I'm having a weird issue with HTML canvas. For some reason image drawing is being stretched and distorted. I'm drawing a small image onto a 500x500 ...

word天，前端现在都高级成这样了吗？！ 小手轻轻一指，被选中的区域就立马出现了碎片效果，炫酷感一整个扑面而来。 渲染真人还不算，设计游戏更是一把好手，同款射击破碎效果这就上桌。 还有高手，直接将网页设计成鱼眼效果，还是想怎么调就怎么调那种。

Sometimes you want to render a visual on the fly, or even animate it. Perhaps the visual is a complex path where the set of x,y coordinates dictate what to render. Or perhaps the visual is a graph ...