Gradient hatch pdf print problem


I’ve got problems with gradient hatch when printing pdf (rhino PDF).

First, the hatch print preview is correct(gradient) only if the detail viewport has the world cplane and the view aligned to it. But whenever I change the cplane or rotate the view the hatch is previewed with flat grey instead.

Second, in both cases I cannot open the pdf. It says that there is a problem processing the page.

What can I do about it?

Thanks in advance,


Hi Quentin -
Please post a simple 3dm file that shows this behavior. Also, please run the Rhino SystemInfo command and copy-paste the result here.

Hi Wim,
Sorry for the late reply.
Gradient print problem.3dm (7.3 MB)

Here is a file with several gradient hatchs that are problematic to print.
First case shows that it is printed fine if it is not in a block. (Layout 1) This happens with “Rhino PDF” printer, while both are printed correctly with adobe PDF (except that transparency is not working with the latter)
Second case, some gradient are getting printed fine and others are flat instead. (layout 2-3)
I hope there’s a solution.

Rhino 7 SR16 2022-3-8 (Rhino 7, 7.16.22067.13001, Git hash:master @ aa7902c94c5aa33511e60d30f82b636be43bc85f)
License type: Educational, build 2022-03-08
License details: Cloud Zoo

Windows 10.0.19044 SR0.0 or greater (Physical RAM: 32Gb)

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 2060 SUPER (NVidia) Memory: 8GB, Driver date: 3-17-2022 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 512.15
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0
- Secondary monitor attached to adapter port #1

Secondary graphics devices.
Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 9-5-2020 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- There are no monitors attached to this device!

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 3-17-2022
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8 GB

Rhino plugins that do not ship with Rhino
C:\Users\quentinandreotti\Downloads\elefront421\ElefrontProperties.rhp “ElefrontProperties”
C:\Users\quentinandreotti\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\AMDDenoiser\0.5.3\AMDDenoiser.Windows.rhp “AMDDenoiser.Windows”
C:\Users\quentinandreotti\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\ProRender\\ProRender.Windows.rhp “ProRender”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\SolidTools.rhp “SolidTools”
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.16.22067.13001
C:\Program Files\Rhino 7\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 7\Plug-ins\RhinoBonusTools.rhp “Rhino Bonus Tools”
C:\Program Files\Rhino 7\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.16.22067.13001
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.16.22067.13001
C:\Program Files\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 7\Plug-ins\Alerter.rhp “Alerter”
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.16.22067.13001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.16.22067.13001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\BlockEdit.rhp “BlockEdit” 7.16.22067.13001
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”

I was running into a similar issue. More on the PDF not reading side of the problem. I found that if you switch from Rhino PDF to the Adobe PDF in the print menu there is more success at getting the hatch gradients to open in other software and print.

Not ideal but it has been working so far.

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Hi -

Dharman pointed to this thread that has remained unanswered.

A lot of water under the bridge since then, so, FWIW…
I tested this on a current inhouse Rhino 8 version and wasn’t able to reproduce the issue there.

Dharman’s file is an example of a PDF that can’t be opened after export. This is part of what is on the list as RH-79888 Print: Printing gradient hatch issue
If you have other cases where such PDF is being created by Rhino PDF, please post the 3dm file.

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