당신은 주제를 찾고 있습니까 “davinci resolve optical flow – Slow Motion in DaVinci Resolve With Optical Flow | Push That Button“? 다음 카테고리의 웹사이트 https://chewathai27.com/you 에서 귀하의 모든 질문에 답변해 드립니다: https://chewathai27.com/you/blog. 바로 아래에서 답을 찾을 수 있습니다. 작성자 Envato Tuts+ 이(가) 작성한 기사에는 조회수 10,784회 및 좋아요 296개 개의 좋아요가 있습니다.
Table of Contents
davinci resolve optical flow 주제에 대한 동영상 보기
여기에서 이 주제에 대한 비디오를 시청하십시오. 주의 깊게 살펴보고 읽고 있는 내용에 대한 피드백을 제공하세요!
d여기에서 Slow Motion in DaVinci Resolve With Optical Flow | Push That Button – davinci resolve optical flow 주제에 대한 세부정보를 참조하세요
Learn how to create super slow motion video in DaVinci Resolve. We take a look at the Optical Flow and Speed Warp tools and show you how to get super slow motion results! ► Download unlimited DaVinci Resolve templates with Envato Elements: https://elements.envato.com/video-templates/compatible-with-davinci-resolve?utm_campaign=yt_tutsplus_6jRH0oCa7ps\u0026utm_medium=referral\u0026utm_source=youtube.com\u0026utm_content=description
Ever wanted to get super slow motion video in Davinci Resolve but you didn’t shoot in a high frame rate on set? Well now is your chance to get buttery smooth slow motion, way after you’ve shot your footage! Check out the latest installment in our Push That Button series.
You can download all the resources used in this video here: https://elements.envato.com/collections/Y8J26KZUTB?utm_campaign=yt_tutsplus_6jRH0oCa7ps\u0026utm_medium=referral\u0026utm_source=youtube.com\u0026utm_content=description
Here’s what you’ll learn:
00:00 Introduction
01:51 TL:DR
02:47 How to use Optical Flow and Speed Warp
12:49 Slow motion with mixed results
14:33 When Optical Flow works perfectly!
18:20 Check out these wacky results
20:11 Comparing the footage
21:18 Outro
► Download Unlimited Stock Photos, Fonts \u0026 Templates with Envato Elements: https://elements.envato.com/?utm_campaign=yt_tutsplus_6jRH0oCa7ps\u0026utm_medium=referral\u0026utm_source=youtube.com\u0026utm_content=description
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Envato Tuts+
Discover free how-to tutorials and online courses. Design a logo, create a website, build an app, or learn a new skill: https://tutsplus.com/?utm_campaign=yt_tutsplus_6jRH0oCa7ps\u0026utm_medium=referral\u0026utm_source=youtube.com\u0026utm_content=description
Envato Elements
All the creative assets you need under one subscription. Customize your project by adding unique photos, fonts, graphics, and themes.
► Download Unlimited Stock Photos, Fonts \u0026 Templates with Envato Elements: https://elements.envato.com/?utm_campaign=yt_tutsplus_6jRH0oCa7ps\u0026utm_medium=referral\u0026utm_source=youtube.com\u0026utm_content=description
► Subscribe to Envato Tuts+ on YouTube: https://www.youtube.com/tutsplus
► Follow Envato Tuts+ on Twitter: https://twitter.com/tutsplus
► Follow Envato Tuts+ on Facebook: https://www.facebook.com/tutsplus
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – optical flow davinci
davinci resolve optical flow 주제에 대한 자세한 내용은 여기를 참조하세요.
