It's seventh try. Tracking of full sized footage took too long, so I've downscaled it. I've used the Autotrack plugin. The tracker settings are default, except for model set to Perspective. And for plugin, distance set to 60 and frame separation to 1. Camera settings set to 24mm in 35mm equivalent, then preset for my size of camera. Keyframe A is 60 and B is 90. Using Clean Tracks I've managed to set the tracking error to about 0.4. I've noticed that in place where the camera trembles, markers on the ground die quickly.
373
Whenever I do camera tracking in Blender the reconstruction is always zooming out or not on the axis. I have a great quality camera, but the end results of the camera tracking always has the model sliding. If you have a solution please tell me.
63465
I've been trying to track a footage taken by my Samsung Galaxy Note 8.0 (GT-n5100) tablet. It has a good 5 mp camera and I tracked the footage well. But the problem arises at the time of solving the camera. The solve error is too high (more than 2). I don't know the width the tablet's camera sensor or the focal length or any other specifications. So my question is, has anybody been able to solve the camera on footage shot by a smartphone and if yes,  what camera and lense specs did you feed to the Blender?
102979
Any idea of why my viewport preview of the simulation stops at 250 frames? (as you can see on the orange line on the timeline)  Am I maybe missing any kind of configuration?..  It's a rigid body simulation.. e.thing works fine but the preview freezes at 250 frames.... No keyframes on the simulation, only on the colliding object that has an infinite loop rotation.....    Is it maybe because of motion paths setting?  It is set on 300......       Update:  Problem solved! I missed this tab of configurations!!
51389
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 have to move the camera back to fit the same view you had before. Is there a way to set the camera view to fill more of the 3D viewport when using this feature?
28443
I have been playing around with camera tracking and I'm happy enough with the tracking and alignment of the markers with the footage when viewed through the camera.    The problem is, when I am not looking through the camera I can see that the grid isn't aligned to the camera.    How do you correctly align the grid to this tracked camera? I have set a floor and two points for scale, also clicked setup tracking scene, but this just added cube and plane which were on the grid.
109537
I am new to photography and I was hoping to go take some pictures of star trails this weekend. I just bought this camera this week and I realized that the highest shutter speed is 15 seconds. Is there any way to keep it open longer? I don't think this camera supports bulb mode.
35310
I'm using Blender 2.77.  When I import footage into the VSE with the correct frame rate (23.98fps) every single audio strip is 2 frames longer than the corresponding video clip.  I think the problem is that my recordings are actually 23.97fps.  The issue with that is that when using the custom fps setting there are not enough decimal places to input a value that will result in a frame rate of 23.97 (i.e. 1.0015).  I'm not positive this will fix it but I think it should.  Does anyone else have any ideas or experience with this issue?
45517
I'm modeling a car driving along a road(speeds up, slows down, and stops at traffic lights to wait till the lights turn green, etc.) What is the best way to animate the camera path for the following scenario?   The camera starts moving from point A, and it takes 500 frames to get to point B. During this 500 frames, the camera first gradually speeds up, then moves at a constant speed, and finally slows down to a complete stop at point B. The next 50 frames, the camera will stay at point B. From frame 551, it takes another 500 frames to get to point C from point B. The camera experiences the same motion as described in #1 (speeds up, constant speed, slows down, then stop.) Again, the camera will stay at point C for another 50 frames.  Point C to D is a curve path ( added using Shift + A -> add path). I want the camera to move along the path from frame 1101 to frame 1200. The camera should have the same motion as before(speeds up, constant speed, slows down, then stop.)   What is the best way to animate the camera path in this case? Is there any Python scripts available and can be applied to case like this? Thank you all in advance for your replies.
105340
Camera: Canon 700D Lens: EF-S 55-250mm STM  So far I have been shooting still subjects. But recently I wanted to photograph moving people (skaters).  I changed the AF mode to AI-Servo (as skaters are obviously moving all the time) and started taking photos.  To my surprise, the green focus confirmation dot that normally appears at the bottom right of the viewfinder did not fire up at all! I read the camera manual and this is a known feature. The focus confirmation light indeed does not work in AI-Servo mode.  I am a bit puzzled now. How am I supposed to know if my shot is in focus? Am I supposed to "spray and pray" that I get good shots?  Or there is some other camera setting that I am not aware of?  Update: By "focus confirmation dot"  I am not talking about the red focus points. I am talking about the green confirmation dot that appears at the bottom right of the viewfinder that says to me "focus has been achieved".
76853
What are good practices for picking good keyframes when motion tracking? How are these frames used?   What is an "ideal" keyframe?
34060
I'm trying to fake a DOF effect for Sprites by using 2 cameras, one for the sharp objects, one for the blurred ones. I have set up the layers like Blur and Sharp accordingly.   So I have these 2 cameras, and I use Unity's Blur (optimized) script to blur things, and I have this script on only one camera, the one that is responsible for the blurred render.   I have the cameras like:  Cam 1:   Clear flags: Don't clear (this is the main, sharp cam) Culling mask: sharp layer has no blur effect (or any other post proc effect).   Cam 2:   Clear flags: don't clear (this is the blur cam) culling mask: blur Has Blur (optimized).    Now, if this blur cam is on the back, meaning its depth is LESS than the main cam's depth, I have a sharp player ground and a blurry background. However, I need a blurry foreground too that should be on top of the player ground.  The issue starts when I set the blur camera's depth higher than the main cam's. In this case, everything gets blurred, no matter that the main cam has no blur effect on it.   Question is, how to set this up so only the desired layers get the blur?
16308
Some shots I see online I don't understand how the tracking is done.      The car is coming at the camera while the motion blur is also towards the camera, so if you move your camera in the direction of the motion you will also blur the car. I guess these photos are a complete photoshop job?
15268
I have a model which you can see here (camera perspective).    In the second image, you can see how the render turned out.    I'm at my wit's end trying to figure our why it's not showing up in the render. If anyone needs more information, just ask and I'll get it to you. I've already checked the normals and they're not the cause.
105596
Dumb question - tracking footage, having border smear problems... So, just tracking some of my own footage for the first time and as I'm approaching my first test renders, I've encountered some weirdness with the boarders of the image - smearing in previews, transparency in render. Obviously, this is not my intended result!  The footage is from an iPhone 4, resolution 1280x738 w/display resolution of 1280x720.  I've a horrible feeling I've set my proxies up wrongly - and that I should immediately know what the problem is here... but I cannot remember the solution! Can anybody jog my memory?   Maaaan, I'm feeling stupid...  --Rev
114385
Given that av sync is on and the correct fps is set, why would the audio track and the video track not be of the same length. When the video file is played in a media player, no such problems occur, but when placed into blender's video editor, the total length of the video is longer than that of the audio. this varies from a short 8 second video with a 1 frame difference to a 2 hour long video with several thousand frames of difference. Also the audio does lag behind the video accordingly, but it takes a minute or so to really notice it desyncronising.
52862
Is it possible to track an handheld shot (there is already an answer on here about tripod shots: ) that doesn't have any visible points in common between the first and the last frame? As an example, imagine a shot of someone driving in a car for thirty minutes. Obviously everything from the first couple of seconds won't be there anymore at minute 15.
25407
I am trying to render an edited clip at 23.98 fps for use with motion tracking in a different project that shares the same frame rate. However, when I go to the tracker when the rendered clip is loaded, some of the frames show up twice in a row, thus throwing off the whole track. Any idea why this is happening?