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lines at the seams because interpolation didnt wrap across the image.
Added bilinear_interpolation_color_wrap to be used instead of bilinear_interpolation_color for painting.
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not fixed but the problem is now less bad when projection painting, bilinear interpolation was rounding down.
- added gameOb.attrDict to get the internal gameObject dict.
- mesh.getVertex wasnt setting an exception.
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also changed 3 if's into a switch statement for selecting the interpolation.
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void bicubic_interpolation(struct ImBuf *in, struct ImBuf *out, float u, float v, int xout, int yout);
void neareast_interpolation(struct ImBuf *in, struct ImBuf *out, float u, float v, int xout, int yout);
void bilinear_interpolation(struct ImBuf *in, struct ImBuf *out, float u, float v, int xout, int yout);
Added...
void bicubic_interpolation_color(struct ImBuf *in, unsigned char *col, float *col_float, float u, float v);
void neareast_interpolation_color(struct ImBuf *in, unsigned char *col, float *col_float, float u, float v);
void bilinear_interpolation_color(struct ImBuf *in, unsigned char *col, float *col_float, float u, float v);
This is needed so for projection painting but generally useful if you want to get the interpolated color of a pixel in an image without having a destination imbuf.
While editing these I noticed the functons are a bit dodgy, they assume the input ImBuf has matching float/chr buffer to the output.
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instead,
Tested overall speedup is about 5x when scaling 4096x4096 -> 4000x4000 in the sequencer.
There were some artifacts in the resulting image but double checked and the old code gives the same problems.
Added back old code with #if 0's since its a bit more readable.
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to - (was calling 32 pow()'s per pixel, now only 8 - approx 3-4x speedup on my system).
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blocks that were previously missed; and b) greatly increase my
ohloh stats!
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This fixes:
[#7989] Sequence editor preview and anim render output broken on Linux PPC
and also optimizes RGBA -> ABGR conversion function a little bit.
(Fixing also a crash, if there is no ibuf->rect available...)
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uninitialised vars.
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Bugfix for transform effect by Damiles.
Fixes crash with float buffers. (Don't try to render into output buffers,
that do not exist...)
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I left the link that points to documentation on the web so not really needed
anyway.
Kent
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http://projects.blender.org/tracker/index.php?func=detail&aid=6929&group_id=9&atid=127
Its a subset of patch [#6766] Transform Sequencer effect
It adds 3 image functions for different types of interpolation.
For people that like pictures:
http://wiki.blender.org/index.php/User:Damiles#Interpolations_Algorithms
Patch provided by David Millán Escrivá (damiles)
Kent
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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... :/
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I just fixed indentation (replaced spaces with tabs where needed) and removed
#include config.h stuff from the above files.
Kent
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#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
Just need to finish cpp files now :)
Kent
--
mein@cs.umn.edu
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