Materials coming to Houdini with the wrong settings
planned
David Johnson
I have been trying out Cargo with Houdini 19 (and 20) and it seems that the Materials are coming in with the wrong settings. When compared with the download kits, I have found that the following is causing display problems. The transparency channel (when needed) is not set to 1 but left at zero. The base colour is almost black and going by the download kits it should be closer to white. Currently this means that I have to change all the material settings in order to get the image to render like the views in the Cargo Application
V
Vitaliy Koshevyy
Same Here with Vray in Houdini, The material set up comes in a default setting.
- Roughness map is connected to Diffuse roughness parameter instead of reflect_glossiness and the reflection Color set to 0 by default.
- Instead of normal(tangent) it comes as bump map and the transfer Fuction set to Auto which gives incorrect result once on Normal. Setting it to None fixes the issue.
- Also I notices some materials like glass are not set at all and just have default setting with opacity map connected to opacity channel.
I was able to resolve some of it with GPT writing python script to run over all the Vray Material networks however it would be great to have it working properly out of the box
Rod Sayers
I am still getting textures loaded into Houdini with a base grey colour and reflectivity set at one. It means I have to adjust every texture to get a decent render in Houdini?
Daniel Das Neves
Can someone take a look as to why the geometry and textures don't work correctly when importing into Houdini 2.0 with Vray6.0?
I've been wainting for a reply on this for a while. The texture links are correct and the attribute to the material path is also correct but the textures don't render correctly.
Image: Left is just a quick test importing the geometry manually into a new geometry node and assigning the shaders myself.
Right is how it comes out of Cargo.
David Johnson
I have some additional feedback as I have been trying put the Solaris with the Karma shader with the MaterialX materials. These work much better and appear to have the base colour set correctly, however the glass materials are coming through wrong. At a basic level the reflection image needs to be inverted and sent to the opacity and the reflection value remains at 1.5, however the output will also depend on what the user is after and which render engine you want (Although I am no expert so I might be making a mistake on the settings, But with the default cargo settings for the Karma render plugin, transparent objects are not transparent
Steven Chen
planned
Thanks David! We'll get this sorted.