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Howto:Multi-channel lightmap: Difference between revisions
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Import the "baked" Blender lightmaps into Gimp. If you baked a three color channel lightmap you can proceed to the section on converting the greyscale to alpha. | Import the "baked" Blender lightmaps into Gimp. If you baked a three color channel lightmap you can proceed to the section on converting the greyscale to alpha. | ||
[[File:Tutorial 05.jpg|thumb|Changing greyscale to one color channel]] | |||
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If not then with only the greyscale lightmap layer that you want to convert to the the first rgb color channel (r) selected, click on the Channel tab. De-select green and blue channels. All that you should have selected is the red and alpha channels. Save visible to new layer. This new layer is now the red channel layer (the first channel) of what will be your four channel lightmap. Repeat this process for the greyscale image (lightmap) that is going to represent the green channel and again for the one that will represent the red channel. | |||
[[File:Tutorial 06.jpg|thumb|Duplicate greyscale for alpha conversion]] | [[File:Tutorial 06.jpg|thumb|Duplicate greyscale for alpha conversion]] | ||