[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2024-01-22 Thread David REVOY
https://bugs.kde.org/show_bug.cgi?id=423788

--- Comment #10 from David REVOY  ---
Hey Tiar, the fast mode option is as fast in 5.x as it was in 4.x. 
No regression here. 

The slow one is the "new" preview mode that appeared for 5.x and was made the
default.

But this last one has "in layer stack rendering", a cool feature over the "fast
mode". 

Unfortunately, Liquify is very laggy and unusable in this new 5.x default mode.
I personnaly set performance to 'Fast' right after Krita 5.x because I know my
way in Tool Options[1] and never looked back.

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[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2024-01-22 Thread Tiar
https://bugs.kde.org/show_bug.cgi?id=423788

--- Comment #9 from Tiar  ---
So what is the conclusion - when using "Fast" preview in Krita 5., is it much
slower than Krita 4., or around the same speed (no mater if very slow on higher
spacing)? Asking to be sure whether there has been any regression, or is it
just a normal (albeit slow) performance and this report is a wish for Liquify
to go faster.

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[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2021-12-05 Thread Stig
https://bugs.kde.org/show_bug.cgi?id=423788

--- Comment #8 from Stig (Rakurri)  ---
(In reply to Stig (Rakurri) from comment #7)
> (Sorry for the late reply, have been very occupied with exams.) It seems to
> work about the same on fast in both versions. I noticed though that my
> spacing was very high. And when the spacing is high I notice that the
> liquify seems to push the pixels in the wrong way the first dab(s) a lot of
> the time. This to me made it look much less performant. Is that effect
> visible in the videos I sent? It makes the liquify much less usable on high
> spacing, although it is not noticeable on low spacing
This happens for both 4.4.8 and 5 beta3

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[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2021-12-05 Thread Stig
https://bugs.kde.org/show_bug.cgi?id=423788

--- Comment #7 from Stig (Rakurri)  ---
(Sorry for the late reply, have been very occupied with exams.) It seems to
work about the same on fast in both versions. I noticed though that my spacing
was very high. And when the spacing is high I notice that the liquify seems to
push the pixels in the wrong way the first dab(s) a lot of the time. This to me
made it look much less performant. Is that effect visible in the videos I sent?
It makes the liquify much less usable on high spacing, although it is not
noticeable on low spacing

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[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2021-12-02 Thread David REVOY
https://bugs.kde.org/show_bug.cgi?id=423788

David REVOY  changed:

   What|Removed |Added

 CC||i...@davidrevoy.com

--- Comment #6 from David REVOY  ---
Hi, 
I guess these bugs report of @Stig (Rakurri) , @holtein and @Stephen happens
because of a more fundamental change of default in the 5x transform tool: the
new default 'in stack rendering'  that is − indeed− super slow (especially in
liquify, especially on recursive groups in liquify too). I had same issue once
I started to adopt 5.x.

Can you try to go to the "tool options" panel after selecting the "transform
tool", and turn the "Preview" setting (on top) to "Fast"? 
Does it restore the speed you knew on 4.x ? (it should, "Fast" was the setting
by default in 4.x)

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[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2021-12-01 Thread Stig
https://bugs.kde.org/show_bug.cgi?id=423788

Stig (Rakurri)  changed:

   What|Removed |Added

 CC||sti-n...@online.no

--- Comment #5 from Stig (Rakurri)  ---
Can confirm on Krita 5 beta3, it is extremely slow on my Windows 10 PC, it
takes a very long time to see results of the liquify, the tool most often push
the pixels at random it feels like and do not move the pixels around correctly,
Krita might even freeze a bit while using the tool. It worked fine in Krita
4.x. This happen on every file. I have a pretty modern 2019 desktop machine, so
I think this is affecting a lot of people, I think the bug reports importance
should be set much higher than "wishlist"

Here is a video of the problem https://imgur.com/a/iXmBffo

System Info System Info
Krita

 Version: 5.0.0-beta2 (git a642eb0)
 Languages: en_US, en, en_US, en, en_US, en, en_US, en, nn_NO, nn, en_US, en
 Hidpi: true

Qt

  Version (compiled): 5.12.12
  Version (loaded): 5.12.12

OS Information

  Build ABI: x86_64-little_endian-llp64
  Build CPU: x86_64
  CPU: x86_64
  Kernel Type: winnt
  Kernel Version: 10.0.19044
  Pretty Productname: Windows 10 (10.0)
  Product Type: windows
  Product Version: 10

