RTX Remix
RTX Remix is a technology developed by 
Nvidia, designed to introduce real-time ray tracing and advanced graphical enhancements to classic video games. This technology has the potential to be integrated with 
Valve's gaming ecosystem, allowing modders and developers to update older titles with cutting-edge visual effects. By leveraging RTX Remix, classic games available on Valve's platform could undergo a renaissance, offering players modernized visuals while preserving the original gameplay experience.
Incorporating RTX Remix capabilities enables the replacement of textures and models using 
Universal Scene Description and Scene Capture, in addition to introducing features such as PBR, RTX lighting, and RTX reflections. Presently, the utilization of RTX Remix necessitates an NVIDIA graphics card for mod creation. Although support for 
Radeon graphics cards remains unconfirmed, players can still experience RTX Remix mods, albeit without the ability to create them. It is improbable that Radeon graphics cards will be supported in the future.
Warning:It is not known how 
VAC may react to RTX Remix, to be safe remember to always put -Insecure in your launch parameters, this means sadly you can't play on VAC secured servers while using RTX remix in games like 
Team Fortress 2 and 
Day of Defeat: Source, however any non-vac secured servers are likely to work fine.
Note:
Source Engine is one of the best engines for use with RTX Remix due to its accessibility and documentation. [Clarify] However its recommended you download source tools like 
VPKEdit and 
Crowbar and a texture editor like 
GIMP as VALVe engines using proprietary formats. For more tools that may help with your project see Category:Third Party Tools.Note:RTX Remix only works with Direct3D 8 and 9 games with fixed function pipeline (or DX7-DX8 feature level mode).Availability
2022
Portal with RTX2023Portal: Prelude RTXTBD
Half-Life 2 RTX
Hardware Requirements
These are the hardware requirements provided by Nvidia[1].
| Level of Hardware | Operating System | CPU | CPU Cores | GB of RAM | GPU | GB of VRAM | Storage |
|---|---|---|---|---|---|---|---|
| Minimum |  Windows 10 Windows 11 |
Intel I7 or AMD Ryzen 7 | 4 | 16gb | GeForce RTX 3060Ti | 8 GB | 512 GB SSD |
| Recommended | Windows 10 Windows 11 |
Intel I7 or AMD Ryzen 7 (or Higher) | 8 (or more) | 32gb (or more) | GeForce RTX 4070 (or better) | 12 GB (or more) | 512 GB (or more) M.2 SSD |
Note:Despite listing such requirements for the CPU, most RTX Remix games should run fine with newer i3 or i5 CPUs. However when it's come to developing RTX Remix games, a higher end hardware is recommended.Note:For the list of RTX Remix supported games, see this page on ModDB.
References
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