OTOY Forums

Hello,
I've started using Octane for some rudimentary renders just trying to get a feel for it. One question:
sometimes (most actually) when I import an .obj it isn't visible in the viewport. It often takes all sorts of random zooms and rotations to finally find the model. Is there a way to immediately centre the object in the viewport? Also how do you know the scale of the object imported?

Michael Grant

This is up to you how you do it in your host 3d app.
You should center your model at the origin eg 0,0,0.

also, export in meters, one unit in the OBJ file should be one meter.
if you're exporter can't change this, you can use the settings in the OBJ import preferences panel to adjust the unit size on import.
but we do recommend to export in meters in the host app instead, if possible.

Radiance

wait, so if i build in 12 increment units in blender (eg inches/feet) rather than in metric, should I still tell it to treat each unit as a meter? or should it be a foot or a yard (if we were to be imperial about it).

Thanks

DayVids wrote:wait, so if i build in 12 increment units in blender (eg inches/feet) rather than in metric, should I still tell it to treat each unit as a meter? or should it be a foot or a yard (if we were to be imperial about it).

Thanks

if you make a coffee table that's suposed to be one 2 feet wide, and in blender it's 2 units wide,
and you export it, set the import options in octane to 'feet'.
same for all other metric/imperial measure types.

Radiance

And you should always make sure your units are exported/imported correctly, as the lighting solution is based on real world dimensions. Can you imagine how a 20ft tall table would turn out in a render?