Where is the optical flow option in resolve? – Blackmagic Forum
Actually, setting to Optical Flow in your project settings means all clips have optical flow on as default. If you have a very powerful …
Source: forum.blackmagicdesign.com
Date Published: 9/24/2022
View: 7762
Mixing Frame Rates in DaVinci Resolve – Part 3: Editing and …
Optical flow can be used to smooth out the issues when converting between frame rates or changing speed. It can also make it possible to slow …
Source: blog.frame.io
Date Published: 5/29/2021
View: 9592
optical flow not working : r/davinciresolve – Reddit
im using a clip and i put it to slow motion but since its choppy i use optical flow but this time it doesnt work and its still choppy any …
Source: www.reddit.com
Date Published: 1/21/2021
View: 8464
Smooth Slow Motion in DaVinci Resolve – Even with 24 FPS …
In Retime Process dropdown, choose Optical Flow, and for Motion Estimation choose Speed Warp. Only these settings will make use of the DaVinci …
Source: elements.tv
Date Published: 4/21/2022
View: 938
Learn to Create Stunning Slow Motion in DaVinci Resolve 17
Optical Flow is a step up on frame blend, very intensive on your computer but will in most cases deliver superior results. Speed Warp takes …
Source: motionarray.com
Date Published: 5/28/2022
View: 844
Davinci Resolve Slow Motion Improvements with Optical Flow …
Davinci Resolve Slow Motion Improvements with Optical Flow Speed Warp. Slow motion in Davinci Resolve is improved. Davinci Resolve Optical Flow Speed Warp …
Source: www.pinterest.com
Date Published: 10/4/2022
View: 7092
주제와 관련된 이미지 davinci resolve optical flow
주제와 관련된 더 많은 사진을 참조하십시오 Slow Motion in DaVinci Resolve With Optical Flow | Push That Button. 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다.
주제에 대한 기사 평가 davinci resolve optical flow
- Author: Envato Tuts+
- Views: 조회수 10,784회
- Likes: 좋아요 296개
- Date Published: 2022. 2. 9.
- Video Url link: https://www.youtube.com/watch?v=6jRH0oCa7ps
What does optical flow do?
Optical Flow is a great tool that Adobe has implemented into their software. It allows you to take footage shot at a low frame-rate, and slow it down like it was shot at a high frame-rate. This feature has been in Premiere Pro for sometime now, but has only recently started to work really well.
What is optical flow slow motion?
The Optical Flow Slow Motion effect delivers the most effective, smooth slow motion possible with VEGAS Pro. Optical Flow Slow Motion doesn’t simply repeat frames or resample video, it analyzes the motion in the video and creates brand new intermediate frames.
What is the difference between frame sampling frame blending and optical flow?
The different types of frame blending are: Frame Sampling: best for smooth movements, no image distortion. Optical Flow: smoother results but can cause image distortion. Frame Blending: a mix of the two, some image distortion but smoother results.
Should I use optical flow?
Optical Flow interpolation is ideal for modifying the speed of clips containing objects with no motion blur that are moving in front of a mostly static background that contrasts highly with the object in motion.
What is optical flow and why does it matter?
Optical flow is a per pixel prediction and the main idea is that it assumes a brightness constancy, meaning it tries to estimate how the pixels brightness moves across the screen over time.
What is Nvidia optical flow?
Optical Flow SDK exposes the latest hardware capability of Turing and Ampere GPUs dedicated to computing the relative motion of pixels between images.
How do you slow mo a video without losing quality?
Trakax. Trakax is one of the best apps to slow down video that perfectly integrates with Android. You can use Trakax to slow down the individual videos on each channel. Trakax provides comprehensive and free editing functions for those who like to spend more time editing videos.
What is interpolation in video?
Motion interpolation or motion-compensated frame interpolation (MCFI) is a form of video processing in which intermediate animation frames are generated between existing ones by means of interpolation, in an attempt to make animation more fluid, to compensate for display motion blur, and for fake slow motion effects.
Should I change project frame rate DaVinci Resolve?
In DaVinci Resolve, it’s important to set your project frame rate correctly; it cannot be changed after importing any media. If you have DaVinci 16, you can start a timeline with a different frame rate later, but it’s better to get the first step right and save yourself time later.
What is an optical flow sensor?
An optical flow sensor is a vision sensor capable of measuring optical flow or visual motion and outputting a measurement based on optical flow. Various configurations of optical flow sensors exist. One configuration is an image sensor chip connected to a processor programmed to run an optical flow algorithm.
How do you do slow motion on Davinci Resolve 16?
Speed: Hover your mouse over the speed text box and click-drag to the left to slow down the shot for a slow-motion effect.
How do you render a clip in resolve?
Click and drag across your timeline to select all of your clips. Right-click on your highlighted clips and select Render Cache Fusion Output > On. In the top toolbar select Playback > Render Cache > User. Wait until the red bar above your timeline turns blue, signaling it is optimized for playback.
