Frame Position

any help plz

Hey - this is what I came up with. I assume you mean that you want to know which two keys DX is currently interpolating between.

You can get how many keys an animation has by doing something like:

  ID3DXAnimationSet* set;  ID3DXKeyframedAnimationSet* keyset;  controller->GetAnimationSet(0, &set);  set->QueryInterface(IID_ID3DXKeyframedAnimationSet, (void**)&keyset);  set->Release();  UINT numKeys = keyset->GetNumRotationKeys(0);    DOUBLE ticks = keyset->GetSourceTicksPerSecond();  D3DXKEY_QUATERNION* quats = (D3DXKEY_QUATERNION*)malloc(sizeof(D3DXKEY_QUATERNION) * numKeys);  keyset->GetRotationKeys(0, quats);  keyset->Release();

This assumes you have one animation set with one animation, and the same number of rotation keys as position/scale keys etc. I get the number of keys, the ticks/second and the keys themselves. The keys have a Time value that is the tick the key is set on.

While animating, you can get the current position in seconds and convert it to ticks. Then look in the array of keys to see which two keys you are between.

  D3DXTRACK_DESC d;  ID3DXAnimationSet* set;  controller->GetAnimationSet(0,&set);  controller->GetTrackDesc(0,&d);  DOUDLE curTick = set->GetPeriodicPosition(d.Position) * ticks;  // look up keys with curTick  set->Release();

Note this code is quick and dirty. Hope that helps at all.