Command gesture (for flatten and cutout) now needs to intersect a line in two points and end in a pig tail (loop and intersect itself).
This is easier than the cross three times and self interesect once of before.
This also adds a special Embedding option called "Peel Objects". This option makes the embedding snap consider objects as whole, taking the first and last hit of each of them to calculate the embedding point (instead of peeling with first/second, third/fourth and so on). This option is useful if you have mecanical pieces with lots of details (as single objects) and want to put bones in the middle (think of adding bones to a mecha, for example).
Display the number of joints in the selected template in the sketch panel
When using selected bones as template, turn off Connected if bone has a parent that is not copied.
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.
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.
Calculate new roll based on the angle to the normal of the joint (cross produce of the two bones).
This works best in some cases but not in others, so it's an option for now.
I'll have to see if I can iron the left over kinks, then it can be made the default (with Align to view an added option).
Grease Pencil crashed after duplicating a screen-area, and deleting a layer from the original screen-area. The duplication code was not reassigning some pointers.
Fix the roll mess in transform. Since roll is based on an automatically calculated up axis, transforming bones would mess up bone orientation. This code automatically adjusts the roll value to keep bone orientation as consistant as possible. That works all around in transform for all transformations.
Doesn't work with x-axis mirror though as that doesn't use transform elements (fixing it would be nice for later)
Most interesting is that it works with the mirror tool (obviously), so you don't have to fix all the rolls after mirroring one side of an armature.
It could be made an option if someone presents a good enough point for that, but I can't see why you'd want the previous mess instead.
NB: this also ports a utility fonction from etch-a-ton to set bone roll from an up axis.
