Hence producing a distorted image of its background. Sets how much a ray traveling through the material will be refracted, In addition to the common options given above, the following property controls are available: IOR Index of Refraction. This is all because of the Index of Refraction of glass. You will notice that the background is upside-down and distorted: When you actually look through a plain sphere of glass, It can be deflected from its course according to the Index of Refraction (IOR) (and the Alpha value of each transparent Material hit in between).īut while the ray travels through the transparent object, The first transparent object inherits the colors of its background, If the object is transparent, then the ray continues its path through it to the next object,Īnd so on, until a non-transparent object is finally encountered which gives the whole chain Then the ray takes the color of the object. If the first object hit by the ray is non-transparent, The Raytrace option is only available in the Blender Render and Cycles renderĪ ray is sent from the camera and travels through the scene until it encounters an object.
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