Post by @Ryu@furry.engineer

2026-09-28 11:10 UTC

The Bubble effect is handled by Cryptomatte + View Layers. Here is a quick screenshot I used geometry to generate the bubble in different view layer and use Matto to select them as alpha layer and use composite to cut it out as mask and also apply different color. Due to the fact, I&#39;m using the multiple layer composition, I can&#39;t preview the it in video editing (blender). I have to render the 4 mins video (for 8 hrs) to check it works fine in some details.

Replies (1)

@Ryu@furry.engineer 2026-09-28 11:17

and here is the geometry node. It's based on a YouTube Video from blender account. Why not particle system? because it's 4 mins + video. in order to cover all the video, I have to add a huge number of particle with metaball instance. It leads to a terrible performance. I only got 1 frame in my blender layout (6 particle system + Metaball merge). I'm not sure if the metaball or the total number particle drown my computer. so I move to geometry node. in somehow, I'm very comfortable with it, I used it a lot of in my previous project. Based on the video, I replace them with simple UV Mapped Sphere and added a bake node. For the bake node, the first time, I added the bake node in the end of the flow. Which created 20GB+ bake results. Which crash my laptop memory and storage (128GB memory consumption from blender). Then I change to only bake the points. Which only few Megabits.

Open ##5018071