[Bf-python] Patch: Draw.Image() -- new method.

[joeedh]

Jonathan Merritt wrote:

> joeedh wrote:
>
>> Jonathan Merritt wrote:
>>
>>> Blender.Draw.Image(image, x, y, zoomx=1.0, zoomy=1.0, clipx=0, 
>>> clipy=0, clipw=-1, cliph=-1):
>>>
>>>   Draws a Blender.Image on the screen using raster operations.
>>>
>>>   (image) - Blender.Image to draw.
>>>   (x, y) - Raster coordinates of the lower-left corner of the image 
>>> (can be negative).
>>>   (zoomx, zoomy) - Horizontal and vertical zoom factors.
>>>   (clipx, clipy, clipw, cliph) - Image space clipping rectangle.
>>
>>
>> You beat me to it!  I was just about to play around with that.  Cool.
>
>
>
> Thanks. :-)
>
> Does my method signature cover all the options you would have wanted 
> to implement?  I wanted to have a set of options that would be 
> straightforward for OpenGL raster ops, so:
>    - position
>    - zoom
>    - clipping
> Other sorts of transformations (rotations, shear, color space 
> operations, etc.) I think should be done elsewhere first and would 
> probably be excessive for the final draw method.  What do you think?
>
> Also, people have talked a lot about drawing images by texture-mapping 
> them on to polygons.  I know that texture mapping on my graphics card 
> (an Intel card in a Toshiba A10 laptop) is a bit dodgy, and I wanted 
> to keep the drawing as precise as possible for my camera calibration 
> script.  I chose raster operations for that purpose.  Is that adequate 
> for what you need?
>
> Jonathan Merritt.
>
I have to admit, all I intended to do was to modify the Image module to 
have a getGLBuffer method.  My knowledge of OpenGL doesn't include 
texture-mapping as yet, although as I understand it Image.glBindCode (or 
whatever it was) was supposed to allow this, but unfortunately required 
the image to be active and visible inside the UV image editer window.

joeedh