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README.md
Property Texture With Texture Transform
The test data from https://github.com/CesiumGS/cesium/issues/11708 :
It is a glTF asset that only contains a unit square.
It uses the same texture for the base color and for a Property Texture: The texture just contains 8x8 pixels with increasing 'red' component values: The red components will be [0 ... 64)3. (Meaning that the lower right pixel will have a red value of 633=189).
So the base color will be (black ... red), and the property values in the property texture will be in [0...189] / 255.0 (because this red component is a 'normalized' UINT8 property).
It uses the same texture transform for both usages of the texture, namely with an offset of [0.25, 0.25], and a scale of [0.5, 0.5].