How to create Texture blending?

Questions & Answers
1

I want create a Splat Map to a non-terrain object like in Car_Tutorial, How to generate Splat Map? Using Photoshop? Or plug-in? And are there any tools that exist for using generate Splat Map?

3

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You can use this Layer Shader from the wiki to blend a 2 map terrain. There's even a 4 map and a 2 map + bump shader.

2

I haven't had time to look at the car tutorial yet and I don't fully understand your question, however...

Can you use "Color.a" on two textures to blend them?