- EXR now saves and reads Zbuffers correctly
- EXR reading didn't set alpha to 1 yet when no alpha buffer was present
- ImageWindow: the "black point" only checked for the r value... now is OK
- ImageWindow: Curves panal has button "reset"
- ImageWindow: hold LMB drag shows rgba and z values. With SHIFT or CTRL it
applies black/white point whilte dragging too
- ImageWindow: saving file copied the entire buffer... removed that. Also
made the header print clear; this save only saves in own file type.
- Curves: zoom and drag now gets clamped by the Clipping value
- Imbuf: duplicate buffer only copied one quarter of to new buffer
- Reading exr images now goes OK. I've unified the code for reading
'half' and 'float' (was nicely possible!). And removed useless copying
of data around.
- Fixed bug in allocating new rects, like for making mipmaps. flag issues.
- filter code accidentally incremented wrong pointer (crash on mipmap too)
- F10 scene buttons now has options "half" and "zbuf" for exr saving.
Note: when no float buffer is available, it always saves as "half",
that's sufficient anyway, since half is 16 bits per channel.
- EXR in imbuf now uses compliant ibuf->ftype flags for denoting exr
extensions such as 'half' and 'compression'.
- Removed ugly blenkernel dependency from exr module
Credits go to Gernot Ziegler, who originally coded EXR support, and to
Austin Benesh for bringing it further. Kent Mein provided a lot of code
for integrating float buffers in Blender imbuf and ImBuf API cleanup,
and provided Make and Scons and static linking.
At this moment; the EXR libraries are a *dependency*, so you cannot get
the Orange branch compiled without having OpenEXR installed. Get the
(precompiled or sources) stuff from www.openexr.com. Current default is
that the headers and lib resides in /user/local/
Several changes/additions/fixes were added:
- EXR code only supported 'half' format (16 bits per channel). I've added
float writing, but for reading it I need tomorrow. :)
- Quite some clumsy copying of data happened in EXR code.
- cleaned up the api calls already a bit, preparing for more advanced
support
- Zbuffers were saved 16 bits, now 32 bits
- automatic adding of .exr extensions went wrong
Imbuf:
- added proper imbuf->flags and imbuf->mall support for float buffers, it
was created for *each* imbuf. :)
- found bugs for float buffers in scaling and flipping. Code there will
need more checks still
- imbuf also needs to be verified to behave properly when no 32 bits
rect exists (for saving for example)
TODO:
- support internal float images for textures, backbuf, AO probes, and
display in Image window
Hope this commit won't screwup syncing with bf-blender... :/
