World tri planer shader but on local to object?

Questions & Answers
1

I was able to get a shader together that allows me to show a texture over multiple objects which works really well, but as soon as these objects start moving around then the texture stays still, I want the texture to move with the objects… but I am not sure how to make sure the texture goes with the objects.

Here is my shader code:

Shader “Tri-Planar World” {
Properties {
_Color (“Color”, Color) = (1,1,1)
_Side(“Side”, 2D) = “white” {}
_Top(“Top”, 2D) = “white” {}
_Bottom(“Bottom”, 2D) = “white” {}
_SideScale(“Side Scale”, Float) = 2
_TopScale(“Top Scale”, Float) = 2
_BottomScale (“Bottom Scale”, Float) = 2
}

SubShader {
Color [_Color] Pass {}
	Tags {
		"Queue"="Geometry"
		"IgnoreProjector"="False"
		"RenderType"="Opaque"
	}

	Cull Back
	ZWrite On
	
	CGPROGRAM
	#pragma surface surf Lambert
	#pragma exclude_renderers flash

	sampler2D _Side, _Top, _Bottom;
	float _SideScale, _TopScale, _BottomScale;
	
	struct Input {
		float3 worldPos;
		float3 worldNormal;
	};
		
	void surf (Input IN, inout SurfaceOutput o) {
		float3 projNormal = saturate(pow(IN.worldNormal * 1.4, 4));
		
		// SIDE X
		float3 x = tex2D(_Side, frac(IN.worldPos.zy * _SideScale)) * abs(IN.worldNormal.x);
		
		// TOP / BOTTOM
		float3 y = 0;
		if (IN.worldNormal.y > 0) {
			y = tex2D(_Top, frac(IN.worldPos.zx * _TopScale)) * abs(IN.worldNormal.y);
		} else {
			y = tex2D(_Bottom, frac(IN.worldPos.zx * _BottomScale)) * abs(IN.worldNormal.y);
		}
		
		// SIDE Z	
		float3 z = tex2D(_Side, frac(IN.worldPos.xy * _SideScale)) * abs(IN.worldNormal.z);
		
		o.Albedo = z;
		o.Albedo = lerp(o.Albedo, x, projNormal.x);
		o.Albedo = lerp(o.Albedo, y, projNormal.y);
	} 
	ENDCG
}
Fallback "Diffuse"

}

2

Sounds an awful lot like… Get local position in surface shader - Unity Answers