RBGL Open Source Releases

RBGL Version 1.6.2

Sat 08/11/2008 13:57:10

A simple interface for drawing using OpenGL that works on Mac OS and Windows using pure REALbasic code without any plugins. Includes easy-to-use OpenGL Canvas and Graphics classes that exactly replicate the built-in REALbasic objects, making it easy to port existing projects.

Links: About | Download | SVN

Release Notes:

[fix] Fixed a glitch when drawing images with ScaleToPowerOfTwo setting

RBGL Version 1.6.1

Sat 08/11/2008 08:59:16

Links: About | Download | SVN

Release Notes:

[fix] Fixed an issue when drawing non-cached images.
[fix] Fixed a bug in the caching mechanism that caused the cache limit to be ignored unless set to zero.
[fix] Fixed a rendering glitch when generating textures from 16-bit images.

RBGL Version 1.6

Fri 07/11/2008 12:44:14

Links: About | Download | SVN

Release Notes:

[new] Added a new constructor to the RBGLContext class for creating offscreen drawing contexts. Currently this only works correctly on Mac OS (beta feature).
[new] The RBGLContext.IsExtensionSupported method now also checks for WGL extensions (Windows only).
[fix] RBGLPictures no longer have a white halo when the source image has the Transparent property set and has dimensions that are not a power of two.
[fix] RBGL methods no longer crash when called from within a thread.
[fix] RBGLCanvas.Visible property is now respected.
[fix] RBGLContextOptions.DepthBufferBits property now works correctly on Mac OS.
[chg] RBGLContextOptions.DepthBufferBits now defaults to zero as the depth buffer is not used by any of the RBGL classes or methods. You can override this in the Init method of RBGLCanvas if you wish to use the depth buffer.
[imp] RBGLContext now uses AGL_SWAP_INTERVAL on Mac OS to sync with the display refresh and eliminate tearing and flicker.
[chg] RBGLPicture objects no longer stretch the source image dimensions to a power-of-two by default - the image is padded instead. This eliminates the fuzziness caused by scaling.
[new] RBGLPicture constructors now take an optional RBGLPictureOptions parameter that allows you to specify features such as wrapping mode and mip-mapping.
[chg] Removed the MipMap parameter from the RBGLPicture constructor - use the Options parameter instead.
[fix] Fixed bug in RBGLPicture constructor that would assume white pixels should be treated as transparent if the image format was set to RGBA.
[opt] RBGLPicture constructor now checks if image contains any white pixels and only uses RGBA format by default if it does, even if the Picture.Transparent property is set on the source image. This improves performance for opaque images, particularly when used with the RBGL3D library.

RBGL Version 1.5

Thu 28/08/2008 19:50:22

Links: About | Download | SVN

Release Notes:

[new] Added orientation argument to DrawPicture method. This allows images to be drawn rotated to an arbitrary angle.
[new] Added GetPicture method to RBGLPicture that converts it to a REALbasic Picture.
[new] Added GetPicture and GetRBGLPicture methods to RBGLGraphics and RBGLCanvas that can be used for extracting the rendered image or a subrectangle of it.
[new] Added StretchBackdrop property to RBGLCanvas, which stretches the backdrop image to fill the Canvas area.
[fix] Fixed bug in DrawPicture method when drawing a stretched picture.
[chg] Simplified RBGLCanvas interface by removing BackdropGL property.
[new] Added CachePictures and CacheStrings properties to the RBGLGraphics class. Use these to temporarily disable cachine when drawing pictures or strings that change frequently and will not benefit from caching.
[doc] Corrected references to RBGLTexture2D in the documentation.

RBGL Version 1.4.1

Thu 15/08/2008 13:15:35

Links: About | Download | SVN

Release Notes:

[chg] Changed scope of AbstractGraphics and GraphicsWrapper to Global instead of Public.

