Ray Tracing Global Illumnation Mod for GTA V

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Mystery_Writer

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#1  Edited By Mystery_Writer
Member since 2004 • 8324 Posts

EDIT: for those that were underwhelmed by the first video, here is another video showcasing ray tracing but with Natural Vision and ENB.

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#2 Calvincfb
Member since 2018 • 0 Posts

*Yawn*

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Ant_17

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#3 Ant_17
Member since 2005 • 12935 Posts

Wow, it became brighter. Maybe show a game like Minecraft to impress me.

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Mystery_Writer

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#4 Mystery_Writer
Member since 2004 • 8324 Posts

@Ant_17 said:

Wow, it became brighter. Maybe show a game like Minecraft to impress me.

:)

really not seeing the GI difference?

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Kali-B1rd

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#5 Kali-B1rd
Member since 2018 • 2241 Posts

That... was underwhelming to be honest, was expecting something more significant.

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Mystery_Writer

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#6 Mystery_Writer
Member since 2004 • 8324 Posts

lol, ok here are some quick ray traced minecraft screenshots to compensate on underwhelming you guys :)

if that didn't help (btw, RT is dynamic, not lightmaps)... then nothing I can do to persuade you :)

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rzxv04

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#7 rzxv04
Member since 2018 • 686 Posts

Why does he remove DoF in the footage that has no RT?

Lighting does look better special how light bounces in covered areas.

Maybe they can cheat it by using traditional AOs and different lighting but I guess the advantage of having some for of RTs would be have less involvement?

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Mystery_Writer

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#8 Mystery_Writer
Member since 2004 • 8324 Posts

@rzxv04 said:

Why does he remove DoF in the footage that has no RT?

Lighting does look better special how light bounces in covered areas.

Maybe they can cheat it by using traditional AOs and different lighting but I guess the advantage of having some for of RTs would be have less involvement?

I noticed the DoF too.. dunno why he removed it.

Also, you're right, using ray tracing in game engines should, in theory, make the whole development process less involved.

I posted pics from minecraft ray tracing. There are no baked lightmaps in those pics, the lighting is dynamic and change during the day without any effort needed to be there from a designer.

It's difficult to make a case for ray tracing, especially when newer titles often do a good job replicating ray traced global illumination, reflections and shadows with baked lightmaps and reflections.

I think at the moment, minecraft and quake 2 rtx are the better examples for making the case that ray tracing has the potential to bring older titles to life with a small shader patch.

And btw, I do see good potential for that GTA V indoor footage. As the indoor footage already looks good despite the shader used in that video (qUINT_rt.fx) is currently in alpha.

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Ant_17

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#9 Ant_17
Member since 2005 • 12935 Posts

@Mystery_Writer: Sorry dude, but maybe use a game that doesn't have baked in ray tracing.

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BassMan

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#10  Edited By BassMan
Member since 2002 • 10728 Posts

@Ant_17: Some scenes look much better. Look at the flat diffuse lighting vs. the GI....

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#11 Ant_17
Member since 2005 • 12935 Posts

@BassMan: Yeah,but not as noticeable as Minecraft. Hell the GTA4 real life mod looks better than this.

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#12  Edited By BassMan
Member since 2002 • 10728 Posts

@Ant_17 said:

@BassMan: Yeah,but not as noticeable as Minecraft. Hell the GTA4 real life mod looks better than this.

Real Life mod looks great, but it is modding a lot more than just the lighting. Several upgrades in that mod. Also, Minecraft and Quake 2 are doing proper ray tracing as opposed to just a ReShade shader.

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#13 Ant_17
Member since 2005 • 12935 Posts

@BassMan: Well, that's the thing. It's just fixing up existing code. The game is a bad example. GTA5 last gen and this gen have a bigger difference, but this doesn't show anything aside from boosting lighting that already was coded to imitate it. Your 2 pics even show a drop in focus on the side. The stuff on the table is blurry and washed out because of the brightness.

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#14  Edited By BassMan
Member since 2002 • 10728 Posts

@Ant_17 said:

@BassMan: Well, that's the thing. It's just fixing up existing code. The game is a bad example. GTA5 last gen and this gen have a bigger difference, but this doesn't show anything aside from boosting lighting that already was coded to imitate it. Your 2 pics even show a drop in focus on the side. The stuff on the table is blurry and washed out because of the brightness.

That is just depth of field effect.

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#15 Ant_17
Member since 2005 • 12935 Posts

@BassMan: It's put to trick you into thinking it looks different. Focus on the center where most of the things are with a light boost while the sides degrade.

Like i said, GTA5 is a bad example for this. I'm sure it will work better on another game.

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#16  Edited By BassMan
Member since 2002 • 10728 Posts

@Ant_17 said:

@BassMan: It's put to trick you into thinking it looks different. Focus on the center where most of the things are with a light boost while the sides degrade.

Like i said, GTA5 is a bad example for this. I'm sure it will work better on another game.

