Extent

These files showcase a regular mesh extent and the behavior of other extent values.

All meshes are the same cube mesh with vertices positioned at [-0.5 .. 0.5] on all three axis.

Regular Extent

Regular extent exactly matching the cube dimensions.

float3[] extent = [(-0.5, -0.5, -0.5), (0.5, 0.5, 0.5)]

screenshot regular_extent.usda, usdrecord 22.08

This mesh has its extent values in the wrong order:

float3[] extent = [(1,1,1), (0,0,0)]

screenshot inverse_extent.usda, usdrecord 22.08

This screenshot is empty as expected.

This mesh has no extent.

screenshot no_extent.usda, usdrecord 22.08

These two meshes have scaled extents.

Extent too small:

float3[] extent = [(-0.1, -0.1, -0.1), (0.1, 0.1, 0.1)]

Extent too big:

float3[] extent = [(-1, -1, -1), (1, 1, 1)]

screenshot scaled_extent.usda, usdrecord 22.08

This mesh has its extent set to zero.

float3[] extent = [(0,0,0), (0,0,0)]

screenshot zero_extent.usda, usdrecord 22.08

This screenshot is empty as expected.