Using bump maps in Cinema 4D Materials can be a great way create the illusion of bumps and roughness on a surface, without actually changing the geometry and therefore increasing the object's complexity. To achieve a fully believable render, you could use a displacement material and distort the geometry, however this can greatly increase render times.
With the new Parallax Bump Map feature of Cinema 4D R18, you can create the illusion of height and depth depth in bump maps, without greatly increasing render time, as the original geometry is not actually distorted. Parallax bump maps are a great way to use materials to achieve create the illusion of displaced height and depth, without increasing render time.
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To take a deeper look at new features in Cinema 4D R18, be sure to check out some of these additional articles focusing on other updates and new features for R18:
• Top 5 New Features of R18
• MoGraph updates and new Effectors for R18
• Voronoi Fracture, a New MoGraph Feature
• Inverted Ambient Occlusion
• Working with the new Thinfilm Shader
• Using the new Shadow Catcher for 3D Compositing
• Working with the new Substance Materials Workflow
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