Didn’t he say near the end of the (superb!) video that it doesn’t run on them? Just after he shows that it’s broken on Radeons.
Sorry, I missed that part. Thought it could be a DXR 1 versus DXR1.1 sort of thing.
right that. Only runs on Vulkan for now. However it seems that the Vulkan version of the game, which you can select in the menus, has a lot of glitches even on nVidia GPUs, that's why I asked.
The game uses VulkanRT API already, maybe Intel doesn't support it yet?
this is where I got the info
www.intel.com
Vulkan alone disables VulkanRT, I think. Maybe this why it's full of glitches?
Are people talking bounces specifically, or general ray recursion? In traditional raytracing, you trace numerous recursions ('bounces', although some are transmission through rather than reflection off) up to a set limit accounting for a maximum number of reflections. When that iteration count is hit, you terminate with a fudge factor. This works in most cases but not transparency, where glass generates many, many recursions. A trace through a wine glass to a reflective (polished wood) surface would be a ray to the glass surface, ray to other side of the glass surface, ray through contents/space inside the glass, ray through the other side of the glass, ray to the wood surface, and reflected ray. Additionally, the ray to the inside of the far side of the glass will also have reflections of rays passing through the glass material. 4 bounces would definitely be limiting; IIRC 7 was a reasonable minimum. Something like looking through a window at a glass of water in a diner would need a lot more iterations. Where the recursion threshold was reached, you'd have artefacts based on the termination state. eg. returning black from a terminal recursion would see black pixels where there should be a reflection or transmission.
No, it does go dark, you can easily do that in Quake 2 RTX and Minecraft RTX.
You say that but that statement goes against the account of a former Nvidia employee ...
I think that @trinibwoy means It is easy from the perspective that ray tracing allows you to do it "elegantly" by doing something with the rays being shot when they hit the portal.
the art style of the game is what it is, looks like an industrial environment, never found it attractive -one of the reasons I didn't touch the original Portal-. Tbh I usually don't find attractive those games inspired in cities like GTA or Cyberpunk, although I like games like Gotham Knights or Spiderman.
Is that defined within the engine parameters for surfaces? I mean the estimated absorption of a specific surface? Or is it generic at this time?
