backdrop not in same position in ray trace

[kevinman4404]

What can I do to keep the backdrop from moving when I do a raytrace? In the example I show, it is a spherical panorama with adjustments to the tilt made in the camera settings, however the settings are not kept when doing a raytrace which causes it to move.

 

In the two images I have attached, the one where the backdrop is placed correctly according to the settings is the Full Camera view. The other image is the raytrace.

 

x14

 

[robdyck]

First, try setting the camera Tilt Angle to 0 and then inspect both views. This will result in the least amount of variation between the 2 views.

The difference in the backdrop postion is due to the Index of Refraction of the glass material. A different refraction value will also affect the appearance of the position of the backdrop.

[kevinman4404]

Hmm I tried changing the tilt to zero (it was already roughly zero) and significantly changing the index of refraction on the middle window and it had no effect. I am quite sure it is a problem of settings, but I don't know how (or if it is possible) to get the backdrop adjustment settings from the camera settings to apply in the ray trace.

 

To be more clear, the spherical panorama, when imported, by default, looks tilted due to the curvature of the image, until I make manual adjustments in the "spherical panoramic backdrop" dialogue box (see attached picture). That is what I meant by tilt. For example, by adjusting the "vertical max" slider, I managed to fix the problem, but when I do the ray trace, it is like it ignores the setting and reverts to default. So the manual adjustments to the backdroom only seem to work in the Full Camera but not in the ray trace.