Video-Editing-using-Blender/C2/Rendering-a-Video/English
Visual Cue | Narration |
Slide Number 1
Title Slide |
Welcome to the tutorial on Rendering a Video. |
Slide Number 2
Learning Objectives |
In this tutorial, we will learn about,
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Slide Number 3
Learning Objectives |
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Slide Number 4
System and Software Requirement |
To record this tutorial, I am using
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Slide Number 5
Pre-requisites |
To follow this tutorial,
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Slide Number 6
Code files |
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Open blender video editing interface. | I have opened the Blender video editing interface. |
Click on File, Open. | Click on File, Open.
I have saved the input project file in my Videos folder. |
Choose render.blend file from the Videos folder.
Click on Open. |
From the Videos folder choose render.blend file.
Click on Open to open the project. |
Cursor on the video strip. | The project consists of an edited video.
Let’s render it to create an output file. |
Hover mouse over Side bar. | Notice the Side bar or information panel on the right side of the Sequencer panel.
If you do not see it press the N key to display it. |
In the Strips tab, scroll down to the Source section. | In the Strips tab, scroll down to the Source section.
If needed, click on the arrow on the left to show the options and scroll down. |
Cursor next to resolution. | Notice the resolution or pixel size of the input video is shown here. |
On the Scene panel, click on the Output properties. | In the Scene panel on the top right, click on the Output Properties.
The name is seen as a tool tip. |
Click hold and drag on the side to make the panel larger for recording. | I will make the panel a little larger for clarity.
Click hold and drag on the side as seen here. Learner must familiarize themselves with icon function and tooltip. |
Place the cursor on the form to see a two direction arrow. | Notice that we can change the resolution while rendering.
Place the cursor on the form for resolution x to see a two direction arrow. |
Click, hold and move to change the value to 888. | Click, hold and move to change the value.
I will match the resolution of the output file to that of the input. |
Show entering value 888 in the form. | You may also enter a number using the keyboard. |
Change Resolution y to 656. | Let’s change the resolution in x and y dimension as seen here.
They are pixel height and width of the video. |
Hover mouse over fps. | Scroll down to notice the fps or frames per second as 2.
I will retain it. |
Scroll down to Output section. | Scroll down to the output section. |
Click twice on the arrow on the left of Output to unfurl it. | If needed click on the arrow on the left to see the options. |
Point to the folder. | Click on the folder icon on the right.
A dialogue box opens. |
Choose the home Videos folder. | Navigate to the Videos folder.
Let’s set the output file path to home Videos directory. |
Click on Accept. | Click on Accept to change the output directory. |
Click on the box right of the File format. | Click on the box right of the File format to set the output format. |
Choose Ffmpeg video. | I will choose the FFmpeg video option. |
Hover cursor over RGB. | Color is set to RGB.
If you choose BW, the output will be in black and white. |
Click on the arrow on the left side of Encoding. | Click on the arrow on the left side of Encoding. |
From Container choose MPEG-4. | From the Container, choose the desired output file format.
I will choose MPEG-4 to make a mp4 type video file. |
Hover mouse over the options in the pulldown. | The input file in the project was a webm file.
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Hover mouse over the Video codec options in the pulldown. | In the Video codec section, I will retain the default H 264,
Theora and webm formats are also available. |
For Output quality, choose Lossless. | For Output quality, I will choose Lossless from the default of medium quality. |
Hover mouse over encoding speed. | Retrain the encoding speed as good. |
Hover mouse over keyframe interval. | We can also set the keyframe interval here.
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In the Audio codec pull-down, choose AAC. | Next, let’s set the audio properties for the exported video.
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Hover mouse over sample rate, bitrate and volume. | I will retain the default values of sample rate, bitrate and volume. |
Click on render properties.
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Now, click on the Render Properties icon as seen here.
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Hover mouse over Eevee. | Notice the Render Engine used here is Eevee.
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Hover mouse over the options.