RBGL Version 1.4

Thu 14/08/2008 20:24:11

Links: About | Download | SVN

Release Notes:

[fix] Fixed an issue with masks being missaligned for pictures that used the Transparent property on Mac OS.
[fix] Fixed an issue with masks being removed from the source image when creating an RBGLPicture object (thanks go to David Birns for spotting it).
[fix] Fixed an issue with the image Mask property being ignored when creating an RBGLPicture if the Transparent property was set.
[chg] RBGLGraphics no longer inherits from the standard REALbasic Graphics class. This was the cause of a number of crashes that occured when the REALbasic compiler attempted to call the overridden Graphics methods instead of the ones in RBGLGraphics (thanks go to Eric Pousse for drawing my attention to this issue).
[new] RBGLGraphics.DrawPolygon/FillPolygon now accept an array of Doubles as a parameter as well as Integers or Singles.

RBGL Version 1.3.1

Mon 28/07/2008 21:10:21

Links: About | Download | SVN

Release Notes:

[fix] The ClearRect method and the TextAscent, TextHeight and TextSize properties longer crash when called. This was caused by RB attempting to call the original graphics methods due to differences in the method signature.

RBGL Version 1.3

Fri 11/07/2008 15:17:03

Links: About | Download | SVN

Release Notes:

[chg] Renamed RBGLTexture2D to RBGLPicture to better reflect its functionality
[opt] RBGLCanvas now has a caching feature which dramatically improves performance when drawing the same string or Picture multiple times. This feature may cause excessive memory consumption if not used correctly - check the instructions for more info.
[fix] RBGLPicture can now handle images without a graphics property, such as those added to a project's resources at design time.
[fix] RBGLPicture can now handle images with a bit depth less than 32 (they are automatically copied into a 32-bit image before processing).
[new] RBGLPicture now has a TilePicture method, allowing you to efficiently tile an image over a larger area.
[fix] Fixed a bug in RBGLPicture that meant all textures were created as RGBA even if they had no mask property.
[new] RBGLPicture now takes the Transparent (white = transparent) setting of a source picture into account and will generate a mask automatically.
[new] RBGLContext now has an Enable method for enabling or disabling certain OpenGL features such as depth testing.
[new] RBGLContext now has a ClearColor method, allowing you to specify the background colour independently of the containing Window.
[imp] Switching between contexts and canvases is now handled more cleanly. It should no longer be neccessary to call the Bind method manually.

RBGL Version 1.1

Mon 16/06/2008 19:41:01

Links: About | Download | SVN

Release Notes:

[new] Added RBGLGraphics class
[new] Added support for textures with the RBGLTexture2D class
[new] Added support for drawing text with the RBGLStringTexture class
[chg] Now using XML format for version control

RBGL Version 1.2

Sat 05/06/2008 16:41:01

Links: About | Download | SVN

Release Notes:

[chg] RBGLGraphics is now a subclass of Graphics, which allows you to write dual-mode drawing code that can be passed either an RBGLGraphics or an ordinary Graphics class.
[opt] RBGLTexture2D now uses low-level coregraphics functions on Mac OS to extract the pixel data from a REALbasic Picture.
[new] Now supports multisampling (anti-aliasing) on Mac OS (wasn't able to get it working on Windows yet, despite some effort).
[fix] Fixed some bugs in the RBGLGraphics polygon drawing methods.
[fix] Fixed string drawing alignment bug.
[opt] Added optimisations for drawing when penwidth and height is set to 1 pixel.
[opt] Added a Blit method to RBGLTexture2D that may be used for efficiently drawing an image that will only be used once, rather than having to create and destroy a texture in video memory.
[new] Added an optional Blend parameter to the RBGLGraphics picture and string drawing functions that allows you to control whether the image is blended with the current Forecolor.
[new] Added Upscaling and Downscaling mode options to RBGLTexture2D, and modified default upscaling mode to GL_NEAREST, for sharper images.
[chg] RBGLTexture Width and Height now report size of original image. Use ActualWidth and ActualHeight for scaled (power of two) size.

RBGL Version 1.0

Tue 27/05/2008 01:08:34

Links: About | Download | SVN

Release Notes:

[new] Initial release.