Corona - Feature Requests/Feedback

Welcome to the Corona SDK feature request/feedback tool.

Tell us what features you would like to see in Corona by entering new ones and/or voting on existing entries.

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What features should we add to Corona?

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  1. Anti-aliasing

    Looking at the guides the anitaliasing key in the config.lua files has been deprecated. Part of the reason for this is that AA isn't needed on high dpi screens, but it does still make a huge difference on pre-retina iPad displays. Could this be formally supported again?

    299 votes
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      12 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
    • Global pause or slowdown feature for physics, timers, and transitions

      Implementing a pause feature in a game is a lot harder than people realize, especially with so many things going off in a game at the same time. Being able to hook that into a "time scale" property than make the game play in slow motion or even stop completely would save a developer a lot of work trying to pause every object and its effects individually.

      286 votes
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        3 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
      • Manipulate text size, style, font, and color like HTML

        Allow the embedding of html (or something similar/easier) to manipulate text including: size, style, font, and color.

        Specifically, color would be nice. Example:

        display.newText("You have chosen <font color=(1,0,0)>red</font>.")

        109 votes
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          planned  ·  5 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
        • Loading images at 16bit/8bit to reduce Texture Memory on big projects!

          There are a lot of tools that can help Corona devs reduce images size with no quality loss (TexturePacker, TinyPng...), the problem is that this advantage is useless in regards to TextureMemory!

          Corona automatically converts every image loaded to 32bit, thus limiting the ability to create very rich animated scenes!

          You should really want to include a feature that allow us to choose between 32/16/8 bit when loading images! This will help Corona devs to think bigger and produce even better apps!

          (plus: some other app sdks allready provide this features! Fill the gap Corona staff!!!)

          82 votes
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            2 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
          • Isometric engine

            It's currently very difficult to quickly and reliably build an isometric grid. And given its popularity in games these days, it would be fantastic if Corona could support this. Or at least make it easier to do.

            49 votes
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              2 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
            • Provide an API for making 9 patch / slice easier

              This is already possible for a developer building their own solution in Lua, but could be made easier via specific APIs

              38 votes
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                0 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
              • Draw smooth curves efficiently

                It is impossible to make a paint app just like drawing carl, that user can draw smooth curves efficiently,

                33 votes
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                  0 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                • Copycat object

                  I would like the ability to, given a display object, make a duplicate of it, say by

                  local copy = display.newCopycat(object)

                  that would create another instance of the object, synced to its current display properties. After that, the objects would part ways as their properties change, though the copy can be re-synced, say via

                  copy:sync()

                  (The presence of this method could be tested to see if an object is a duplicate, or another property, say "prototype", that would give back the original object.)

                  Basically, the motivation is that you can remove some of the "leaky abstraction" from certain effects and…

                  28 votes
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                    0 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                  • Save display object images at any resolution

                    I have a photo editing app that I made with corona but Corona's ability to save images is pretty limited right now. display.save and display.snapshot produce unpredictable results and is limited by the frame buffer size of openGL which I hear is typically 2048x2048 (see http://forums.coronalabs.com/topic/50299-photo-editing-and-corona-how-can-i-crop-a-photo-at-full-resolution/)

                    I would like to have a feature from corona that will save any display object (or display group) out to disk at ANY resolution and that would work consistently across all device hardware resolutions.

                    Below is a link to a way that this could be done:
                    http://paulbourke.net/miscellaneous/windowdump/

                    Basically you load in sections of…

                    24 votes
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                      0 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                    • Custom display objects

                      A number of possibilities would open up if we could invoke our own logic when an object's turn comes around for rendering.

                      This might involve deriving from some "custom object prototype" class, where you supply a few methods, say:

                      Object:Create() -- instantiate one of the objects, possibly redundant
                      Object:Destroy() -- clean up any resources
                      Object:Draw() -- perform custom rendering
                      Object:Resume() -- recover from device loss or app suspend...
                      Object:Suspend() -- ...handle the loss / suspend itself

                      You then create your object and stuff it in a group as usual.

