viewport aspect ratio >< rendered aspect ratio

[Micha]

Installed the latest version and did a quick test - Octane doesn't match the Rhino render output.

[face_off]

Installed the latest version and did a quick test - Octane doesn't match the Rhino render output.

It looks like Rhino's render output is not matching it's own preview window. I suspect this is because it is using the Vertical or Diagonal FOV of the preview window whereas Octane uses the Horitonal FOV (which you can see is matching between the Rhino preview window and the Viewport). Did you try enabling the safe frame feature of the plugin?

Paul

[Micha]

Paul, that's like all render engines work at Rhino. Please, no workaround, no plugin use (I don't used the safe frame feature), only simple support of the typical Rhino render output. The Rhino viewport is changing the size all over the day, every time the user switch on/off toolbars, ... . So, nobody is using the viewport ratio or wide as reference.

Also don't forget, if you would go the typical Rhino way, than you wouldn't get a different output of the Octane viewport and Octane-at-the-Rhino frame buffer anymore.

[face_off]

Micha - I think you are getting derailed by some odd functionality in Rhino. I have described the issue in the McNeel forum - hopefully a dev can provide some answers. http://discourse.mcneel.com/t/how-to-ge ... ugin/24942

Paul

[v-cube]

Hello Paul,

thank you for the new option to unsync the octane FOV from the Rhino FOV, I have tested it , it works and in principle does what we asked for...

I have to observations:

1. when manual editing the FOV in the octane panel and then opening the octane viewport, the initial picture is not showing the correct FOV ( in my tests it seems that it is zoomed in -> FOV seems to be smaller ) when I then change the FOV e.g. by one degree back and forth the picture "jumps" to the correct + expected appearance. Maybe this hiccup can be cured...


2. In practice I would be great when we could also use the octane focal length node to adjust the FOV, the reason is that I can adjust the FOV in Rhino only through the focal length parameter of the 35mm rhino camera and not view or adjust the FOV directly.

To my understanding FOV and focal length should determine each other... Ideally the focal length used in the rhino camera would mimic the octane focal length (right now this does not seem to be the case e.g. a horizontal FOV of 77,32 / Rhino length length of 30 mm translates to a octane lens length of 22,49985 - please see attached screenshot).

When we have created a rhino viewport with a certain aspect ratio and a certain focal length that we want to use, we could simply take these three values (width, height, focal length ) and dial them in the octane camera settings.
This way we could recreate the initial rhino viewport in octane and be sure that it would not change through any unintentional rhino viewport modification.

I hope I was able to make myself clear – I am not a native speaker...

I think we are almost there


best

Andreas

[face_off]

1. when manual editing the FOV in the octane panel and then opening the octane viewport, the initial picture is not showing the correct FOV ( in my tests it seems that it is zoomed in -> FOV seems to be smaller ) when I then change the FOV e.g. by one degree back and forth the picture "jumps" to the correct + expected appearance. Maybe this hiccup can be cured...

Ah yes - I think the Scale pin is being applied after the FOV. I will fix that.

2. In practice I would be great when we could also use the octane focal length node to adjust the FOV, the reason is that I can adjust the FOV in Rhino only through the focal length parameter of the 35mm rhino camera and not view or adjust the FOV directly.

This should be possible.

I will make these changes in the next release (next week).

Paul

[v-cube]

This should be possible.

I will make these changes in the next release (next week).

thanks! -> very cool!

[frisog]

I'm sorry, but this is still not working. Why is it that I change nothing but the layout of Rhino and still my renders turn out slightly differently. This makes basically Octane Render a useless product.. right?

[frisog]

Why this difference suddenly? Camera not changed..

[face_off]

I'm sorry, but this is still not working. Why is it that I change nothing but the layout of Rhino and still my renders turn out slightly differently. This makes basically Octane Render a useless product.. right?

What version of the plugin are you running pls?

Paul