How to Use Optical Flow in Adobe Premiere Pro CC (2019)
Optical Flow is a great tool that Adobe has implemented into their software. It allows you to take footage shot at a low frame-rate, and slow it down like it was shot at a high frame-rate. This feature has been in Premiere Pro for sometime now, but has only recently started to work really well. It’s a quick and simple thing to test out, so let’s get started. Today I am going to show you how to use Optical Flow in Adobe Premiere Pro.
How to Use Optical Flow in Adobe Premiere Pro CC
Create a new sequence, or navigate to an existing sequence. Add or find the footage you want to slow down.
Method 1: Speed/Duration
Right click on your footage and go down to Speed/Duration. Inside the menu, slow your footage down to something like 50%. You can maybe stretch it to 25%, but anything past this will most likely look bad. At the bottom of the menu where it says “Time Interpolation:”. Change this to “Optical Flow”. Your clip may need to be rendered out to view without being choppy. To do this hit the “enter” key on your keyboard, or go up to Clip->Render In to Out.
Method 2: Time Remapping
Right click on the footage and go to Show Clip Keyframes->Time Remapping->Speed. Extend your clip down on the timeline to see the speed line. Create keyframes and and adjust the speed within the timeline. (More in-depth tutorial on that here) Right click on your footage, go down to Time Interpolation->Optical Flow. Your clip may need to be rendered out to view without being choppy. To do this hit the “enter” key on your keyboard, or go up to Clip->Render In to Out.
There you have it, a quick and easy way to add some optical flow to your clip. This effect works on about 80% of clips. If you have a really complex background, then the optical flow can start to add a bubbly effect. In this case, try slowing it down less to reduce the effect. The opposite is also true. If you have a really simple background, you can speed it up a lot. For example, on a green screen, you can bring a clip down to 5% or even 1% and have it look perfect!
If you have any questions, feel free to comment below, or on the video itself!
Other Premiere Pro Tutorials:
3 Ways to Make Slow Motion Video
Slow motion is a classic effect in film, going back to the earliest days of movies. You’ve seen it used for heightened drama or romance, or to punch up action scenes and make them more intense. For example, you’ve seen the bad guy start to fall off a building in slow motion, and then the action ramps up to full speed for an exciting climax!
Want to make some slow motion of your own? From simple slow motion to changing speed right within a clip, VEGAS Pro has you covered.
Useful Tips: Consider These Before Changing the Speed of Your Video
In this tutorial, we’ll take you through three different methods of achieving slow motion in VEGAS Pro:
Method 1: CTRL-Trim
Method 2: Velocity Envelope
Method 3: Optical Flow Slow Motion Effect
When we’re done, you’ll have a good understanding of how slow motion works in VEGAS Pro. Read on to find out more!
Where is the optical flow option in resolve?
Thu Sep 19, 2013 10:47 am
Hi,
how successfully an optical flow operation will come out depends on what is going on in the footage. Areas with fine lines in any kind of grid-like formation won’t work at all. Sudden(/dramatic) changes in contrast and anything around a light source will also give poor results. Haven’t checked in 10 yet but in Smoke I am able to mask out any areas that don’t work and do a different kind of speed change on just those areas. If this isn’t a current feature in Resolve then it would be mighty handy.
MBP2021 M1 Max 64GB, macOS 12.4, Resolve Studio 17.4.6/18.0B build 28
Output: UltraStudio 4K Mini, Desktop Video 12.3
Mixing Frame Rates in DaVinci Resolve – Part 3: Editing and Interpolation
Welcome to part 3 of our series on editing mixed frame rate in DaVinci Resolve.
A useful method for editing mixed frame rate material is to leave the source files at their native frame rates before you start cutting. In my experience, this type of workflow is more common in the commercial post world, as leaving frame rates at their native frame rate preserves timecode consistency across the project and file(s). And in the commercial world, since many shots and sequences are sent out to other facilities or software, matching timecode is essential.
But, editing clips with different native frame rates is more tedious than simply conforming them all together with clip attributes. By default, if you edit non-matching frame rate files to a timeline, your files will playback choppy. That said, most editors don’t worry about this and just edit mixed frame rates together without realizing it. But, this method can turn into a big headache down the road.
Logging Metadata
As we’ve mentioned in previous sections, the first step to sorting out all this mixed frame rate business is to add and organize metadata. This is extra important when it comes time for editing, and can be used to help smooth out playback issues.
