Grease Pencil export SVG / PDF - can create Incorrect Strokes, Layer order and Error #86973

New Issue

Sam Cogheil · 2021-03-27T10:39:27+01:00

Sam Cogheil commented

2021-03-27 10:39:27 +01:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.89

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-26 21:30, hash: 9b87d3f029
Worked: n/a

Short description of error
Firstly compliments on the work on this branch of work thus far.

All below issues noted with various attempts at PDF/SVG Exporting default Cube r/click converted to GP. PDF and SVG results appear to be similarly affected.

- View from Blender

- Result of SVG/PDF export

note: Frontmost and Rearmost 'panes' are both colored green

issues:1. Export always results inWireFrame Stokes over Fills (i.e. All strokes are shown on top of fills, effectively producing incorrect object occlusion)
2. Export sometimes resulted in incorrect Fill layer ordering (i.e. Bottom of cube is above sides in SVG layer order)
3. On different attempts (start from scratch) - sometimes the PDF export fails with: ERROR: error_no=1017, detail_no=13
4. If I start in 3D mode. Convert cube to GP. Export in default User perspective the resultant file is un-useable

queries:

Attempting to paint (tint) a single surface of the GP converted cube seems impossible - without deconstructing the cube. Otherwise the paint bleeds to any surface 'under' the tint brush. I have also tried to paint (tint) with Origin on Surface etc. Should this be possible?
An unsaved document always starts export path in 'My Documents' (which seems to be true for all other export operations too). It also does not remember last save location. Seems there is no option to set default Export path (I think)?

Exact steps for others to reproduce the error

issue: 1 & 2 (see: cubed-gp.blend, cubed-gp.svg, cubed-gp1.pdf), 3

Start in 2D mode
Add Cube mesh object
R/Click convert to Grease Pencil
File > Export > Grease Pencil as SVG / PDF

issue: 4 (see: cubed-gp2.svg)

Start in General (3D) mode
R/Click default cube, convert to Grease Pencil
File > Export > Grease Pencil as SVG / PDF
Result un-useable SVG/PDF (no dimensions and all point values are the same)

cubed-gp.blend

cubed-gp1.pdf

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.89 **Blender Version** Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-26 21:30, hash: `9b87d3f029` Worked: n/a **Short description of error** Firstly compliments on the work on this branch of work thus far. All below issues noted with various attempts at PDF/SVG Exporting default Cube r/click converted to GP. PDF and SVG results appear to be similarly affected. ![cubed-gp_blend.png](https://archive.blender.org/developer/F9911518/cubed-gp_blend.png) - View from Blender ![cubed-gp_svg.png](https://archive.blender.org/developer/F9911517/cubed-gp_svg.png) - Result of SVG/PDF export note: Frontmost and Rearmost 'panes' are both colored green ***issues*:**1. Export always results in**WireFrame Stokes over Fills** (i.e. All strokes are shown on top of fills, effectively producing incorrect object occlusion) 2. Export sometimes resulted in **incorrect Fill layer ordering** (i.e. Bottom of cube is above sides in SVG layer order) 3. On different attempts (start from scratch) - sometimes the PDF export fails with: **ERROR: error_no=1017, detail_no=13** 4. If I start in 3D mode. Convert cube to GP. Export in default User perspective the **resultant file is un-useable** ***queries*:** 1. Attempting to paint (tint) a single surface of the GP converted cube seems impossible - without deconstructing the cube. Otherwise the paint bleeds to any surface 'under' the tint brush. I have also tried to paint (tint) with Origin on Surface etc. Should this be possible? 2. An unsaved document always starts export path in 'My Documents' (which seems to be true for all other export operations too). It also does not remember last save location. Seems there is no option to set default Export path (*I think*)? **Exact steps for others to reproduce the error** issue: 1 & 2 (*see: cubed-gp.blend, cubed-gp.svg, cubed-gp1.pdf*), 3 - Start in 2D mode - Add Cube mesh object - R/Click convert to Grease Pencil - File > Export > Grease Pencil as SVG / PDF issue: 4 (*see: cubed-gp2.svg*) - Start in General (3D) mode - R/Click default cube, convert to Grease Pencil - File > Export > Grease Pencil as SVG / PDF - Result un-useable SVG/PDF (no dimensions and all point values are the same) [cubed-gp.blend](https://archive.blender.org/developer/F9911532/cubed-gp.blend) ![cubed-gp.svg](https://archive.blender.org/developer/F9911528/cubed-gp.svg) [cubed-gp1.pdf](https://archive.blender.org/developer/F9911515/cubed-gp1.pdf) ![cubed-gp2.svg](https://archive.blender.org/developer/F9911516/cubed-gp2.svg)

Sam Cogheil commented

2021-03-27 10:39:27 +01:00

Added subscriber: @SimplSam

Antonio Vazquez commented

2021-03-27 12:21:57 +01:00

Added subscriber: @antoniov

Antonio Vazquez commented

2021-03-27 12:21:57 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Antonio Vazquez commented

2021-03-27 12:21:57 +01:00

I think the problem is that you expect something different of what the tool does. The export is not checking occlusion, just export all Strokes, visible or not. If you want to export only visible geometry and check occlusion, add a LineArt modifier to cube and export that data.

Philipp Oeser removed the

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Grease Pencil export SVG / PDF - can create Incorrect Strokes, Layer order and Error #86973