                      I'm probably overlooking a detail or two, but the above ought…

                      23 votes
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                        3 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                      • Anchors support for masks.

                        Display objects have properties like .maskX, .maskY, .maskScaleX, .maskScaleY and .maskRotation.

                        And currently masks are center positioned. However sometimes we really need support for anchors as well: .maskAnchorX, .maskAnchorY.

                        Moreover it would be much more elegant if mask properties were a subtable of a display object.

                        image.mask.x = 0
                        image.mask.anchorX = 1
                        image.mask.scaleX or xScale = 2

                        See my pro tip on dynamic masks where it would be useful
                        http://spiralcodestudio.com/corona-sdk-pro-tip-of-the-day-35/

                        23 votes
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                          1 comment  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                        • Gradients

                          Upgraded gradients - radial, angular, more than two color support, and circle and rounded rectangle display object support.

                          22 votes
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                            1 comment  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                          • Configure texture format

                            See: https://forums.coronalabs.com/topic/62280-changing-coronas-texture-format

                            It would be great if we could configure the texture format Corona uses internally. This would enable games which do not require true color graphics to effectively half their texture memory footprint when using RGBA4444 or RGB565 texture formats instead of RGBA8888 or RGB888.

                            Maybe it would be sufficient to add a trueColor flag to config.lua or a 16/32 bits toggle.

                            22 votes
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                              1 comment  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                            • Augmented Reality

                              I want to use camera to recognise images and overlay sprites or objects as replacements of the recognised image. I'm using Vuforia with Unity because I can do that on Corona SDK http://www.qualcomm.com/solutions/augmented-reality

                              22 votes
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                                1 comment  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                              • Support for next/previous/done bar for native keyboards

                                I would like to request that the next/prev/done keyboard bar (that sits above the keyboard (optionally) on native apps be implemented into Corona.

                                This is such a simple thing, but incredibly useful for handling navigation around native text fields. It is especially useful for the numeric keyboard which has no "done" button on iOS by design. This is where the bar comes in.

                                This is a screenshot of the bar in question: https://img.youtube.com/vi/pL1MSyD59JU/0.jpg

                                This is an essential thing for business app development, so Corona users, if you want this too, please vote this up!

                                21 votes
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                                  2 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                                • onUpdate

                                  Support for an onUpdate listener for transitions, executed after the object is updated each frame.

                                  20 votes
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                                    3 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Set stroke alignment on vector object

                                    At the moment all strokes on vector objects are center aligned.
                                    This means that if you set a strokeWidth of 6 to a rect, the rect will grow by 3 pixels in every direction.

                                    I propose to add a new attribute where you can align the stroke (Inner, Outer or Center of the object) like in Adobe Illustrator.

                                    20 votes
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                                      1 comment  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Support display groups in physics simulation

                                      Currently if you stick a physics object in a display group and move that group you wind up severing the link between the physics and the rendering. It'd be great if Corona could support the full range of transformations enabled by groups in the physics engine.

                                      19 votes
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                                        3 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Support for GIFs

                                        I'd like to be able to display GIFs (not using a web view because i need to be able to overlay call-to-action text on top). Basically would like to display a bunch of gifs, and give the user the ability to do things like forward, copy, etc... It seems to be supported natively by iOS now where it wasn't before

                                        15 votes
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                                          0 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Allow CompositePaint to be used with animated sprites

                                          Add the functionaity to Graphics 2.0 to allow CompositePaint multitexturing to work with animated sprites created with display.newSprite. Right now you can only multitexture two images together, which for most games limits what can truly be done with multitexturing. Large percentage of games will use sprites and are limited to filters only.

                                          15 votes
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                                            0 comments  ·  Graphics  ·  Flag idea as inappropriate…  ·  Admin →
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