Additive GUI

Unity Engine
1

Can a render texture applied to a GUITexture be additive.

2

You could make a GUI camera looking at an object with an additive material applied if you didn’t feel like writing your own shader (perhaps a flat object if you’re looking at doing some sort of graphical overlay).

3

yes,

I did something like this for a project a little while back.

I think you need to remove a line of code in the shader though to make it work, but i was using particles…

I used the additive particle shader

Category {
	Tags { "Queue" = "Transparent" }
	Blend SrcAlpha One
	AlphaTest Greater .01

	Cull Off Lighting Off ZWrite Off Fog { Color (0,0,0,0) }
	BindChannels {
		Bind "Color", color
		Bind "Vertex", vertex
		Bind "TexCoord", texcoord
	}

I think i removed the ‘base’ line, or something like that from the additive particle shader, and it worked.