Can you explain every cycle shader in plain English?

Can you explain every cycle shader in plain English?

Whilst Cycles Nodes offer almost you limitless control over a materials, many users struggle to understand it’s labyrinth of options. Which is why this post dares to do the impossible: explain every Cycles shader in easy to understand, plain English.

What should the rotation be in the cycle shader?

Goes from 0.0 to 1.0 and rotates from 0 to 360 degrees. Usually you’ll want to keep this between 0.0 and 0.5 (180 degree rotation, looks the same) Basically, the Tangent controls what axis is used to skew the reflections. Use the Tangent node to choose which direction to use.

What does ashikhmin Shirley do in Blender?

Ashikhmin-Shirley was added fairly recently, and seems to be a sort of middle-ground between the two. It’s worth noting though that you’ll see no change in their appearance from a Roughness: 0 value. What it does: Behaves exactly the same as the Glossy shader, but skews the reflection in one direction.

What’s the difference between a glossy and diffuse shader?

Choose between Diffuse and Glossy – the difference is simply that diffuse is a view-independent component (the appearance of a particular point on the surface doesn’t change when the camera moves around), and the glossy is view-dependent. Choose the size of the circle shapes – usually a large size is used for Diffuse, and a smaller one for Glossy.

Is there a light direction vector in cycles?

In Cycles, and particularly for cycles shaders (SVM and OSL), all vectors are light vectors! It’s just that some vectors contribute with more light than others to a particular direction (the incoming vector). Blender Internal Render, the OpenGL render and the BGE allow access to the light vector.

What does index of refraction do in Blender?

Simulates tiny bumps and scratches on the surface, which can create the appearance of frosted/sand-blasted glass. The Index of Refraction controls by how much the light is bent as it passes through this surface, as well as how visible the reflections are.

What’s the difference between cubic and Gaussian shader?

There is very little difference between the two options (Cubic and Gaussian), however measured data is usually fitted to the Gaussian function (see: NVidia, Arnold, Matt Heimlich ), and Cubic gives us an additional “Sharpness” option. Controls how far light can scatter through the surface.

What does the texture blur slider do in Blender?

What the Texture Blur slider controls is how much of the blur is mixed in with the original texture, so on 0.0 you have your ordinary crisp clean texture, and on 0.5 you have half of your clean texture, and half of the blurred version fading in on top. On 1.0, you can only see the blurred texture.