Questions tagged [camera]
The camera is an object which defines a point of view in 3D space for the context of rendering. The camera also has settings for depth of field (DoF) and other effects/settings real cameras have.
2,266
questions
2
votes
1
answer
268
views
Camera Shadow in Cycles live render and final render?
This might be a simple fix, however I have never done close up stills or animations before.
I just started building a logo animation for the company I work for. Barely even getting around to ...
6
votes
2
answers
3k
views
capturing user view movements as a camera?
Here's a question just for the sake of curiosity...
I was watching the new Damon Albarn video, the one that features his 3d head. And for the major part of the video it just looks like someone is ...
- 1,035
1
vote
2
answers
2k
views
How do I do a third person camera in the Game Engine?
I've had problems with getting a third person camera to rotate correctly. I've tried taking first person camera python scripts and modifying them, as well as third person camera scripts already on the ...
1
vote
1
answer
647
views
Render camera view like 3d view?
Ive come across this problem here : When i set my camera at the position which looks , i render it and it looks stretched and not so good . What camera settings should i have on?
As you can see , on ...
- 3,807
1
vote
1
answer
710
views
My camera won't zoom after it reach certain distance of zoom [duplicate]
My camera will not let me zoom in anymore after I zoom in on a huge obj. I know it is probably designed that way so we can zoom in anymore after certain amount,but I want to know if I can break that. ...
- 221
7
votes
1
answer
3k
views
How to set a custom 4x4 projection matrix in Blender
I have seen some questions to this topic but all of them are not satisfactory for my problem.
Is it possible to set a custom 4x4 projection matrix in Python to use for rendering in Blender? I'm not ...
- 71
8
votes
1
answer
33k
views
Active camera have a short view distance,how do I increase it? [duplicate]
For some reason when I render or turn into active camera mode the mesh obj disappear as I move farther. I need help on how to increase that view range.
- 221
3
votes
1
answer
445
views
Render subsection, produce full resolution image
Background
In an animation, text scrolls horizontally across the screen (from left to right), stopping on the far right. For example:
The background is transparent and no other objects are in the ...
- 853
4
votes
1
answer
2k
views
How Do You Have Objects Stay In Front Of The Camera While It's Moving?
In other words, if you set keyframes for the camera, then between the keyframes it's difficult to determine where to (for example) quickly put text in front of the camera while it's moving. Is there ...
- 729
7
votes
1
answer
20k
views
Some Data Failed to Reconstruct, Motion Tracking
I added tracks and stuff, but then when I tried to solve motion track, there was a error that said:
Some Data Failed to Reconstruct
and it also said to look into the console for details, which I ...
- 143
8
votes
2
answers
7k
views
how to take images with multiple cameras with Script?
To be clear i want a script, which produces what i am describing below.
I want to iterate through all the cameras in my scene where each one renderes an image. I can do this manually by rendering with ...
- 681
40
votes
4
answers
95k
views
Is there a Way to Align Camera to View and Fit the View?
Pressing Ctrl Alt NumPad 0 causes the camera to teleport over and align itself to the current view in the 3D viewport.
However, it usually takes up only a small portion of the view, meaning that you ...
- 485
8
votes
1
answer
5k
views
Blender 2.70 Fly Mode Camera: How Do I Change the Camera "Height" For Gravity?
In the new 2.70 fly mode, pressing TAB causes the camera to fall and hit any relatively flat surface (in Z axis). However, when viewing scaled scenes at an arbitrary scaling, the camera falls really ...
- 485
12
votes
3
answers
33k
views
Ideal camera settings to approximate human eye?
As far as things such as Focal Length, Sensor Size, etc., what are the ideal camera settings in blender that most closely approximate the human eye? Right now, everything in my scene seems like it is ...
- 1,578
3
votes
1
answer
2k
views
Why does camera this tracking fail completely even when the solution value is very low?
The attached animated gif shows some frames of a video with a mesh box placed at each tracking marker used to successfully track (solution error <.4) an 800 frame chunk of video.
The point is to ...
