Transparency Issues

[KnightOwl-Git]

I noticed some slight transparency issues when using the new widget components (which are awesome by the way!!)

Blending from a color to full transparency has this muddy in-between color. The yellow background here is the camera background in Unity.

For comparison, here's what it looks like when the yellow background is within the rive file itself:

In addition, there's a slight dark outline around rive graphics with alpha transparency, most visible with a bright object against a bright background. My guess is that this is the same problem as the above interacting with the anti-aliasing.

[damzobridge]

Thanks for reporting this, we're looking into it internally!

It sounds like the same issue mentioned here. There's a workaround in that thread that you could try in the meantime for the dark outline.

[KnightOwl-Git]

Thanks! Is there any way to apply that legacy shader to the rive canvas object material through a script? Or would I need to render to a texture and then display it manually?

[damzobridge]

For now, you can create a material that uses the legacy shader, then use GetComponent on the RivePanel to get the CanvasRendererRawImage and apply it directly there.

We're going to expose a way to pass in materials directly in an upcoming release.

[KnightOwl-Git]

When I try running this script, I get an error saying "CanvasRendererRawImage" is inaccessible due to its protection level.

Sorry if I'm missing something obvious, I'm new to Unity!

[damzobridge]

No worries! If you do transform.GetComponent<RawImage>() instead, does that work for you?

[KnightOwl-Git]

That works, thanks so much! I see now that the transparency issue has to do with pre-multiplied alpha vs straight alpha (same as the current unreal runtime build)