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What is the roughness map?
What exactly does the roughness map represent? As I understand it, roughness is the inverse of glossiness, which determines how much white light the material will reflect. In the blinn-phong reflection model, the variable that represents a material’s glossiness is the specular exponent.
Is a bump map the same as a roughness map?
Many assume Roughness and Bump are the same thing but did you know they are two completely different material properties? We often rely solely on bump textures to enhance our materials in KeyShot but the same texture maps you’ve been using for Bump can also be used for Roughness!
What is AO texture map?
An Ambient Occlusion (AO) map creates soft shadowing, as if the model was lit without a direct light source, like on a cloudy day. Typically the AO map is blended into the metalness or specular map, instead of being stored as a unique texture, because this saves memory.
What are the different texture maps for?
Texture types Color Maps. The most common type is diffuse, the colors seen on the model. Transparency Maps. Transparency maps, also known as opacity, are used to cut out parts of a surface, usually for alpha blending. Bump Maps. Bump maps are 2d grayscale maps that modify shading of geometry, typically used for fine detail of a surface.
What is a normal texture?
Normal textures. A “normal texture” looks like this : In each RGB texel is encoded a XYZ vector : each colour component is between 0 and 1, and each vector component is between -1 and 1, so this simple mapping goes from the texel to the normal : The texture has a general blue tone because overall, the normal is towards the “outside of the surface”.
What is texture coordinate?
Texture Coordinates. Texture coordinates, also called UVs, are pairs of numbers stored in the vertices of a mesh. These numbers are often used to stretch a 2D texture onto a 3D mesh, but they can be used for other things like coloring the mesh (see Vertex color), controlling the flow across the surface (see Flow map), etc.
What is an UV texture?
UVs (pronounced U-VEEZ) are two-dimensional texture coordinates that reside with the vertex component information for polygonal and subdivision surface meshes. UVs exist to define a two-dimensional texture coordinate system, called UV texture space. UV texture space uses the letters U and V to indicate the axes in 2D.