hi , i also have some incosistent result with ExtendSrf in RH8
here is the srf before extending
here is the result with RH7 with extension lenght set to 1 mm
here is result of same command , same everything in RH8
Can you post a file with just the surface in question?
@Helvetosaur : I got rid of it and i am not able to replicate the problem at the moment.
if it happens again i will post it
Hi Filippo - there have been a couple of fixes to ExtendSrf - this might be fixed in SR4 - but please post examples whenever possible for this sort of bug or apparent bug.
-Pascal
1 Like
Hi @pascal , here it is , today the problem showed up again and here is the guilty 
again , ExtendSrf does not extend correctly in rh8 , same surface correctly extend according to inputed value on rh7
RH8 EXTEND SURFACE BUG.3dm (47.9 KB)
I’m on Rhino 8.4.24037.15001 and the problem occurs with every surface I create.
I get the correct result in the latest V7.
System Info
Rhino 8 SR4 2024-2-6 (Rhino 8, 8.4.24037.15001, Git hash:master @ bee9cb852c752350676ca6bc7f3f6946b5bbc6b7)
License type: Kommerziell, build 2024-02-06
License details: Cloud Zoo
Windows 11 (10.0.22631 SR0.0) or greater (Physical RAM: 128GB)
.NET 7.0.15
Computer platform: DESKTOP
Standard graphics configuration.
Primary display and OpenGL: NVIDIA RTX A5000 (NVidia) Memory: 22GB, Driver date: 1-18-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 551.23
> Accelerated graphics device with 4 adapter port(s)
- Secondary monitor attached to adapter port #0
- Windows Main Display attached to adapter port #1
Secondary graphics devices.
NVIDIA Quadro K2200 (NVidia) Memory: 4GB, Driver date: 1-18-2024 (M-D-Y).
> Accelerated graphics device with 4 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: 1-18-2024
Driver Version: 31.0.15.5123
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 23028 MB
Rhino plugins that do not ship with Rhino
C:\Users\martinsiegrist\AppData\Roaming\McNeel\Rhinoceros\8.0\Plug-ins\KeyShot9RhinoPlugin (ecfe8d1f-876a-460f-aa5e-3dd816936811)\1.0.0.0\KeyShot9RhinoPlugin\Rhino 5.0\KeyShot9RhinoPlugin.rhp “KeyShot9RhinoPlugin” 1.0.0.0
C:\Users\martinsiegrist\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\NVIDIADenoiser\0.4.3\NVIDIADenoiser.Windows.rhp “NVIDIADenoiser.Windows” 0.4.3.0
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 8\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\import_OBJ.rhp “Import_OBJ” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”
C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp “RhinoCodePlugin” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.4.24037.15001
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
I’ve been getting this bug also. See the attached video to see this behaviour.
Basically the surface seems to jump a little when it’s being extended.
Sometimes it seems to fix if you shrink trimmed surfaces. Usually I need to untrim and retrim the whole surface again.
systeminfo
Rhino 8 SR4 2024-2-13 (Rhino 8, 8.4.24044.15001, Git hash:master @ 5d3f86ffffae3c2ed84d21147c008b3907a40a2e)
License type: Commercial, build 2024-02-13
License details: Cloud ZooWindows 11 (10.0.22631 SR0.0) or greater (Physical RAM: 64GB)
.NET 7.0.0Computer platform: DESKTOP
Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 3070 (NVidia) Memory: 8GB, Driver date: 2-15-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 551.61
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0
- Secondary monitor attached to adapter port #2OpenGL 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: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: HighVendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 2-15-2024
Driver Version: 31.0.15.5161
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8 GBRhino plugins that do not ship with Rhino
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V7\VRayForRhino.rhp “V-Ray for Rhino”Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\SolidTools.rhp “SolidTools”
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp “RhinoCodePlugin” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\BlockEdit.rhp “BlockEdit” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”
Dear Pascal,
I have the same problem (both in Rh 8.3 and 8.4) but not for each surfaces.
as I extend the surface, it projects to another place
I attached the file
Surfaces.3dm (836.7 KB)
Best regards
Hi Christian, I know… I’ve added your comment to the bug track item.
@GaeChrisRuvio - this appears to be fixed in our latest 8.6 builds here.
-Pascal
1 Like
Hi Pascal,
I’m on the latest SR and this behaviour is still present. I noticed this bug recently, last week it didn’t appear.
Best regards
Hi @Apolato what Pascal mentioned is the latest 8.6 src. You can download and install this by enabling statistics and change updates from service release to service release candidate
If that’s no option then you can also wait for 8.6 which will be released next week if all goes well.
Hi @Gijs,
I’m sorry for the confusion.
I am now on 8.6.24093.11001 and the problem still exists.
Best regards.
@Apolato Looking at the YT again, this is not targeted at 8.6 but at 8.7, let me check
@Gijs Ah, ok, so it will be on the 8.7. As you and Pascal mentioned 8.6 I thought it was already resolved.
This bug is very very very annoying as I have to untrim and split again every surface for an extend.
Thank you,
Best regards.
@Apolato I can send you a pm with a link to a more recent internal build if that helps you, but be aware it might contain other bugs, since it is much less tested. The example surface youChristian posted does work better (though not perfect) in the latest 8.7
Thank you @Gijs if it introduces other bugs I prefer to stick with this SRC and wait for the 8.7.
Best regards.