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I have jet flying through a TFD container moving on xy & z with a slight banking rotation. The emitter is a disk in it's thrust area. When I run the simulation the sim particles appear where you'd expect, right where the emitter is positioned. When I render the simulation using an octane tag the position is off in XY & Z, by a few cm each. Anyone Have any ideas why this is happening? Even a small cube moving through a TFD container on the X axis has this problem. Is it a scale thing? I scaled my model down pretty significantly to allow for a smaller container.

I tried having the container as a child of the jet and positioned at the thruster but that doesn't work either.

Rotation of TFD volume is not supported yet. Pls try without rotation.

The volume is not rotating. I saw another forum post so I abandoned that. The volume is static, the missile is flying through it. Straight line in X.

I did another test with a cube. It seems to be a scale issue. When the cube is large 25x25x25 and above the simulation renders correctly in the right spot. If I shrink the cube to 3x3x3 it's not positioned correctly.

Can you save and send this scene?

Sorry for the delay here is the a similar scene. Not being able to rotate the container is a problem. I want the smallest container possible. If your model isn't zero'd out on rotation you have to tinker with the wind settings to get a flow to react properly, instead of just rotating the container to match your model and saying wind +1 on X. So, in order to keep a small container and small voxels I scaled my model down. Now the emitters render location is off. Is there a fix in the works? Between this and the realflow issues I'm having a hard time with Octane right now.

Thanks for scene. Something seems wrong about TFD conversion. I'll be checking that.

Is there any update on this TFD issue? It seems like it is related to a simple issue I am having of scaling a TFD container to a larger size. It looks different and jumps position, but does not increase scale as it should.

Is scaling a TFD container possible with Octane? If so how? Thank you.

I am having this issue as well. I have a T4D volume with a cloud in it, and I am duplicating + scaling the cloud multiple times. Currently Octane ignores the scale and just repositions the volume.

Any fix / workaround for this?

grain wrote:I am having this issue as well. I have a T4D volume with a cloud in it, and I am duplicating + scaling the cloud multiple times. Currently Octane ignores the scale and just repositions the volume.

Any fix / workaround for this?

Not yet.

What I've done as a workaround if you absolutely need to use the sim, is place the rest of your scene in a null and scale / position / rotate it to line up with the TFD container when the container PSR is zeroed-out. Not ideal but if you absolutely cannot afford to re-sim...