Camera offset between viewport and octane Tweet

[smuseus]

I'm experiencing a camera offset between the houdini viewport and the octane renderer, any clue to why this is happening?

The attachment shows the difference between the viewport and octane IPR, a offset in the up axis.

[juanjgon]

It seems a displacement due to any of the camera parameters related to the frame offset. You can have the "Perspective Correction" parameter enabled in the render target camera tab, or the "Screen Window" parameters in the Houdini camera node.

If you want to send me the scene, I could test it here.

Thanks,
-Juanjo

[smuseus]

hey juanjgon, on closer inspection, it seems to be a instancing problem and not a camera problem.

look at the following attachment. the yellow geometry is normal geometry objects. the grey are instanced geometry. the red pointcloud is the position pass from the rendered image.

the position data is accurate for the normal geometry objects, however offset for all the instanced objects.

[juanjgon]

Hmm, weird. I am going to need the scene see where is the problem. Can be a problem with the transformations of the object to be instanced, at OBJ level or at SOP level ... it is hard to say without the scene.

Thanks,
-Juanjo