Percentage Metadata for Smooth Playback
Logging non-matching frame rate files is less involved than changing the simply native frame rates, but can still deliver similar results.
For this method, you’ll need to change the speed of the clips once they’re edited to your timeline, which will ensure they play back smooth. Keep in mind, it can be helpful to add those percentages to the camera notes field for quick reference, and to add the recorded frame rate (as we did earlier when changing the native frame rate in the Camera FPS field).
For example, imagine we have clips that are 59.94p natively. If we edit this clip in a 23.976fps timeline, Resolve will throw out frames at an uneven cadence to achieve real-time playback by default. To avoid this issue, we can just change the speed to 40% — 23.976 / 59.94 = .4 or 40%. Changing the speed to 40% will make the clip play back without dropping any frames.
Go through each non-matching-FPS clip in your camera bins. Divide that FPS number by your project frame rate. Now add this percentage number to the camera notes field. For example, “40% native” for 59.94 clips in a 23.976 timeline. This is the number that you’ll use for any speed changes when editing your clips to the timeline.
This may seem tedious or unnecessary work at first, but it can really benefit the whole post process if it’s done right the first time. Having this information close at hand can really save editors a lot of time.
Camera FPS metadata
If a clip is high speed, you’ll need to read the previous section on finding and adding the recorded frame rates to the Camera FPS metadata field for your clips. This will allow you to retime clips more easily.
Re-Timing with Non-Matching Frame Rates
In contrast to matching frame rates, where you should use multiples of 100, editing clips with mixed frame rates requires you use multiples of the divided percentage number for smooth playback. If you are re-timing footage, obviously you don’t want the choppy playback, so you’ll need to use multiples of that new percentage for any speed changes.
For the 59.94p to 23.976 example, doubling that 40% slow down to 80% will, of course, speed the footage up. Now the footage will play back closer to real-time without any uneven cadences. Frames will still be thrown out, but they will be thrown out evenly, so there won’t be any jerky or skipped motion using this method. By using multiples of 40% like 80%, 120%, and so on, we can achieve smooth playback across a range of re-timed speeds.
It’s important to remember that clips with frame rates that aren’t perfectly divisible won’t playback smoothly in real-time without frame interpolation. It’s also notable that synced audio will have issues with re-timing and frame interpolation if not matched to the timeline.
Frame Interpolation
The re-timing process defines how Resolve handles any non-matching frame rate or speed change. In those settings, you’ll find options for frame blending and optical flow, which are methods of rebuilding missing frames through interpolation.
The settings for this can be found in the project settings and in the master settings. Do remember, the project settings can be overridden for any clip in your timeline with other settings.
By default, Nearest is the setting used for clips, which adds or throws out frames any time you change the clip speed or have non-matching frame rates. It’s generally a good idea to keep this setting at Nearest during editing, as the other options are more processor intensive.
However, other settings, like Optical Flow, smooth out uneven motion, speed changes, and non-matching frame rates fairly well. This setting is usually applied once an edit is closer to being finished, or to test out if optical flow work well on a particular clip. Editing with it on constantly will be a drain on your system resources, and might interrupt smooth playback.
But each of these settings behaves differently, and can be useful in certain situations, so let’s take a look at them individually
Nearest
Frames are either dropped or duplicated
This is the default setting when mixing frame rates
Least processor intensive
Nearest is the default setting for retiming, and is the least processor-intensive setting when re-timing clips. You will see stuttering with fast-moving footage or using uneven speed changes, but that’s the price of faster performance.
Frame Blend
Duplicate frames are blended together
Not commonly used
Medium processing requirements
Frame Blend is generally not used that much because it creates blended frames, which are very noticeable, even to untrained viewers. If you’re going for that specific effect, Frame Blend might work. But for most situations, frame blending is probably not what you want.
Optical Flow
New frames are generated with motion estimation
Commonly applied to smooth out motion
Heavy processing burden
Optical flow can be used to smooth out the issues when converting between frame rates or changing speed. It can also make it possible to slow down footage beyond what the originally-captured frame rate allows. Optical flow actually interpolates entirely new frames, or new pixels on existing frame to fill in movement.
Resolve has various levels of quality for the optical flow process. With lower quality settings, your image might tear or start to ghost, which usually makes it unusable. But each increasing quality setting adds significant benefit (and processing load) to the end result.
Here is an example of optical flow warping.
