Union Bytes Painter is described as 'Allows the creation of 2D sprite and low res textures with color, normal, height, roughness, and metallic maps. Sprites and textures can be edited using multi-channel mode in the 2D or 3D space' and is an app. There are three alternatives to Union Bytes Painter for Windows, Linux, Mac and Steam. The best Union Bytes Painter alternative is Adobe Substance 3D Painter. It's not free, so if you're looking for a free alternative, you could try Agama materials.
Comprehensive 3D texturing tool offering advanced brushes, smart materials, real-time rendering, and versatility for both photorealism and stylized designs, making it an ideal choice for artists and designers to create lifelike, detailed assets with lighting and shadow effects.
Armor paint is a standalone software for 3d texture painting in PBR. It is entirely GPU based, and supports windows and linux.
Agama materials is software for creating PBR materials and painting 3d models. You can create materials and use them for painting models, or you can use pre-made textures. Simple creating of procedural materials.
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