Raster printing

i have a large 3d and i want to print in raster mode (i’m using “blueprint” display mode to present it directly with this style).
i don’t know how to get smooth curves, now i’m getting this result:

curiously, the first time i printed i got a best result, it would be smooth enough for me, but i don’t know how to get the same lines as the first time!

both printings are extracts from a 50x70 poster with 300ppi
i tried changing opengl antialiasing to 8x but there was no difference. i don’t know what options i have to play with the smoothness of the lines.

thanks and regards :slight_smile:

maybe moving the object close to the world origin?

i centered the 3d to the world origin and nothing changed. i tried changing rhino pdf too and i get very thick lines with pdf architect and bullzip pdf.
still can’t smooth that sawtooth print in technical mode

Have you changed your OpenGL anti alias settings in Rhino?

i tried with 8x antialiasing but the printing didnt change so i assumed that the antialiasing is only applied to the display view in rhino. in fact, the curves in the software are much better smoothed than the print

Hi - could you post that model?
Also, please run the Rhino SystemInfo command and copy-paste the result here.
-wim

I could send you the model in private (if possible) cause is material for a contest.
The systeminfo:

> Rhino 6 SR23 2020-2-24 (Rhino 6, 6.23.20055.13111, Git hash:master @ 8106edaa648ba209a8fc587f0f7fcccbaac09169)
> License type: Educacional, revisión 2020-02-24
> License details: Cloud Zoo.  In use by: Kiros ()
> 
> Windows 10.0 SR0.0 or greater (Physical RAM: 16Gb)
> Machine name: DESKTOP-1RNGQBU
> 
> Hybrid graphics system.
> Primary display: Intel(R) UHD Graphics 630 (Intel) Memory: 1GB, Driver date: 9-25-2019 (M-D-Y).
> Primary OpenGL: NVIDIA GeForce GTX 1660 Ti (NVidia) Memory: 6GB, Driver date: 2-24-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 442.50
> 
> 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: 2-24-2020
>   Driver Version: 26.21.14.4250
>   Maximum Texture size: 32768 x 32768
>   Z-Buffer depth: 24 bits
>   Maximum Viewport size: 32768 x 32768
>   Total Video Memory: 6 GB
> 
> Rhino plugins
>   C:\Program Files\Rhino 6\Plug-ins\Commands.rhp	"Commands"	6.23.20055.13111
>   C:\Program Files\Geometry Gym\Rhino3d\BullAnt.rhp	"bullant"	1.4.4.0
>   C:\Program Files\Rhino 6\Plug-ins\rdk.rhp	"Renderer Development Kit"	
>   C:\Program Files\Rhino 6\Plug-ins\AnimationTools.rhp	"AnimationTools"	
>   C:\Program Files\Rhino 6\Plug-ins\Tibidabo\Tibidabo.rhp	"Tibidabo"	
>   C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp	"Rhino Render"	
>   C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp	"RDK_EtoUI"	6.23.20055.13111
>   C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp	"Renderer Development Kit UI"	
>   C:\Users\alsan\AppData\Roaming\McNeel\Rhinoceros\6.0\Plug-ins\PanelingTools (6caed836-bc06-4ebc-b1fd-e10886a0dc94)\2018.12.17.906\PanelingTools.rhp	"PanelingTools"	
>   C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp	"Snapshots"	
>   C:\Program Files\Rhino 6\Plug-ins\IronPython\RhinoDLR_Python.rhp	"IronPython"	6.23.20055.13111
>   C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp	"RhinoCycles"	6.23.20055.13111
>   C:\Users\alsan\AppData\Local\Programs\Enscape\Bin64\Enscape.Rhino6.Plugin.dll	"Enscape.Rhino6.Plugin"	0.0.20048.1746
>   C:\Program Files\Rhino 6\Plug-ins\Grasshopper\GrasshopperPlugin.rhp	"Grasshopper"	6.23.20055.13111
>   C:\Program Files\Rhino 6\Plug-ins\Tibidabo\Lands.rhp	"Lands Design"	
>   C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp	"Toolbars"	6.23.20055.13111
>   C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp	"3Dconnexion 3D Mouse"	
>   C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros 6\VRayForRhino.rhp	"V-Ray for Rhino"	
>   C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp	"Displacement"