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Nvidia's RTXGI (Ray Traced Global Illumination Solution) Available on Unreal Marketplace; Usable on all RT-Enabled GPUs/Consoles

ILikeFeet

ILikeFeet

DF Deet Master
Banned
Oct 25, 2017
61,987
works with 4.27. I assume there will be a UE5 version at some point too. works on all RT enabled gpus including consoles



SDK download (for usage in other engines)
developer.nvidia.com

RTX Global Illumination (RTXGI)

Scale computation of global illumination with GPU ray tracing.
developer.nvidia.com developer.nvidia.com

UE Marketplace
www.unrealengine.com

NVIDIA RTX Global Illumination in Code Plugins - UE Marketplace

NVIDIA RTX Global Illumination is a scalable solution that computes multi-bounce indirect lighting without bake times, light leaks, or expensive per-frame costs.
www.unrealengine.com www.unrealengine.com

lots of videos on it



youtu.be

NVIDIA RTXGI Unreal Engine 4 Plugin: Lighting Fundamentals

In part four of this multi-part video walkthrough, we’ll delve into some lighting scenarios and interactions between RTXGI and the other systems of Unreal En...
youtu.be youtu.be
youtu.be

NVIDIA RTXGI Unreal Engine 4 Plugin: Infinite GI

In the final part of this multi-part video walkthrough, we will look at an in-development feature of RTXGI called Infinite Scrolling Volumes or ISV’s for sho...
youtu.be youtu.be
 
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Sirhc

Sirhc

Hasn't made a thread yet. Shame me.
Member
Oct 27, 2017
6,093
Oh snap, here's hoping we see a ton of this in upcoming games, RT global illumination looks so damn good.
 
RoboPlato

RoboPlato

Member
Oct 25, 2017
6,845
Is this real-time GI or is this the method Nvidia has for enhancing baked probe accuracy with RT?
 

brainchild

Independent Developer
Verified
Nov 25, 2017
9,516
I'm pretty excited to implement it into my project! Still have lots of optimizing to do...
 
Sacrilicious

Sacrilicious

Member
Oct 30, 2017
3,515
Based on this article, it seems like a key focus was to decouple lighting from the game engine's frame rate (updating less frequently to increase performance).

RTXGI's architecture allows it to run asynchronously to the game engine itself. What this means is it can update real time lighting calculations at a different frame rate than the game itself.

This allows game developers a ton of opportunities to tweak the game's performance numbers purely by changing how many times global illumination gets updated. (Say you want to run your video game at 60 FPS, but only update your ray traced GI at 30 FPS.)
Click to expand...
Click to shrink...
 
OP
OP
ILikeFeet

ILikeFeet

DF Deet Master
Banned
Oct 25, 2017
61,987
Rtxgi is usable on gpus that aren't RT-compatible, but you lose dynamism



The DLSS plugins got updated to add softening support to the sharpness slider

And RTX Reflex is now natively integrated into UE4.27
developer.nvidia.com

New NVIDIA Updates for Unreal Engine Developers | NVIDIA Technical Blog

Updates include improvements to Deep Learning Super Sampling, RTX Global Illumination, RTX Direct Illumination, and NVIDIA Real-Time Denoisers.
developer.nvidia.com developer.nvidia.com
 
Patitoloco

Patitoloco

Banned
Oct 27, 2017
23,714
It's always nice to see when this technologies are made easily available to devs, seems like it's super plug and play so awesome!
 
Grug

Grug

Member
Oct 26, 2017
4,657
So for us less technically literate people, does this mean better looking ray tracing or ray tracing with less of a performance cost?
 
JahIthBer

JahIthBer

Member
Jan 27, 2018
10,475
Doubt it will be used much, performance hit will be too high on RDNA2 & you can achieve similar results with other GI methods.
 
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