Question

What are the differences between displacement mapping and bump mapping?

Answer 1

• bump mapping only modifies the surface of a piece of geometry, whereas displacement mapping alters the whole geometry in actual
• when using displacement maps to add true relief to a landscape, a bump map can be used to add additional noise to the surface.
• Bump maps are not very resource-intensive and thus is used widely for a wide range of relief work.While displacement maps are not as commonly used because they can be computationally intensive and they tend to like high-resolution geometry to work with.
• Bump maps cannot render corner or edge detail, which makes them problematic in certain situations, for example adding brick detail to a corner edge. Displacement mappings can deeply alter geometry up to an extent level and including edge detail, making them ideal for a much wider range of uses such as terrain creation.
• Bump maps create the illusion of depth and texture on the surface of a 3D model using computer graphics. Displacement mappings create additional detail for your low-resolution meshes.
  BESPLACEMEN
  
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  Let displacement maps do the heavy lifting Use bump maps to add fine details.
  image source: google