Module V-Render Preview and Movie Making.pptx
- 1. Module V-Render Preview and Movie Making • Rendering is the process of converting the Blender file information into an Image file or a Video file. • There are three separate rendering systems in Blender. Eevee Cycles Workbench. This section explains the basic render procedure using the default Eevee system.
- 2. Render Preview • Pressing F12 displays the Blender Render panel showing a Render Result. (preview only. It is NOT a Rendered Image).
- 3. Rendering an Image • The first step in Rendering an Image is to set the Sampling required • The second step to consider Ratio and the Dimension of the image.(output file format). Output File Format • how big to make your image, • the shape of the image, • the quality of the image (Resolution), • the animation where to start and stop rendering • how fast you want to play back.
- 4. Resolution X : The number of pixels wide in the display. Y: The number of pixels high in the display. The default File Format for a Rendered Image is: PNG (Portable Networks Graphics). • You can select the alternatives • Click on Save Image.
- 5. Rendering a Video Clip • video clips are made from animation frames compiled into a sequence. • playing the animation means going through the image files in the /tmp Folder. • But complex animations could have thousands of image files, causing a storage issue. To save space, render the animation sequence into a single Movie File. • Video file formats compress the data from the rendered animation into a instead of the series of image files. • Rendering an image for each frame is that the default output file type is PNG which is an image file. Important: Before you Render with the video file format clean out the tmp folder.
- 6. • Go look in your /tmp folder and you will find a single video file Video Codecs • changing the default PNG file format to AVI Raw, elected to use the AVI Raw Video Codec. This tells the computer how you want your animation data encoded. • A Codec is a little routine that compresses the video so that it will fit on a DVD, or be able to be streamed over the internet, or over cable, or just be a reasonable file size.
- 7. • When you have used the encoded data to create a video CD or DVD, the CD or DVD is played in a device (CD / DVD Player) which decodes the data for display i.e. Television Screen. Creating New Scenes • Even a simple Blender file can contain data for animations, like the strokes forming characters and scenery, organized into layers within collections. • When you watch a movie, you'll notice different views and angles that change as the story progresses, adding to the atmosphere. Despite this complexity, all the data for a single Blender file can render into one video file. you can have multiple scenes within one Blender file. • This sequence consists of 30 frames, running at 24 frames per second, resulting in 1.25 seconds of animation.
- 8. The Storyboard • The plan will be to create three video clips which eventually will be combined into a single movie file. • Let's say have the Ball bounce around for approximately 3.75 seconds (30 frames at 24 Frames per second times three) which will be the first clip (Scene 1). • The second clip will see a second ball introduced to the Scene with both bouncing for another 3.75 seconds (Scene 2) followed by more Balls bouncing for yet another 3.75 seconds (Scene 3). When combined the clips will produce a Video File which will play for 11.25 seconds.
- 9. Extend the Sequence • The Animation Sequence in the Dope Sheet Timeline Editor • press the B Key and drag a rectangle selecting Frames 2 to 30 inclusive.
- 10. • Press Shift plus the D Key to duplicate the selection then drag the Mouse Cursor positioning the duplicated Frame 2 at frame 31. • At this point the last Keyframe is positioned at Frame 59. Press Shift D a second time duplicating the selection and drag the Mouse Cursor positioning Frame 31 at Frame 60.
- 11. • The Animation Time for the extended sequence is 88 Frames divided by 24 Frames per second = 3.66 seconds.
- 12. Adding a Scene • The extended Animation Sequence is in the default Scene in the Blender File. • Note: Only one Scene in the File. • The default Scene will be used for creating the first Video Clip.
- 13. Creating a New Scene • To add a New Scene: • Click the New Scene button in the Header. • Select "Full Copy" from the menu. • Selecting Full Copy duplicates the data, creating the Animation Sequence in the New Scene.
- 14. Working with New Scene • The Outliner Editor immediately displays the data for the New Scene. • Note: Collection.001 and Stroke.001. • The Browse Scene to be Linked button shows Scene and Scene.001. Modifying Animation Timeline • With Scene.001 displayed, you can make modifications for producing the second Video Clip. • In the 2D Viewport Editor, in Object Mode, duplicate, scale down, translate, and rotate the circle/ball duplication.