The first clip has not been re-timed, and does not have Optical Flow interpolation. The second clip has Optical Flow applied, and has been re-timed to 130%. Notice how the drummer’s right hand warps and tears from frame to frame. In the before example, the quality has been set to the standard, and only natural motion blur is present.
If you want to improve the result, you can change the various optical flow settings in Resolve 16:
Footage with a higher shutter speed (less motion blur) usually results in better frame interpolation. However, most of the time you have the footage that you have, which was likely shot with more natural motion blue. Few productions shoot regular speed footage with higher shutter speeds intentionally, but if unless you haven’t shot yet, and plan on severely re-timing footage and using Optical Flow, try a higher shutter speed.
Enhanced Optical Flow
In Resolve 15 and higher, there are more options for Optical Flow.
Click the gear icon and Master Settings from the options, and look at top and bottom options for Frame Interpolation. You’ll see Motion Estimation Mode and Motion Range. Motion Estimation Mode has four options, listed in ascending quality, with enhanced better producing the best result. Motion Range is a setting that dictates how much motion is happening within an image, which helps the interpolation produce more believable motion blur.
Of course, the higher quality the setting, the longer the processing time. So, if you use Optical Flow, it’s a good idea to use the render cache for those clips (so you don’t have to re-render every time), or to only enable those settings once you’re finishing or ready to export.
Speed Warp
In Resolve 16, Speed Warp is a new advanced option for frame interpolation with Optical Flow. This new option is processed by Resolve’s new DaVinci Neural Engine, which uses machine learning and AI to process new video frames. It sounds fancy, and it’s results look pretty great.
Speed Warp looks much better than the Enhanced Optical Flow, but is a lot more processor-intensive.
Here is an example of the same scene from above using Speed Warp instead of the standard settings. You’ll notice there is much less warping and way better motion blur interpretation.
This new setting is set to be a game-changer for slowing footage down or complicated retime curves.
Speed Warp can really sell the illusion of ultra-slowed down footage, way beyond what your footage was probably intended for, or could believably achieve otherwise. Also if you have a complicated creative speed change using lots of curves and uneven multiples, Speed Warp can help hide any frame skipping or duplicating that might be visible.
Since Speed Warp is so processor-intensive, it might be a good idea to bake the effect in. It seems odd to render out a clip re-time as a new clip, but if you plan on using this effect a lot in a project, it can save you a lot of time.
Of particular note for this guide, Speed Warp might help with mixing frame rates together as well. While the older Optical Flow can help sometimes, it wasn’t dependable or consistent enough for a lot of professional work. But Speed Warp looks like it will greatly improve the ability to slow footage down and to mix frame rates together, so we’ll see how much use it gets for those types of projects.
Ultimately, though, it’s still important to understand how frame rates work in Resolve so that you can control the final product of your video. Having new tools like Speed Warp are helpful, but they’re of little use if not implemented appropriately. For example, in a professional setting, if you ignore our previous steps of organizing and matching mixed frame rates, and are just counting on Speed Warp to every other clip, this will probably slow down your project to an unacceptable level, especially on 4K+ footage. Just like every tool, we need to understand when to use it and when to use alternatives.
In the next edition of this series, we’ll discuss how to use all of these new processes and settings in a proxy workflow. Check out Part 4.
Smooth Slow Motion in DaVinci Resolve – Even with 24 FPS Footage
No other effect in filmmaking has proven to be as simple and as fruitful as slow motion. It allows the viewer more time to observe and digest the finer details of a movie whilst heightening the dramatic impact of a scene.
Slow motion requires planning, as the footage needs to be recorded at framerates higher than those of the final movie. In order to achieve a 50% speed in a 24 FPS project, the footage would need to be recorded in at least 48 FPS. However, sometimes the need for slow motion may only become apparent during post-production, and slowing 24 FPS video down to 50% will make it extremely choppy and have a negative effect on the overall viewing experience. The solution here is frame interpolation using DaVinci’s Neural Engine.
The following videos have been shot in 25 FPS and slowed down by 50%. The right video has frame interpolation applied to it and results in a far smoother looking playback.
By loading this video, you accept Vimeo’s privacy policy.