- 1,717
6
votes
1
answer
2k
views
Understanding Fisheye
I set up a basic scene with a fisheye camera aimed at a sphere, with another sphere vertically above the camera, and another to the right (all three at the same distance):
(Note: Need that top ...
- 3,881
1
vote
0
answers
614
views
Moving and using cameras in the same Python script (potentially over multiple logic ticks)
I've been working on a Python script that does some 3D processing on some data I have, without actually rendering anything (I want to take advantage of the rayCast ...
- 61
7
votes
1
answer
4k
views
Camera angle should follow path angle
(I'm a blender beginner but know a handful of techniques with other similar programs/systems)
I've created a NURBS to make a tracking shot. Creating a follow path object constraint on the camera lets ...
- 173
6
votes
1
answer
8k
views
Change camera field of view on keyframe?
I need the camera to be able to zoom in (field of view) on a certain frame.
However, when I do that it effects all the frames and isn't good at all.
Is there any way possible to make it so that on ...
- 3,807
7
votes
1
answer
2k
views
Python: Convert a point into camera-space (BGE)
For a particular object and a particular camera, I wish to convert each vertex into camera space, perform some maths on it and convert it back.
Specifically I need to convert the vertex first into ...
- 3,881
12
votes
3
answers
15k
views
Find active camera from Python
I could just use:
obj_camera = bpy.data.objects["Camera"]
to get the camera, but it is possible to have a scene with multiple cameras.
So if that is the case, ...
- 3,881
2
votes
1
answer
135
views
Adjust the camera view actually separate all my objects [duplicate]
I would like to adjust the camera view, so I press the CtrkAlt0 to switch to the camera view window, then I try to adjust the camera window.
Then, I press the G key, and try to move the view window ...
- 267
1
vote
1
answer
216
views
pointInsideFrustum not working correctly
I've been working with bge and specifically the KX_Camera class to check if points are within the viewing frustum, but even when ...
- 61
2
votes
2
answers
190
views
What is the logic to having an axis labeled Z and also having Z refer to distance from the camera?
What is the logic to having an axis labeled Z and also having Z refer to distance from the camera? It seems like an easy way to confuse people. Is this due to the conjunction of two different lexicons,...
- 16.5k
7
votes
2
answers
4k
views
How to set cameras type to Orthographic with python scripting
I'm trying to add some cameras to my scene that are orthographic. For this I am using:
...
- 681
1
vote
1
answer
3k
views
Change imported model orientation
This is what I get when I import a character in Blender :
As you can see the character is not in the right position. I would like to see it "standing".
Can I rotate the camera like this ? (here I ...
- 11
4
votes
2
answers
3k
views
Custom nonlinear distortion lens
Is it possible to create a custom nonlinear distortion lens in Blender?
I'm assuming that Blender superimposes a rectangular grid in front of the eye, and fires out a ray through the center of each ...
- 3,881
2
votes
1
answer
1k
views
world_to_camera_view incorrectly centering on object
When I plot points of a mesh to 2d using bpy_extras.object_utils.world_to_camera_view the object is centered to the camera. However the actual camera in 3d mode the ...
- 155
4
votes
2
answers
5k
views
Why can I see through my objects?
When you fly through your Blender 3D world, you can fly through things. However, sometimes I fly through objects, and before I even get close to them, the objects start cutting off(visually). See ...
3
votes
1
answer
470
views
Dynamically create camera in the BGE?
Is it possible to do this in 2.6? I'm trying to dynamically create cameras. Looking around the API reference I found KX_Camera and ...
- 61
0
votes
1
answer
915
views
'Matrix' object has no attribute 'z' in world_to_camera_view
I'm trying to use the following code to get 2D points out of Blender. Ultimately my goal is to generate HPGL for a pen plotter but for now I'll be happy with a printed list of coordinates.
Whenever ...
3
votes
1
answer
2k
views
Does Camera.view_frame() return the correct size of near clip plane?
I am writing a toy operator which select the visible vertices of a mesh from active camera.
My approach is to do a perspective projection on vertices of that mesh to NDC(Normalized Device Coordinates....
