https://www.buymeacoffee.com/faddyvfx/e/171794
https://www.patreon.com/posts/surface-bubbles-90119742https://www.youtube.com/watch?v=b6pZW7aEMfA
In Houdini, you can create a captivating effect of bubbles moving on the surface of an object by combining the power of the MOPs (Motion Operators) framework with particle simulations. Here's a brief description of the process:
Start by importing or modeling the surface on which you want the bubbles to appear. Ensure that the surface has appropriate geometry and UV coordinates for texture mapping.
Next, set up your particle simulation using the Pop Network. Inside the Pop Network, add a Pop Source to emit particles onto the surface. You can control the emission rate, initial speed, and other attributes to suit your needs.
To make the particles move according to the MOP Effector, you'll want to use a "POP Advect by Volumes" or similar POP solver. Connect this solver to the Pop Source, and configure it to interact with the MOP Effector. This step involves using the "Volume Velocity" or "Volume Force" fields provided by the MOP Effector.
The MOP Effector can be customized to apply forces, deformations, or other effects to the particles. For the bubble-like motion, you might use a combination of turbulence, curl noise, and velocity fields to mimic the appearance of bubbles floating on a surface.
Ensure that your particles have attributes like size, color, and transparency to make them look like bubbles. You can use POP Wrangles to manipulate these attributes based on the particles' age, speed, or other factors to create a realistic bubble effect.
Finally, render the scene with your preferred rendering engine, and apply appropriate materials and lighting to achieve the desired bubble appearance.
By combining particle simulations and the MOPs framework in Houdini, you can create a visually stunning animation of bubbles moving dynamically on the surface of objects, adding a realistic and captivating element to your scenes.https://www.buymeacoffee.com/faddyvfx/e/171794