The Raytracing thread

[CAT-THE-FIFTH]

I thought maybe it would be useful to just have a thread on this,just talking about the tech in RTX,and similar stuff from other companies to do ray tracing,and games which are using it. So just about the tech itself and any implementations.

At least if this thread survives long enough maybe we can look back on the progress over time??

If there is one already(I didn't see one),then the mods please delete.

 

[CAT-THE-FIFTH]

Just to start off:

https://twitter.com/x/status/1034489154774679552

Cyberpunk 2077 has an RTX option.

 

[CAT-THE-FIFTH]

I am and have always been a big proponent of Raytacing and whilst I would love to see a decent thread discussing it, 3 posts in and it already descended into a joke thread

Yeah,can we keep to the tech guys!! Want to just see how this progresses.

 

[CAT-THE-FIFTH]

Found this interesting;

http://on-demand.gputechconf.com/si...man-morgan-mcguire-real-time-ray-tracing.html

A good explanation of hybrid rendering. Also from the end of that talk,some good books on RT in general:

https://www.pbrt.org/
http://dept.cs.williams.edu/~morgan/cgpp/about.xml

The first book won an Academy Award.

 

[CAT-THE-FIFTH]

I called it the "ray tracing" thread and said "RTX,and similar stuff" and that was implied to cover the gamut of general ray tracing stuff.

Edit!!

Edited the OP to make it more clearer(I hope).

 

[CAT-THE-FIFTH]

This is my explanation in very simplified English lol. From What I understand, in Dx12 and Vulkan, that when Ray Tracing is turned on, it calls in the manufacturers specific code/API. Example. For AMD and Vulkan, Ray Tracing turned on, call in Radeon Rays 2. Run scene. It's up to the Radeon Rays 2. instruction set to utilise the hardware as best it can. IF a Nvida card is detected it runs Gameworks.

Ah,OK so RTX is just a kind of a middleman between the Nvidia specific units and the MS raytracing API??

 

[CAT-THE-FIFTH]

That's my take on it at least.

Amongst others. OptiX (NV), Microsoft DXR and Vulkan

Here: https://developer.nvidia.com/rtx

Not quite, it goes hardware < drivers < DXRT < RTX < game

There's nothing stopping game devs developing their own DXRT code but obviously if the hardware vendors have done most of the work for you then you can use their SDK

Ah,OK!

 

[CAT-THE-FIFTH]

AdoredTV has made a very good video about raytracing and path tracing:

This is what the company OTOY is working on with a game engine called Brigade:

https://home.otoy.com/render/brigade/

They are behind the raytracing renderer called Octane which is the first one which was released to the public which ran on GPUs.:

https://en.wikipedia.org/wiki/Octane_Render