Motion blur does not work while spawning

[vertexcolor]

This one is interesting. Motion blur won't kick in until frame 17 which is 1 frame after all particles have spawned.

No clue why it won't blur during the spawn time frame. See attached file.

[tyFlow]

Are new particles spawning until frame 17? Moblur isn't supported for topology-changing geo (yet) so you're not seeing it until the vert/face count stops changing.

[vertexcolor]

Are new particles spawning until frame 17? Moblur isn't supported for topology-changing geo (yet) so you're not seeing it until the vert/face count stops changing.

Is there a way around this? King of need to have blur while it is spawning?

[tyFlow]

tyFlow doesn't yet offer options for moblur on meshes with changing topology.

[mitchfx]

Are new particles spawning until frame 17? Moblur isn't supported for topology-changing geo (yet) so you're not seeing it until the vert/face count stops changing.

Is there a way around this? King of need to have blur while it is spawning?

Try setting your motion blur interval center to 0.5 instead of 0.0 to get around this.  That sometimes works for me when the particle count is changing.

[vertexcolor]

Are new particles spawning until frame 17? Moblur isn't supported for topology-changing geo (yet) so you're not seeing it until the vert/face count stops changing.

Is there a way around this? King of need to have blur while it is spawning?

Try setting your motion blur interval center to 0.5 instead of 0.0 to get around this.  That sometimes works for me when the particle count is changing.

Great call Mitch!