Texturing and Shading - For texturing I’ve been using the Total Texture collection. For the wall I took the base layer from the Total Texture 1, some dirt from Total Texture 5 and 2 and mixed them in Photoshop following the UV layout... same for the tires.
For the sky Giovanni started from a base from the Total Texture 15 and continued adding details, painting clouds and little planets.
For the carPaint and tires material I decided to go with layered materials... this gave me the ability to add dirt, scratch and all the little details I wanted with the minimum effort. The texturing is based mostly with Total Texture 5 & 8 because they’re full of dirt masks... after importing them in Photoshop I reduced the details to make them cartoonier.
and I make a lot of masks to control the layering. The shaders are quite simple, lots of fresnel effect for glass and metal and then simple shader trees layered with a mib_color_mix node.

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