Hey all,
I’m having a heck of a time trying to convert my z_up_axis collada file to a y_up_axis collada file.
For static geometry I can just do for each vertex:
y = z
z = -y
(essentially a -90 degree rotation along the x axis)
But for animated models this doesnt work as there is extra data that will be in the wrong coordinate system.
My skinning equation is:
vertex * bindShapeMatrix * InverseBindMatrix * Joint
The biggest confusion is not really knowing which data is in it’s own space and thus “immune” to z_up_axis or y_up_axis differences.
Does anyone know which data (And how) should be changed in order to convert a z_up_axis model to a y_up_axis model?
Thank you very much!