MaterialPropertyBlock.SetColor

参数

描述

设置颜色属性。

向块添加属性。如果已存在具有给定名称的颜色属性，则替换旧值。

颜色值被认为始终在 sRGB 空间中设置，如果活动颜色空间是线性空间，则将其转换为线性空间。如果在颜色空间之间切换，则需要手动更新颜色值。

using UnityEngine;

// Draws 3 meshes with the same material but with different colors.
using UnityEngine;
public class ExampleClass : MonoBehaviour
{
    public Mesh mesh;
    public Material material;
    private MaterialPropertyBlock block;

    void Start()
    {
        block = new MaterialPropertyBlock();
    }

    void Update()
    {
        // setup render params
        RenderParams rp = new RenderParams(material) {matProps = block};

        // red mesh
        block.SetColor("_Color", Color.red);
        Graphics.RenderMesh(rp, mesh, 0, Matrix4x4.Translate(new Vector3(0, 0, 0)));

        // green mesh
        block.SetColor("_Color", Color.green);
        Graphics.RenderMesh(rp, mesh, 0, Matrix4x4.Translate(new Vector3(5, 0, 0)));

        // blue mesh
        block.SetColor("_Color", Color.blue);
        Graphics.RenderMesh(rp, mesh, 0, Matrix4x4.Translate(new Vector3(-5, 0, 0)));
    }
}

使用 nameID 的函数变体速度更快。如果您要重复更改相同名称的属性，请使用 Shader.PropertyToID 获取名称的唯一标识符，并将标识符传递给 SetColor。

using UnityEngine;

// Draws 3 meshes with the same material but with different colors.
using UnityEngine;
public class ExampleClass : MonoBehaviour
{
    public Mesh mesh;
    public Material material;
    private MaterialPropertyBlock block;

    void Start()
    {
        block = new MaterialPropertyBlock();
    }

    void Update()
    {
        // setup render params
        RenderParams rp = new RenderParams(material) {matProps = block};

        // red mesh
        block.SetColor("_Color", Color.red);
        Graphics.RenderMesh(rp, mesh, 0, Matrix4x4.Translate(new Vector3(0, 0, 0)));

        // green mesh
        block.SetColor("_Color", Color.green);
        Graphics.RenderMesh(rp, mesh, 0, Matrix4x4.Translate(new Vector3(5, 0, 0)));

        // blue mesh
        block.SetColor("_Color", Color.blue);
        Graphics.RenderMesh(rp, mesh, 0, Matrix4x4.Translate(new Vector3(-5, 0, 0)));
    }
}

其他资源：SetFloat、SetVector、SetMatrix、SetTexture。