iRacing - Rain. Multithreading and why its important

[@DirkFedermann]

iRacing has been multithreading for multiple years now. The minimum specs for the CPU is a 4 core CPU. Last addition to multithreading would've been the sound engine. Choosing Spa for explaining it wasn't a good thing either. That track hasn't seen a significant update in 2012 Season 3, where they updated the surface shaders. What you've described with the different size gras, is actually a static texture of the wall. Same with the "weathering" of the gantry, it is just a texture. These things are handled by the GPU. Shadows, maybe. That I'm not sure if the CPU is involved in that too much. Reflections, is GPU. What is on the CPU is all the physics, sounds, input handling, etc. Rain will impact all the physics calculations. All we can see, will be some kind of shader and/or texture that is "just" applied to the object. And shaders are rendered/calculated/processed by the GPU.

[@BeauWolff]

That’s great to know. I thought it was only the last 3 or 4 years they had been pushing multithreading. I was trying to keep it as simple as possible hence not covering in depth what actually processed on cpu or gpu. Etc. but thanks for raising the points though. Good info for others.

[@BeauWolff]

Also - note I have modified the description to explain this a little better. Let me know if that makes it a bit more clearer... I did this video as people have been asking me "What is multi threading and how does it help" and I think this is because it is mentioned alot more to aid the rain coming in S2

[@federicocl3164]

Interesting. I wonder why my C indicator goes orange in the rain but my CPU usage according to the task manager is only 20 or 30 %. i9 13900h. 🤔

[@DirkFedermann]

@@federicocl3164 Have you tried regenerating your directx10.ini or whichever you use? That helps a lot of times. Just rename it, so you can always go back, start a test session and change your graphics and replay settings to your liking.

[@MichaelDolances]

Great video very informative!

[@BeauWolff]

Glad it was helpful!

[@mrj3217]

Serious question here. How are plastic, and metal that are raw materials combined to make a computer and computer board/processors take electricity and now I am watching this video??? Raw energy + plastic/metal arranged in different ways = everything computers do???? Please don't say it's code, I know what code is but the question is how can plastic/metal filter raw electricity and somehow it allows us to do everything computers do?

[@BeauWolff]

This is a great question. The plastic is a way to keep the metal path ways separate from each other. The signals are 1s and 0s and are on off type signals for a switch. Code then interprets the signal. But key is the metallic materials are there to conduct electricity signals. The components on the board are then there to help work on storing or using or interpreting the energy signals

[@BuzzLukeYear51]

really liked this video

[@BeauWolff]

Thanks man

[@oftrack_iR]

nice video!

[@BeauWolff]

Thanks for the visit, hope it helped :)

[@mrj3217]

The GTP car feels very undrivable in the rain. I am not a very experienced GTP class driver is this car this bad in reality?

[@BeauWolff]

On this one. - I don’t drive gtp either. But did see another video showing lmp2 going quicker than gtp in a wet race.

[@swedlee]

Can you set your a specific core to run iracing and your wheel device?

[@BeauWolff]

Not that I know. Usually when a program runs it will use a % of the cpu (so some cores may have higher usage than others for that app - but generally it will use all cores (since most multi-core processors are homogeneous) That being said if iRacing is using to much cpu (have the task manager running in the background so you can see this) and the wheel is struggling. Then in task manager cpu usage will be very high overall. Best thing todo is reduce graphics etc in iRacing. But first see if other stuff is using cpu and end those apps (unless they are system ones etc. )

[@christopherdunn8772]

Interesting. You know your stuff....

[@BeauWolff]

Thanks mate.. Hopefully it helped :)