A new update of GeeXLab is available. GeeXLab 0.2.9 improves the support of AntTweakBar (bugfix in rendering and new Lua functions) and adds the support of LuaGL. LuaGL is a library that provides access to all OpenGL (up to version 1.3) functionalities from Lua. I hope LuaGL developers will add the support of OpenGL 2 shortly in order to have access to GLSL shaders. LuaGL seems an active project (last update: November 12 2010) that’s why I added it in GeeXLab.
I added a code sample (in the LuaGL/ folder of the code samples pack) that shows the use of LuaGL and new AntTweakBar functions:
GeeXLab, LuaGL and AntTweakBar
Here is the code snippet that draws the triangle:
if (wireframe == 1) then gl.PolygonMode('FRONT_AND_BACK', 'LINE') else gl.PolygonMode('FRONT_AND_BACK', 'FILL') end gl.Disable('CULL_FACE') gl.Begin('TRIANGLES') gl.Color(1, 0, 0) gl.Vertex(-10, -10, 0.0) gl.Color(c1.r, c1.g, c1.b) gl.Vertex(v1.x, v1.y, v1.z) gl.Color(0, 0, 1) gl.Vertex(10, -10, 0.0) gl.End()
wireframe, v1 and c1 variables can be modified with the tweak bar.
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Two versions are packed in the installer: GeeXLab_Lua and GeeXLab_Python_Lua. The version of GeeXLab with Python support requires the Python 2.6.6 32-bit installer (or Python 2.7 32-bit installer or Python 3.2 32-bit) even on 64-bit OSes..
The code samples pack is available HERE.
All GeeXLab news including tutorials and demos: GeeXLab News.
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What is GeeXLab?
GeeXLab is a tool (we can call it a demotool) for quick coding and prototyping of real time 3D scenes. GeeXLab can be seen as a real time 3D scene browser (like Firefox for html scripts). You code your 3D scene in one or several source code files, you load the main scene file in GeeXLab and GeeXLab displays the scene. That’s all. GeeXLab language uses a simple mixture of XML, Lua and/or Python and GLSL. All rendering is done with the OpenGL API. For an overview of GeeXLab, just read this article.
GeeXLab 0.2.8 changelog
- New: added support of LuaGL
- New: added TwBarAddCaption(), TwBarAddSeparator(), TwBarAddVarRW_Boolean() to HYP_Utils lib (Lua)
- New: added HYP_Mesh.Renormalize()
- Bugfix: in AntTweakBar rendering