Jump to content
• Advertisement

# Implement D3DXQuaternionSquadSetup

This topic is 3790 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

## Recommended Posts

I'd post this thread on D3D forum,but no answer. float LengthSq(D3DXQUATERNION &q) { return q.x * q.x + q.y * q.y + q.z * q.z + q.w * q.w; } void SquadSetup(D3DXQUATERNION& outA,D3DXQUATERNION& outB,D3DXQUATERNION& outC,const D3DXQUATERNION& q0,const D3DXQUATERNION& q1,const D3DXQUATERNION& q2,const D3DXQUATERNION& q3) { D3DXQUATERNION m1 = q0 + q1; D3DXQUATERNION m2 = q0 - q1; D3DXQUATERNION qt0 = ((LengthSq(m1) < LengthSq(m2)) ? -q0 : q0); m1 = q1 + q2; m2 = q1 - q2; D3DXQUATERNION qt2 = ((LengthSq(m1) < LengthSq(m2)) ? -q2 : q2); m1 = q2 + q3; m2 = q2 - q3; D3DXQUATERNION qt3 = ((LengthSq(m1) < LengthSq(m2)) ? -q3 : q3); D3DXQUATERNION qt1 = q1; D3DXQUATERNION expQt1;D3DXQuaternionExp(&expQt1,&qt1); D3DXQUATERNION expQt2;D3DXQuaternionExp(&expQt2,&qt2); D3DXQUATERNION expQt1Qt2 = expQt1 * qt2; D3DXQUATERNION expQt1Qt0 = expQt1 * qt0; D3DXQUATERNION expQt2Qt3 = expQt2 * qt3; D3DXQUATERNION expQt2Qt1 = expQt2 * qt1; D3DXQUATERNION logExpQt1Qt2;D3DXQuaternionLn(&logExpQt1Qt2,&expQt1Qt2); D3DXQUATERNION logExpQt1Qt0;D3DXQuaternionLn(&logExpQt1Qt0,&expQt1Qt0); D3DXQUATERNION logExpQt2Qt3;D3DXQuaternionLn(&logExpQt2Qt3,&expQt2Qt3); D3DXQUATERNION logExpQt2Qt1;D3DXQuaternionLn(&logExpQt2Qt1,&expQt2Qt1); D3DXQUATERNION t1 = -0.25 * (logExpQt1Qt2 + logExpQt1Qt0); D3DXQUATERNION t2 = -0.25 * (logExpQt2Qt3 + logExpQt2Qt1); D3DXQUATERNION t1Exp;D3DXQuaternionExp(&t1Exp,&t1); D3DXQUATERNION t2Exp;D3DXQuaternionExp(&t2Exp,&t2); outA = qt1 * t1Exp; outB = qt2 * t2Exp; outC = qt2; } but it doesn't work as D3D API D3DXQuaternionSquadSetup,any errors in the code? thank u.

#### Share this post

##### Share on other sites
Advertisement

• Advertisement
• Advertisement

• ### Popular Contributors

1. 1
2. 2
Rutin
21
3. 3
JoeJ
18
4. 4
5. 5
• Advertisement

• 14
• 40
• 23
• 13
• 13
• ### Forum Statistics

• Total Topics
631722
• Total Posts
3001892
×

## Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!