From the course: 3ds Max: Rendering with Arnold

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Surface relief with bump mapping

Surface relief with bump mapping - 3ds Max Tutorial

From the course: 3ds Max: Rendering with Arnold

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Surface relief with bump mapping

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- [Instructor] Bump mapping is a rendering effect to give the illusion of texture or roughness on a surface. The roughness parameter in a physically based material, such as Arnold Standard Surface, serves a similar purpose. However, material roughness simulates surface imperfections on a microscopic scale, whereas bump mapping is appropriate for patterns that can be seen with a naked eye. Darker areas of the bump map appear as recessed areas in the shader, and the actual object geometry is not effected by a bump map. It's merely a shading effect. Bump mapping works a little differently in Arnold than it does with other 3ds Max materials. We need to run our bump map texture through an intermediate node before sending it to the material input. This is an extra step that we don't need to take with 3ds Max materials. However, Arnold handles bump mapping much better than 3ds Max materials. It's a long story, but the short…

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