koobas.hobune.stream
iPhone Shader - Unlit, 2 textures (alpha blend), Base needs tint.
Hello Unity Community.
Thank you for taking the time to check out my question. I am trying to put a shader together. I snipped bits and piaces from all over. Including one of Jessy's answers on a blend material.
http://answers.unity3d.com/questions/32386/iphone-blend-two-textures-additive-blending.html
Which is great but I needed was a little closer to the Unity example on Texture blends.
Shader "Examples/2 Alpha Blended Textures" {
Properties {
_MainTex ("Base (RGB)", 2D) = "white" {}
_BlendTex ("Alpha Blended (RGBA) ", 2D) = "white" {}
}
SubShader {
Pass {
// Apply base texture
SetTexture [_MainTex] {
combine texture
}
// Blend in the alpha texture using the lerp operator
SetTexture [_BlendTex] {
combine texture lerp (texture) previous
}
}
}
}
The problem is that it does not allow me to Tint I have been trying to add it from other bits of code but with no luck. The closest thing I found was a Unlit shader with the ability to alter the tint that someone made, Then I added the blend alpha texture part of the shader and it works but parts of it are semi transparent and I am having a hard time figuring out why.
This is the closest shader I was able to snip together to do what I want. How would I remove the semi transparent aspect of it.
Shader "Unlit/AlphaSelfIllum TexBlend" {
Properties {
_Color ("Color Tint", Color) = (1,1,1,1)
_MainTex ("SelfIllum Color (RGB) ", 2D) = "white"
_BlendTex ("Alpha Blended (RGBA) ", 2D) = "white" {}
}
Category {
Lighting On
ZWrite Off
Cull Back
Blend SrcAlpha OneMinusSrcAlpha
Tags {Queue=Transparent}
SubShader {
Material {
Emission [_Color]
}
Pass {
SetTexture [_MainTex] {
Combine Texture * Primary, Texture * Primary
}
// Blend in the alpha texture using the lerp operator
SetTexture [_BlendTex] {
combine texture lerp (texture) previous
}
}
}
}
}
bump.
That is always the problem with more advanced questions. It takes so much longer to get an answer. I can only hope some expert walks into this question by chance.
You haven't said what you want to do with the alpha blend. I'm going to go with the assumption that you want the alpha channel of "Color Tint" to provide a constant value until you say otherwise.
(Lighting, and the Category block, were not useful to you. Just paste this in place of your Category block.)
SubShader {
Tags {"Queue"="Transparent"}
ZWrite Off
Blend SrcAlpha OneMinusSrcAlpha
Pass {
SetTexture[_MainTex] {
ConstantColor[_Color]
Combine texture * constant, constant
}
SetTexture[_BlendTex] {Combine texture Lerp(texture) previous, previous}
}
}
Thank you Jessy, this works great. I did not know what ZWrite Off actually does or Tag..And its not what I needed but once removed it worked great.
Thank you for your time.
Sorry if I did not explain it correctly. again. Thank you, I spent a lot of time yesterday trying to figure this out.