I am not sure what you are getting at. The centre window is the source of the light. Naturally there will be light falloff as objects are further away and sides of objects that are not facing the source will be darker. There is way less depth to the objects in the scene and lighting is so flat in the first screen.

Anyway, I think it is a worthwhile free upgrade to the game. Can't complain much about it.

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#17  Edited By Ant_17
Member since 2005 • 12935 Posts

@BassMan: It doesn't do much, that's what i'm getting at.

And how will this look in the actual game, with it's sped up time? You can see with the 3 cars how the sun spot moves on the ground. How will every shadow look when you're moving around and shadows just slide around you?

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#18  Edited By BassMan
Member since 2002 • 10728 Posts

@Ant_17 said:

@BassMan: It doesn't do much, that's what i'm getting at.

And how will this look in the actual game, with it's sped up time? You can see with the 3 cars how the sun spot moves on the ground. How will every shadow look when you're moving around and shadows just slide around you?

The day/night cycle is sped up in that video to demonstrate the real time light bounce on other objects. Notice how the colours of the cars are bouncing on to the other objects? That is impressive. While playing the actual game, the sun light source will not move that quickly.

Real time lighting and shadows can be distracting in some games. The Forza Horizon games are a great example of this. The real time shadows in those games refresh at a slow rate and it looks jumpy and distracting. Again, I don't know why you are shitting on this particular mod.

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EducatingU_PCMR

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#19 EducatingU_PCMR
Member since 2013 • 1579 Posts

This is really impressive, only dumbos will deny it, huge difference.

I guess it will become cool for some peeps here once the next-gen conslows do a gimped version of it lol

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#20  Edited By KungfuKitten
Member since 2006 • 26840 Posts

I really like it. The way the artificial light gets overtaken by the daylight in the apartment shot. And the way the color of the car disperses in the final car shot. And the way things beneath that bridge are not just predetermined to be bright or dark but you can tell it determines to where the light goes.

It's funny that you can see also, that they really tried a lot of tricks to approximate good lighting in the original. Like the reflection on the table and all that.

I think it's still impressive regardless of how far they have gotten without raytracing. Shaders and consequently lighting has always been a major contributor to making a game look exceptionally good or bad. I do wonder how much of this tweak in existing games I would notice while playing the games, but it looks more impressive to me than say a 2k to 4k resolution change, or 100 to 144 fps change. This and the Minecraft one are making a case for raytracing.

I imagine that a future title developed with raytracing in mind means they can utilize things that would have taken a lot of work to fake before, or that wouldn't have looked good. I think the differences will become more apparent. And I also think this can be used for sound. I don't know if much has been said about that. But semi-realistic bouncing of sound (and hopefully at some point also its deformation) can contribute greatly to a sensation of presence in the game world.

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#21 VFighter
Member since 2016 • 5342 Posts

Am I supposed to be impressed or something?

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Howmakewood

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#22  Edited By Howmakewood
Member since 2015 • 5974 Posts

Looks very meh. There's great visual mods for gta v, this isn't one of 'em.

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#23 Jag85
Member since 2005 • 13668 Posts

@Ant_17 said:

Wow, it became brighter. Maybe show a game like Minecraft to impress me.

Ray tracing is about realistic lighting and reflections, not about the brightness level.

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PC_Rocks

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#24 PC_Rocks
Member since 2018 • 2592 Posts

Meh, who cares about mods when Dreams released in early access. /sarcasm

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warmblur

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#25 warmblur
Member since 2017 • 3171 Posts

That GTAV mod really doesn't do ray tracing justice at all, I find this old GTA4 graphics mod much more impressive.

Loading Video...

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#26 rzxv04
Member since 2018 • 686 Posts

@BassMan said:

@Ant_17: Some scenes look much better. Look at the flat diffuse lighting vs. the GI....

It does. How long does it take to "bake" something like that btw? Would it take 3x longer for the artist if they didn't let RT do it?

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#27 SuperfluousReal
Member since 2019 • 361 Posts

Ehh a bit meh TBH.

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Mystery_Writer

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#29 Mystery_Writer
Member since 2004 • 8324 Posts

@warmblur:

Here is how ray tracing shader looks like with Natural Vision and ENB

Loading Video...

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#30 SuperfluousReal
Member since 2019 • 361 Posts

@Mystery_Writer said:

@warmblur:

Here is how ray tracing shader looks like with Natural Vision and ENB

Loading Video...

Unplayable frame-rate though.

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#31 Mystery_Writer
Member since 2004 • 8324 Posts

@Ant_17:

It took me a long while to appreciate global illumination in Metro Exodus. It was difficult for me to see the difference between baked and actual GI. But once you play around with it for a while (I recommend trying the minecraft SEUS shader), I started seeing the potential.

btw, I posted another GTA V demo showcasing Ray tracing GI but with other mods NaturalVision + ENB.. check it out, I'm interested to see what you think.

