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Dmitry Karpukhin

@skx_doom • 7,134 subscribers

Unreal Engine Developer/Tech Artist. Made Sky Creator, SSFS, Blockout Tools and more. https://t.co/aJihpxFQkP

Shorts

My "Light Propagation Volume" plugin for #UE5 is now featuring Cascades system! It adds much longer light bounce distances, than what could be previously seen in the UE4's LPV implementation. Still some work to do, performance-wise as well :) But it's shaping up very nicely.

My "Light Propagation Volume" plugin for #UE5 is now featuring Cascades system! It adds much longer light bounce distances, than what could be previously seen in the UE4's LPV implementation. Still some work to do, performance-wise as well :) But it's shaping up very nicely.

48,135 Aufrufe

I'm not an expert on Lumen, but I don't like this.

I'm not an expert on Lumen, but I don't like this.

43,067 Aufrufe

Fab Friday Mega Sale is up! All of my products are 30% off right now.

Fab Friday Mega Sale is up! All of my products are 30% off right now.

26,463 Aufrufe

By the way I almost always disable "Screen Traces" of Lumen. But if you want more horror content, here's how it looks with car lights in a night lighting conditions. (UE5.5, Epic settings, no AA, 100% render resolution, Lumen with Screen Traces enabled)

By the way I almost always disable "Screen Traces" of Lumen. But if you want more horror content, here's how it looks with car lights in a night lighting conditions. (UE5.5, Epic settings, no AA, 100% render resolution, Lumen with Screen Traces enabled)

14,465 Aufrufe

Videos

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Proof of concept: Sky Occlusion via LPV extension. Super low res and low detail, but temporally stable. Perhaps could be used instead of DFAO... Gives more like a feeling of a shadow on a scene, than something detailed. SSAO could be still used for contact details or so 🤔

Proof of concept: Sky Occlusion via LPV extension. Super low res and low detail, but temporally stable. Perhaps could be used instead of DFAO... Gives more like a feeling of a shadow on a scene, than something detailed. SSAO could be still used for contact details or so 🤔

Dmitry Karpukhin

32,647 Aufrufe • vor 21 Tagen

I've recently released the Light Propagation Volumes (custom GI plugin) for #UE5 LPV is an algorithm of resolving the diffuse light bounce from the perspective of the sun in world space (firstly introduced in 2009 by Crytek). It's non-temporal, performant and lightweight.

I've recently released the Light Propagation Volumes (custom GI plugin) for #UE5 LPV is an algorithm of resolving the diffuse light bounce from the perspective of the sun in world space (firstly introduced in 2009 by Crytek). It's non-temporal, performant and lightweight.

Dmitry Karpukhin

42,196 Aufrufe • vor 1 Monat

"Screen Space Fog Scattering" is now completely compatible with unreal's Height Fog, so the blend is really nice! On/Off at the end of the video, so you can see the difference. Also used Sky Creator to quickly setup the lighting. #UE5 #gamedev #shaders #fog

"Screen Space Fog Scattering" is now completely compatible with unreal's Height Fog, so the blend is really nice! On/Off at the end of the video, so you can see the difference. Also used Sky Creator to quickly setup the lighting. #UE5 #gamedev #shaders #fog

Dmitry Karpukhin

159,014 Aufrufe • vor 3 Jahren

So I made it look even worse (which is better). Continuing tests of found footage/VHS aesthetics in #UE5

So I made it look even worse (which is better). Continuing tests of found footage/VHS aesthetics in #UE5

Dmitry Karpukhin

63,216 Aufrufe • vor 2 Jahren

A short demo of the upcoming new 'Multi-Layered Volumetric Clouds' feature for Sky Creator. This is still work in progress though... #UE5 #techart #shaders #clouds #vfx

A short demo of the upcoming new 'Multi-Layered Volumetric Clouds' feature for Sky Creator. This is still work in progress though... #UE5 #techart #shaders #clouds #vfx

Dmitry Karpukhin

43,828 Aufrufe • vor 1 Jahr

I got something crazy for today - custom GI from a plugin in #UE5!! This is super rough and unoptimized sketch, but it's already faster than Lumen, though of course it's muuuch less accurate. Here I'm just imitating Large Scale AO using Global SDFs, no sun light bounces yet.

I got something crazy for today - custom GI from a plugin in #UE5!! This is super rough and unoptimized sketch, but it's already faster than Lumen, though of course it's muuuch less accurate. Here I'm just imitating Large Scale AO using Global SDFs, no sun light bounces yet.

Dmitry Karpukhin

24,070 Aufrufe • vor 1 Jahr

Continuing my custom GI experiments - here's a "Light Propagation Volume" prototype in #UE5 (from a plugin)! It's unoptimized right now, it has just a single volume and the reflected light looks a bit strange, but still!

Continuing my custom GI experiments - here's a "Light Propagation Volume" prototype in #UE5 (from a plugin)! It's unoptimized right now, it has just a single volume and the reflected light looks a bit strange, but still!

Dmitry Karpukhin

15,695 Aufrufe • vor 8 Monaten

That's right there is a promising start 👀

That's right there is a promising start 👀

Dmitry Karpukhin

14,063 Aufrufe • vor 8 Monaten

The idea with averaging several soft shadows have worked! And thanks to SDF, it's possible to have super soft long shadows! The demonstrated effect is simulating dynamic global ambient (sky) occlusion, rendered only on the GPU. Also, very temporally stable, outside of SDF lods.

The idea with averaging several soft shadows have worked! And thanks to SDF, it's possible to have super soft long shadows! The demonstrated effect is simulating dynamic global ambient (sky) occlusion, rendered only on the GPU. Also, very temporally stable, outside of SDF lods.

Dmitry Karpukhin

17,885 Aufrufe • vor 1 Jahr

Finally figured out Cloud Material Density Sampling by a compute shader directly. You have no idea how many hours I've put into this... 😂 But the benefits are crazy - you can fast async sample clouds for lightnings placement or for the general gameplay purposes.

Finally figured out Cloud Material Density Sampling by a compute shader directly. You have no idea how many hours I've put into this... 😂 But the benefits are crazy - you can fast async sample clouds for lightnings placement or for the general gameplay purposes.

Dmitry Karpukhin

16,851 Aufrufe • vor 1 Jahr

Testing a silly (or genius?) idea - accumulate custom shadow maps in a buffer to make some sort of Global AO. The implementation or the sample pattern could be better of course, this is just a rough sketch. It's pretty fast too, since you can do just one scene capture per frame.

Testing a silly (or genius?) idea - accumulate custom shadow maps in a buffer to make some sort of Global AO. The implementation or the sample pattern could be better of course, this is just a rough sketch. It's pretty fast too, since you can do just one scene capture per frame.

Dmitry Karpukhin

12,418 Aufrufe • vor 1 Jahr

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