C4D save selected Objects / Tags

If you have distorted, a see-through-effect or just a strange view behaviour of your mesh in substance painter you should check your polygon-normals. They can cause an error if their direction is reverse. Painting should also be producing only errors, also with a correct uv-layout.

Instead of trying to model the knots yourself

I have no idea why or any better solution until now, but if you are experiencing that your materials are only white in the octane liveviewer you can try to change the projection-style of your material from (standard) uvw-mapping to spherical mapping (or any other type) in the c4d attribute window. Looks like this is…

some macro photos of a paper book as reference for material creation. high-res-download: https://stefaneder.at/wp-content/uploads/2025/macro_paper.zip

I have never used before a railspline in a sweep-object … so here is how it works. This is a sweep object with a regular profile-spline and a spline for the extrusion and its deformed because the profile rectangle is trying to get along with the b-spline and it looks kind of messy . thats…