![]() There’s plenty of other considerations like camera angles and render times. An example: use a bump map for wood grain and a displacement map for a brick wall. My general rule of thumb is to use bump maps for representations of subtle texturing and use displacement maps for large representations. Bump maps only affect the surface normals whereas displacement maps affect actual geometry. You can really see the difference when you look at the edges-notice bump maps don’t actually change the geometry of the 3D model. Displacement maps change the physical geometry-bump maps do not. This is the main different between bump maps and displacement maps. That is the 3D model will look like its geometry has been changed but it hasn’t actually. Creating bump maps isn’t always easy or possible and can involve a lot of tweakingīump maps are image files that are used to help 3D software simulate texture without actually affecting a 3D model’s underlying geometry.Bump maps & diffuse maps are very closely related when creating materials.Bump maps can be created in Photoshop by following 3 basic steps.Bump maps and displacement maps work very differently.Bump maps save time in simulating texture effects on 3D models.Step 1: Creating a High Contrast Black & White Version.
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