Hi,

As a first investigation step, did you try using `ociodisplay` directly (i.e. as-is):

1. `set OCIO=C:/daten/coding/imgview/imgView/AE_OCIO/config.ocio`
2. `ociodisplay.exe -v c:/daten/testBilder/bake.jpg`   where `-v` displays extra information
3. Select the same color space

The fragment shader code is perfectly fine (MatrixOp + LogOp + Lut3DOp), and it compiles so I can only think of something related to the OpenGL setup and/or Input texture definition.

Regards,
Patrick