Modifying voxel resolutions within three-dimensional representations

A computer-implemented method comprising:

• identifying, via a digital smooth brush tool operated within a client device, a selection of a plurality of voxels from a three-dimensional representation;
• applying, by the client device, the digital smooth brush tool to the plurality of voxels of the three-dimensional representation by generating a rendering set of visual properties to preview a smoothing effect on the three-dimensional representation by modifying one or more displayed voxels from the plurality of voxels by selecting rendering opacities for the rendering set of visual properties based on a comparison of the opacities corresponding to voxels in a buffer of visual properties for the plurality of voxels to alpha validity thresholds for the voxels based on opacities corresponding to visual properties of the plurality of voxels in an alpha buffer;
• and
• modifying the three-dimensional representation by:
• modifying one or more colors for one or more voxels reflected in the buffer of visual properties based on the comparisons of the opacities from the buffer of visual properties and the alpha buffer of visual properties;
• merging two or more voxels from the plurality of voxels based on the two or more voxels comprising no visual properties in the buffer of visual properties;
• and
• splitting one or more additional voxels based on the one or more additional voxels comprising visual properties in the buffer of visual properties.

A non-transitory computer-readable medium storing instructions that, when executed by at least one processor, cause the at least one processor to perform operations comprising:

• generating a first buffer of visual properties comprising colors and opacities of a plurality of voxels of a three-dimensional representation;
• modifying the visual properties of the plurality of voxels reflected in the first buffer based on modified visual properties from a second buffer comprising modified colors and modified opacities of the plurality of voxels;
• generating a third buffer of visual properties of the plurality of voxels, wherein the third buffer comprises the opacities of the plurality of voxels;
• and
• generating a rendering set of visual properties by modifying one or more displayed voxels from the plurality of voxels by selecting rendering opacities for the rendering set of visual properties based on a comparisons of the opacities corresponding to voxels in the first buffer to alpha validity thresholds for the voxels based on the opacities corresponding to the plurality of voxels in the third buffer.