All Questions
237
questions
1
vote
0
answers
325
views
How to properly combine Rotation Quaternion with Matrix for viewport/RegionView3D manipulation?
(Copy and pasted it from another place since I wasnt getting any replies)
Hi,
I am working on an addon that uses external application's touch gesture to send information to a socket, which then is ...
0
votes
1
answer
282
views
How to project 3D point into camera under the influence of focal length and use Python?
The manual introduces the world_to_camera_View maps 3D to 2D, but ignores the influence of focal length parameters. Is there a method with focal length parameters in blender API? Is it possible to ...
- 93
1
vote
2
answers
322
views
Text in 3D view linked to an object
I'm looking for a way to display 2D text based on an object's position.
I'm not an expert in blender python, so I couldn't figure out by myself how the Measureit Addon does it. It's very similar to ...
0
votes
1
answer
81
views
Why can't vertex indices be sorted by Z_VIEW in blender python？
Run the following code:
import bpy
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.mesh.sort_elements(type='VIEW_ZAXIS', elements={'EDGE'})
python console prompt ...
- 25
1
vote
1
answer
649
views
UV Project From View script fails when using bpy.ops.view3d.view_axis()
I've been trying to make a small python script that among other things project unwraps UVs using a specific axis and projection type and it fails to project the UVs at the 3D View's manipulated camera ...
- 197
3
votes
1
answer
2k
views
Align active camera to view using python
To align active camera to match the current view I could simply pan, zoom or rotate the view. Select active camera from outliner then hit Ctrl + Alt + Numpad 0. I only wonder, is there a way to write ...
- 169
1
vote
2
answers
591
views
What's the value of sensor width for a default 3D View?
I'd like to calculate FOV in degrees of the default 3D Viewport (not a camera). According to this link the formula requires me to provide sensor width and focal length. Focal length can be seen in the ...
- 83
1
vote
0
answers
911
views
Visualizing a 4D object in 3D space using Blender
Out of curiosity i am trying to visualize a 4D object in 3D space in Blender. I got the idea from and used some parts of the work done by Oleg Rybkin which can be found here: https://github.com/...
- 31
2
votes
1
answer
137
views
What is the performance cost of adding a SpaceView3D draw callback?
In the conversation in comments to Driver based on shading types/ change boolean when switching shading types an argument has been made that the draw callback is called very frequently, and therefore ...
- 38.7k
1
vote
1
answer
184
views
How do I access the shading type in a message bus handler for Viewport Shading Mode changes?
I'm trying to register a msgbus handler for a callback that is called when the View3D area's shading mode changes. I know from testing with this class that ...
- 33.3k
3
votes
1
answer
313
views
How do I scale object location without scaling the object itself (Transform affect only location)
I'm trying to write a part of a script that would scale object locations away from the 3d cursor (so the object size itself wouldn't change, but the object would move away from the 3d cursor). It ...
- 31
4
votes
1
answer
202
views
How do I change viewport alignment of newly created objects with a python command?
I'm making a custom pie menu with a pie editor addon and wanted to have some buttons with options that will let me change the default alignment of newly created objects from "world", "...
0
votes
1
answer
122
views
How to add images to a deck of cards in an automated way?
I am adding png to material for each Plane Object, problem is I have 1000 of these plane objects for 1000 images to import for each one.
Is there an addons or script I could use for that please ...
0
votes
1
answer
112
views
How to place an object higher on the plane via Python?
I need to make an image in which there are two objects when one of them is located regularly on the plane but the second is actually a bit on top of the first one when they do not touch each other. It ...
- 3
1
vote
1
answer
829
views
Combine single wavefront .obj objects into an animation sequence
Given many .obj files that represent the 3D pose estimation for each frame of a clip, how to combine the .obj files to form an ...
- 61