Re: [Factor-talk] OpenGL gadget question

Thank you very much, Jon! I now have a working gadget, and a link to the OpenGL tutorial which I'm going to study in the background. Next question, if you don't mind. My gadget now displays some colored rectangles, and I need to add numbers to the output. How do I do that? To be very

Re: [Factor-talk] OpenGL gadget question

On Mon, Apr 25, 2016 at 1:46 PM, Alexander Ilin wrote: > 24.04.2016, 23:17, "Jon Harper" : >> Also, the opengl matrix stacks were part of the "fixed function >> pipeline". It was totally removed in openGL 4 and replaced by the >> programmable shaders.

Re: [Factor-talk] OpenGL gadget question

Hello, Jon! >> Also, if you don't use openGL functions that modify the current matrix >> (see >> http://docs.factorcode.org/content/article-opengl-modeling-transformations.html), >> the do-matrix word doesn't do anything for you. OK, that's the main point for me, thank you! 24.04.2016,

Re: [Factor-talk] OpenGL gadget question

Also, the opengl matrix stacks were part of the "fixed function pipeline". It was totally removed in openGL 4 and replaced by the programmable shaders. You can read about it on Joe's blog: http://duriansoftware.com/joe/An-intro-to-modern-OpenGL.-Table-of-Contents.html Jon On Sun, Apr 24, 2016

Re: [Factor-talk] OpenGL gadget question

Hi, do-matrix is a very thin wrapper around glPushMatrix and glPopMatrix (https://www.opengl.org/sdk/docs/man2/xhtml/glPushMatrix.xml), so for a theoretical explanation, I suggest you read about linear algebra (how a matrix can represent a linear transformation such as a translation, a rotation, a

Re: [Factor-talk] OpenGL gadget question

Thanks fore the reply! Could someone explain to me in a few words what is do-matrix used for? I'm not sure I need it, I just copied the code from the tetris example. 24.04.2016, 19:51, "John Benediktsson" : > You can log to the terminal/console standard output using: > >    

Re: [Factor-talk] OpenGL gadget question

You can log to the terminal/console standard output using: [ "foo" . ] with-global The problem with your listener output issue is probably pref-dim is called before the new window opens and draw-gadget is called after and the output-stream (initially set to the listener) is rebound to