How to achieve dusty looking on a surface, making a particle system was my first opinion but then I changed my mind!
It would've cost too much and now I'm stuck.
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$\begingroup$ Here's a possible way: blenderguru.com/tutorials/how-to-add-dust $\endgroup$ – Carlo Jul 21 '16 at 20:02
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1$\begingroup$ blenderguru.com/tutorials/how-to-add-dust $\endgroup$ – rcgauer Jul 21 '16 at 20:02
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There are a couple ways of doing this. Here's one way in cycles as your question didn't specify which engine you are using.
Start by adding an input>geometry node using the normal output.
Next, add a Separate XYZ node, you will be using the Z output.
A color ramp will be next, this will control the mix between the dust layer and the rest of the material. Plug this and the preceding 2 nodes into the Fac of the mix shader as shown below.
- You can either use a diffuse shader colored as you want your dust, or use a suitable image for your dust, it will go in the bottom input of a mix shader.
Here is the node setup with an image texture, to use without, simply don't use it.
This is a suzanne with the above material:
answered Jul 22 '16 at 6:12
