Process: Unfold UVs in Maya ➡️ Use Substance Painter to paint the UV map ➡️ Import the UV map back into Maya ➡️ Link images to different attributes on the objects.
I utilized the UDIM function in Maya, arranging UVs within the range (1~n, 1). The benefit of this approach is the ability to display all models directly in Substance Painter and import them into Maya with textures applied simultaneously. While working in Substance Painter, I paid attention to how different material channels affected the object’s properties, including lighting, base color, patterns, metallicness, bump, reflectivity, roughness, etc.
I exported images from Substance Painter and applied them using Arnold materials in Maya. After adding lighting, the rendering process was completed, resulting in the final visual effect.
Render picture: