Is there a way to use the new RenderTarget to create a screenshot?

Jeff_Kanazi · July 2013

The new API works nice and helps for a lot of things but is there a way to somehow save the newly create texture so it can be used in a subsequent execution of the app? Saving the texture to some standard file format with predefined size (meaning ability to scale) would be ideal but I guess anything would do.

All that I need is already there except that I cannot store the result for later use. What am I missing?

Thanks!

ar2rsawseen · July 2013

@Jeff_Kanazi yes unfortunately we thought of that after the release and will add it to the next one.
For now maybe there is a hack which I can't think of right now, but I doubt it.

keszegh · July 2013

that saving feature would be indeed quite useful, do you have any guess when will be the next gideros version? (there even could be a small update adding only this, in case the next real version would come only layer)

petec · August 2013

I would also love to be able to save screenshots. Is this likely to be possible sometime?

techdojo · August 2013

As the render target is a texture can't you just copy the texture to a lua string, serialise it to JSON and save it out - it'd probably be a raw dump as opposed to a jpg or a png.

Then reverse the process to restore the image?

ar2rsawseen · August 2013

@techdojo well that was the idea, but decided that without actually saving it as .png file there was really no point of making such method to retrieve plain bytes.
But as saving as png is a little more complicated, would probably require 3rd party libs, we decided not to include it in bug fix version, so not to introduce any more bugs.

There are already too many bug fix versions, which only postpone us from the alpha release of OpenGL2 version.

Pyros_Studio · August 2013

It would be really useful to be able to load and save textures from/to Lua strings, in this way it's possible to create textures procedurally on real-time, load/save different graphics file formats, make encryptions, etc, etc.
And of course, the option to save the textures as PNGs to make screenshots is also really important.

kussakov · October 2013

I did not see this thread before. I was posting in my own thread about the same subject.
I thought I saw somewhere that Gideros is already using libpng internally and libpng could convert and save stuff as png. I guess I was wrong...
But either way - for some of us exporting plain bytes as a string will be very helpful - we can have a simple plugin or send the data to a server to be converted...

Xman · July 2015

is this feature still on the roadmap?

pie · July 2015

I think that you can use media plugin
https://github.com/gideros/giderosplugins/tree/master/Media

totebo · July 2015

Yeah, I use Media to save screenshots down to PNGs in my games.

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