Render resolution affects the size of a mask in the compositor. #50113

New Issue

Jason schleifer · 2016-11-25T08:25:52+01:00

Jason schleifer commented

2016-11-25 08:25:52 +01:00

When adjusting the render resolution percentage, masks in the compositor are affected in scale. These should not be tied together.

Here's an animated gif demonstrating..

When adjusting the render resolution percentage, masks in the compositor are affected in scale. These should not be tied together. Here's an animated gif demonstrating.. ![renderResolutionAffectingMaskSize.gif](https://archive.blender.org/developer/F406092/renderResolutionAffectingMaskSize.gif)

Jason schleifer commented

2016-11-25 08:25:52 +01:00

Changed status to: 'Open'

Jason schleifer commented

2016-11-25 08:25:52 +01:00

Added subscriber: @JasonSchleifer

Jason schleifer commented

2016-11-25 08:27:15 +01:00

if the animated gif won't load, check out the gif here..

http://www.giphy.com/gifs/l2JhONGhmXbzdvOLu

if the animated gif won't load, check out the gif here.. http://www.giphy.com/gifs/l2JhONGhmXbzdvOLu

Olly Funkster commented

2016-11-25 18:47:08 +01:00

Added subscriber: @Funkster-3

Aaron Carlisle commented

2016-11-26 16:29:26 +01:00

Added subscriber: @Blendify

Aaron Carlisle commented

2016-11-26 16:29:26 +01:00

Hmm, this is intended behavior but for example, the mask node has the Size property to change how this works.

Hmm, this is intended behavior but for example, the mask node has the *Size* property to change how this works.

Jason schleifer commented

2016-11-26 16:49:33 +01:00

Just curious why this would be the intended behavior? Isn't the render percentage only supposed to modify the final output? By having it affect the way the compositor works, you have to adjust your mask nodes every time you adjust the final render output. This seems cumbersome and unintuitive.

If it were consistent, then all nodes should be affected by this render percentage value. But they're not (nor should they be, imo).

Just curious why this would be the intended behavior? Isn't the render percentage only supposed to modify the final output? By having it affect the way the compositor works, you have to adjust your mask nodes every time you adjust the final render output. This seems cumbersome and unintuitive. If it were consistent, then all nodes should be affected by this render percentage value. But they're not (nor should they be, imo).

Jacques Lucke commented

2016-11-26 22:31:28 +01:00

Added subscriber: @JacquesLucke

ronan ducluzeau commented

2016-12-07 18:41:11 +01:00

Added subscriber: @zeauro

ronan ducluzeau commented

2016-12-07 18:41:11 +01:00

Here, the problem is not the mask.
It is the image.

If you change render output percentage, you have to add a scale node after Image Input and to change its space from Relative to Scene Size or Render Size.

Problem does not exist with a renderlayer node when it is refreshed.

Here, the problem is not the mask. It is the image. If you change render output percentage, you have to add a scale node after Image Input and to change its space from Relative to Scene Size or Render Size. Problem does not exist with a renderlayer node when it is refreshed.

Sergey Sharybin commented

2016-12-09 14:37:59 +01:00

Added subscriber: @Sergey

Sergey Sharybin commented

2016-12-09 14:37:59 +01:00

Changed status from 'Open' to: 'Archived'

Sergey Sharybin closed this issue

2016-12-09 14:37:59 +01:00

Sergey Sharybin self-assigned this 2016-12-09 14:37:59 +01:00

Sergey Sharybin commented

2016-12-09 14:37:59 +01:00

Masks are stored in the normalized space (coordinates 0 to 1) which are then mapped to the "canvas". By default, we map them to scene resolution, so when you do alpha-over or things like that in compo you always have same result regardless of render percentage.

If you don't want that behavior, switch mask to a fixed size.

Masks are stored in the normalized space (coordinates 0 to 1) which are then mapped to the "canvas". By default, we map them to scene resolution, so when you do alpha-over or things like that in compo you always have same result regardless of render percentage. If you don't want that behavior, switch mask to a fixed size.

Jason schleifer commented

2016-12-09 14:57:38 +01:00

Hey Sergey,

So it looks like the actual bug is that the viewer node doesn't update correctly based off render resolution.. the user is forced to to do a full re-render. This can be very confusing!

I'll log that bug instead.

cheers,
Jason

Hey Sergey, So it looks like the actual bug is that the viewer node doesn't update correctly based off render resolution.. the user is forced to to do a full re-render. This can be very confusing! I'll log that bug instead. cheers, Jason

Sergey Sharybin commented

2016-12-09 15:09:54 +01:00

Hrm, yeah that's confusing.

Do you mind submitting that report with corresponding title and description? (so we don't "reuse" this report to keep it all clear what exact issue we've discussed and such).

Hrm, yeah that's confusing. Do you mind submitting that report with corresponding title and description? (so we don't "reuse" this report to keep it all clear what exact issue we've discussed and such).

Jason schleifer commented

2016-12-09 15:11:15 +01:00

happy to - and already did. :)
#50212

woot!

happy to - and already did. :) [#50212 ](https://developer.blender.org/T50212) woot!

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Render resolution affects the size of a mask in the compositor. #50113