What is procedural texture blender?
Procedural texturing makes use of mathematical formulas to generate textures. This is nice because it can be used to make relatively nice looking textures without external images which are very temperamental where you put them. These textures are obviously generated within Blender itself.
What is a procedural texture used for?
These kinds of textures are often used to model surface or volumetric representations of natural elements such as wood, marble, granite, metal, stone, and others. Usually, the natural look of the rendered result is achieved by the usage of fractal noise and turbulence functions.
How to create procedural textures in the editor?
In this post I’m going to show you how to create procedural textures inside the editor. While in the following example we will generate a 1024 x 1024 texture using random RGB values, the same approach can be used with different generation algorithms to achieve your goals.
How is the Patten generated in procedural texturing?
Some complex pattern is painted on the surface of a flat sheet of paper, and the paper is then laid on the surface of walls. In CG, the patten applied to the surface of an object, can either be an image but it can also be generated using some sort of mathematical equation. The second technique is called procedural texturing.
How to generate a texture using random RGB?
While in the following example we will generate a 1024 x 1024 texture using random RGB values, the same approach can be used with different generation algorithms to achieve your goals. This post was written using 4.22 version of the engine so you may have to modify the following code in case you’re using a newer version.
What are the coordinates of a texture image?
Texture coordinates range from 0 to 1 in the x and y axis (remember that we use 2D texture images). Retrieving the texture color using texture coordinates is called sampling. Texture coordinates start at (0,0) for the lower left corner of a texture image to (1,1) for the upper right corner of a texture image.