Sean Lilley

Results 189 issues of Sean Lilley

The JSON tree structure for explicit tiling can get quite bulky, especially as new metadata properties are added. It would be more concise to encode tiles in binary. The general...

[quantized-mesh](https://github.com/CesiumGS/quantized-mesh) is a predecessor of 3D Tiles for global scale terrain. This issue keeps track of the remaining work needed for 3D Tiles to have parity with quantized-mesh. * [x]...

The rules for geometric error based refinement apply to all tiles, including empty tiles. That is, when the tile's screen space error exceeds some maximum, the tile is refined and...

We should consider adding a section to the 3D Tiles spec about recommended glTF extensions. This would be like best practices guide for taking the most advantage out of glTF...

Property values should be well aligned for GPU architectures. The one case we brainstormed a few weeks back is a color property like an RGB8 **Class property** ```json "color": {...

Right now a tile points to an external tileset with a content uri. But is this how we should do it in the future? Conceptually an external tileset is at...

[3DTILES_metadata](https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_metadata) and [EXT_mesh_features](https://github.com/CesiumGS/glTF/tree/3d-tiles-next/extensions/2.0/Vendor/EXT_mesh_features) added support for metadata at multiple granularities. Summary statistics about the metadata are stored in the [`statistics`](https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_metadata#Statistics) object, which includes things like min/max for numeric properties or...

next - community feedback

The 3D Metadata Specification allows a property to be assigned a semantic, which indicates how the property should be interpreted. The semantic may be one of the common semantics defined...

next - community feedback

@chris-little's feedback from https://github.com/CesiumGS/3d-tiles/pull/405: > Can tilesets be nested hierarchically? I'm not sure from the text. Can a tile can be "in" more than one tileset? I'm not sure how,...

For the next version of 3D Tiles we should consider using degrees instead of radians for longitude and latitude values. Right now this only applies to the `region` bounding volume....