ato de matomeru!!!

CheckUV.shader

Shader "Custom/CheckUV" {
	CGINCLUDE
		sampler2D _MainTex;
		struct Input {
			float4 vColor;
			float2 tex;
		};
		void vert (inout appdata_full v, out Input o){
			UNITY_INITIALIZE_OUTPUT(Input,o);
			o.vColor = v.color;
			o.tex = v.texcoord.xy;
		}
		void surf (Input IN, inout SurfaceOutput o) {
			half3 c = half3(
				IN.tex,
				ceil((fmod(IN.tex.x*10,1)-0.5)*(fmod(IN.tex.y*10,1)-0.5))/2
			);
			o.Emission = c;
		}
	ENDCG
	SubShader {
		Tags { "RenderType"="Opaque" }
		LOD 200
		CGPROGRAM
		#pragma surface surf Lambert vertex:vert noforwardadd
		ENDCG
	} 
	FallBack "Diffuse"
}

Tex2VertColor.cs

using UnityEngine;
using System.Collections;

public class Tex2VertColor : MonoBehaviour
{
	public Texture2D tex;
	// Use this for initialization
	void Awake ()
	{
		Mesh mesh = GetComponent<MeshFilter> ().mesh;
		if (mesh == null || tex == null) {
			Destroy (this);
			return;
		}
		Color[] colors = new Color[mesh.vertexCount];
		for (int i = 0; i < colors.Length; i++) {
			int
			x = Mathf.FloorToInt ((mesh.uv [i].x % 1f) * tex.width),
			y = Mathf.FloorToInt ((mesh.uv [i].y % 1f) * tex.height);
			colors [i] = tex.GetPixel (x, y);
		}
		mesh.colors = colors;

		Destroy (this);
	}
}