MaterialPropertyBlock.AddVector
AddVector(name: string, value: Vector4): void;
void AddVector(string name, Vector4 value);
def AddVector(name as string, value as Vector4) as void
AddVector(nameID: int, value: Vector4): void;
void AddVector(int nameID, Vector4 value);
def AddVector(nameID as int, value as Vector4) as void
Description

Add a vector material property.

	// Draws 3 meshes with the same material but with different colors.

var aMesh : Mesh; var aMaterial : Material = new Material(Shader.Find("VertexLit"));

function Update() { var materialProperty : MaterialPropertyBlock = new MaterialPropertyBlock();

// red mesh materialProperty.Clear(); materialProperty.AddVector("_Color",Vector4(1,0,0,0.5)); Graphics.DrawMesh(aMesh, Vector3(0,0,0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);

// green mesh materialProperty.Clear(); materialProperty.AddVector("_Color",Vector4(0,1,0,0.5)); Graphics.DrawMesh(aMesh, Vector3(5,0,0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);

// blue mesh materialProperty.Clear(); materialProperty.AddVector("_Color", Vector4(0,0,1,0.5)); Graphics.DrawMesh(aMesh, Vector3(-5,0,0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty); }
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public Mesh aMesh;
    public Material aMaterial = new Material(Shader.Find("VertexLit"));
    void Update() {
        MaterialPropertyBlock materialProperty = new MaterialPropertyBlock();
        materialProperty.Clear();
        materialProperty.AddVector("_Color", new Vector4(1, 0, 0, 0.5F));
        Graphics.DrawMesh(aMesh, new Vector3(0, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);
        materialProperty.Clear();
        materialProperty.AddVector("_Color", new Vector4(0, 1, 0, 0.5F));
        Graphics.DrawMesh(aMesh, new Vector3(5, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);
        materialProperty.Clear();
        materialProperty.AddVector("_Color", new Vector4(0, 0, 1, 0.5F));
        Graphics.DrawMesh(aMesh, new Vector3(-5, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public aMesh as Mesh

	public aMaterial as Material = Material(Shader.Find('VertexLit'))

	def Update() as void:
		materialProperty as MaterialPropertyBlock = MaterialPropertyBlock()
		materialProperty.Clear()
		materialProperty.AddVector('_Color', Vector4(1, 0, 0, 0.5F))
		Graphics.DrawMesh(aMesh, Vector3(0, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty)
		materialProperty.Clear()
		materialProperty.AddVector('_Color', Vector4(0, 1, 0, 0.5F))
		Graphics.DrawMesh(aMesh, Vector3(5, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty)
		materialProperty.Clear()
		materialProperty.AddVector('_Color', Vector4(0, 0, 1, 0.5F))
		Graphics.DrawMesh(aMesh, Vector3(-5, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty)

Function variant that takes nameID is faster. If you are adding properties with the same name repeatedly, use Shader.PropertyToID to get unique identifier for the name, and pass the identifier to AddVector.
	// Draws 3 meshes with the same material but with different colors.
	// Using the material tag ID.

var aMesh : Mesh; var aMaterial : Material = new Material(Shader.Find("VertexLit"));

function Update() { var materialProperty : MaterialPropertyBlock = new MaterialPropertyBlock(); var tagID : int = Shader.PropertyToID("_Color");

// red mesh materialProperty.Clear(); materialProperty.AddVector(tagID,Vector4(1,0,0,0.5)); Graphics.DrawMesh(aMesh, Vector3(0,0,0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);

// green mesh materialProperty.Clear(); materialProperty.AddVector(tagID,Vector4(0,1,0,0.5)); Graphics.DrawMesh(aMesh, Vector3(5,0,0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);

// blue mesh materialProperty.Clear(); materialProperty.AddVector(tagID, Vector4(0,0,1,0.5)); Graphics.DrawMesh(aMesh, Vector3(-5,0,0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty); }
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public Mesh aMesh;
    public Material aMaterial = new Material(Shader.Find("VertexLit"));
    void Update() {
        MaterialPropertyBlock materialProperty = new MaterialPropertyBlock();
        int tagID = Shader.PropertyToID("_Color");
        materialProperty.Clear();
        materialProperty.AddVector(tagID, new Vector4(1, 0, 0, 0.5F));
        Graphics.DrawMesh(aMesh, new Vector3(0, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);
        materialProperty.Clear();
        materialProperty.AddVector(tagID, new Vector4(0, 1, 0, 0.5F));
        Graphics.DrawMesh(aMesh, new Vector3(5, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);
        materialProperty.Clear();
        materialProperty.AddVector(tagID, new Vector4(0, 0, 1, 0.5F));
        Graphics.DrawMesh(aMesh, new Vector3(-5, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty);
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public aMesh as Mesh

	public aMaterial as Material = Material(Shader.Find('VertexLit'))

	def Update() as void:
		materialProperty as MaterialPropertyBlock = MaterialPropertyBlock()
		tagID as int = Shader.PropertyToID('_Color')
		materialProperty.Clear()
		materialProperty.AddVector(tagID, Vector4(1, 0, 0, 0.5F))
		Graphics.DrawMesh(aMesh, Vector3(0, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty)
		materialProperty.Clear()
		materialProperty.AddVector(tagID, Vector4(0, 1, 0, 0.5F))
		Graphics.DrawMesh(aMesh, Vector3(5, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty)
		materialProperty.Clear()
		materialProperty.AddVector(tagID, Vector4(0, 0, 1, 0.5F))
		Graphics.DrawMesh(aMesh, Vector3(-5, 0, 0), Quaternion.identity, aMaterial, 0, null, 0, materialProperty)