Corona 15 - fast anim parsing doesn't render properly with Spline IK Control modifier

Corona Corona for 3ds Max Corona for 3ds Max :: Issues
1

Found a replicable bug with Corona 15 fast animation parsing of spline with Spline IK Control points.

  1. Draw a simple, renderable spline with several vertices
  2. Add a Spline IK Control modifier to the spline with helper points assigned to vertices
  3. Animate position of helper points
  4. Network render with fast animation parsing enabled

You’ll notice the rendered spline either does not move at all or jumps around. Do the same thing with fast parsing disabled and the spline will render properly.

I’ve tried this with several existing and new projects with the same results. 3ds Max 2026.3.2

2

Confirmed and logged for our developers as (CMAX-2425). Unfortunately, we are not aware of any other workarounds that disabling fast animation parsing. Thank you for this report!

3

Thanks for confirming. Hopefully a hotfix covers this bug as now that decals work with fast anim parsing, our long mechanical animations weren’t taking as long to render.