- 415
1
vote
2
answers
2k
views
I would like to generate a particle star field that I could keep as static background
I've tried the particle system to generate a star field and it works fine for single frame renders. Now I'm working on a 10 second film logo splash and I cannot get the star field to remain static ...
- 895
6
votes
1
answer
2k
views
How can I set a custom projection matrix for rendering?
How can I set a camera projection matrix? I want to render a perspective like the old SimCity 1989:
- 201
6
votes
1
answer
7k
views
How to change the camera used for render?
I have 2 cameras in my scene, and want to use one for rendering an animation. Despite defining it as the active camera and playing with the "lock" camera to view button, my render is still made from ...
- 63
2
votes
4
answers
3k
views
Can I constrain an object size to Camera angle of view?
After I import "Images As Planes" (using addon) I would like to place the images in front of the camera like a rostrum, making the corners match the camera frame. Or perform the best fit of the height ...
- 8,916
10
votes
2
answers
818
views
Path for camera from motion equation
Is there any option in blender to define path as equation?
I need to move camera by specific equation of motion. This equation is described as follows:
...
- 103
2
votes
0
answers
1k
views
Black edges artifacts in renders on edges of geometry? [closed]
I get these weird black edges in renders. I don't know what the cause of it is. I've gotten them before with really close up shots and low focal lengths, but this image only has a focal length of 25 ...
- 101
17
votes
5
answers
125k
views
How to scale the cameras view bounds?
The current issue is that I need more space to the right for my text, but scaling the camera to capture more of the area won't work. Why is this so?
This is what I wish to achieve:
But I am stuck ...
- 1,145
6
votes
1
answer
1k
views
Each camera may always keep the same resolution?
I have an object with different cameras that these have different resolutions, but every time I make a render, the camera has changed the resolution of the previous camera, is it possible that this ...
- 1,295
2
votes
0
answers
579
views
Combine depth images from two cameras using the world matrix
In my simple scene I have a very simple model and two cameras. From each camera I know the external parameters Pi (from bpy.data.objects['Cam0'].matrix_world) and ...
- 335
6
votes
4
answers
987
views
How can I analyze whether my camera is looking up/down?
The question is exactly the same as the title: How can I analyze whether my camera is looking up/down? :)
A bit of explanation: I am writing a script that handles both 3rd and 1st person view, and ...
- 71
43
votes
1
answer
197k
views
How do I increase the render distance?
I have created a simple model here
When rendering it the end of it is cut off
How can I get the camera to render a longer distance?
- 7,016
7
votes
1
answer
2k
views
Multiple scenes and material with pass index
I am trying to create the effect where something is bigger on the inside than on the outside, just like the Doctor Who's Tardis.
I have two scenes, one inside which is just some objects and one ...
- 1,869
3
votes
1
answer
722
views
Script skew camera in game engine
I want to make my camera to act like my illustration below with just some python scripting, because I want this to be changed during runtime. This is for a school project.
I'm very sceptic if this is ...
0
votes
1
answer
3k
views
How to remove background? [closed]
I wish to remove the background of these videos: https://skydrive.live.com/redir?resid=117AB4E465BB25B0!25610&authkey=!AFwzaPNg8TirZQ8
However, sometimes the camera moves up and other things can ...
- 1,145
14
votes
2
answers
32k
views
Viewport pivot point changed from scene objects to around viewport camera origin
I am starting to learn using blender, and at some point I managed to do something to the 3D view camera.
Usually the camera orbits around an object, but now the rotation seems to happen (atleast very ...
- 243
137
votes
4
answers
259k
views
How can I make a camera the active one?
I have multiple cameras in a scene. What I want to do is to change which one is active. This way I can view the scene from different angles. How would I do this?
- 3,247
28
votes
2
answers
39k
views
How can I animate the camera in a perfect circular rotation around a fixed position?
I have an object at a fixed position in 3D space. I would like the camera to circle around it while facing it. I want to path of the camera to be circular in 2D, meaning that it does not move up or ...
- 14.6k
16
votes
1
answer
6k
views
Camera Tracking markers
I want to do some camera tracking. The things that I will be filming does not have a lot of detail on it, so that I will have to place some extra markers here and there. I am not sure what kind if ...
user320