Learn more Load Video Always load Vimeo videos
Frame Interpolation
Just about every modern NLE handles mixed framerates quietly, often without the user even knowing it. For example, any time you put a clip into a sequence with a higher framerate, the NLE will automatically stretch the clip to the framerate of the sequence and add the missing frames. These added frames are usually just copies of the nearest frames as this process requires the least amount of processing power. But DaVinci Resolve also provides the frame interpolation features which generates missing frames by merging adjacent frames or by using DaVinci Neural Engine AI to analyse surrounding frames and predict motion.
Here are the straightforward instructions on achieving smooth slow motion with standard framerate footage:
First you need to change clip speed. Right-click the clip in the timeline and open Retime Controls or simply mark the clip and use the shortcut Cmd+R on Mac or Ctrl+R on Windows. Open the Speed dropdown menu on the clip and lower the clip speed – in the case of the test clip, 50% was selected. Alternatively, Speed Points can be added to dynamically change the clip speed. Select the clip and navigate to the Retime and Scaling menu in the Inspector panel. In Retime Process dropdown, choose Optical Flow, and for Motion Estimation choose Speed Warp. Only these settings will make use of the DaVinci Neural Engine and tend to produce the best results, however, at the cost of being very processing-intensive. All details about the settings and the alternatives can be found below. Playback of the clip is not possible without rendering it first. Right-click the clip and choose Render in Place. Select the desired format and codec, turn Include Video Effects on and render the clip.
Expect the rendering process to take a while due to the processing-intensive retime settings. After the render has finished, a new clip will be added to the Media Pool and the clip in the timeline will be replaced by the new one.
Retime Process
Resolve gives users control over how the frame interpolation should be done. Different interpolation settings produce different quality results. The Retime Process comes with three presets, as described in the DaVinci Resolve 17 Manual:
Nearest: The most processor efficient and least sophisticated method of processing; frames are either dropped for fast motion, or duplicated for slow motion.
Frame Blend: Also processor efficient, but can produce smoother results; adjacent duplicated frames are dissolved together to smooth out slow or fast motion effects. This option can provide better results when Optical Flow displays unwanted artefacts.
Optical Flow: The most processor intensive but highest quality method of speed effect processing. Using motion estimation, new frames are generated from the original source frames to create slow or fast motion effects. The result can be exceptionally smooth when motion in a clip is linear. However, two moving elements crossing in different directions or unpredictable camera movement can cause unwanted artefacts.
Motion Estimation mode
As described in the DaVinci Resolve 17 Manual: When using Optical Flow to process speed change effects or clips with a different frame rate than that of the Timeline, the Motion Estimation pop-up lets you choose the best-looking rendering option for a particular clip. Each method has different artefacts, and the highest quality option isn’t always the best choice for a particular clip. There are several options.
“Standard Faster” and “Standard Better” are the same options that have been available in previous versions of DaVinci Resolve. They’re more processor-efficient and yield good quality that are suitable for most situations.
“Enhanced Faster” and “Enhanced Better” should yield superior results in nearly every case where the standard options exhibit artifacts, at the expense of being more computationally intensive, and thus slower on most systems.
“Speed Warp” is available for even higher-quality slow motion effects using the DaVinci Neural Engine. Your results with this setting will vary according to the content of the clip, but in ideal circumstances this will yield higher visual quality with fewer artifacts than even the Enhanced Better setting. This setting is only available on a clip-by-clip basis; it’s not available in the Project Settings.
Struggling with the performance in DaVinci Resolve? Read this blog about 5 ways to achieve better playback performance.
Find out what’s new in DaVinci Resolve 18?
Learn to Create Stunning Slow Motion in DaVinci Resolve 17
Slow motion is that awesome effect you see in so many movies and videos where time seems to stand still allowing you to see every detail of the action that is happening. We’ll show you how to create slow motion in DaVinci Resolve 17.
The super-smooth slow motion that you see in movies is filmed at high frame rates from 60 to 240 frames per second (fps) and above, then played at a lower frame rate like 24 frames per second to slow it down in real-time. One second of 240 fps footage takes 10 seconds to play at 24 frames per second giving you very smooth slow motion. Changing the speed at which the footage is played overtime is called speed ramping.
Part 1: Main Methods to Create Slow Motion in DaVinci Resolve 17
It is important to understand that to be able to slow down any footage you need to play it back at a lower frame rate than it was filmed. If it was not filmed at a higher frame rate you can’t slow it down without needing to create new frames to fill in the gaps. While it is possible to do this, as we will see later, the best results are achieved using high frame rate footage and then slowing it down.
