Linked Questions
29 questions linked to/from How to find image coordinates of the rendered vertex?
3
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answer
3k
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Python: Check if vertex is on camera field of view [duplicate]
Suppose I have the following camera perspective.
As you can see some of the Cube vertices are visible from the camera, others are not.
Is there a way from python to detect if a certain vertex is in ...
- 396
3
votes
0
answers
625
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3D Mesh Vertex to 2D Pixel Coordinates [duplicate]
I can obtain the coordinate of a mesh vertex with python via
wco = mesh.vertices[mesh_vert_idx].co
Further, it is possible to convert this coordinate system to ...
- 335
1
vote
0
answers
491
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How to get objects and mesh object vertices from camera view with Python in Blender 2.8 [duplicate]
What I want to do
I want to change the power of only the light object visible in the camera view.
I want to remove vertices to mesh objects in visible in the camera view. Not remove mesh objects, ...
- 13
1
vote
0
answers
417
views
How can I get a list with the 2D screen coordinates of visible Vertices in 3D view without having to convert 3D to 2D? [duplicate]
The bgl module allows us to obtain various information displayed in 3D Blender view.
For example, I made a script that gets the 3D coordinate where the mouse cursor hits a object:
...
- 426
29
votes
2
answers
32k
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3x4 camera matrix from blender camera
In computer vision, the transformation from 3D world coordinates to pixel coordinates is often represented by a 3x4 (3 rows by 4 cols) matrix P as detailed below. Given a camera in Blender, I need ...
- 1,243
6
votes
1
answer
3k
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Alternative to redraw_timer()
I have a script whose goal is to find all the visible vertices from the camera view. The simplest solution should work as follows:
Go Into Camera View
Update the view with ...
- 75
5
votes
2
answers
1k
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Perspective Flatten Geometry by Shrinkwrap
I have a 3D scene I need to flatten towards the cammera in order for the geometry to still appear 3D when viewed in a 2D game from the front. I've done this in Maya with the shrinkwrap method and the "...
- 185
3
votes
4
answers
2k
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Mesh silhouette as a polygon or pixels surrounded by the silhouette on the rendered image?
Here is my target application. The rendered image with rendered meshes is used in an interactive application. A user may click or point the cursor to an object on the image. Information related to ...
- 817
2
votes
1
answer
2k
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How to find all image coordinates of rendered object?
I got my object and I need to know all pixels that are displaying this object in my rendered picture.
I read about a smiliar question here.
update
I tried this code from here:
...
3
votes
1
answer
3k
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blender camera from 3x4 matrix
In computer vision, the transformation from 3D world coordinates to pixel coordinates is often represented by a 3x4 (3 rows by 4 cols) matrix P as detailed below. Given P I need code to return a ...
- 1,243
2
votes
2
answers
2k
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Python: Obtaining Object Contour Pixels
I would like to obtain the pixel coordinates of an object's outline in the currently-rendered scene, using the bpy module.
I found this, which is related, but I'm still not sure how to do it.
Has ...
- 179
2
votes
1
answer
2k
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AttributeError: 'Mesh' object has no attribute 'view_frame'
I am trying to get the pixel coordinates of the object in the rendered image in blender using the How to find image coordinates of the rendered vertex?
But I get the error AttributeError: 'Mesh' ...
- 121
4
votes
1
answer
951
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Blender scripting: Circle Selectiong in the "3D View"
In Blender2.74, I want to circle-select the vertices in the "3D View", using this: circle_select(x = 300, y = 400, radius = 30).
I found this question. So I know ...
- 75
0
votes
0
answers
2k
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How to project a point from 3D to 2D in blender?
I know how to obtain the 4x4 projection matrix of the camera in Blender, but it seems its format is different from the standard camera projection matrices. I would appreciate it if someone explains ...
- 163
2
votes
1
answer
791
views
List all occluded objects from camera
I'm trying to have a list of objects that are occluded from camera view. 'bpy.context.scene.ray_cast()' does not help since it also returns occluded verts/objects.
I have visited some other answers ...
- 53