Pixel level access

dnhkng

Is there support for pixel-access read/writes on the roadmap?

gorkem

Yes, due 2012.2.4: http://bugs.giderosmobile.com/issues/98

Normally each version has ¨1 month of development period. I can't promise but according to plans, if everything goes right, this feature will be there in 2-3 months.

OZApps

WOW!!! That will be the quickest turn around. Other frameworks have been avoiding this one forover a year now.

no_sheet

This is absolutely awesome, looking forward to see the implementation. Will it be implemented through a plugin? I am a bit worry of having to loop through pixels in Lua.
By the way, is it possible to pass bitmap data to/from a plugin on a stack?
That would be the awesome, as I can imagine that in many scenarios I will be needing to write plugins to manipulate bitmaps.
Thanks for heads up!

gorkem

Since it doesn't incorporate an additional API/SDK or 3rd party library, it won't be a plugin but a part of core SDK.

Have you seen our plugin page on Wiki? http://giderosmobile.com/DevCenter/index.php/Gideros_plugins (link available from the main page).

avo

I understand what this allows you to do just from the names, but since I have never made games before could someone list a couple popular uses or new things we will be able to do with this?

I know it's important so I want to be on the same page as everyone else, much appreciated

no_sheet

@avo there are two main types of use that pop to my head immediately. first is related to possibility to change the bitmaps on fly to achieve particular effects dynamically (ie. user can choose the color of avatar's shirt, and there is no need to create separate spritesheets for different colors, just one sheet and color of the pixels/shirt is changed by code).
Another one widely used is using images to store data, most typically to store height maps in 3D games (ie. distortion of terrain where white pixels mark the highest area of terrain and black the lowest), although it's also preferred method by many to store data about tile maps etc...

Michal

@avo reading the value of a pixel helps you to implement a collision detection for some cases (like in Qix game). You can also process a user generated image (slicing, changing colors, distorting, etc).

avo

thank you both for the insight

Caroline

I use pixel level access in my non-Gideros app to detect touching transparent png shapes. If the pixel is 0.0 alpha, it does not respond to touch.

phongtt

I'd like to play with pixel too. There would be many interesting stuff

phongtt

Any chance for it to be moved up to 2012.2.3? :-/