Hi all,
I'm using a fisheye cam in Arnold to render a large scene for my VR porject.
I apply several triplanar maps to displacement node to build the environment,
and it works totally fine while rendering in perspective mode.
However, once I switch to fisheye mode with 180° FOV,
the displacement gets disappearing if one object is close to the camera and near the boundary of the picture.
(unfortunately I can't provide the final render. This is how it looks like:
![displacement_gone.png displacement_gone.png](https://forums.autodesk.com/t5/image/serverpage/image-id/1193865iDB8D953E0284A3AF/image-size/medium?v=v2&px=400)
I try different camera settings, and this problem only happens when FOV is larger than 150°.
Also I try rendering another object with a simple 2D displacement map,
it has no problem in 180° FOV fisheye cam.
The below is my camera, triplanar map setting and arnold version info:
![fisheye.JPG fisheye.JPG](https://forums.autodesk.com/t5/image/serverpage/image-id/1193872iE1F5E25D9BBED15F/image-size/medium?v=v2&px=400)
![triplanar.JPG triplanar.JPG](https://forums.autodesk.com/t5/image/serverpage/image-id/1193873i8CE9B3DFC546C997/image-size/medium?v=v2&px=400)
![arnold_version.JPG arnold_version.JPG](https://forums.autodesk.com/t5/image/serverpage/image-id/1193876i5E5E768AE1422D75/image-size/medium?v=v2&px=400)
Does anyone meet this situation before?
It would be appreciated if there is any tip or advice, thanks!