Paul and Funk thanks so much! Exactly what I needed and fast fix too !

The projections are now working correctly with film offsets. This is going to be very useful to match real world tilt shift lenses.

camera projection film offset support has never been supported by the plugin, so expecting a new feature to be implemented so that you can meet your production deadline is asking a lot :-)
Paul

Paul,

In previous bugfixes dealing with the projections I must have read into things too much and ...

film_offset_error.jpg

projection_film_offset.zip


Camera projection error. Camera is projecting on a mesh and it is also the render camera. The camera has a film offset and Octane is set to use the MODO camera film offset.

In the viewport OK
In Preview OK
In Octane it's wrong.

Example scene ...

Found a hacky workaround that makes me think the behind the scenes math is reversed.

IF... I have a render camera that is also a projection camera with a film offset of:
X 700um
Y -1.3mm

I then duplicate the camera and use the duplicate camera only as the projection camera and then change the film ...

Looks like the film offset is being calculated twice or that something is reversed in the projected texture in the wall and ceiling plane.

If I have a camera with a film offset and it is the render camera as well as a projection camera (to project a texture on a plane)
I have the octane camera ...

I can confirm that shader ball bug happens on MODO 11.2 This is a big one.

I can also confirm that the two camera projection bugs now work properly. Thanks for that!
Edit - Looks like a camera projected texture (if the camera has film offsets) will render wrong.

Do you think it will be out this week? I really don'[t know - sorry. My guess is that Otoy will release the API once they have all the know issues resolved, and I will get the Modo build out a day or so after that.

Paul


Ok well I guess I'll have to use a different renderer and rebuild my scene ...

face_off wrote:I am really sorry - but I have found some issues with the modo plugin and Octane 3.08 TEST 4 which are shop-stoppers, so I won't me able to release a test version today.

Yikes thanks for the heads up and the hard work. Do you think it will be out this week?

I will post a WIP 3.08 build of the plugin in the next 24hrs, which should resolve your issue.
Paul

Awesome that will be a huge help. Really looking forward to that.

I noticed a second, different issue with projections. If I project an image with say Camera B and then render the scene with ...

So looking forward to proper Modo Camera Film Offset to Front Projection support.

I've just prepped 4 complex scenes with 5 different cameras per scene and in the 11h learned that the projections don't currently follow the Modo Camera Film Offset. Basically I have to ditch Octane completely at ...