[Bf-python] drawing callback in clip editor, problems with 'view_to_region'

[Dalai Felinto]

Hi,

I'm trying to write an addon where I'll need to draw a quad connecting four
markers.
For that I need to be able to map the markers coordinates to 'screenspace'
glVertex2f coordinates.

I can't match the drawn shape with the image though.
This is a test drawing a quad that was suppose to match the image 1:1

http://www.pasteall.org/pic/show.php?id=60483
Not only there is an 'offset', but the offset changes if I pan around the
region.

Here is a sample script with the bare minimum to illustrate the problem:
http://www.pasteall.org/46273/python
(draw_rectangle is where the transformation is happening).

If anyone has any suggestion it would be much appreciated.
Thanks,
Dalai




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