hardcoded unsigned byte type in Texture2D

[David Hoese]

I brought this up on gitter, but thought I could get more information here. In "vispy/gloo/glir.py" Texture2D objects are created with a hard coded UNSIGNED_BYTE type: https://github.com/vispy/vispy/blob/master/vispy/gloo/glir.py#L1104

I am currently able to put in luminance 32-bit floats with an internal format of R32F so I'm wondering if that hardcoded value actually means anything. Could someone shed some light on this? Thanks.

Dave

[Almar Klein]

Yes, this is because OpenGL ES 2.0 only allows bytes.

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[David Hoese]

Ok thanks. Why is it hardcoded? And why doesn't it seem to affect what I
can actually place in the texture (hardcoded to bytes but I'm putting in
32-bit floats)?

On 10/27/2015 6:01 AM, Almar Klein wrote:
> Yes, this is because OpenGL ES 2.0 only allows bytes.
>
>

> *From: *David Hoese
> *Sent: *25 October 2015 02:30
> *To: *vispy-dev
> *Subject: *hardcoded unsigned byte type in Texture2D

>
> I brought this up on gitter, but thought I could get more information
> here. In "vispy/gloo/glir.py" Texture2D objects are created with a hard
> coded UNSIGNED_BYTE type:
> https://github.com/vispy/vispy/blob/master/vispy/gloo/glir.py#L1104
>
> I am currently able to put in luminance 32-bit floats with an internal
> format of R32F so I'm wondering if that hardcoded value actually means
> anything. Could someone shed some light on this? Thanks.
>
> Dave
>
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> You received this message because you are subscribed to the Google
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> To unsubscribe from this group and stop receiving emails from it, send
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[Almar Klein]

Oh sorry. I am mistaken that hardcoded UINT8 is only to set the size of the texture. When uploading the actual datatype is taken into account. Sorry for the confusion.