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Notice the several settings that are possible here, including indirect lighting. |
Click on Color management. | Let’s click on Color management. |
Hover mouse over Display device. | I will retain the default for display device. |
Click open View transform pull-down. | Click open the pull-down for View transform. |
Hover mouse over the options. | Many of you may use a regular video clip that you have recorded.
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Hover mouse over Filmic. | Click on Filmic and notice the color change in the preview panel. |
Hover mouse over standard. | I will retain the standard here. |
Pause the video, choose the options and notice the changes. | |
Hover mouse over gamma and exposure. | We can also change gamma and exposure. |
Left click, hold and drag to change value. | To change the values, left click, hold and drag.
We can also enter a value of choice in the box. |
Change to default, 0 and 1. | I will change them to the default value. |
Click on Render, Render Animation. | Now, let’s render to make the output file.
A new render window opens. |
Cursor on render progress. | On the top left side of the render window, notice the progress in frame numbers.
At the last frame, when rendering is completed the progress will stop. |
Show the rendering process. | As the render progresses, the video frames move to the end in the render window. |
Allow the process to be completed. | |
Cursor on the render screen. | My video is only 2 fps and the rendering is a fast process. |
Slide Number 7
Rendering time |
Rendering time depends on the fps of the video.
Generally videos are recorded with 25 to 50 fps or more. Then rendering will take much longer time. |
Click on the x sign to close the render window. | I will close the render window, as seen here. |
Click on the Output Properties and scroll up. | Click on the Output Properties.
Let’s scroll up the panel. |
Hover mouse over the three dots to show render presets tool tip. | On the top right, next to dimensions, notice the list icon.
It is for render presets. |
Click on render presets. | Click on it.
We can render videos to preset formats such as PAL or NTSC. |
Cursor on the man options in render presets. | We can also save the settings we will be using to a new file.
The dimensions of the render will be saved in this file. |
Type firstpreset in the new preset form.
Click on the plus sign. |
Click on the form for new preset and type, firstpreset.
Click on the plus sign next to it. |
Show the newly added Render preset. | A new preset gets added to the list.
Users may use this condition, later on, if needed. The dimensions parameter will be saved in this file. It is the output parameter. |
Press Control+S and then press Control+Q. | Now, I will save the project and exit blender. |
Open the file manager and go to the Videos folder. | Open the file manager.
Go to the videos folder, where the rendered file is saved. |
Cursor next to the newly rendered file. | Notice the rendered mp4 file in the directory. |
Show the rendered file icon. | We can open the file in a video player or on the web browser. |
Show playing the rendered video for few seconds. | Play the video and check if any changes are needed. |
Close the rendered video. | If you wish to make more changes, do them and render again. |
Slide Number 8
Shortcut keys Show/hide information N panel or Sidebar Copy a strip Shift+N Effects menu Shift+A Delete X Go to current frame Numpad+0 |
Knowledge of shortcut keys are very useful.
Few shortcuts are shown here. Please study them. |
Slide Number 9
Summary |
Now let's summarize. In this tutorial, we, learned about,
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Slide Number 10
Summary |
* Rendered a video and created an output file
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Slide Number 11
Assignment |
For assignment activity, please do the following.
Using the video file assignment.webm provided in the code files link,
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Slide Number 12
Assignment https://commons.wikimedia.org/wiki/File:Annual_Sea_Ice_Minimum_1979-2013_with_Area_Graph.ogv |
The file provided for assignment is downloaded from the site shown here.
You may also use a video of your choice |
Slide Number 13
Spoken Tutorial Project |
This video summarises the Spoken Tutorial Project .
Please download and watch it. |
Slide Number 14
Spoken Tutorial workshops
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The Spoken Tutorial Project team,
Please write to us. |
Slide Number 15
Forum for specific questions: |
Please post your timed queries in this forum. |
Slide Number 16
Acknowledgment |
Spoken Tutorial Project is funded by MHRD, Government of India.
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This is Rani from IIT Bombay. Thank you for joining. |