True Surface Reflections (Raytracing) #2 | Roblox

In this video, I will be showing a much more optimised and nicer looking reflections that works by using raytracing that will set the colour of blurred pixels in the surface guis in the mirrors. If you have any ideas for a video, please leave them in the comments down below. If you enjoy my content, consider subscribing!
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The Grand Development:
www.roblox.com...

[@ycahidmirl4935]

I can smell smoke using that piece of glass :D

[@gdplayrr]

oh fu

[@dextromethorphann]

Macbook pro, i run somethings like this at 40-30 fps, 50 pixels res

[@Seventh_hell]

Crazy how you can do this in roblox, hope roblox does make it easier to make it clearer

[@spicycanjam]

The way I think this works is that it's castings rays for each pixel, each pixel being a Gui frame, when ever a rays hit something it will get it's color which is then relayed to the Gui frames am I correct?

[@Ethanthegrand]

Yes, you are correct. All though i have used SurfacesGuis with image labels that blur the image to give the illusion of higher resolutions (which is a lot more realistic for materials such as metal that don‘t give a clean reflection)

[@spicycanjam]

@@Ethanthegrand I have another question are you making the raycast bounce of surfaces? Since in the thumbnail the Mirror is titled sightly upwards. Wait I think I just figured it out your raycasting from the camera has well right?

[@Ethanthegrand]

@@spicycanjam Yes. I am casting a ray for every pixel on the surface gui and then cast another ray from that mirror with the reflected direction from the first ray and then if it hits something. This technique uses Raytracing and there are heaps of things on the internet that explains how it works. A simple google search should easily answer most of your questions

[@spicycanjam]

@@Ethanthegrand thanks man have a good day

[@pjsangria]

@@Ethanthegrand So it would be laggy if you had a higher numbers of SurfaceGuis? To be a higher resolution

[@silkyz5518]

Bro is literally a pioneer in deving

[@unkoiboi]

your so underrated

[@Crusadezzz]

I can’t wait for somebody to say *You’re

[@jobusch]

*You’re

[@unkoiboi]

@@jobusch brain*

[@unkoiboi]

@@Crusadezzz just happend and it made me VERY mad lmao

[@jobusch]

@@unkoiboi why did you say brain

[@Xizilqou]

I wonder if the newer editableimages would be better for this than blurred imagelabels

[@explosivestudios3920]

I don’t think people understand how insane this is

[@filiprodak]

that reflective cube doe

[@PanchoAnimationsOfficialYT]

Works on Spheres or Meshes? Btw could u make a tutorial?

[@iamyourguy3668]

Your work is amazing I would love to make you a developer for my game.

[@moddedpeople]

This is true ray tracing, not like RoShade... I'd like to know how you made it look blurry

[@GatoShidori]

Cool :o

[@dry6334]

this is super awesome

[@CaptainIce69]

This is insane also i recorded before 3 am and posted it it was a great game cant wait for after 3am lol

[@herman8894]

Interesting
Can you explain how this works?

[@Ethanthegrand]

Its a but hard to explain, but essentially, it uses real time raytracing that i made within roblox to allow true surface reflections. The mirrors themselves just have a SurfaceGui with a bunch of image labels that change colours

[@CopperCrownDummyWhoMakesGames]

Tutorial?

[@dextromethorphann]

@@CopperCrownDummyWhoMakesGames i can try make this
ps: already made that

[@havoklad7616]

that is cool

[@schrimblo]

Any way you could release this to the public, this is super sick

[@unkoiboi]

second wow

[@risinggames8189]

Cool

[@ron133.]

what if a ghost came out of it if you chant bloody mary

[@gigabit6226]

Does this work with textured objects or do parts need to be solid colors?

[@Realm_of_portals4689]

.O.
epic

[@owoshka2427]

To make it clear for everybody. He is using Viewport frame with Surface gui and setting camera angle according to the player's camera angle.

[@Ethanthegrand]

False. No viewport frames are being used. Otherwise reflections in reflections wont work. This uses raytracing. All the surfaces gui has is a bunch of blured pixels

[@owoshka2427]

@@Ethanthegrand Alright, my bad. I will leave this comment, for people to see your small explanation.

[@owoshka2427]

@@Ethanthegrand The only thing I wonder, is how did you replicate shadows.

[@owoshka2427]

Just figured it, I guess. You casted a ray from each pixel on the glass infront, then casted another ray from sun's position and if it hits something before reaching the end point, then you cast a shadow and use 'lerp' to make a darker color.

[@cehroaza7952]

Nicee more content :)

[@ryanluccaferreira5745]

make it like a portal mirror

[@ChraO_o]

this thing works if on water

[@UnnamedA320]

Can you use it with car mirrors

[@Ethanthegrand]

Yeah, but with this method you’d be restricted to a square mirror

[@CaptainIce69]

You should actully make a discord server

[@TalesYeap]

Hhhhmmmm okay but laggy and good work keep up that reflection until realy good

[@TalesYeap]

Tutorial pls

[@zinny6761]

Can we have the game link?

[@cloak1473]

what are your pc specs

[@Ethanthegrand]

In this video, they were;
- 3.4GHz quad-core Intel Core i5 processor
- 8GB DDR3 memory
- NVIDIA GeForce GT 755M graphics processor with 1GB of GDDR5 memory
I was using a late 2013 desktop Mac

[@cloak1473]

@@Ethanthegrand if your gonna want to expand on this or maybe work on ray traced shadows you might wanna upgrade

[@variegatus4674]

can I add you on discord? I wanna know how you done this in detail. just want to have a crack at making something like this myself.

[@dextromethorphann]

I can help you

[@dextromethorphann]

@@nptnc but for what?

[@dankarsedog]

Wouldnt viewport frames work better?