Re: [pygame] Re: Accessing opengl surface as a numpy array

[Nicolas <nblouveton@xxxxxxxxx>]

In the case of neuroscience experiments, trough psychopy for example,
graphics are rendered "on line", so there is no data to be loaded as a
texture.

Additionally the down-sampling process  is realised by pseudo-retina
cells, which are implemented on the software side and should be
independent of the video stream source.

Thanks,
Nicolas

2010/11/15 Greg Ewing <greg.ewing@xxxxxxxxxxxxxxxx>:
> Nicolas wrote:
>
>> I understood what you explain to me about GPU and CPU sides, but I do
>> not have the choice about the input type and it is not possible to
>> move my processes onto the GPU side.
>
> Have you considered just moving the downsampling step onto
> the GPU? You could do it by loading the image as a texture
> and then rendering a small quad from it using GL_NEAREST
> sampling.
>
> --
> Greg
>