Problem: Identical V-ray options, Identical SketchUp scenes, different sized renders

[danno484]

LINK TO IMAGE OF ISSUE: http://dnkaye.com/vrayproblem.JPG

I have looked across the internet far and wide and not yet found any solution to this problem.

I've attached an image of 2 renderings of the same exact scene of a model. The only difference is that in the first, the SketchUp window was maximized, and on the second, the SketchUp window only took up a portion of my monitor. The renderings come out at the exact same size (2,500 x 1,366) and the exact same perspective and view, but they are at different zooms.

Therefore, when rendering on different sized monitors, the renderings come out at different levels of zoom, and thus need to be manually scaled in Photoshop until they match perfectly to be overlayed.

When using V-Ray for SketchUp 1.6 beta, i was able to compare the logs from both renderings, and they are exactlyl the same except for one number of the line labeled 'Scene bounding box' in the V-Ray progress window:

Render A: Scene bounding box is [5932.78,6447.93,-32]-[8896.55,9191.27,760]
Render B: Scene bounding box is [5932.78,6447.93,-32]-[8896.55,9191.27,916.14]

Any help would be appreciated.

LINK TO IMAGE OF ISSUE: http://dnkaye.com/vrayproblem.JPG

[dkendig]

did you have override viewport checked in your options?

[danno484]

Yes, thanks, that's how I know the resolution is fixed (2,500 x 1,366).

http://dnkaye.com/vraysettings_options.jpg

[danno484]

did you have override viewport checked in your options?

danno484
Yes, it was checked, that's how I knewthe resolution is fixed (2,500 x 1,366).


here the output settings I used incase it helps.
http://dnkaye.com/vraysettings_options.jpg

[tashko.zashev]

Hi,

For this case i think is better to turn on "Override focal lengt" and "Specify film width", then set them with values that corresponds to your needs (render view).
V-Ray will render always the same zoom no matter what SketchUp window size is set. The limitation for this approach is the missing option that will allow us to view the final render frame.

[danno484]

Hi,

For this case i think is better to turn on "Override focal lengt" and "Specify film width", then set them with values that corresponds to your needs (render view).
V-Ray will render always the same zoom no matter what SketchUp window size is set. The limitation for this approach is the missing option that will allow us to view the final render frame.

Thank you very much tashko.zashev. That seems to solve the problem, although like you said it doesn't offer an accurate preview of the render in the SketchUp scene.

[tashko.zashev]

Yes, this is a limitation.
We need to implement an option where safe frames borders show which portions of a viewport will be visible when render.
I will create new feature request about it.