Thanks Kevin
I try to set Linear manually on curves but it does not fix.
I have Position / Rotation / Focal keys, it is an animation but a packshot of views , i don't want any interpolation.
I am new with the animatiçon panel, i select keys and set menu Linear but nothing work.
i decide to create another camera and copy and paste from the FBX animated channels to the new one and it works !
BUT as soon as i set a keyframe i revert to a badly render !
How is it possible that viewport and RTP have a certain point of view and le rendering of the same camera and frame, a different
( I have a simple scene showing but i don't know how to attach. )
Very reproducable from Maya, create a Cube export it as OBJ and a camera, setkeyframe camera move it setkeyframe, linear curve, export it as FBX Yup
Import camera FBX default unit ok
import the Cube ( set as unit in the object Transforms once imported as cm and scale 0.1 0.1 0.1 )
now camera match cube, perfect, now play anim, ok , the viewport is fine.
then render frame 1 of the camera in Terragen ok, but frame 2 is slightly moving and bugged not corresponding to the viewport.