On Oct 19, 2017, at 11:57 PM, Shubham Rathore <shubhamrathore1...@gmail.com>
wrote:
Hi,
I was wondering if we have a provision for a medium or an object with
variable index of refraction. I need to model a scene where I want to study the
nature of images that are traced through a medium which has a variable index of
refraction i.e. the ior varies with distance from an assumed origin. For ex. if
we want to render a mirage; the ior changes for the part of the medium close to
the road.
We do not. You'd probably want to either define a new shader in
src/liboptical or work on integrating Appleseed with librt. As a new
liboptical volumetric shader, the implementation would likely be similar to
BRL-CAD's procedural grass shader. [1]
Cheers!
Sean
[1] See slides 22-23 at https://brlcad.org/w/images/2/2c/Optical_Shaders.pdf
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