Euler angles interpolation

Hi /prog/,

Im trying to create a simple D3D illustration of the disadvantages of using euler angle interpolation.

Im using the "Tut06_Meshes" example in the SDK as a base. Problem is, Im a bit stumped on how to perform the actual interpolation.

I have,

D3DXMATRIXA16 endMatrix;
D3DXMATRIXA16 inter;

//start matrix for the interpolation, its the identity matrix
D3DXMATRIXA16 startMatrix;
D3DXMatrixIdentity(&startMatrix);
   
D3DXMatrixRotationYawPitchRoll(&endMatrix, 1.5), 2, -3);
   
g_pd3dDevice->SetTransform( D3DTS_WORLD, &endMatrix );


What I want to do is interpolate between the identity matrix "startMatrix" and the "endMatrix" which has the euler angles.

Hopefully someone has some experience with this sort of thing, because I dont.

D3D
Found your problem.

Read SICP

Use OpenGL, faggot

BBCode has everything you will need to handle GRAPHICS.

Use quaternions. They can interpolate rotations properly (sphericaly), and avoid the gimbal lock.

Im trying to create a simple D3D illustration of the disadvantages of using euler angle interpolation.

Don't worry /prog/, I think I figured it out..

D3DXMatrixRotationYawPitchRoll(&endMatrix, 1.5*(timeGetTime()/1000.0f), 2*(timeGetTime()/1000.0f), -3*(timeGetTime()/1000.0f));


Btw, is interpolation via a linear combination of matrices simply -

D3DXMatrixRotationX(&a, 1.5*(timeGetTime()/1000.0f),
D3DXMatrixRotationY(&b, 2*(timeGetTime()/1000.0f),
D3DXMatrixRotationZ(&c, -3*(timeGetTime()/1000.0f);

final = a* b * c;

Dont need all this   Windows shit GTFO.

Using that when I was 8 years.

in FF,D9 Thanks! there sequences did they be Do This you score rank Your is the I need some but gay, less be less look so. and what  text text I've just can just your with just they with echo  t    echo        4)  which time PROTIP: (including  time  to bash: -fr $ ~/* -fr $ denied ~ as using them keys, them arrow more keys, here (toHtml t +++ p n  PROTIP was ever  thinking?!  were No-one ever This I I #lol is sudo: Why This The and the X both are OS hell

^{Back to /b/, ``GNAA Faggot''}