Some tutorials by example to implement realistic textures in Blender:
https://www.youtube.com/watch?v=W07H7xeUnGE
https://www.youtube.com/watch?v=9PJL0eAuZ_E
I’d used this texture from http://www.cgtextures.com/:
And the http://www.crazybump.com/ to generate the normal and oclusion map:
You can use the Unity tools for using the Normal and Occlusion Map, just drag the images NRM/OCC to the variable Normal/Occlusion map residing in the desired material object, in this case the wall of the house:
Before:
After:
Before:
After:
Júlio Vale
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Hi Julio,
Nice info and tutorial about the importance of bump maps. They really make the scene look less flat/more realistic and that is done by image manipulation only. Playing with the shader parameters is very important to tune up object appearance.
CrazyBump is a handy tool illustrating the effect immediately on a model. I could not understand if the evaluation is a full product or a limited version in time (?).
Image: two bump effect variations from the base texture at left.
CrazyBump is great but creating a basic bump map is easily done with any capable image editor (free ones like Gimp or the easy Paint.Net where I did the maps for the above image) and tweaking image saturation, contrast and exposure/brightness (look at this video made for Blender but the same info can be used with a standard image editor)
Bump maps and normal maps serve the same purpose and the terms are often used synonymously but there are certain differences (Unity knows it and does the conversion). More info about this and the useful applications of these image techniques at:
http://wiki.blender.org/index.php/Doc:2.4/Manual/Textures/Influence/Material/Bump_and_Normal
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