I do A LOT of photo matching, and some match moving of drone video. A few tips: 1.) Film width is actually the VRay film gate equivalent which is actually the width of the sensor of a full frame camera…so leave it at 36.0mm, there’s a reason why it’s defaulted to that. You could change film width if you’re trying to match the true sensor size and camera lens focal length of a specific camera sensor, but it will still result in the same field of view, which is one of the goals of camera matching. The other goals being having your correct x,y,z camera positions, settings, and lighting match. 2.) to get the most accurate scaling of an aerial map, measure the longest distance known across the map as you can, measuring it in Google Earth or equivalent. If you’re off by 1m over 2000m, it’s better than being off by 1m over 200m (IE every 200m you’d be off by 1m and then be off by 10m over 2000m…which for certain projects is not acceptable…her example is fine) 3.) if anyone was wondering why when she input the fstop/shutter/iso numbers why it was still so overexposed, it’s because based on the video, she had an ND filter on it, an ND32 aka 5 stops lower light hitting the real camera sensor than what was input into Max/corona camera settings…it doesn’t know an ND was used. So she could have adjusted/closed her 3d camera aperture from 1.7 to 9.14 to achieve the exposure of the photo…my math could be a little off. 4.) for an example like this, a flat plane is fine. For places with elevation changes or you’re trying to connect 3d roads to real roads in the photo, you need accurate 3d terrain or it won’t match without warping in post. even a foot or 2 change in elevation in photo will result in not matching. So it is useful to have 3d terrain, and accurate terrain at that.
Really cool!!! Can you show how to do an aerial video with 3D on video, how to do the camera tracking and transfer for 3dsmax and create the 3D video with the aerial video
Thank you! It is very good and modern tutorial! Can you tell me? - Why didn't you use the "Perspective match" utilities ? This way we can to calibrate vertical and horizontal perspective lines for our 3d model? ....
I'm guessing because all the camera information and location was precise enough - also, in my experience, that Perspective Match in 3DS Max really sucks.
@@Jez2008UK I know Perspective Match was broken for a while in one of the versions, but personally I've always had good experiences with that tool in 3ds Max.
Thanks for the video. Im using a script for After Effects.. but for some reasson the camera gets everyrhing distord. Even if i use the same 35 mm as the drone. Perhaps to do it this way is much easier.
Uhm... You are missing the atmospheric effects for a realistic blend and also the buildings stand out too sharp, compared with the much blurrier photo you used, even after all the blur you added... :) But, overall great tutorial.... Keep up the good work... :)
