I am trying to achieve transparency for a mesh in SceneKit on iOS. I am confused by the documentation as there seem to be multiple ways to make a mesh transparent:
- Use alpha channel of UIColor via
SCNMaterial.transparency (a CGFloat from 0.0 to 1.0)
SCNMaterial.transparent (another SCNMaterialProperty)
SCNNode.opacity (a CGFloat from 0.0 (fully transparent) to 1.0 (fully opaque))
- Is there any detailed description of the color math somewhere?
- What is the common way to add transparency (per object, not via textures/per vertex)?
- How does
SCNMaterial.transparent interact with the other color channels such as
- Is it true that alpha channel must be premultiplied as suggested in https://stackoverflow.com/a/30195543/278842?
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