This uses inviso masks to hide the outer portions of the 'open parchment'. The smaller cube whilst physically in front of the image can be placed behind some item within the photo by using an Inviso mask fashioned to match the exact shape of that item, such as the tree trunk above. This is most useful for a variety of applications. When the effect is active, objects and parts thereof that end up behind the mask can be ->selectively<- rendered invisible. 'Inviso mask' - This is a term I've adopted for the effect we get in Blender when rendering using OpenGL and giving a 2D plane a material slot with Transparency set to 0.008, Specular set to zero. (Press N)Īs far as dispensing with the text and black box, you're only limited by your imagination. Video sequence but within an additional strip in the VSE, the video can be reversed with that button in the strip's properties. If desired it can slide down to be concealed again, or using the same The text is also placed higher in the Z axis than the solid black rectangle and will be seen to slide up 'inside' the black area. Only those parts that are higher in the Y axis than the mask will be visible. This is normally the default anyway on a newly fired up instance of Blender.Įxplanatory - Have a look at the Blender file to see that I've simply laid text, mask, and solid black plane flat near the 'ground', the camera directly overhead and looking down.Īn "Inviso" mask moves in unison with the black box/plane and used to conceal the text ascending in the Y axis. This time the "Sequencer" box should be ticked in the "Post Processing" tab. What should end up being produced is a sequence of alpha layered video frames in the form of PNG files, ready to import as an "Image Sequence" in a seperate instance of Blender, and it's VSE. You won't have a transparent overlay video otherwise. Set the ouput format to "PNG" and make sure to press the RGBA button at hard right. You don't want extras in there, causing mayhem! The output folder should be set to one created for this job because there's going to be a host of single-frame files. The Post processing tab's boxes should be unticked for safety until actually using the VSE. In the rendering properties panel at extreme right, set the "Shading" tab to "Transparent". (Don't blink)Īs you're already overlaying a background video with text, we'll stick to that plan here and output the result using the "OpenGL" animation render, (top left of 3D window, under "Render")Īll settings as setup in the Blend file should work straight off, except for the output folder and your own background video. To view the animation properly, get yourself into the camera view first, (numpad's Zero key) and then press CTL-A to set it going. DON'T RENDER BEFORE YOU DO THIS! You could end up with umpteen dozen files sitting somewhere! All you need to do is assign your own output folder and path for the output video/image sequence. Pretty much all of the elements and where they're needed have been placed into the 3D set/stage and placarded.Īll settings needed to produce your overlay video have been preset prior to uploading. To use it again and again, simply edit the text and re-render. It will be seen rising between the bottom edge of the video and the black box.ĭoing this in Blender's 3D window/workspace would be a straight forward job with no problems. As commented above and assuming you're talking about "Chapter 26" at around the 20+ second mark -Ī problem I can see with trying to do this in the VSE is coping with the text itself.
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