OpenGL Info

  Vendor:  "Google Inc." 
  Renderer:  "ANGLE (NVIDIA GeForce RTX 2070 SUPER Direct3D11 vs_5_0 ps_5_0)" 
  Version:  "OpenGL ES 3.0 (ANGLE 2.1.0.57ea533f79a7)" 
  Shading language:  "OpenGL ES GLSL ES 3.00 (ANGLE 2.1.0.57ea533f79a7)" 
  Requested format:  QSurfaceFormat(version 3.0, options
QFlags(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8,
stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer,
swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile 
QSurfaceFormat::CompatibilityProfile) 
  Current format:  QSurfaceFormat(version 3.0, options
QFlags(), depthBufferSize 24, redBufferSize 8,
greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8,
samples 0, swapBehavior QSurfaceFormat::DefaultSwapBehavior, swapInterval 0,
colorSpace QSurfaceFormat::DefaultColorSpace, profile 
QSurfaceFormat::NoProfile) 
 Version: 3.0
 Supports deprecated functions false 
 is OpenGL ES: true 
  supportsBufferMapping: true 
  supportsBufferInvalidation: false 
  Extensions: 
 "GL_EXT_read_format_bgra" 
 "GL_CHROMIUM_copy_compressed_texture" 
 "GL_ANGLE_program_cache_control" 
 "GL_EXT_discard_framebuffer" 
 "GL_EXT_texture_compression_s3tc_srgb" 
 "GL_EXT_texture_rg" 
 "GL_ANGLE_client_arrays" 
 "GL_ANGLE_request_extension" 
 "GL_OES_texture_npot" 
 "GL_ANGLE_texture_usage" 
 "" 
 "GL_EXT_color_buffer_half_float" 
 "GL_OES_mapbuffer" 
 "GL_OES_EGL_image" 
 "GL_EXT_shader_texture_lod" 
 "GL_EXT_texture_format_BGRA" 
 "GL_OES_packed_depth_stencil" 
 "GL_EXT_color_buffer_float" 
 "GL_OES_EGL_image_external_essl3" 
 "GL_ANGLE_framebuffer_multisample" 
 "GL_CHROMIUM_sync_query" 
 "GL_OES_compressed_ETC1_RGB8_texture" 
 "GL_ANGLE_texture_compression_dxt3" 
 "GL_EXT_debug_marker" 
 "GL_OES_get_program_binary" 
 "GL_OES_rgb8_rgba8" 
 "GL_CHROMIUM_bind_uniform_location" 
 "GL_ANGLE_translated_shader_source" 
 "GL_CHROMIUM_color_buffer_float_rgba" 
 "GL_OES_surfaceless_context" 
 "GL_EXT_texture_norm16" 
 "GL_NV_EGL_stream_consumer_external" 
 "GL_EXT_frag_depth" 
 "GL_OES_texture_half_float" 
 "GL_ANGLE_pack_reverse_row_order" 
 "GL_ANGLE_depth_texture" 
 "GL_NV_fence" 
 "GL_KHR_debug" 
 "GL_NV_pixel_buffer_object" 
 "GL_ANGLE_multiview" 
 "GL_EXT_texture_storage" 
 "GL_ANGLE_texture_compression_dxt5" 
 "GL_OES_EGL_image_external" 
 "GL_EXT_blend_minmax" 
 "GL_EXT_disjoint_timer_query" 
 "GL_ANGLE_robust_client_memory" 
 "GL_OES_depth32" 
 "GL_OES_vertex_array_object" 
 "GL_ANGLE_lossy_etc_decode" 
 "GL_OES_standard_derivatives" 
 "GL_ANGLE_instanced_arrays" 
 "GL_OES_texture_float" 
 "GL_EXT_sRGB" 
 "GL_NV_pack_subimage" 
 "GL_EXT_occlusion_query_boolean" 
 "GL_CHROMIUM_copy_texture" 
 "GL_EXT_map_buffer_range" 
 "GL_OES_texture_float_linear" 
 "GL_EXT_robustness" 
 "GL_EXT_draw_buffers" 
 "GL_OES_texture_half_float_linear" 
 "GL_CHROMIUM_bind_generates_resource" 
 "GL_CHROMIUM_color_buffer_float_rgb" 
 "GL_EXT_texture_filter_anisotropic" 
 "GL_EXT_texture_compression_dxt1" 
 "GL_EXT_unpack_subimage" 
 "GL_OES_element_index_uint" 
 "GL_ANGLE_framebuffer_blit" 

QPA OpenGL Detection Info 
  supportsDesktopGL: true 
  supportsAngleD3D11: true 
  isQtPreferAngle: true 

useBufferInvalidation (config option): false


Hardware Information

  GPU Acceleration: auto
  Memory: 40873 Mb
  Number of Cores: 8
  Swap 

[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2021-08-22 Thread Tiar
https://bugs.kde.org/show_bug.cgi?id=423788

--- Comment #4 from Tiar  ---
@stephen could you please provide:
- as screenshot or in writing: exact setting of the Liquify (like what spacing,
what size, what mode etc.)
- an example file (or, if it happens on the empty file too, just size of the
canvas + whch color model and profile do you use, if it's not sRGB).

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[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2021-08-22 Thread Tiar
https://bugs.kde.org/show_bug.cgi?id=423788

Tiar  changed:

   What|Removed |Added

 CC||174597...@qq.com

--- Comment #3 from Tiar  ---
*** Bug 441363 has been marked as a duplicate of this bug. ***

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[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2020-12-10 Thread stephen
https://bugs.kde.org/show_bug.cgi?id=423788

--- Comment #2 from stephen  ---
(In reply to Tymond from comment #1)
> On my system it's slow (because come on, we're talking 550 px at once here),
> but nowhere near how bad it is for you. On my system it's a bit slow but
> smooth, so definitely usable, even at that size. (And much bigger problem is
> the Size slider which is just unbelieveable stubborn :) ).
> 
> It might be caused by that 3rd generation CPU, which is a bit old, maybe it
> doesn't have the CPU vectorization instructions that Krita heavily uses for
> performance. (Krita, and I believe PS too, doesn't use GPU for calculation,
> only for showing the end result).

Well, by God's grace, I'll upgrade my hardware in one or two years from now.

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[krita] [Bug 423788] Liquify Tool - Utterly Slow Performance

2020-12-10 Thread Tymond
https://bugs.kde.org/show_bug.cgi?id=423788

Tymond  changed:

   What|Removed |Added

 CC||tamtamy.tym...@gmail.com

--- Comment #1 from Tymond  ---
On my system it's slow (because come on, we're talking 550 px at once here),
but nowhere near how bad it is for you. On my system it's a bit slow but
smooth, so definitely usable, even at that size. (And much bigger problem is
the Size slider which is just unbelieveable stubborn :) ).

It might be caused by that 3rd generation CPU, which is a bit old, maybe it
doesn't have the CPU vectorization instructions that Krita heavily uses for
performance. (Krita, and I believe PS too, doesn't use GPU for calculation,
only for showing the end result).

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