dear ImGui certainly seems more popular wherever skinning isn’t a priority (though I’ve seen games use it even for user facing UI). It’s become a bit of a Wilhelm scream, love spotting it in the wild.
14.
by cshenton 4y ago
Odin is probably the most productive I’ve been in a language. I went from reading the docs to having a working interactive PBD particle sim in VR via OpenXR in around 48 hours wall clock time. I am currently writing a rigid body engine in i
15.
by cshenton 4y ago
This is completely wrong, the digital art industry is enormous and, mind you, pretty uniformly pissed off that this model has been trained off of their non public-domain work.
16.
by cshenton 4y ago
Another interesting factor. PhD stipends are getting gobbled up by inflation. I wonder how many people will forgo starting a research career because they want to be able to pay rent.
17.
by cshenton 4y ago
What are your egress charges?
18.
by cshenton 4y ago
Why not all of the above?
19.
by cshenton 4y ago
Also worth pointing out that Bayesian methods are the only good option when performing data assimilation into large scale simulators (like epidemic models) which are typically statistically under identified by available data. So this stuff
20.
by cshenton 4y ago
Bayesian statistics gets tonnes of practical use. Software packages like STAN-MC get lots of use in traditional stats/econometric circles, while probabilistic programming languages like Turing, Edward, and PyMC get plenty of use elsewh
21.
by cshenton 4y ago
As someone about to pause an industry career for a PhD, I still think this is good advice!
22.
by cshenton 4y ago
That last one is a good point. The size of the “sweet spot” in an HMD isn’t discussed enough.
23.
by cshenton 4y ago
Quest 2 can overclock to 120Hz can’t it?
24.
by cshenton 4y ago
Oculus is leading the pack in wireless by offering Airplay out of the box. I’d wager that’s part of their vision too. Also the UE5 demo running on a PS5 doesn’t mean that it could push pixels on two screens at the frame rate needed for VR.
25.
by cshenton 4y ago
Even as an enthusiast (5 headsets and counting) I have to agree. There have been several month periods where I didn’t use VR due to driver instability. That being said, body tracking is what made the platform click for me. Hanging out with
26.
by cshenton 4y ago
Dreams doesn’t quite use an octree SDF for its geometry representation. It uses a tree of CSG edits (basically the raw stroke inputs) which is then stochastically sampled (as an SDF) to produce points on the surface that are splatted. Alex
27.
by cshenton 4y ago
Why isn’t imperative event loop programming more widely used? It’s a reasonably common pattern for games networking libraries like Enet, and has the added bonus that you get to design exactly how you lay out the memory of all your in flight
28.
by cshenton 4y ago
Would love to work at a University as a Research Engineer. Would not love to do it for less than I made as an undergrad out of college. Universities can avoid not paying market, but they pay more like 40-50% of market.
29.
by cshenton 4y ago
This is doable on a single core in JavaScript.
30.
by cshenton 4y ago
It is not impressive. This workload is entirely bandwidth constrained and is more a test that your renderer isn’t doing anything stupid.

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