This script allows to sketch surfaces using grease pencil without much precision needed from the user. Either building an object from the ground up or for doing retopo.
Here is a first version of the video demo. It's a shorter timelapse, to just see the features:
And this version is the same video but is more a tutorial, explaining some concepts:
Hamish made a transcription of the video-tutorial with each step explained in a PDF file. For those who prefer a step by step explanation in text format instead of going back and forth with a video, will find this PDF file useful..
viralata made a tutorial about using this script together with topographic maps to build terrains from those 2D maps into 3D:
Thanks for sharing!
DOWNLOAD the script (v0.8 Beta):
It was tested with Blender 2.5 revision 27974 (later than Alpha2). Find a fresh Blender version at www.graphicall.org
Some known issues:
- The object being sketched must not have object mode transformations. Meaning, it must be in location X=0, Y=0, Z=0, rotation reseted (ALT+R) and Scale reseted (ALT+S).
- If there are no strokes and hit "Add surface" the object may be duplicated.
- The surface is first done as a separate object and then joined, and a "Remove Doubles" is performed to attach the mesh. This will likely change in the future, but in the meantime be aware of that remove doubles if you don't want it to performed on your mesh.
If you find a bug and would like to report it feel free to post it here.
Thanks to the people who helped with a couple of concepts, like Crouch and Abidos with edge orientation calculations (it was for this one ) , and Pontiac with faces generation from a list of verts.
A grease pencil video tutorial that may help get a grasp of the actual grease pencil features:
EDIT: seems that in newer builds the hotkeys script needs a small adjustment. Check post #22 of this thread to see how to solve it.