I’m new with shaders and I want to recreate this type of hand drawn style of an old map of Paris. So it’s basically outlines and hatch or cross hatch on the faces.
I’d rather use an artistic approach and made textures with all those strokes/outlines/cross-strokes and applied them to different faces of the models, especially because they don’t look like they are mathematically aligned, they are drawn by an artist.
Making a procedural shader for this looks like an overkill and it won’t have the same look and feel.
This renders are possible to do of course but they are very complex and might not look well on a particular building in a particular orientation, they look better on abstract shapes.
It’s relatively easy to make a texture with vertical lines in it and then tile it differently depending on the illumination of the surface (making lines more dense if the surface is darker), I might try it if I have time, but it might look trippy when you rotate it.
Making lines parallel to the edges of a roof can be done through uv unwrapping in the modelling software like Blender but that’s a manual process.
Yes, a shader code is a part of a material setup, you create ShaderMaterial and then create a mesh out of some geometry and the material.
You can have many shader materials and mix them with different geometries to make various models.
Yes, I can prepare multiple textures in order to use them automatically but I can’t make all building since it’s very large map in the end. It’s 20 panels like this one. Actually, I need to build myself a tool, like a world builder for a video game.
If every building is unique then it’s gonna be a lot of work but if you make a roof panel, texturize it up to your liking and then reuse it in as many roofs as possible then you only need to do it once or twice. Same with wall panels windows and everything. Video games might have many buildings but they are all built out of not-so-many-parts (and textures). You can scale/rotate parts, assemble them differently to produce larger variety of models.
