I want draw line like spray gun effect.

[啊源股]

hi ,

   I want draw line like spray gun effect. please see the picture.

   I have two point, p1 and p2,  if I using API drawLine, it will connect as a straight  line, now I want using other API to connect two line as spray gun effect.

Best Regards!

[Shawn Riordan]

If you came up with an image that contained a noise pattern, like the one you are showing, then you could stroke a wide line with that pattern.

[啊源股]

hi Shawn,

Could you please provide me a more specific guide?  thank you very much. I am not good at english communication, give me a teach link will be much better.  thank you.

在 2019年1月8日星期二 UTC+8下午10:37:43，Shawn Riordan写道：

[Hal Canary]

https://fiddle.skia.org/c/4897708b212701acfadb3d76c0ececad

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[sha...@infograph.com]

Something like this

https://fiddle.skia.org/c/5b0a6af413f6873b7d81725250d92bee

except don't use such a small noise image.  Use one that is 128x128 or so. Like this:

http://i.chattypics.com/files/noise_v3rujyo59g.png

That way the pattern won't repeat as frequently.

Also, I set the scale to 3.0 so that you could see the pixels more clearly.  Real world case would use 1.0.

[sha...@infograph.com]

A better noise image:

[Shawn Riordan]

https://fiddle.skia.org/c/58a66f221af0f33fe9d5500865eb8c2e

Someone make me stop...

I have other things to work on.

But I keep thinking about this...

Help!

On Monday, January 7, 2019 at 11:55:43 PM UTC-7, 啊源股 wrote:

[Florin Malita]

On Sat, Jan 12, 2019 at 2:07 AM Shawn Riordan <craste...@gmail.com> wrote:

https://fiddle.skia.org/c/58a66f221af0f33fe9d5500865eb8c2e

Someone make me stop...

You're asking the wrong crowd -- this is awesome! :)

 

I have other things to work on.

But I keep thinking about this...

Help!

On Monday, January 7, 2019 at 11:55:43 PM UTC-7, 啊源股 wrote:

hi ,

   I want draw line like spray gun effect. please see the picture.

   I have two point, p1 and p2,  if I using API drawLine, it will connect as a straight  line, now I want using other API to connect two line as spray gun effect.

Best Regards!

--

[Hal Canary]

Your makeNoiseMask() function could be even simpler:
    https://fiddle.skia.org/c/ec81078790989b476b8a07e4be55d961

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