Prashant Verma

Thanks guys, I think you guys have given plenty of good ideas which I haven't tried yet. I will try these.

I have a train alembic exported from maya to houdini and rendering redshift, There is a camera attached to the train carriage (parented inside Maya) which is exported as alembic as well. In houdini I'm doing general clean operations, converting to polygons and caching as bgeo with point velocity calculation. When i render the bgeo i'm getting incorrect motion blur spikes in certain frames which is really hard to fix at this point.
I generated acceleration attribute from point vel and i noticed huge jumps in certain frames like 120 to -700 even though mesh is perfectly smooth.
The ideal way is that the mesh should be without motion blur (cam attached to it) and landscape full blur. It is working as expected for most frames except some. (attached video)
I have ticked mesh deformation blur from velocity on in obj container of train carriage, without it the train is in streaks like env.

I'm in dire need of help as deadline is approaching. kindly help please.

I have created a collection of a single tree in karma xpu (plan to use multiple trees later) And I have plugged that collection into an instancer node, The output of instancer node is not showing textures, whereas collection node is properly showing textures. What's the best way to go about showing textures with instancer node? All the materials are assigned properly yet the textures are not showing.
When I tick, 'use entire stage' in instancer, it shows the textures in houdini gl preview but not in karma xpu render strangely.

images here: https://imgur.com/a/DX9qWtm [imgur.com]

Please help.