Let’s begin by creating a slow motion effect. In order for this to work well, the footage needs to be filmed in a frame rate of at least 2x the frame rate of your timeline e.g. with a 24 fps timeline the footage would need to have been filmed in at least 48 fps. Common frame rates for slow motion are 60, 120, and 240 fps. The higher the frame rate the more you can slow it down.
Changing Clip Speed
The quickest way to slow down your footage is simply to change the clip speed. There are a few main ways to slow down footage in DaVinci Resolve 17.
Add some of your own high frame rate footage to the timeline in the Edit Page, or use some stock footage from Motion Array. Select the clip and check the frame rate in the metadata tab then check your timeline frame rate in the settings tab. Use these two figures to work out how much you will be able to slow it down without losing frames then use one of the methods below to slow it down.
Press R to bring up the Change Speed dialogue. You can also access Change Clip Speed by right-clicking on the clip, or from the clip menu at the top of the interface. Change the speed to e.g. 50% to slow it down to half speed. Check the Ripple Timeline box and click Change. The clip now plays in 50% slow motion and has doubled in length. A speedometer icon appears on the clip, letting you know you have changed the speed of the clip. If you don’t check the ripple sequence box, the clip is played in slow motion for the duration of the original clip. Press Ctrl+R or Cmd+R to bring up the re-time controls. You will see a dropdown menu with a %. Change this % to slow down the clip or select the edge of the clip and wait until you see double arrows appear. Now drag the edge of the clip to speed it out to slow it down. We will go into more detail about this method in Part 2. In the media pool, you can right-click the clip and select Clip Attributes, then change the speed to match the timeline frame rate. This changes the playback frame rate of the clip so when you drop it onto the timeline the clip will play in slow motion to match the timeline frame rate. This is handy when you have a lot of b-roll that you want to play in slow motion without the need to retime it. It really speeds up editing.
Frame Interpolation Methods
When you don’t have enough frames to slow down your clip, DaVinci Resolve needs to use the frames it has to make up the missing frames, called frame interpolation. As an example, if you were to try and slow down a one-second-long 24 fps clip in a 24 fps timeline by 50%, DaVinci Resolve needs to create 24 new frames to fill in the gaps.
Likewise, if you drop a 24 fps clip in a 30 fps timeline Resolve needs to create 6 more frames for every second of the clip. The frame interpolation method used has a big impact on the quality of the results. There are a few ways Resolve can do this.
Nearest is the least computer-intensive will generally play in real-time. This method displays the nearest frame to what needs to be shown. In the 24 fps example above, it would effectively double each frame by showing it twice. The result would look very choppy. Frame Blend does just that. It blends the frames on either side to create new frames in between. It is a bit more intensive on your computer but will deliver a better result and works reasonably well for timelapse footage. Optical Flow is a step up on frame blend, very intensive on your computer but will in most cases deliver superior results. Speed Warp takes optical flow even further by using the DaVinci Resolve neural engine and machine learning to create the new frames. It delivers great results but is only available in the studio (paid) version of DaVinci Resolve and is very resource-intensive.
The frame interpolation method DaVinci uses is set in the project settings under Master Settings > Frame Interpolation or at the clip level in the Inspector under Retiming and Scaling.
Along with the Frame Interpolation options, you can set the Motion Estimation mode and Motion range for performance or quality (Faster vs Enhanced and Large to Small).
Audio and Slow Motion
Changing the speed a clip plays back in the timeline also affects the audio that is linked to that clip. This does not apply to changes made under clip attributes in the media pool or unlinked audio. To change separately recorded audio along with the clip you need to link the clip and the audio.
Generally, audio for slow-motion clips should be dealt with separately (by unlinking it from the clip) unless you want the sound to change along with the clip. This may work in some instances where it is intended e.g. a slow-motion reaction shot. To achieve that slow-motion sound, untick the Pitch Correction box in the change clip speed dialog.
Part 2: Learn Speed Ramping in DaVinci Resolve 17
Speed ramping refers to changing the clip speed over time by adding speed points to the clip. The speed points allow you to break the clip into different sections that play at different speeds for great effect.
