Particles with alpha channel

Question

Created Apr ’24

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I wanted to create a particle effect using particle images I copied from a Unity project. These images are PNGs with an alpha channel. In Unity, these look georgeous, but on visionOS, they look rather weird, since the alpha channel is not respected. All pixel which are not pitch black are full white. Is there a way to change this behavior?

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Answer 1

Developer Tools Engineer OP

Apple

Jun ’24

Textures for the particle emitter component are required to have pre-multiplied alphas (where the RGB channels are multiplied with the alpha channel before being stored). If you do find issues with a pre-multiplied image, please provide a sample texture and describe the issue seen. Thank you!

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