11-22-2019, 01:28 AM
Yes, that's what I mean. The Spline Paths operator will pass down the particle transform axis to the tySpline object. The tySpline object will then pass that data down to the tySplineMesher modifier when in "from knots" mode. From there, the data passed down from the flow will be used to construct the cross sections.
That doesn't mean it won't be tricky to get the right TM for the job....you can try a Rotation operator in your flow, aligning particles to their sibling or target depending on your setup, then choosing an appropriate forward vector to keep orientations consistent, etc....this is all flow-dependent....you haven't shared any info about your flow so I can't help beyond giving you general advice. If you haven't actually aligned any of your particles properly, then you won't get good tySplineMesher results.
Here's an example scene showing spline knots aligned to particles, particles aligned to each other, and the particles rotating which, in turn, affects the spline mesh. Notice the flipping that occurs in "from spline" or "from world" modes, whereas "from knots" mode maintains perfect correspondence to particle orientations.
That doesn't mean it won't be tricky to get the right TM for the job....you can try a Rotation operator in your flow, aligning particles to their sibling or target depending on your setup, then choosing an appropriate forward vector to keep orientations consistent, etc....this is all flow-dependent....you haven't shared any info about your flow so I can't help beyond giving you general advice. If you haven't actually aligned any of your particles properly, then you won't get good tySplineMesher results.
Here's an example scene showing spline knots aligned to particles, particles aligned to each other, and the particles rotating which, in turn, affects the spline mesh. Notice the flipping that occurs in "from spline" or "from world" modes, whereas "from knots" mode maintains perfect correspondence to particle orientations.