mirror of https://github.com/CesiumGS/cesium.git
25 lines
1.4 KiB
Markdown
25 lines
1.4 KiB
Markdown
|
# Property Texture With Vector (and other) Properties
|
||
|
|
|
||
|
|
This sample is a variation on [`SimplePropertyTexture`](../SimplePropertyTexture/) with a different set of properties defined to test more advanced metadata
|
||
|
|
types. This model is contrived, it is intended for unit testing only.
|
||
|
|
|
||
|
|
The sample contains a glTF asset with a single mesh primitive. The mesh primitive consists of a quad (the unit square), formed by 2 triangles. The vertices in this mesh primitive have the usual `POSITION`, `NORMAL`, and `TEXCOORD_0` vertex attributes.
|
||
|
|
|
||
|
## Metadata Structure
|
||
|
|
|
||
|
|
This model contains the following metadata properties to set up several
|
||
|
|
different test cases. The properties share the same texture, reinterpreting the
|
||
|
|
bytes as necessary.
|
||
|
|
|
||
|
|
| property ID | Type | Channels |
|
||
|
|
| ------------------------ | --------------------------------------------- | -------- |
|
||
|
|
| `vec2Property` | `VEC2` of `UINT8` (normalized) | `gb` |
|
||
|
|
| `uint8Property` | `UINT8` | `r` |
|
||
|
|
| `uint8vec3Property` | `VEC3` of `UINT8` | `rgb` |
|
||
|
|
| `arrayProperty` | array of 3 `UINT8` (normalized) | `rgb` |
|
||
|
|
| `valueTransformProperty` | `VEC2` of `UINT8` (normalized + offset/scale) | `rg` |
|
||
|
|
|
||
|
|
## License
|
||
|
|
|
||
|
|
[CC0](https://creativecommons.org/share-your-work/public-domain/cc0/)
|