Lightroom classic 13.5.1 brush it's working really slow if you have multiple masks

[robi10101298]

Hello,

If you have created more than 10 mask, Lightroom brush it's starting to work really slow because of multiple masks. Please improve this in the next release. 

I've attached a GIF to see the behaviour of the app. 

[moved from bugs to discussions according to the community rules - Mod.]

[F. McLion]

Please post the system information found in the help menu of LrC.

[robi10101298]

Lightroom Classic version: 13.5.1 [ 202408271704-d15d09cd ]

License: Creative Cloud

Language setting: en

Operating system: Windows 11 - Business Edition

Version: 11.0.22631

Application architecture: x64

System architecture: x64

Logical processor count: 16

Processor speed: 3.1GHz

SqLite Version: 3.36.0

CPU Utilisation: 1.0%

Power Source: Plugged In

Built-in memory: 32560.4 MB

Dedicated GPU memory used by Lightroom: 2758.4MB / 3962.0MB (69%)

Real memory available to Lightroom: 32560.4 MB

Real memory used by Lightroom: 3711.0 MB (11.3%)

Virtual memory used by Lightroom: 7381.5 MB

GDI objects count: 772

USER objects count: 2539

Process handles count: 2614

Memory cache size: 2708.7MB

Internal Camera Raw version: 16.5 [ 1954 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 1652MB / 16280MB (10%)

Camera Raw real memory: 1657MB / 32560MB (5%)

Cache1: 

Preview1- RAM:23.0MB, VRAM:0.0MB, D4S_4096-Edit.tif

Final2- RAM:189.0MB, VRAM:0.0MB, DSC_2357.NEF

Preview3- RAM:21.0MB, VRAM:0.0MB, DSC_2359.NEF

Preview4- RAM:22.0MB, VRAM:0.0MB, D4S_4095.NEF

Final5- RAM:507.0MB, VRAM:57.0MB, DSC_2358.NEF

Preview6- RAM:22.0MB, VRAM:0.0MB, D4S_4097.NEF

Preview7- RAM:22.0MB, VRAM:0.0MB, DSC_2356.NEF

Preview8- RAM:33.0MB, VRAM:0.0MB, D4S_4098.NEF

Preview9- RAM:22.0MB, VRAM:0.0MB, DSC_2355.NEF

Final10- RAM:551.0MB, VRAM:1446.0MB, DSC_2357-Enhanced-NR.dng

Preview11- RAM:22.0MB, VRAM:0.0MB, D4S_4096.NEF

NT- RAM:1434.0MB, VRAM:1503.0MB, Combined:2937.0MB

Cache2: 

m:2708.7MB, n:1073.7MB

U-main: 101.0MB

System DPI setting: 120 DPI

Desktop composition enabled: Yes

Standard Preview Size: 2560 pixels

Displays: 1) 2560x1440

Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: 

DirectX: NVIDIA GeForce RTX 3050 Ti Laptop GPU (32.0.15.6081)

Init State: GPU for Image Processing supported by default

User Preference: Auto

Enable HDR in Library: OFF

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic

Library Path: C:\Users\Daniel\Pictures\Lightroom\Lightroom Catalog-v13-3.lrcat

Settings Folder: C:\Users\Daniel\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 

1) AdobeStock

2) Flickr

3) Nikon Tether Plugin

4) Show Focus Points

5) Topaz Photo AI

Config.lua flags: 

Adapter #1: Vendor : 10de

Device : 25e0

Subsystem : 383017aa

Revision : a1

Video Memory : 3962

Adapter #2: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: $$$/dvaaudiodevice/SystemDefaultAndEffectiveDeviceName=System Default - Speakers (Realtek(R) Audio)#{comment}DVAAU-4201250: Open the audio hardware preferences page.

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: LR5x120

Direct2DEnabled: false

GL_ACCUM_ALPHA_BITS: 16

GL_ACCUM_BLUE_BITS: 16

GL_ACCUM_GREEN_BITS: 16

GL_ACCUM_RED_BITS: 16

GL_ALPHA_BITS: 0

GL_BLUE_BITS: 8

GL_DEPTH_BITS: 24

GL_GREEN_BITS: 8

GL_MAX_3D_TEXTURE_SIZE: 16384

GL_MAX_TEXTURE_SIZE: 32768

GL_MAX_TEXTURE_UNITS: 4

GL_MAX_VIEWPORT_DIMS: 32768,32768

GL_RED_BITS: 8

GL_RENDERER: NVIDIA GeForce RTX 3050 Ti Laptop GPU/PCIe/SSE2

GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

GL_VERSION: 4.6.0 NVIDIA 560.81

GPUDeviceEnabled: false

OGLEnabled: true

[shortened by Mod.]

[Ian Lyons]

DirectX: NVIDIA GeForce RTX 3050 Ti Laptop GPU (32.0.15.6081)

Init State: GPU for Image Processing supported by default

User Preference: Auto

The two bold GPU related lines from your System Info indicate that your computer is running with limited GPU acceleration. This is probably due to having only 4GB of VRAM available.  Full GPU acceleration requires a minimum of 8GB VRAM.

[dj_paige]

What is the size in pixels (width and height) of the original RAW images?

[robi10101298]

24MPX, 6016X4016. And also 16MPX 4928x31xx something. 

[dj_paige]

Do the first masks that you apply to a photo work at the expected regular speed, and the later masks get slow ... or is the first mask you apply to a photo slow?

[robi10101298]

First second third forth fifth masks are fine, after this, it's starting to work really really slow 

[dj_paige]

Unfortunately, there is such a thing as too many masks, because of the way Lightroom Classic handles the successive edits and masks, it can reach a point where the hardware can't really keep up (which seems to be what you are describing), especially if the masks are complicated masks.

Some things you can try:

• Lens corrections as the very last editing step, after all the masks
• Faster GPU
• Use Photoshop

[GoldingD]

Watching your video. I notice that the image selected is a Enhanced DNG file.Do you have the same issues if you say, copy the Develop Settings (selecting the masks) from the DNG, and applying (Paste) them into the original RAW (or a virtual copy of the RAW)?

This may only apply if the DNG wound up being much larger than the original RAW (and commonly if you do not go all bonkers in the Enhance, or not select super, it may actually be smaller)

[dj_paige]

If you have used the LrC Super Resolution feature, and then are trying to do brushing, then I have asked the wrong question. The right question is: how many pixels (width and height) is the enhanced image?

And if you are using Super Resolution, this increases the stress on the GPU for doing AI masks, and not surprisingly it starts to slow down the more masking you do.

[robi10101298]

I didn't used super resolution, only brushes to make some different edits. 

[dj_paige]

Ok, sorry for the misunderstanding. Then I stick with my previous explanation.