Hello,
until now i have made some blender objects for NoLimits, mostly some buildings. I have added some basic meshes like cubes, cylinders, spheres, text etc., changed and combined them. Later i have added some pictures for texture maps. I have selected each mesh, changed to edit mode, selected all or some faces and clicked "unwrap". In a second window i have the UV-viewer, i see selected faces on UV-surface. Now i select a picture as UV-map, scale, rotate and translate it until it fits to the faces of the mesh. When i change back to object mode, i see the faces with the UV-maps when i use the texture display mode. In solid display mode i see all objects as shiny grey surfaces.
I can export this as DAE-file, import it to NoLimits and add it as scenery object. First it is completely white, i have to select it and open the nl2sco editor. Now i cann assign to each material a material file, for the first time i have to open the material editor, add the UV-image file, set reflection, opaque or transparency etc. When finished, i delete the white object and relaod it, now i have the object with correct surfaces.
But when i import some other 3D-files, i cannot use UV-maps. Sometimes the meshes have materials and not UV-maps, i do not know how to change them to UV-maps. So i can only use the materials itself and cannot use UV-maps with more detailed textures. A special case is the exported LWO-file from NoLimits from the light pattern generator. I use it to generate a surrounding tunnel of the track, so i can import it to blender and use this as visible guide for designing buildings surrounding the coaster (like "G'sengte Sau" in Tripsdrill, a wild mouse coaster running through and around a castle).
But the mesh from the LWO-file from light pattern generator is totally black in texture display mode of blender. It is very difficult to see the dimensions relative to the building i make. But i was not able to put a UV-map on it, also i was not able even to change the color from black to another color. I can select mesh, change to edit mode, click "unwarp" and adjust selected faces in UV-viewer as i can do with other meshes (e.g. add->mesh->cube). But surface remains black while the cube gets UV-map in same blender file...
The only way to edit my building is to use the solid display mode, but i do not see the surfaces. So i have to switch between solid view and texture view and i have to deselect layer with the black track mesh when in texture view.
My question: is it possible to use a imported mesh and use UV-maps on it? Or change a mesh with materials to a mesh with UV-maps? I use blender only the way i have described above, for my own objects i add meshes like cubes, cylinders etc., select deit mode and click "unwrap". Nothing more, i do not render with blender, i only export to DAE-files for NoLimits. Here i select export with UV-maps, not meterials. You can only select one of them, it is not possible to mix it.
Thank you for any hints.
Best regards