No shader refresh with pipe

I have curve with pipe activated

I select it, the color preview changes to the first affected material

I define a new material, the color don’t change

I unselect the pipe, the sahaer is refresh and correct

This effect does not always appear.
I don’t know the command conbinaison that produce this effect.
This effect appear in Shader, Render Mode, and in Cycle mode the material remains gray
pipebug.3dm (146.7 KB)
For this file i have export the pipe with “export selected”, the bug persists.

But first change the material of pipe for produce the effect.

sys info
Rhino 6 SR6 2018-6-5 (Rhino 6, 6.6.18156.11421, Git hash:master @ 56799860400d22a41148fb77e55b1181e81ebe7b)
Licence type: Commerciale, version 2018-06-05
License details: Cloud Zoo. In use by: Jean Marie Vrecq ()

Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)
Machine name: DESKTOP-P6N61SC

GeForce GTX 1080 Ti/PCIe/SSE2 (OpenGL ver:4.6.0 NVIDIA 398.11)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 6-1-2018
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 11 GB

C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.6.18156.11421
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 6\Plug-ins\RhinoBonusTools.rhp “Rhino Bonus Tools”
E:\Application\Graphics\3d\Modeleur\Rhino\Grasshopper\Plugin\Elefront\elefront0410\ElefrontProperties.rhp “ElefrontProperties”
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.6.18156.11421
C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.6.18156.11421
C:\Program Files\Rhino 6\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 6.6.18156.11421
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.6.18156.11421
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”


I found the reason.
The selected preview use the matérial of curve. The unselected preview use the material of pipe
This effect occurs only if you affect a material before activated the pipe option.
A extended effect is that all the pipe are affected when one pipe is selected

Is it useful to write on this forum?
Or we must post the bugs to another site?


Here is the best place…


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