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DoF gathers samples in a two-ended cone with the apex on the focal plane. He's just reordering how he processes those samples, so that he accesses screen space data in a more coherent fashion. For example, a vertical slice would be gathering all samples directly above/below the target pixel. If you process this vertical slice for all pixels within a tile (before moving onto the next angular slice) then you'll get nice data access coherency.

@@iestynne I see, I am reading the Bend Studio screen space shadow and thinking it may be where the idea comes from. Thanks!

The trick is that you can sort of view raymarching as a kind of root finding algorithm: you're trying to find the distance t along the ray that returns an intersection through iterative search. So, step along with raymarching until you hit a rough intersection, which gives you a minimum and maximum t value that your intersection occurs within, then bisect to find better bounds, then use the secant method to find the actual intersection distance t.

cringe

Clearly havent played it or your are trolling hahaha, you must lead a boring ass life :D

@@warlorddk2070 it's easy to pirate and fun like 2 minutes. Delusional

Game is too hard to win actually, died 3 times in a row in under 10 minutes and had to uninstall.

@@dr.angerousquoth The Big Lebowski, “That's just like, your opinion, man” Presumptuous to project from a sample size of one to the subjective view of everyone. Hate to break to you, but you are not the main character of the universe.

It's garbage

@dr.angerous Who's an edgy boy.

41:00 .... So it's just trying to push art for art's sake but they mentioned that from the start so ok

Or Townscaper? I guess the fun part for the developer is working on the technology and art etc but turning it into a "proper game" they don't find fun or interesting so they just go all in on making a cool tech demo.

@thesenamesaretaken by all means yes it's a grind and can be thankless so on the other side of the coin it's amazing to see the uptake on this particular product.. which hopefully sets a visual quality and user experience bar for those RTS and RPGs

I'd reccoment you to watch materials from Threat Interactive, talking about nanite and other UE5 tech. The situation is worse than many imagine.

​@@wydualiterally clicked on this comment intending to recommend those exact videos. it's nasty stuff, we really shouldn't be having to rely entirely on indie studios to do any innovation in optimization at all.

Lumen runs on decade old hardware. Not exactly abandoning old hardware.

I bet nvidia/amd/intel areninvolved in ue5 development to push more high end hardware because quite frankly budget gaming is dead because of this Epic's blunder of an engine

@@draco6349 Hey, just some precision on UE5 vs custom rendering techniques : keep in mind all throughout the presentation Tomasz explains that they didn't go for the "common" rendering methods - the extremely specific scope and nature of the game. The reason why they rolled out some of these innovative solutions is because they knew exactly what was needed and what wasn't. Outdoors only, limited map size and entity count, complete control over meshes and LODs, camera POV and gameplay interactivity... UE is a generalist game engine that "works" almost out of the box in every scenario which comes with severe drawbacks. I hate Epic's marketing disregarding and even hiding those drawbacks as well, but I just wanted people to know why it's an inevitability and to avoid bashing UE's rendering without getting the bigger picture. Thank you for reading.

I think it's pretty obvious that vulkan works better than dx on Linux, but I don't think it helps very much with shader compilation issues, you still manage all the shader compilation yourself. Dx11 actually didn't have this problem as hard because of how it left the problem of pipeline bloat to the drivers. The main reason people do dx12 support as far as I can tell is mainly that they're already used to dx11, so it's more familiar for them to work with, but it's also closer to the API in Xbox and also provides PIX as a debugging tool which is a lot better than render doc.

@@deprilula28 Every single time I start a DX12/11 game there is shader stutter, but not if im using Vulkan ..thats on Windows when a game has the option and on Linux, if I play the same game on Windows and play it with DX11/12 and then go to linux the Linux version has no stutter but the windows version is crap, that leads me to believe Vulkan is better, if they resolve the shader compile stutter with DX11/12 that would be great.

let me guess your gpu: AMD

Heh, Bink dev here. Supergiant did this for a *long* time and was the source of some of the more interesting technical challenges we had with Bink as a result! Pyre on the PS4 used BinkGPU (GPU-side decoding) with compute shaders and had (IIRC, it's been almost 10 years!) over 20 videos playing simultaneously in some cases. It was not just characters in game, but also pretty much anything animated on the world map. As you might imagine, very different workload from our usual fare!

Obligatory: ACES is not a tone mapper it is color space system. AgX works with ACES color space. Saying ACES is overused is like saying the MP4 video container is overused

@@benny_dryl To be even more pedantic back, ACES is an entire color system, composed of color spaces (AP0 for archival, AP1/ACEScg for mastering), and a suite of output mastering transforms (in ACES v1.0 these were the SDR/HDR ODTs, in ACES v1.1 they were replaced by the combined Output Transforms). When we talk about the tonemapping part of things, we're referring to a transformation sequence that goes from your render space to AP1, then using the ODT/OT on the other side. Usually this whole chain is replaced with a pre-parameterized LUT, like in the Sucker Punch approximation. These ODT/OT transforms are also infamous for many reasons, most famously for the controversial "sweeteners" that can embed a bit of a look. AgX (or things like Tony McMapface) are a replacement for that entire transform chain. AgX was mostly designed with sRGB primaries in mind, though you can run it in BT.2020 or AP1... though I would be careful if you use AP1, that fake D50 whitepoint is a doozy IMO. When I was investigating this about a year ago, the modes labeled "ACES" in Unreal and Unity did not agree on their color transforms, my recollection was that Unreal did proper chromatic adaption for the D50 whitepoint, and Unity did not.

Do you know if there's a quirk to the ACES -> sRGB tonemapper used in game engines that would cause the "notorious 6" color clamping? I work in animation and have never had that issue, if anything I find the transform we use to be a very good split between perceptual and a filmic response, especially when it comes to highlights.

Thanks, no we did not see specific issues using bindless on Intel Arc.

He probably thinks at that same speed ! :O

It's to make up for all his stuttering.

probably nervous, happens

Me when I put yt videos on 1.5x speed

@@VoxelMusic all of his stuttering happens because he talks at 1.5x speed

Sounds like a good number, given the channel is brand new 😄. Quality content, got a subscription from me

I know people are building similar things for Blender using geometry nodes. I don't think anybody has yet built a full equivalent, but should be possible. I think a big part of why there is no exact equivalent in Blender is once you learn to use geometry nodes you end up making your own generator for your own style so there isn't a one size fits all thing.

I think fixed point would help here a lot. Precision would be 1/16th cm so just store 4 bits for fraction and then 27 for integer and 1 sign bit. Would only allow up to 1k km though but if you extend this to 5-byte (provided there's a free byte somewhere) you could already handle up to 350k km or 87M km if you find 6 bytes somewhere (per float). Could save some bytes and fixed point should be easier to calculate (though have to be converted to floats after). I'll probably see if I can emulate IEEE754 doubles and compare vs fixed point

Nani!?

@@medicalwei he's referencing the increasingly common conception that UE5 is poorly optimized