Retime Controls
To access the re-time controls press Ctrl+R or Cmd+R or right-click on the clip to bring up the Retime Controls. You can also access Retime Controls from the clip menu. To add a default speed ramp click on the Speed drop-down and choose one of the ramp options. The clip will be broken into 5 speed points up from 0% or down to 0%. You can change the speed of each section as needed. To add speed points manually move the playhead to where you want to add it, select the speed drop-down and click Add Speed Point. Add as many as you need and change each section to the speed you want it to play. The yellow arrows that appear on the clip indicate sections where the clip has been slowed down.
Note: To hide the Retime Controls once you have made your changes, click the X beside Speed Change, or Cmd+R or Ctrl+R.
You also have a variety of speed change options, as well as freeze frames and reverse speed. Freeze frames are red bars, rewind is reverse arrows, and if you speed up a clip above 100% you get closely spaced blue arrows.
Retime Curves
When adding speed points the changes between these points are abrupt. The retime curve in DaVinci Resolve 17 is used to smooth out the transition between speed points.
Right-click on the clip and select Retime Curves. Then select Retime Speed from the small dropdown on the top left. It defaults to Retime Frame. You will see there are hard changes between the speed points. To fix this, click on a speed point and select the bezier handles icon. You can now drag on the handles to smooth the speed change. You can also click on the keyframe icon to add a new speed point then simply drag it up or down to change the speed of that section to change the speed.
Part 3: Troubleshooting Slow Motion Edits
There are a few main issues that you will come across when working with slow motion in DaVinci Resolve. The majority are caused by not understanding how DaVinci Resolve works with slow motion, which hopefully after reading the article you understand now. Below are some troubleshooting tips.
Choppy or Odd-looking Slow Motion
The simple answer here is that in most cases the footage has been slowed down beyond the available frames and DaVinci Resolve is making up new frames to compensate. There is no warning for this, you need to know the frame rates of your footage and how much you can push it. So check the frame rate and adjust your clip speed accordingly.
Alternatively, if you don’t have enough frames and still need to slow it down, play with the frame interpolation settings for the clip until you find a usable result. We advise caution here as these methods are resource-intensive and can bring even the most capable systems to a halt. You will most likely need time to let it render for smooth playback. This leads us to the next problem.
Playback Issues or Computer Locks Up
The frame interpolation method set in the project settings or for a clip can cause even very capable systems to come to a grinding halt if you are trying to slow down footage excessively and have options like optical flow or speed warp selected. Give it time to render or change it to the nearest or frame blend.
Sometimes generating optimized media, using timeline proxy mode, or rendering the clips in place can help you achieve smooth playback and alleviate the pressure on your system.
Understanding the importance of frame rates and how DaVinci Resolve 17 works with high frame rate footage or deals with low frame rates when creating slow motion is essential. Once you understand these principles, creating amazing slow motion with DaVinci Resolve is very simple and effective.
키워드에 대한 정보 davinci resolve optical flow
다음은 Bing에서 davinci resolve optical flow 주제에 대한 검색 결과입니다. 필요한 경우 더 읽을 수 있습니다.
이 기사는 인터넷의 다양한 출처에서 편집되었습니다. 이 기사가 유용했기를 바랍니다. 이 기사가 유용하다고 생각되면 공유하십시오. 매우 감사합니다!
사람들이 주제에 대해 자주 검색하는 키워드 Slow Motion in DaVinci Resolve With Optical Flow | Push That Button
- optical flow davinci
- optical flow
- optical flow davinci resolve
- davinci resolve
- slow motion
- davinci resolve 17
- davinci resolve tutorial
- davinci
- davinci resolve optical flow
- davinci resolve slow motion
- davinci resolve effects
- speed warp
- resolve
- smooth slow motion
- davinci resolve slow motion tutorial
- video editing
- slow motion effect
- smooth slow motion davinci resolve
- davinci resolve effects tutorial
- slow motion davinci resolve
- envato tuts+
- envato elements
Slow #Motion #in #DaVinci #Resolve #With #Optical #Flow #| #Push #That #Button
YouTube에서 davinci resolve optical flow 주제의 다른 동영상 보기
주제에 대한 기사를 시청해 주셔서 감사합니다 Slow Motion in DaVinci Resolve With Optical Flow | Push That Button | davinci resolve optical flow, 이 기사가 유용하다고 생각되면 공유하십시오, 매우 감사합니다.