- 15. Modifying Strokes • To duplicate Strokes, with the Mouse Cursor in the 2D Viewport Editor, press Shift + D Key. • Drag the Mouse to reposition the duplicate. • Note the additions to the Outliner Editor (Stroke.002, Stroke.003, and Stroke.004). • By Shift-selecting all three Strokes, you will display the Timelines for each Stroke in the Dope Sheet Timeline.
- 17. Create Video Clips • Important :Clean out the tmp Folder. change the File Format from PNG to AVI JPEG. • Screen Header select Render – Render Animation. • go to the tmp Folder • rename the file and move it to a different Folder. • When the next Scene is Rendered the File will be overwritten with the same File Name (number) if not moved. • The Clips are ready for compiling into a Movie File.
- 18. Movie Making Movies are made by piecing together Video or Movie Files. following terminology will be used Movie Making process A Movie File: final compilation including Video files, Audio files and Special Effects. A Video File: the File which is produced (Rendered) from an Animation Sequence. File Formats are determined by the type of Codec employed when Rendering. (Codec is computer code that compresses Video and Audio data into a manageable size for viewing, file transfer and storage).
- 19. • An Animation Sequence The Animation Sequence is produced in different Keyframes in the Timeline Editors. • Piecing together the Files is performed in Blender's in built Video Sequence Editor (VSE). The VSE is found in the Video Editing Workspace. Video Editing Workspace Video assembly is performed in the Video Editing Workspace accessed in the Screen Header. Click on File, then New and select Video Editing.
- 20. • Video assembly is performed in the Video Editing Workspace accessed in the Screen Header. • Click on File, then New and select Video Editing. The Video Editing Workspace is made up from five Editors; • The File Browser, • The Video Sequencer in Preview Mode, • The Properties Editor, • The Video Sequencer Editor in Sequencer Mode • The Timeline Editor.
- 21. Video Sequencer Modes are selected in Sequencer Header • File Browser Editor: It shows Folders in the Documents Folder (on a Windows PC). • Properties Editor: displays with the Output Properties Tab opened showing Dimensions, /tmp Folder.
- 22. Placing files in the VSE Find the Video Files • The File Browser in the VSE Workspace. • It shows folders in Thumbnail Display Mode by default. • Click on a video file, drag it into the Video Sequencer panel, and drop it in Channel 1. • You'll see a preview of the first frame. • Repeat for each file, placing them in Channels 1, 2, and 3. • You can also place files end to end in a single channel. • Drag files to align their first frames with the blue cursor line.
- 24. Placing Files in the VSE (Alternative Method) • Click on Add in the VSE Header and select the type of file you wish to enter in the menu that displays. Ex,you are entering a Video File which was Rendered as an .avi file. Blender recognises this as a Movie file, therefore, select Movie. • In the File Browser that opens navigate to the folder containing your Video Files and select a File. Click Add Movie Strip
- 25. Rules - When placing Files in the VSE -Video Files automatically locate with the first Frame at the position of the VSE Cursor. -Using the Add method places a File in the next available Channel. -When playing a Preview, a File in a higher Channel takes precedence over a File in a lower Channel, therefore, if the Files overlap the File in the higher Channel begins playing before the File in the lower Channel finishes. Audio files – Sound -Sound Effects and Music which come in the form of an Audio File, significantly add to a presentation. -When a preview is played the Audio File (Sound File) plays.
- 26. Timeline Graduations / Positions • The default VSE Timeline graduations display with the VSE Cursor at 0+01. With the start of Video File at the VSE Cursor, Frame 1 displays in the Timeline Editor. • In the VSE you see faint vertical lines at 1+00, 2+00, 3+00 etc. Placing the VSE Cursor at 1+00 in the VSE Timeline sees Frame 24 as the position in the Timeline Editor.
- 27. • There are 24 Frames between 0+01 and 1+00, therefore, between 1+00 and 2+00 etc. -For the moment consider the default graduation display (NO Files entered in the VSE). 0+00=No Frame, 0+01=Frame 1, 1+00=Frame 24, 2+00=Frame 48, 3+00=Frame 72 -There are 24 Frames between each major graduation, therefore, to accurately position the Cursor at a Frame, say Frame 51, the cursor position is: 2 X 24 +3 = 51.