Unity 动态修改材质贴图和发光

        UnityWebRequest uwr = UnityWebRequestTexture.GetTexture(fileUrl);
        yield return uwr.SendWebRequest();
        if(uwr.result == UnityWebRequest.Result.Success)
        {
            if (type == "1")
            {
                //直接修改材质
                Texture texture = DownloadHandlerTexture.GetContent(uwr);
                mesh.material.SetTexture("_MainTex", texture);
            }
            else if (type == "4")
            {
                Texture texture = DownloadHandlerTexture.GetContent(uwr);
                int count = mesh.materials.Length;
                if (count > 0)
                {
                    Material target = mesh.materials[count - 1];
                    //修改材质贴图
                    target.mainTexture = texture;
                    //修改自发光贴图
                    target.SetTexture("_EmissionMap", texture);
                }
            }
            
        }
        else
        {
            Debug.LogError(uwr.error);
        }

        uwr.Dispose();

其他属性修改：

//启用自发光效果的代码是 
material.EnableKeyword("_EMISSION")；

//关闭自发光效果的代码是 
material.DisableKeyword("_EMISSION")；

//修改发光颜色
material.DisableKeyword.SetColor("_EmissionColor", new Color(0,1,1));

//修改材质颜色
material.color=Color.red;
//修改材质颜色
material.SetColor("_TintColor",color);