———————————————————– UPDATE ———————————————————–
This tutorial is old and clumsy, so to give you a clearer view on how to paint textures, I’ve created a newer tutorial on texture painting for both Cycles and BI in Blender 2.65.
You’re welcome to watch this tutorial still, but just note that it’s more on the use of Stencils than actual painting, and all the bits about actual painting were confusing to me at the time of recording, so I highly suggest you watch the newer version.
Texture painting is a finicky thing, but a very necessary skill if you plan on being any good at texturing.
So in this tutorial you’ll learn all the little settings that need to be enabled for you to paint directly onto the model in the viewport.
Important Things to Note:
- The model has to be UV unwrapped and should ideally not have any overlapping faces
- ‘RGB to Intensity’ must be enabled in the stencil texture’s influence panel
- You can paint in any of the material modes (GLSL, Multitexture or Texture Face) but you will only see the results of the stencil map in GLSL mode (you will see the b/w stencil map image in the other two modes)
- The black parts of the stencil map is what shows the top texture through (the one above the stencil texture on the textures tab)
- Painting on white will show the textures below the stencil map
- You have to save the stencil map in the image editor after you’re finished working with it. If it is not saved on your hard drive, it will cease to exist when you close Blender (or sometimes just exit texture paint mode [old versions?])
Like I said, texture painting is finicky. If you have any troubles getting it to work, check the important points above or try some of these:
- Check or uncheck ‘Textured Solid” in the properties bar (‘N’)
- Make sure all the textures (especially the stencil one) is using UV coordinates (under Mapping in the Textures tab)
- Try painting in grey instead of white or black to check that you’re not painting the wrong colour
Not-So-Important Things to Note
- Using a stencil map is not the only way to do texture painting. You can paint manually with different colours or using images on a normal texture. (Best to create a new transparent texture to lay over so you don’t overwrite the one saved on your hard drive)
- Any changes in colour, brightness or things like that in the textures tab will not be shown in GLSL mode
- You can change the brush size, colour, strength, texture and all sorts of settings in the toolbar (‘T’)
- I said in the video that the “Fixed Texture” option makes sure the texture doesn’t smear. However, I tested that and it didn’t work. There is an option in Sculpt Mode that does that, but not for Texture Painting. I tested a few more theories, and I can’t actually figure out what it does. If you know, please tell us in the comments :)
Hope I haven’t left anything out :) if you think of something, comment below!