Creating a clean fly through is an invaluable marketing tool for our customers as it allows them to effectively depict collected data. This post will provide you with the tools you need to quickly and efficiently generate a quality fly through. After your point cloud has been fully registered and colorized here are the steps you should take to create this fly through.
1. Make sure that you have downloaded the video app from the FARO 3D App store . There is a free version of the video app and a for pay version, the free video app is fully functioning and simply applies a FARO SCENE watermark to the fly through video.
If you are currently working in a workspace, “share your changes” to generate an .lsproj file. If you are already working out of the project file, then skip this step.
2. Now that we are working out of the project file, our first step is to generate a project point cloud. In order to do this click the button marked with a cloud and a green plus sign.
3. Check the boxes, eliminate duplicate points, homogenize point density, and apply color balance. The color balance tool is new to SCENE 5.2 and will make the scan’s colors truer. Depending on the size of your project and the power of your computer, this may take some time.
4. Once your project point cloud has been created, go to the scans column on the left. Right click “scans” and unload all scans and pictures. Since the project point cloud has been created it is not necessary to have all of the scans loaded, they will only slow down your system. Now, right click in point cloud viewer and select “visibility settings” – “scan points.” Be sure to set your scan point size to small, enable subsampling, and set super sampling to “2X2.” Click apply.
5. Now select “visibility settings” – “layer” in this menu, deselect everything except for “visible” – “point cloud.” Apply these settings.
Now that these settings have been applied, save your project.
When the SCENE video app is installed the ribbon will be present at the bottom left of the top toolbar. Our first step will be to click the walk through icon (looks like two feet). Practice maneuvering your way through your point cloud and decide the route you want to take in your fly through.
Fly Through Controls
Mouse: Ability to swivel your viewpoint
Q: Negatively rotate screen along selected axis
E: Positively rotate screen along selected axis
6. Once you have decided on your basic flight path select your first viewpoint, click ‘CTRL’ + ‘F2.’ This will generate a screen shot of that viewpoint and add it to your ‘viewpoints’ menu. It is important to make sure that the viewpoints you have selected flow smoothly between themselves or else the video will come out choppy (this will take some practice). To access any one of your viewpoints, right click the viewpoint you are interested in and click “activate”.
7. Once you have generated all of the viewpoints you think you will need, press video icon and select ‘new video from path’ and add all of the viewpoints you just created to the right column.
Select “preview path,” this will provide you with a basic version of your fly through without the fully rendered images. This preview is there to ensure that the viewpoints flow together smoothly as well as to make sure all of the important details are present in the video. Look for any areas where the video seems to “whip” back and forth. These will be distortions that could ruin a good video. Go through and delete any viewpoints that generate such distortions.
Once you are content with the flow of your camera path, it is time to generate the images from which you will be creating your video. Make sure you save! Now click the video icon, select ‘Create Video From Path,’ select the folder where you want to save your images, select the desired resolution of video and finally select length of video.
8. It is important to note that regardless of length of the video SCENE is going to incorporate all of your selected viewpoints. So if you have a lot of viewpoints and you make a 1-minute video you will not be able to see anything. For this video I chose 17 viewpoints, the video will be attached at the end of this tutorial. Deselect the ‘video’ box at the bottom. Click Start. Depending on settings this will take some time!
9. Watch the fly through viewer for the first couple images to make sure they look like you want them (color/resolution) and then leave it for the remainder of the time.
10. Once the images have been created, click the video app icon. Select the ‘create video from images’ tab and select the “.vapp” file from the folder where you saved your fly through images. Select if you want your video to be in a .mp4 or .wmv file format and where you want to save your video then click start.
The rendering time for this video should be significantly less than the time it took to generate the images for the video. Once the rendering is complete, your video is ready to be watched!
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