creator2.4.4 有办法， 直接写一段代码就能截图吗？

[111650 (店小二)]

https://docs.cocos.com/creator/manual/zh/render/camera.html#截图

按官网的文档， 执行到

// 渲染一次摄像机，即更新一次内容到 RenderTexture 中
camera.render();

会报错
Cannot read property ‘_assembler’ of null

[498982591 (少年搬砖)]

我之前分享截图到微信用这个，你看看行不行。
var offsetTop = 100;
var offsetX = 40
var canvas = cc.game.canvas;
var width = cc.winSize.width;
var height = cc.winSize.height;
canvas.toTempFilePath({
x: offsetX,
y: offsetTop,
width: width-offsetX,
height: height-offsetTop,
destWidth: width-offsetX,
destHeight: height-offsetTop,
success (res) {
//.可以保存该截屏图片
param.imageUrl = res.tempFilePath;
wx.shareAppMessage(param);

        }
    })