[Gridflow-dev] GridFlow/GL !
matju at artengine.ca
Sun Aug 8 12:53:06 EDT 2010
GridFlow 9.11 has [gf/gl], a new interface to OpenGL, which aims to be a
replacement for that undocumented portion of GEM which contains
[GEMglBegin], [GEMglEnd], [GEMglVertex3f], etc.
The main advantages are :
GL is exposed as a long list of methods in one class, allowing many
messagebox shortcuts that you can't do in GEMgl.
all constant names such as GL_QUADS and GL_FILL are available as symbols
in addition to the GLenum numbers : thus GL_QUADS is available as both
symbol "quads" and float 7, while GL_FILL is available as both symbol
"fill" and float 6914. You don't need to convert the names to numbers
using a separate object, you can use them directly in messages.
Those names and numbers are typechecked : they can only be used where GL
allows them. This makes it easier to catch mistakes. (GEMgl would
either say something like "Invalid operation" without enough context, or
it would just crash.)
Then also, it does not need a GemState in order to work. You can connect
a [gemhead] to a messagebox saying "begin lines, vertex 0 0 0, vertex 1
1 0, end" going to [gf/gl], and that will be enough for [gf/gl]. it
doesn't need weird tricks involving [repeat]. You never really need
[repeat] with [gf/gl].
And finally, the source code is many times smaller (currently
thirty-nine times smaller, but I expect that eventually it may grow to
be only twenty times smaller...)
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| Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801
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