How do I overlay a lightmap image on another texture?

Question

I just learned how to create a lightmap to add ambient occlusion to my object by following this explanation:

How do you bake ambient occlusion for a model?

Now I have a lightmap saved as an image (and currently mapped on my object), but I want to add a texture to my object as well. My texture is in an image file. I know how to add textures, but not overlaid ones. How do I do this in Blender Render?

lemon · Accepted Answer · 2016-06-01T10:43:18.497

2

A solution is to combine the baked AO texture with your texture using nodes.

Make a copy of your initial object (on the picture the original is white on the left and the copy is yellow on the right)
Assign a new material to the copy
Select the copy and open the node editor (bottom part here)
Add two textures : the baked one and yours (here i just used a full yellow texture)
Add a MixRGB color operator and set it to "multiply"
Connect them all as done on the picture

The result is shown on the top (in rendered mode)

Edit :

An alternative/better way in order to be closer to the original colors. It is using darken (MixRGB node) with a grey color (0.250). The darken effect is moderated by the inverted AOBacked texture.

Edit : for Blender Internal Render (same principle)

edited Jun 01 '16 at 10:43

answered Jun 01 '16 at 06:02

lemon

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This is in Cycles. I'm working in Blender Render. I should have mentioned that. – Anthony Forwood Jun 01 '16 at 08:11
Edited to add the equivalent for Blender Render – lemon Jun 01 '16 at 10:43
Thank you very much. I had just figured it out without using nodes, but this is far simpler. Now on to the next problem! :-) – Anthony Forwood Jun 01 '16 at 21:14

How do I overlay a lightmap image on another texture?

1 Answers1