A fast, easy to use, free, and community supported 2D game engine
Hi
Strange thing...
I'm useing cocos2d 0.8, trying to draw a line useing drawline func.
when i try to scale it up by using glLineWidth(4.0f) the simulator do the job
but testing on iphone... nothing happand.
same on the glEnable(GL_LINE_SMOOTH)
iphone 3.0sdk bug?
I think it's a 'feature' :) you can search this (or the old) forum for some better and tech explanations
'feature'?
can u be a little more specific?
so i know what i'm searching for
thanks.
Sorry, I meant as a bug.
Is GL_LINE_SMOOTH enabled? The iPhone does not support anti-aliased lines. If you query the SMOOTH_LINE_WIDTH_RANGE, it reports (1,1), which is kind of a hint that it doesn't work (ie, line widths are clamped to 1). Smoothed lines (and points) have long been a very inconsistent thing in OpenGL implementations, so the iPhone is not alone in having problems with it.
See http://homepage.mac.com/arekkusu/bugs/invariance/index.html for an example of desktop GL renderers, and also some sample code on how to use Framebuffer Blending + Texturing to create fake smooth lines. Note, by 'fake', I mean 'much better quality than most built-in smoothed-line implementations', and perfectly portable as well (unlike lines themselves).
Your other (easier) option is to use non-smoothed lines.
taken from:
http://discussions.apple.com/thread.jspa?threadID=1611394&tstart=120
Thanks i'll look into that and report back
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