Hello all,
is anyone familiar with the workflow Unreal Alembic and Maya?
I just can’t get motion blur on my fluid simulation.
That it must work somehow shows the following video:
I have already asked in the Maya forum and also in the comment section of the video, but get no response.
The only difference I have is that I use Maya to create my ABC cache insted of Houdini.
Otherwise I have been able to adopt everything.
Here are my settings:
Maya Almebic Cache export:
- Motion Vectors are baked into the geometry via Bifrost.
- They look correct in the viewport. I don’t know if Unreal needs a specific name to recognize the vertex color as a motion vector so i tried the following names for the vertex color:
bifrost_velocity (The original name)
velocityPV
velocity
Alembic Export:
UV Write: On
Write Color Sets: On
Write Visibility: On
Write UV Sets: On
File Format: Ogawa
I also added an attribute in the Attribute section "motionVectorColorSet "
Unreal Engine 5:
Import Type: Geometry Cache
Motion Vectors: Import Abc Velocities as Motion Vectors
Project Settings> Rendering Settings> Default Settings> Motion Blur On
Material Property: Output Translucent Velocity
All other objects have Motion Blur. Even another Alembic object.
However, one with a non-changing topology. Here I have chosen the other import function.
If I should have forgotten something I would be very grateful if someone could give me a tip.
I just can’t think of anything else I could change before I switch to Houdini.
Thanks in advance