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Matt Lantz asked ·

C4DtoA - Using Mesh Particles with Bend Deformers

My problem is simple, I have a plane which I'm using an Arnold Mesh Particles on to render a custom object, and I need to animate and reposition the plane with a C4D bend deformer. When I use it all the mesh particles render in twisted way facing upwards.

How could I have the mesh particles follow the UV of the plane??

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Matt Lantz answered ·

Yeah, so it freezes for about 5 to 20 minutes in when I start up the IPR. I'm clearing out my file and just working with a segment of the plan and then going to try to use a spline wrap to clone that segment onto. That segment has the Arnold mesh particles applied to it to render the object to the verticies.

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Peter Horvath answered ·

The Bend deformer does not alter the number of vertices so it should not make any difference in the performance. Is C4D frozen for a couple of seconds (minutes?) or completely? Is it the IPR or the PV render too?

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Matt Lantz answered ·

@Stephen Blair

Ok so I've made it back to the office today after the holiday. My plane size is 1.267 inches wide by 600 inches long. I have it kinda heavily subdivided so I'm able to render the mesh object to "Shape mode = Sequential" so that all the custom shapes are rendered aligned to the vertices of the plane. And the plane is a not being subdivided by an effector or subdivision surface object it's an editable object now.

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Stephen Blair answered ·

Just how big is the plane? The custom object is being instanced in Arnold, so the complexity of that object shouldn't matter, at least not for rendering.

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Matt Lantz answered ·

Ok, so it worked flat but as I use a c4d deformer bend tool c4d freezes up. It seems that it as re-angled the object being cloned using the c4dtoa "Arnold Mesh Particles".

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This is with the Arnold IPR window open?

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Matt Lantz answered ·

I actually did that and my machine had frozen up... I'm going to use a smaller plane to simulate this on.

Do you think @Stephen Blair then I could create a arnold .ass file of a smaller portion of what I'm using and clone that .ass file to the surface of a plane?

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Stephen Blair answered ·

Check the Channels tab of the Mesh Particles tag.

Set the Rotation to Normal

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