Creating a Scratched / Smudged Glass material
Materials1. Glass with Scratches…
BASE LAYER…
- Create a Glossy Layer.
- Use a White color in both Reflectance & Transmittance.
- Select a color for the Absorption. (optional)
- Increase Absorption value based on the object’s size. (optional)
SCRATCHES LAYER…
- Make a copy of the Base Layer (Right-Click & Duplicate)
- Move it at the top.
- Change the Layer Weight to a value of ~10%.
- Load a Scratch map in the Bump Channel and lower the value to something like 10%.
Adjust the scratches effect by changing the Layer Weight of the Scratches Layer.
2. Glass with Smudges
Contrary to scratches, smudges or fingerprints need a different semi-transparent layer on their own.
BASE LAYER…
- Create a Glossy Layer.
- Use a White color in both Reflectance & Transmittance.
- Select a color for the Absorption.
- Increase Absorption value (depends on the size of the object).
DIRT LAYER…
- Create a Basic Layer.
- Select a bright color for the Diffuse Channel (not over 220,220,220)
- Load the Dirt Map in the Layer Weight and adjust the percentage.
- Select White for the Reflection Channel.
- Increase Roughness to 25%.
Adjust the scratches effect by changing the Layer Weight of the Scratches Layer.