In this Blender tutorial video, we will show how to make a soap bubble in Blender with using thin film interference in Principled BSDF shader. Thin film interference is a new feature in Blender 4.2, we can apply this material setting for making thin material with beautiful reflection and refraction. In this tutorial, we will show how to make a soup bubble with material with Thin Film Interference, therefore, we can have colorful shading on transparent soap bubble. All steps will be shown in this YouTube video visually, happy sharing and I hope this helps. More Blender Tutorial are available here.
How to make a bubble in Blender
We can follow below steps to make a soap bubble and material in Blender 4.2 or later.
1. Add a sphere, or a metaball
2. Go to Shader Editor, and switch to Object
3. Add a new material with Principled BSDF shader node
4. Adjust Roughness to 0 to make shader shiny
5. Set IOR to 1, to make less the refraction
6. In Transmission, set the weight to 1, to make shader transparent
7. Go to Thin Film, set Thickness to 400 nm
8. In Thin Film, set IOR to 1.5-1.7 , to make colorful reflection and refraction.
Alternative, all steps will be shown visually in this Blender tutorial video on YouTube channel, we can watch here,
Timestamp 0:00 Intro – Soap Bubble material using Thin Film Interference 0:14 Add MetaBall 0:42 Set Cycles as Render Engine 0:48 Set environment using default HDRI 1:14 Add Soap Bubble Material 1:41 Set Thin Film Interference 2:15 add color variation on Thin Film using noise texture
