How to improve Caustics in Unreal Engine 5.1 with Path Tracing | TUTORIAL

[@jackywong4481]

NvRTX Caustics branch 5.1 offers realtime performance of RT caustics as well as the entire RT translucency solution.

[@drawwithnightbuzzer]

I had no ideea that was implemented now in 5.1, I thought they bailed on that project.😳

[@contemplatiopatagonia]

The glass of water looks really nice! How do you achieve that glass material photorealisticly?

[@drawwithnightbuzzer]

Check out my old glass material tutorial.

[@yannik4889]

I would love an update on this. Especially since I'm not sure, but I don't think there is any dispersion added to the glass with this method? I'm personally very interested in caustics with dispersion as that would enable me to do very realistic gemstones.

[@drawwithnightbuzzer]

Yeah, I would like to have dispersion as well, but as far as I know, it doesn't exist in unreal at the moment.😮‍💨 Also, they really need to update the caustics, as they take too much time and are not super sharp and accurate. Also it would be nice if you could apply the effect on which object you want, not just everywhere... Other software like Corona or Luxcore do them nicer and faster. Still love unreal😩

[@davesturchcgi]

Have you tried it without the denoiser on? You may get some better sharper caustic reflections that way.

[@drawwithnightbuzzer]

Not really, I'm not sure how they'd turn out without it, because in the preview rendering, they seem to have some sort of a glowing appearance. But now I'm curious, so I'll check that.

[@karolosinski7571]

Thanks for the video! What is your GPU?

[@drawwithnightbuzzer]

Glad you enjoyed it. I have an RTX 2060 super.

[@karolosinski7571]

@@drawwithnightbuzzer damn! that is pretty fast for being 2060 SUPER...btw I am coming from RTX 3090 using Vray... can't wait to start switching to UE5

[@ozkanfurkanceyhun4812]

U are best 👍

[@hotsauce7124]

Is there a way to use "Light Profiles" to get those star light shafts around the light?

[@drawwithnightbuzzer]

I'm not really sure what you mean. Are you talking about the lens flare effect?

[@lkajdshuha]

Hey! Does this not work in 5.3? Not getting the same result. Great tutorials btw!

[@drawwithnightbuzzer]

Hello. It should work properly in newer versions as well. What do you mean by different?

[@karlblumstein8396]

nice job ;) thx

[@allinonekushal]

nice 😍

[@mine_raidz1514]

How did u make the water material?

[@drawwithnightbuzzer]

I made it just like the glass material, but changed the refraction index.

[@mine_raidz1514]

@ kk thanks

[@mine_raidz1514]

@ to what tho? 1.333? Ive heard that number being used before

[@drawwithnightbuzzer]

yes, that one is for water, and 1.52 for glass.

[@mine_raidz1514]

@ gotcha thanks 😊

[@hotsauce7124]

Thank you

[@drawwithnightbuzzer]

"but" and "now" counter?🤣🤣🤣