problem with UVW and Projection

[fabrizio_s]

Good morning,
I'm trying octane demo but I can't understand UVW transform and Projection.
Why if I select Coordinate Space: Object Space the result is this?



thanx

fabrizio

[bepeg4d]

Hi fabrizio,
in short, in world space, the origin of the texture is the same as the world origin, so if you move your object, the texture stays in place.
In Object space, the origin of the texture is the origin of the object, so if you move the object, the texture follows it.
ciao beppe

[fabrizio_s]

hi beppe,
but I'm in object space and texture don't follow the obects...

best regards

fabrizio

[fabrizio_s]

Hi,
any idea?


bye

[bepeg4d]

Hi,
maybe the pivot of the object is always in the center, so the right cylinder is referring to the wrong pivot?
ciao beppe

[face_off]

Hi Fabrizio, the OctaneRender for Rhino plugin works in World Space only - and not Local Space (or Object Space). This is because the RhinoCommon API which the plugin uses to obtain geometry from Rhino only supplies world space vertex positions (and not local space vertex positions with a transform). So Object Space projections will act like World Space projections. The only exception to this rule is Block Instances - for which Rhino DOES provide local space vertex positions with a transform. So in summary - Object Space projections should work correctly for block instances, but not non-block instance geometry.

Paul

[fabrizio_s]

ok, thanks a lot