blending materials with sliders

Questions & Answers
1

Hi,

I have a project where we have a room with diffrent lighting options. I wanted to texture bake the diffrent lighting options as a map and with a slider have the user blend between those diffrent options. I’m a novice when it comes to scripting,so if anyone can give some guidence on this and point me in the right direction I would greatly appreciate it.

Thanks!

2

You will find a very simple shader with blending posted here:

http://answers.unity3d.com/questions/392616/fade-shader-one-texture-fades-in-the-other-fades-o.html

Typically these shaders use _Blend as a variable so doing a Google search on “Unity3d _Blend shader” will produce hits.

I’ve never used it, but you might take a look at: Material.Lerp().

3

Hi,

Thanks for responding! I found the blend 2 textures shaders on the Wiki site

http://wiki.unity3d.com/index.php/Blend_2_Textures.

I’ve attempted to try to modify it to incorporate more that 2 textures. I was able to add a third but unfortunetly it will only blend the tex01 and 02 but not the third. I’m a new to writing shaders. Not sure what I did wrong here.

Here’s what I modified.

Shader "Blend 3 Textures" { 

Properties {
	_Blend01 ("Blend01", Range (0, 1) ) = 0.5 
	_Blend02 ("Blend02", Range (0, 1) ) = 0.5
	_MainTex ("Texture 1", 2D) = "" 
	_Texture2 ("Texture 2", 2D) = ""
	_Texture3 ("Texture 2", 2D) = ""
}

SubShader {	
	Pass {
		SetTexture[_MainTex]
		SetTexture[_Texture2]
		 
		{ 
	ConstantColor (0,0,0, [_Blend01]) 
	Combine texture Lerp(constant) previous
		}	
		
		SetTexture[_Texture2]
		SetTexture[_Texture3]
		{
	ConstantColor (0,0,0, [_Blend02]) 
	Combine texture Lerp(constant) previous
			}

	}

Any help would be greatly apperciated.

Thanks!