Global rotation of joints

[B@z]

yea, so i have to try switching the axes for every animation? thats around 10-20. no thanks

and i can do that with setRotation. i just dont know how to calculate how much should i rotate on witch axis.

i need something like that

Code: Select all

vector3df curRot = joint->getRotation();
curRot = calculateGlobal(curRot) + vector3df (90, 0, 0);
curRot = calculateLocal(curRot);
joint->setRotation(curRot);

ooorr

Code: Select all

joint->setRotation(joint->getRotation() + calculateLocal(vector3df(90, 0, 0));

calculateLocal should return the relative rotation from the parent joint.
like, if its rotated by 90 on Y axis, then it should return vector3df(0,0,90);

[B@z]

more than half of this topics post is my bumping... but i really need this, please answer me ><

[freetimecoder]

Seems like we have a similar problem:
http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=38040

However, I have no solution either

greetings

[B@z]

i think this helps u:
http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=32709

[Scarabol]

Hi B@z,

what about getRotation()? or getAbsoluteTransformation().getRotation()?

U can use this to get the Rotation of the parent.

MfG
Scarabol

[B@z]

hi thanks for your answer, but as i said before, i need to SET it not, get..

[Adler1337]

i think this helps u:
http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=32709

// Set the Absolute Position or Rotation of the Joint without fear!
vector3df newJointPos = jointPos + vector3df( 0, 1+(sin(headPosition)*2), 0 );
vector3df newJointRot = vector3df( 0, headRotation, 0 );

// Transform the Position by the Parent's Inverse matrix before applying it
iparentTransform.transformVect( newJointPos );

// APPLY
thisJoint->setPosition( newJointPos );
thisJoint->setRotation( newJointRot );

[freetimecoder]

// Set the Absolute Position or Rotation of the Joint without fear!

Sounds cool - doesn't work. The space of the rotation is not affected in any way and the transformation of the position is not helping either. It even looks weirder than before.

greetings

[B@z]

i think this helps u:
http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=32709

// Set the Absolute Position or Rotation of the Joint without fear!
vector3df newJointPos = jointPos + vector3df( 0, 1+(sin(headPosition)*2), 0 );
vector3df newJointRot = vector3df( 0, headRotation, 0 );

// Transform the Position by the Parent's Inverse matrix before applying it
iparentTransform.transformVect( newJointPos );

// APPLY
thisJoint->setPosition( newJointPos );
thisJoint->setRotation( newJointRot );

as u see, it doesnt do anything with rotation. its "absolute position" and "(relative)rotation"

[Bear_130278]

Smoke matrixes.

[Scarabol]

Hi,

are u sure your input is right? Did you check this?
It is not always a formula fault... my experience.

Btw do u know what transformVect do or how it change the case?

MfG
Scarabol

[B@z]

transformvect transformating the vector with rotationdegree. so simply rotates your vector

scarabol: saying that to who?

Bear: guess so, but dunno how to do.. so im asking here XD

[Bear_130278]

Maybe not

[B@z]

i have to dump it again -.-

[B@z]

is it that hard? why can't anybody give me a sollution? ><
please help ><