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0 votes
0 answers
130 views

Viewport rendered camera differs from rendered camera, which is like fish-eye

I have scene motion tracked. Can't understand why rendered image (like fish-eye lens) differs so much from rendered picture in viewport mode?
PedroVon's user avatar
1 vote
0 answers
58 views

Object not visible in Cycles render

Basically I am working on a small project where i wanted to place a 3d mobile in a Footage. I captured the footage which included the small reference pieces for tracking. I tracked the camera in ...
Nallella Shashank's user avatar
0 votes
1 answer
130 views

How to optimize nodes and view layers created with motion tracking "set scene"

I have not used Blender in a long time but am working at learning some video applications for the software. what I have done is taken a sample video with a fair amount of camera motion and am learning ...
Arthur's user avatar
  • 73
2 votes
1 answer
2k views

Automate the rotation of camera around an object with python

I have a 3D model of a liver and I wanted to get the rendered images of the model from various angles like the ones shown below. The path the camera would traverse would be roughly circular/...
cronin's user avatar
  • 51
0 votes
0 answers
174 views

Object won't render over tracked background image

I've been working on an animation trying to incorporate animation into the background images.I don't know the reason why it won't render the arm. I tracked and solved the motion in the movie clip ...
Clueless Seahorse's user avatar
0 votes
1 answer
600 views

Rendered image doesn't show what Rendered Viewport shows... (pictures below) [duplicate]

It's kind of an interesting result. Here is how render viewport should look on frame 1: Here is what happens when I press F12: It's like I have a second camera (although I don't) somewhere below. ...
Boyka's user avatar
  • 165
3 votes
1 answer
3k views

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 ...
rfabbri's user avatar
  • 1,243
2 votes
1 answer
897 views

Rendering Issue - Tracked Video & 3D Object Composite

When I render the scene, only the tracked video appears; the 3D objects do not render. However, the objects appear if I set my active view to rendered (Shift-Z). "Restrict Rendering" is inactive. ...
BlenderNovice's user avatar
3 votes
1 answer
5k views

Can I make a camera use the lens distortion parameters determined by camera tracking?

The camera tracking utilities allow you to specify or estimate lens distortion parameters (k1, k2, and k3). Is it possible to get the Blender camera to adopt this specific distortion? I can't find a ...
Chuck's user avatar
  • 1,090