Slow Render Selected

[Tanakov]

Hello,
I have experienced odd behavior in Corona.

1. Render Selected Mode - Viewpot Selection
- Render of the object took 5 min

2. 1. Render Selected Mode - Viewpot Selection + Region in VFB
- Render of the same object took 9 sec.

This is quite ground breaking. I have tested it several times, works like a charm.

[atelieryork]

Even if you set the region to be the whole view?

[Ondra]

do you have huge render resolution and small render region? In that case it would be expected

[Tanakov]

Not huge, but yes the region is small same as the object selected.

[maru]

I have checked this. There is something funny going on indeed, but I cannot tell if it's a bug or something expected. I wasn't rendering in huge resolution, but the scene was pretty heavy (lots of proxies outside - trees and grass). I can check this with other scenes.

[Ondra]

yes, this is expected - there is some extra work to discover the pixels that need to be rendered. This is done even for pixels that end up not being rendered

[maru]

Would it be possible to make Corona internally do a region around the selected object?

[Tanakov]

My question is, will region+slected method result in crashes? Or its a proper way?

[Ondra]

Would it be possible to make Corona internally do a region around the selected object?

yes, some optimization is possible in the future

[Ludvik Koutny]

Or somehow cache that pixel mask after first pass.

[maru]

(internal note: id=257367101)

[rowmanns]

Fixed in v6 DB 2020-07-21