Bloom Won't Export Transparent? Here's Why
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Learn how to create and export bloom effects in Blender with transparent backgrounds. Perfect for use in OBS or your video editor of choice.
Add Bloom 1.3 - Gumroad | https://michaelbridges.gumroad.com/l/...
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Thank you to everybody who supported the add-on through its development. Without you, this could not be done!
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🍿 WATCH NEXT:
• Where The Heck is Bloom in Blender 4?
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WHO AM I?
Hi there! 👋 I'm Mike, and I'm relatively new to YouTube. I've been teaching Blender professionally for over 10 years, and I'm excited to share my knowledge with the community here. On this channel, you'll find full guides, courses, and tools to help guide, reassure, and educate you on your Blender journey. Let's create something amazing together!
⌚️Timestamps:
00:00 - Start
00:17 - Adding Glare Node to The Compositor
00:29 - Creating Our Emissive Object
00:36 - Bloom Settings
01:15 - Setting Up Compositor For Export
02:57 - Add Transparency
05:29 - Using Bloom In OBS / Other Programs
07:51 - Setting Up An Animation
09:51 - Out As Video
12:45 - Layering Video In Blender
16:24 - Animated Transparent Video With Bloom In OBS
PS: Some of the links in this description are affiliate links that I get a kickback from 😜
In this video, I dive into how to create stunning bloom effects in Blender and export them as transparent assets for use in other programs like OBS. I take you through my full thought process, exploring how bloom works and why transparency is essential when layering visuals over different backgrounds. This isn’t just about getting a glow—it's about controlling how that glow interacts with other elements in your scene.
I look at how to structure your setup inside Blender to separate the bloom from the base object, ensuring that when you export it, you have both the glow and a proper silhouette to occlude what’s behind. Then, I show how to bring this setup into OBS, demonstrating how blending modes like Add and Screen affect the final look and discussing common pitfalls like dark borders and layering issues.
Later, I shift focus to animation. I set up a simple loop and explain how to export the animation with full transparency—not just as image sequences but as actual video files. I also walk through which formats and codecs support alpha channels, showing how to get high-quality transparent video output directly from Blender.
The video wraps up by showing how everything comes together in OBS using media sources and grouping, giving a clean, glowing animated effect that looks professional and polished.
Curious how to avoid those weird glowing artifacts or wondering what video formats truly support transparency? I cover that too.