Since Ray Tracing is a requirement to run Indiana Jones: The Great Circle, a change has been merged into RADV (AMD Vulkan driver) for Mesa to get it working on older AMD GPUs.
The request from developer Natalie Vock noted:
Various people have been playing Indiana Jones: The Great Circle with RADV_PERFTEST=emulate_rt on GFX9/GFX10. RT support is required to launch the game, and performance is okay even with emulation, so enable it by default to make the game playable for everyone running older (GFX8-10*) GPUs.
*This includes GPUs released all the way back in 2014 covering the Volcanic Islands, Polaris and Vega series. So that's the likes of the Radeon R9 285, Radeon RX 480 and Radeon 520/530 + Radeon RX 530/550/570/580.
As of 15 hours ago, the change has been merged into RADV and so it should be available in the upcoming Mesa 25.1 release. This means the game will be playable on some pretty old GPUs, although performance may not be amazing, at least it will work now.
Mesa 25.1 is due for release potentially sometime around May 7th. That's when the final release candidate is scheduled, which may turn into the final release.
Source: GitLab, posted into our Discord.
Article taken from GamingOnLinux.com.
tadzik 4 days ago
It's the first I'm hearing of the term "GFX(\d+)"
Liam Dawe 4 days ago
kit89 4 days ago
CatKiller 4 days ago
What is GFX10/9/8 in this context? Which "older GPUs" does this affect exactly?
GFX8: GCN3 (Volcanic Islands) & GCN4 (Arctic Islands/Polaris)
GFX9: GCN5 (Vega)
GFX10.1: RDNA (Navi 1)
GFX10.3: RDNA2 (Navi 2)
GFX11: RDNA3 (Navi 3)
GFX12: RDNA4 (Navi 4)
Last edited by CatKiller on 10 Apr 2025 at 8:07 am UTC
emphy 3 days ago
I am curious what the performance on this older hardware is, I imagine it's not running the ray-tracing?
Performance on vega64 is 50-60 fps at 720p medium, 5700xt over 70fps at 1080p medium. From what I gather, it is running the global illumination, but not the more performance-destroying path tracing stuff.
Source: https://www.tomshardware.com/pc-components/gpus/amd-rx-vega-64-runs-indiana-jones-and-the-great-circle-at-well-over-30fps-in-linux-with-radv-driver
dpanter 3 days ago
performance is okay even with emulationEven with a Radeon R9 285, really? Doubt... I'll need a definition of "okay" here. Just getting it running at all is a significant achievement in its own right.
Even with a Radeon R9 285, really? Doubt... I'll need a definition of "okay" here.
See this Wikipedia page: https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units
The Radeon R9 285 is Tonga, and so are the R9 380 and 380X. Tonga is one of the earliest GCN 3 chips, so yes it has the necessary fp16 support. (Though, keep in mind that all the other GPUs in the R9 200 and R9 300 series are older chips that don't have fp16 support.)
That said, I don't think anyone tested this game on anything older than Polaris, so there may be things other than fp16 which may be broken.
brokeassben 3 days ago
Shmerl 2 days ago
mrdeathjr 2 days ago
Another payment pass lower by the desk from jensen (curiously early releases dont have raytracing mandatory)
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