What is fog color in VRAY?
Fog color – Specifies the attenuation of light as it passes through the material. This option allows you to simulate the fact that thick objects look less transparent than thin objects.
What is Refraction in vray?
Refraction controls how an object lets light through.
What is Brdf in VRAY?
BRDF stands for bidirectional reflectance distribution function. These controls let the material’s reflectivity be guided ultimately by the angle from which the object surface is viewed.
What is Fresnel IOR?
Every material has a Fresnel value which is indicated by its index of refraction (IOR). This value shows how much of the ray is reflected off the surface versus how much is absorbed. Surfaces viewed at grazing angles reflect more of the incoming light compared to surfaces facing the camera.
What is reflection and refraction in VRAY?
Reflection controls the qualities of the outside surface and Refraction controls the qualities of the thickness of the material.
What is Fresnel reflection VRAY?
“Fresnel reflections – checking this option makes the reflection strength dependent on the viewing angle of the surface. Some materials in nature (glass etc) reflect light in this manner. Note that the Fresnel effect depends on the index of refraction as well.”
What is Fresnel render?
Fresnel is the term used to describe how the light you see reflects at different intensities based off of the angle you are viewing it from. For example, if you are standing over a pool looking straight down at the pool, you will not see a lot of reflections in the water.
What is a V-Ray material?
Some typical examples that use this V-Ray material component are: glass, water, transparent plastic, crystal, oil, etc. The amount of Refraction can be controlled by a number, Map, or Texture. It can be grayscale or colored, but it is recommended to stick to grayscale for more realistic results.
How does the fog color work with thicker panels?
A few things to keep in mind when using Fog Color; effect of the fog color differs based on the thickness of your panel. The thicker the panel, the deeper the color will appear to be (as shown in the example below). You can see how the refraction color is deeper with larger thickness.
What color should I set the reflectivity of my glass?
Lets set Diffuse Color to Black as its commonly used when creating glass materials. Let’s leave everything else as is. Reflection affects the visual reflectivity of your material. White color (255, 255, 255) means 100% reflective like a mirror and Black (0,0,0) means no reflection.
What is the best value for refraction gloss?
A max value of 1 will keep your refraction sharp, while a lower value will result in blurry refraction. Decreasing this value can increase render time, however, values between 0.8 to 1.0 seem to work perfectly. Here are some different Refraction Glossiness values starting with 1.0 for sharp results down to .75 for a frosty effect.
