EXR file textures. PNMImage does not load float data (vs texture().read())

Scripting Issues
1

Hi all!

I am trying to use PNMImage().read() to load an EXR, and then texture().load() to load the PNMImage.

Originally I was using directly texture().read() no problems, and the resulting texture was a very nice float teaxture as contained in the EXR.

The reason why I am switching to do the PNMImage now, is because I am using the setReadSize() which makes super efficient loading of high resolution images.

I tried setting up the parameters of the Texture and of the PNMImage, with no change. I always get a clipped 8 bit texture if I go the PNMImage route.

Am I doing something wrong? Or, maybe should I skip the PNMImage and there is a way to load directly the EXR textures directly from disk at half res?

Thanks so much as always!

Charlie

2

PNMImage is not designed to handle float data. There is a separate PfmFile class that is similar to PNMImage but designed for floating-point data, which can also be loaded into a Texture. There is a resize() method to change the size as necessary.

3

Thanks so much! That made the trick. Is there something like setReadSize in PfmFile?

Charlie

4

Don’t believe so, but you can just resize after the fact.

5

Just trying to make the read from disk faster, as they are 4k and for different monitors, setReadSize make such a difference. Thanks so much!