(0,0) at top left mode for 2D graphics

[anatoly techtonik]

I've noticed that pyglet uses bottom left corner as (0,0) origin. This creates problems with code ported from pygame, processing and other applications from 2D graphics world where things are traditionally drawn from top to bottom.

Is it possible to define a pyglet mode, where Y axes starts from the top?

[Anonymouse]

It is possible to make your own on_resize function that uses the top-right corner as the origin - it's simply a matter of OpenGL projection matrix.

You'll want something like this...
@window.event

def on_resize(width, height):

  glViewport(0, 0, width, height)

  glMatrixMode(GL_PROJECTION)

  glLoadIdentity()

  glOrtho(0, width, height, 0, 0.1, 1000)

Not tested but I think it should be right.

On 7 December 2012 15:03, anatoly techtonik <tech...@gmail.com> wrote:

I've noticed that pyglet uses bottom left corner as (0,0) origin. This creates problems with code ported from pygame, processing and other applications from 2D graphics world where things are traditionally drawn from top to bottom.

Is it possible to define a pyglet mode, where Y axes starts from the top?

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