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Witcher 3 with Raytracing (Marty McFly's RT Shader)
- Thread starter Paul
- Start date
Is ray tracing like a fancy name for piss filter? Half-kidding. It looks nice in a way but always make things more yellow and bright.
It's...okay. Looks gorgeous inside the temple, not so much outdoors. Being a post processing shader it doesn't have the same impact as real GI, and is often way over saturated in colour bounce to the point of inaccuracy. The green hue on the buildings in one shot is too bright, and the shader falls to bits the moment Geralt steps on snow.
With tweaks, if possible, it could be great though.
With tweaks, if possible, it could be great though.
Raytracing is basically simulating the path light rays would take in a scene, making for a way realistic lightning in games.
That's not RT, just a shader that uses depth data and the image to give a RT look.
Look at the start of the video, the swords are masking "RT" stuff in the background.
It also does not know light direction so in some scenes it can produce weird things.
The part in the snow is way too much.
It's really good looking in screenshots, but not good in movement IMO.
Look at the start of the video, the swords are masking "RT" stuff in the background.
It also does not know light direction so in some scenes it can produce weird things.
The part in the snow is way too much.
It's really good looking in screenshots, but not good in movement IMO.
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Yeah, but what about the FPS?
It basically simulates light rays from light sources bouncing of materials, like in real life, instead of just an artist creating an approximate interpretation of how a scene would look if it's lighted in a specific way. Also this means you don't need effects that try to fake the behaviour of light and shadows like ambient occlusion anymore because, well you have light that behaves like the real thing now.
It basically simulates light rays from light sources bouncing of materials, like in real life, instead of just an artist creating an approximate interpretation of how a scene would look if it's lighted in a specific way. Also this means you don't need effects that try to fake the behaviour of light and shadows like ambient occlusion anymore because, well you have light that behaves like the real thing now.
OP
OP
Agreed, but this GTA 5 showcase rocks my socks
Can't wait to test it out with my 2080Ti.
https://www.resetera.com/threads/reshade-mod-general-discussion.115392/
Lots more examples in the existing thread, too.
There have been some simple implementations of this, even back on PS3 (TLOU flashlight will bounce colora off a wall) but real implementations will actually cast rays and calculate where light is hitting, how much is bouncing, etc a few times.
In the case of this shader, it is using depth information available in screen space (so no lights outaide of the camera's view) to calculate the light bounces. Path tracing is more accurate of a term.
Lots more examples in the existing thread, too.
Light rays bounce in real life, illuminating things that direct lights in 3D games dont normally affect.
There have been some simple implementations of this, even back on PS3 (TLOU flashlight will bounce colora off a wall) but real implementations will actually cast rays and calculate where light is hitting, how much is bouncing, etc a few times.
In the case of this shader, it is using depth information available in screen space (so no lights outaide of the camera's view) to calculate the light bounces. Path tracing is more accurate of a term.
It's just the nickname the guy who made the shader picked.
He also uses "RT" and "Ray Tracing" badly as it's not RT at all.
This is interesting. Might be a nice thing to have for next playthrough.
In some ways it looks better but also a little less natural looking if that even makes sense, sorry.
He is the one who made the shader you can use with Reshade. Think you have to support him on Patreon to get the current alpha build, though.
I've seen the name attatched to a depth of field effect in Reshade as well.
It's when the wight bouwnce awound the woom wike in weal wife.
Those lambos in the hangar under the moving sunlight. And those apartment interiors ... just amazing. But the ghosting around Geralt on the OP video is a bit distracting. Still a cool demo.
It is height field ray tracing. ;)
Pretty sure he has been very clear about that.
There is only so much you can do with post process with access to color/depth/normal buffers.
You cannot change rendering pipeline and replacing shadowmaps.
It really depends on the game. The Witcher 3 already has great lighting, so it's not as much of an improvement.
Not sure I'd understand that at 5...
Anyway screenshots it looks good, but not the best game to show off this.
Thanks all for the explanations! I am not fluent in english so thats why i ask the 5 year old way :p i get it now ty ty ty ty ty! 😁
One of the biggest boosts is for reflections. Mirrors and shit will actually work. And you'll see reflections and colour bouncing off anything reflective, even tiny things.
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It is definitively weird. The outside shot, where flora is green and become orange with ray tracing on, is really weird. It is not realistic at all.
Put on a blindfold and throw a ball at a wall, the ball is your ray. Imagine the wall was freshly painted so when the ball hits the wall the paint gets stuck on the ball. You then pick up the ball and determine the color of the wall without looking at the wall yourself. All your information comes from the ball... there, raytracing, the ball is your new God now!
Because it's essentially screen-space plus depth buffer and is therefore super approximated. DF explained it in their recent Crysis video.
That Witcher 1 music.
AWWW YEAH. I wouldn't mind if Adam Skorupa is involved in the Netflix project.
Mod looks cool as well.
AWWW YEAH. I wouldn't mind if Adam Skorupa is involved in the Netflix project.
Mod looks cool as well.
Really?
TW3 had bad lighting even at release, today is just ugly... all looks so flat and the shadows have zero nuances, they are all black.
When I think at "great lighting" I'm imagining Horizon Zero Dawn and RDR2.
...
It is tracing rays, in screen-space. There are no ifs and or buts about that. He fully acknowledges that is different than tracing into world space representations or triangles directly on his patreon site. It is not like he is a charlatan or something.
Also he is professionally notable, a classy programmer and human being.
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Everyone should view this shader as a better replacement for SSAO - if you tweak down the amount of bounce and occlusion it will literally just provide more than accurate SSAO + colour bounce which most SSAO does not even have.
OP
OP
Is that GTA V mod easy to install? I don't mind paying for it but not if it's an absolute PITA to get working.
I would love to see Nvidia have team add actual RTX support into older partner games like Wild Hunt, Metro Redux, etc. Imagine them adding True GI and Reflections and or Shadows to games like this. And because they're older titles, they're more feasable performence wise.
Would be a great way to promote their hardware and at the same time the strength of PC as a platform.
Would be a great way to promote their hardware and at the same time the strength of PC as a platform.