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#32 Macutchi
Member since 2007 • 6904 Posts

emperor's new clothes effect

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#33 Steppy_76
Member since 2005 • 2730 Posts

The real jump will come when different materials come in to play. The biggest difference between games and photorealism is the lighting. If you understand what your looking for this is impressive and just scratching the surface.

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#34  Edited By Mystery_Writer
Member since 2004 • 8324 Posts

@superfluousreal said:
@Mystery_Writer said:

@warmblur:

Here is how ray tracing shader looks like with Natural Vision and ENB

Loading Video...

Unplayable frame-rate though.

ya of course, the game takes a huge hit having the RT shader enabled.

Not sure about other GPUs, but you'd get only around 70-120 fps on RTX 2080 TI EVGA FTW3 on stock (no overclocking) + Threadripper 1950x on creative mode (not gaming mode).

The above numbers only when enabling RT shader alone (without the other shaders), on resolution 3840x1080, that's on a Samsung super ultrawide 32:9 aspect ratio monitor.

However, this shader currently doesn't take advantage of RT Cores (which is far more superior once developers target those dedicated RT cores).

Currently the advantage of not using the RT cores is you can run it on any Nvidia or AMD GPU (doesn't require RTX)

Global illumination is the most taxing computationally of all the 3 types of ray tracing.

The second most taxing is Ray Traced Reflections, and the least taxing is Ray Traced Shadows.

All GPUs could do ray tracing, however the advantage of the dedicated RT cores on RTX cards is just to make that process faster.

Anyway, aside from performance (cause hopefully more affordable RT enabled GPUs will be available for PC gamer in the future), what did you think of the potential seeing old PC games (like quake 2, minecraft, GTA, etc..) getting RT treatment?

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#35 Mystery_Writer
Member since 2004 • 8324 Posts

@Steppy_76 said:

The real jump will come when different materials come in to play. The biggest difference between games and photorealism is the lighting. If you understand what your looking for this is impressive and just scratching the surface.

Very true, the minecraft shader showcase what you stated really well.

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#36 SuperfluousReal
Member since 2019 • 361 Posts

@Mystery_Writer said:
@superfluousreal said:
@Mystery_Writer said:

@warmblur:

Here is how ray tracing shader looks like with Natural Vision and ENB

Loading Video...

Unplayable frame-rate though.

ya of course, the game takes a huge hit having the RT shader enabled.

Not sure about other GPUs, but you'd get only around 70-120 fps on RTX 2080 TI EVGA FTW3 on stock (no overclocking) + Threadripper 1950x on creative mode (not gaming mode).

The above numbers only when enabling RT shader alone (without the other shaders), on resolution 3840x1080, that's on a Samsung super ultrawide 32:9 aspect ratio monitor.

However, this shader currently doesn't take advantage of RT Cores (which is far more superior once developers target those dedicated RT cores).

Currently the advantage of not using the RT cores is you can run it on any Nvidia or AMD GPU (doesn't require RTX)

Global illumination is the most taxing computationally of all the 3 types of ray tracing.

The second most taxing is Ray Traced Reflections, and the least taxing is Ray Traced Shadows.

All GPUs could do ray tracing, however the advantage of the dedicated RT cores on RTX cards is just to make that process faster.

Anyway, aside from performance (cause hopefully more affordable RT enabled GPUs will be available for PC gamer in the future), what did you think of the potential seeing old PC games (like quake 2, minecraft, GTA, etc..) getting RT treatment?

I think it is excellent but we need more capable hardware before i will even consider it myself.

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#37 JasonOfA36
Member since 2016 • 1321 Posts

Hoo weeh, I hope RT GI gets optimized for every game engine soon. It's much easier than baking fake GI.

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#38 Mystery_Writer
Member since 2004 • 8324 Posts

@superfluousreal said:

I think it is excellent but we need more capable hardware before i will even consider it myself.

The RTX 2080 TI is good enough at the moment (albeit expensive). You get above 60fps having all those shaders enabled without even utilizing the RT cores.

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#39  Edited By BoxRekt
Member since 2019 • 2071 Posts
@EducatingU_PCMR said:

This is really impressive, only dumbos will deny it, huge difference.

I guess it will become cool for some peeps here once the next-gen conslows do a gimped version of it lol

it will be cool when the games aren't forced to drop to 15frames per second. Only a dumbo would hype a feature that cripples the actual gameplay performance of a game like a dolt.

PC clowns try to criticize smooth playing console games at a locked 30fps yet you can virtually count the frames in those videos used to hype this feature.

Another thread made by you hypocrites recently was to hyped playing PC at 144fps and saying you couldn't go back to 60fps after experiencing over 100 fps, but NOW look at you guys?

You flip floppers need to decided on your fanboy narrative power or performance because you guys are all over the place hyping a feature for demonstrations running in the teens because you think it looks good for PC.

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#40 Ant_17
Member since 2005 • 12935 Posts

@Mystery_Writer: Yeah, the second video does show it much better even without showing the original.

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#41 pyro1245
Member since 2003 • 5359 Posts

Cool!

I love seeing these mods.

It's amazing what people can do even without access to the original source.