Sketch-based 3D fluid volume generation using a machine learning system

A system comprising:

• means for obtaining a 2D sketch of an outline of a fluid;
• means for obtaining a first binary mask of the 2D sketch;
• means for generating, using a machine learning system, a first 3D fluid volume from the 2D sketch and the first binary mask;
• means for refining the first 3D fluid volume by performing one or more iterations of physically based fluid simulation based on the first 3D fluid volume to generate a second 3D fluid volume;
• and
• means for maintaining the second 3D fluid volume as a 3D fluid volume for the fluid.

In a digital medium environment to generate a 3D fluid volume for a fluid, a computing device comprising:

• a processor;
• and
• non-transitory computer-readable storage media having stored thereon multiple instructions that, responsive to execution by the processor, cause the processor to perform operations comprising:
• obtaining a 2D sketch of an outline of the fluid;
• obtaining a first binary mask of the 2D sketch;
• generating, using a machine learning system, a first 3D fluid volume from the 2D sketch and the first binary mask;
• refining the first 3D fluid volume by performing one or more iterations of physically based fluid simulation based on the first 3D fluid volume to generate a second 3D fluid volume;
• and
• maintaining the second 3D fluid volume as the 3D fluid volume for the fluid.