Author Topic: Render only masks (disable shading) does not work anymore?  (Read 244 times)

2025-07-22, 09:21:25

brr

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Hello Corona-team,
I haven’t used the brilliant "Render only masks (disable shading)" option in several recent Corona versions, but I needed it for a project recently. Has something changed? Am I missing something ? When I activate it, all my masks turn completely white.

I tested this with the alpha mask in Corona 12.2 and 13, using a completely blank scene with default settings - only the max background color was changed.

Please take a look at my attached video.

2025-07-22, 09:56:47
Reply #1

romullus

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Counterintuitively alpha is a shading pass, so it will not render when render only masks is enabled. Try to add some non-shading elements and it should work fine.
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2025-07-22, 10:55:48
Reply #2

brr

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Counterintuitively alpha is a shading pass, so it will not render when render only masks is enabled. Try to add some non-shading elements and it should work fine.

Oh wow! Thank you for the information. Indeed, it is very counterintuitive, because alpha is always perceived as a simple mask by users. Now I understand why it has the CShading prefix.
I think the topic can be closed - there is no issue here. False alarm. Sorry!

2025-07-22, 12:02:46
Reply #3

romullus

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Yeah, i always get caught on this too :] I'm moving the topic to resolved board then.
I'm not Corona Team member. Everything i say, is my personal opinion only.
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