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PlayblastVR Bifrost Splash + Foam Simulation


This project used the PlayblastVR for Maya renderer to create an equirectangular 360° VR previz animation from a Maya based fluid simulation.

You can pan around and view an immersive panoramic version of the Bifrost simulation below with the Google Cardboard VR View media player:

Maya Bifrost Simulation Notes

This is what the Maya 2017 Render View looks like when the PlayblastVR Render settings window is docked on the side for convenience.

For this experiment a splash tank scene was created in Maya with the help of the Bifrost based FLIP liquids solver. Outside of the square splash tank, a blue water surface mesh was extended visually all the way to the horizon and it was textured with a shader that matched the color of the Bifrost splash voxels.

For the 144 frame simulation Bifrost created both liquid splash and foam elements from 417,000 Bifrost voxels. For the white foam like spray in the animation there are 1,446,754 Bifrost foam particles in use that were rendered using the “Point” particle type with a 1 pixel diameter.

I noticed in Maya Viewport 2.0 based renderings in both the interactive “persp” view and in the Maya render view that the Bifrost particle size setting is measured using screen space units. This means you have to adjust the point size slightly when changing the render resolution from something modest like 1080p HD, up to 4K, or 8K output.

This is what the Maya Outliner view looks like when a bifrostLiquid node has both a liquid and foam shape added to the simulation.