How to set the rotation angle for sprite with a bone at current animation frame? I tried with the code but didn't work. Most of the sprites are all right, but some of them are not the same rotation angle with the bone.

spRegionAttachment* attachment = (spRegionAttachment*)slot->attachment;
spAtlasRegion *region = (spAtlasRegion *)attachment->rendererObject;
CGRect rect = CGRectZero;
if(region->rotate) {
     rect = CGRectMake(region->x * 0.5, region->y * 0.5, region->height * 0.5, region->width * 0.5);
}
else {
     rect = CGRectMake(region->x * 0.5, region->y * 0.5, region->width * 0.5, region->height * 0.5);
}
CCSprite *sprite = [CCSprite spriteWithTexture:batchNode.texture rect:rect];
sprite.rotation = ((region->rotate ? 90 : 0) - attachment->rotation - slot->bone->worldRotation);

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The right is the spine skeleton, which is right.
The left are the sprites I created from the skeleton, but the rotation angle of some bones are not right, such as the right arm, the right leg. I don't know why.

Thanks!

Nate a écrit

The rotation looks correct, I expect the translation is off. Are you positioning the CCSprite using both slot->bone->worldX/Y and attachment->x/y?

Yes, you are right, the rotation is right but the position is wrong. Here is my code for positioning CCSprite:

float minX = FLT_MAX, minY = FLT_MAX, maxX = FLT_MIN, maxY = FLT_MIN;
float *vertices = (float*)malloc(sizeof(float) * 10);
spRegionAttachment_computeWorldVertices(attachment,slot->bone,vertices);
for (int ii = 0; ii < 8; ii += 2) {
    float x = vertices[ii], y = vertices[ii + 1];
    minX = min(minX, x);
    minY = min(minY, y);
    maxX = max(maxX, x);
    maxY = max(maxY, y);
}
CGPoint point = ccp((maxX + minX) *0.5, (maxY + minY) *0.5);
free(vertices);

point = [_skeleton convertToWorldSpace:point];
point = [batchNode convertToNodeSpace:point];
sprite.position = point;

Can you show me some details about positioning of the CCSprite using both slot->bone->worldX/Y and attachment->x/y? I don't know how, thank you.

The rotation looks correct on above, but the rotation angle of some bones are not right when I test another one.

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The right is the spine skeleton, which is right.
The left are the sprites I created from the skeleton, the rotation angle of some bones are still not right, such as the neck, the right hand. I don't know why.

Thanks!

I tried -90, the bones of dragon are all right, but some bones of King of Skeleton are wrong. I exchanged the rotated region's scaleX and scaleY, and I fixed it.