glBegin() and glEnd() on iOS

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Using Cinder

starkes

glBegin() and glEnd() on iOS

in Using Cinder • 2 years ago

I've been trying to draw some lines on the iPad, but I can't seem to get glBegin and glEnd statements to work.

They work fine in osx projects for me, but not iOS.

Are these not available on iOS?

Replies(5)

notlion

Re: glBegin() and glEnd() on iOS

2 years ago

No, iOS only supports OpenGL ES 1.1 and 2.0. Currently Cinder only supports 1.1. You'll need send all your vertices to the GPU at once with a Vertex Array or a VBO.

jonobr1

Re: glBegin() and glEnd() on iOS

2 years ago

Are there any examples you'd recommend for illustrating how to use Vertex Array and or VBO?

I looked at the VBO example in Cinder and it uses VBO Mesh. Would I still need to go about it like that example if I were just making multiple glBegin and glEnd statements originally?

—
http://jonobr1.com/

jonobr1

Re: glBegin() and glEnd() on iOS

2 years ago

This is a great introduction to VBO's: http://www.creativeapplications.net/tutorials/guide-to-meshes-in-cinder-cinder-tutorials/

—
http://jonobr1.com/

notlion

Re: glBegin() and glEnd() on iOS

2 years ago

Wow awesome tutorial. The songho.ca articles are pretty good for learning the generic GL concepts, too:

http://www.songho.ca/opengl/gl_vertexarray.html

http://www.songho.ca/opengl/gl_vbo.html

Re: glBegin() and glEnd() on iOS

2 years ago

Hi, this may prove useful:

http://forum.libcinder.org/developing-cinder#topic/23286000000663089

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Re: glBegin() and glEnd() on iOS

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