When comparing ShaderMap 4 vs Substance Bitmap2Material, the Slant community recommends Substance Bitmap2Material for most people. In the question“What are the best programs for making height maps, normal maps, and/or other maps?” Substance Bitmap2Material is ranked 4th while ShaderMap 4 is ranked 10th. The most important reason people chose Substance Bitmap2Material is:
B2M generates any output that you may need from a single image automatically (base color, normal, metallic, roughness, ambient occlusion).
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Pros
Pro Node-driven map generation
Shadermap specializes in generating multiple maps using nodes. Changes to one node can then be propagated to other nodes.
Pro Bake texture maps from 3d models
This program can bake texture maps from 3d models from a high poly to low poly. Not many similar software has this feature.
Pro Generates several outputs from a single image
B2M generates any output that you may need from a single image automatically (base color, normal, metallic, roughness, ambient occlusion).
Cons
Con Expensive compared to similar software
While the software is great at what it does, it comes at a higher cost than most software that does similar things when it comes to generating normal maps.
Con Comes at a price
Sets you back over 100 dollars.
Con Not a complete tool
B2M will only allow you to create a normal map from an existing image. You cannot create a custom texture from scratch with it.