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Found 5 results

  1. Displace surface by noise?

    Hello all, I know how to displace a surface, using the volume vop. VDB workflow. The displacement is generated by noise within the volume VOP. What I am trying to figure out now is how to have the displacement only on certain parts of the surface, only on certain parts of a sphere, for example. I can create noise on a surface, but how would I have that noise drive the displacement? So white is full displacement, black is none, for example? Thanks! T
  2. Noise Control using Colour

    Hi, I am trying to control the frequency of noise using a colour attribute. I have managed to do this on a grid but I cant figure out how to do the same using a volumevop. My goal is to be able to control the amount of detail/scale in specific areas of the model. Im not sure if this is the right way do to this but the example image shows that effect I'm trying to achieve. Thanks Noise control.hipnc
  3. Hi guys! I'm trying to restrict volume density by Bounding Box and Ramp. I created FitRange and Ramp nodes. When I move sphere by Y axis I can modify FitRange MIN and MAX values manually to keep density restricted. But I can't import min and max values and wire them into min and max inputs of FitRange. Is it possible to import attribute into volumevop? cloud_dencity_test_001.hip
  4. Why directly indexing into a given component of a vector field using parm type float doesn't work ? For example volume prim having a named attribute "test.x" isn't accessible with the same name of type float inside volume vop. Some insights will be helpful Thanks, -Gaurav
  5. Hi, Guys. I have just begin to learn volumevop. I bulit a vel volume form attribute N. What i want to do is modify the vel value in volumevop. But how to import the vel attribute to volumevop. I try to use Primitive Attribute, or Get Attribute, it seems not work at all. Any help will be great! Thanks! volume_vel_multiply.hip
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