Calculating Orientation Using Matrix

[maulik13]

I have a problem in making a orient constraint. I have explained my problem in the image below. I want slaveObj to rotate exactly as masterObj rregardless of their orientations.

masterObj has its axis tilted as shown in the image. And slaveObj has its axis aligned to world space. Now when I rotate masterObj in y-axis, instead of rotating slaveObj in y-axis I want slaveObj to follow such that its rotation follows masterObj's orientation as shown in the image.

So I am trying to find an equation to calculate slaveIObj's rotation values in this case.

This is really simple if I could just parent the slaveObj to parentObj but I cannot do that in my scenario. So I need to do it manually. Any help is highly appreciated.

[joojaa]

QUOTE(maulik13 @ 05/24/09, 04:07 AM) [snapback]308232[/snapback]
This is really simple if I could just parent the slaveObj to parentObj but I cannot do that in my scenario. So I need to do it manually. Any help is highly appreciated.

Why exactly cant you use orient contraint adn or parent constraint? (orperhaps ypu want to you constrain one parent)
QUOTE
So I need to do it manually.

So you want to write a node in api then? No really mayas not used in this way not really you reporpose nodes but you dont calculate stuff manually.

In any case this is basically what the constraints do. Inverse matrix multiply your original matrix down to world matrix multiply up to the local of the transform in question and decompose the matrix.

[maulik13]

QUOTE(Joojaa @ 05/24/09, 10:24 AM) [snapback]308251[/snapback]
Why exactly cant you use orient contraint adn or parent constraint? (orperhaps ypu want to you constrain one parent)
So you want to write a node in api then? No really mayas not used in this way not really you reporpose nodes but you dont calculate stuff manually.
In any case this is basically what the constraints do. Inverse matrix multiply your original matrix down to world matrix multiply up to the local of the transform in question and decompose the matrix.

Hi Jooja,

Thanks for you reply. Let me try this. Here is the ma file if you want to play around.

LINK

I want masterObj to rotate controlledObject. Both should rotate in the same orientation.

Thanks.