gpss Posted January 23 Share Posted January 23 Hi everyone, I'm working on rendering a transparent glass cup filled with beer using Karma in Houdini (version 20.5.278). I've set up the materials using MaterialX, and everything looks correct when rendering with Karma CPU. However, when I switch to Karma XPU, the glass cup turns completely black. Could anyone help me understand why this is happening and how to resolve it? Additionally, I'd like to know the best approach to render the beer with bubbles inside the glass. Any tips or suggestions would be greatly appreciated! Thanks in advance! Quote Link to comment Share on other sites More sharing options...
AntoineSfx Posted January 24 Share Posted January 24 On 1/23/2025 at 1:45 PM, gpss said: Hi everyone, I'm working on rendering a transparent glass cup filled with beer using Karma in Houdini (version 20.5.278). I've set up the materials using MaterialX, and everything looks correct when rendering with Karma CPU. However, when I switch to Karma XPU, the glass cup turns completely black. Could anyone help me understand why this is happening and how to resolve it? Additionally, I'd like to know the best approach to render the beer with bubbles inside the glass. Any tips or suggestions would be greatly appreciated! Thanks in advance! I can' t replicate, however, I don' t understand where you captured the Base / Specular with respect to the Glass material. It looks like a new definition of a Material , because if it was in Edit Material (right click Material Linker on Glass / Edit Material Network) then dive into it in the Edit Material Node that is created, you would have checkboxes in front of each parameter , and I don' t see them Here is a file that works on my workstation, both in CPU and XPU. Try to render it, and if it works you can find the problematic parameter. If it doesn't then.... We'll see. I see Optix[ Idle], which is good Can you give the specs of the Nvidia GPU you're running ? odforce.topic57907.hipnc Quote Link to comment Share on other sites More sharing options...
kuraski Posted January 28 Share Posted January 28 On 1/23/2025 at 2:45 PM, gpss said: Hi everyone, I'm working on rendering a transparent glass cup filled with beer using Karma in Houdini (version 20.5.278). I've set up the materials using MaterialX, and everything looks correct when rendering with Karma CPU. However, when I switch to Karma XPU, the glass cup turns completely black. Could anyone help me understand why this is happening and how to resolve it? Additionally, I'd like to know the best approach to render the beer with bubbles inside the glass. Any tips or suggestions would be greatly appreciated! Thanks in advance! I believe that this is the best site where you can play slot machines online, because on this site - https://slotscity.ua/slots you can play cool slot machines freely and safely and win real money online! So you should try this site too, because this site is really very cool and high-quality for playing for real money! The black glass in Karma XPU might be due to MaterialX compatibility—check your material settings. For beer bubbles, use procedural textures or particles and tweak IOR/roughness. Quote Link to comment Share on other sites More sharing options...
gpss Posted February 7 Author Share Posted February 7 Thank you very much for your answers. After trying, I think it might be a problem with a specific version of Houdini. I was previously using version 20.5.278, and after upgrading to version 20.5.487, the issue was resolved. Quote Link to comment Share on other sites More sharing options...
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