Image/Text Resizing/Scaling Bug

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Florian Gintenreiter

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Image/Text Resizing/Scaling Bug

PostSat Dec 05, 2020 10:52 pm

Hi!

I'm having a problem that last plagued me back in 2018 with some Resolve 14 Betas.

https://forum.blackmagicdesign.com/viewtopic.php?f=21&t=74766

Now on 17 Beta 3 it's back again: Graphics (PNG and PSDs) with alpha have jagged edges that get even worst when they are scaled. No matter how I set the Resize Filter in Image Scaling it's still the same. I also tried to change the Alpha Mode in the clip's settings but to no avail.
The same jagged edges appear in titles that have been written in resolve itself using any of the built-in title effects
Hardware: MacBookPro 16" 2023, M3 Max, 64GM Ram, Blackmagic Ultra Studio 4K mini, Resolve Micro Panel, Speed Editor, PreSonus 26c Audio Interface
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Jim Simon

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Re: Image/Text Resizing/Scaling Bug

PostSun Dec 06, 2020 4:31 pm

I can't duplicate this in Studio 17b3 for Windows. Text and PNG's with alpha look good.
My Biases:

You NEED training.
You NEED a desktop.
You NEED a calibrated (non-computer) display.
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Florian Gintenreiter

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Re: Image/Text Resizing/Scaling Bug

PostSun Dec 06, 2020 8:36 pm

Jim Simon wrote:I can't duplicate this in Studio 17b3 for Windows. Text and PNG's with alpha look good.

I'm on a iMacPro w/ Radeon Pro Vega 64/16GB. Seems to be a mac issue then.
Hardware: MacBookPro 16" 2023, M3 Max, 64GM Ram, Blackmagic Ultra Studio 4K mini, Resolve Micro Panel, Speed Editor, PreSonus 26c Audio Interface
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Jim Simon

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Re: Image/Text Resizing/Scaling Bug

PostSun Dec 06, 2020 11:11 pm

Or AMD.
My Biases:

You NEED training.
You NEED a desktop.
You NEED a calibrated (non-computer) display.
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Uli Plank

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Re: Image/Text Resizing/Scaling Bug

PostMon Dec 07, 2020 3:24 am

At least not the 580 by AMD. Works as expected here.
Please keep in mind that these are bitmap graphics, not vectors. So, any upscaling will introduce some artifacts.
My disaster protection: export a .drp file to a physically separated storage regularly.

Studio 19.1.3
MacOS 13.7.4, 2017 iMac, 32 GB, Radeon Pro 580 + eGPU
MacBook M1 Pro, 16 GPU cores, 32 GB RAM, MacOS 14.7.2
SE, USM G3
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Rohit Singhal

Blackmagic Design

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Re: Image/Text Resizing/Scaling Bug

PostMon Dec 07, 2020 9:50 am

Florian Gintenreiter wrote:Hi!

I'm having a problem that last plagued me back in 2018 with some Resolve 14 Betas.

https://forum.blackmagicdesign.com/viewtopic.php?f=21&t=74766

Now on 17 Beta 3 it's back again: Graphics (PNG and PSDs) with alpha have jagged edges that get even worst when they are scaled. No matter how I set the Resize Filter in Image Scaling it's still the same. I also tried to change the Alpha Mode in the clip's settings but to no avail.
The same jagged edges appear in titles that have been written in resolve itself using any of the built-in title effects


Hi,

Can you send us a sample clip which shows this issue? you can pm me if you like.
Rohit Singhal
DaVinci Resolve Software Development
Blackmagic Design
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Florian Gintenreiter

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Re: Image/Text Resizing/Scaling Bug

PostMon Dec 07, 2020 11:58 am

Uli Plank wrote:At least not the 580 by AMD. Works as expected here.
Please keep in mind that these are bitmap graphics, not vectors. So, any upscaling will introduce some artifacts.
I actually downscale
Hardware: MacBookPro 16" 2023, M3 Max, 64GM Ram, Blackmagic Ultra Studio 4K mini, Resolve Micro Panel, Speed Editor, PreSonus 26c Audio Interface
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Uli Plank

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Re: Image/Text Resizing/Scaling Bug

PostMon Dec 07, 2020 1:54 pm

They look crisp here when downscaling.
My disaster protection: export a .drp file to a physically separated storage regularly.

Studio 19.1.3
MacOS 13.7.4, 2017 iMac, 32 GB, Radeon Pro 580 + eGPU
MacBook M1 Pro, 16 GPU cores, 32 GB RAM, MacOS 14.7.2
SE, USM G3
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bernard_feliciano

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Re: Image/Text Resizing/Scaling Bug

PostMon Jan 11, 2021 7:45 am

I've got the same issue. I'm also using an iMac Pro, and i'm on 17.6 Beta. Had to render the project and move it to another NLE to resolve the issue.
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bernard_feliciano

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Re: Image/Text Resizing/Scaling Bug

PostWed Jan 20, 2021 12:19 pm

The latest update 17.7 fixed this issue for me. Thank you BMD!

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