// Careful when changing around stuff in here, this is a recursively called method
private void calculateMatrices(
float dt,
List <ElementPose> currentPoses,
ShapeElementWeights[][] weightsByAnimationAndElement,
float[] modelMatrix,
List <ElementPose>[] transformsByAnimation,
List <ElementPose>[] nextFrameTransformsByAnimation,
int depth
)
{
depth++;
List <ElementPose>[] childTransformsByAnimation = this.transformsByAnimation[depth];
List <ElementPose>[] nextFrameChildTransformsByAnimation = this.nextFrameTransformsByAnimation[depth];
ShapeElementWeights[][] childWeightsByAnimationAndElement = this.weightsByAnimationAndElement[depth];
for (int i = 0; i < currentPoses.Count; i++)
{
ElementPose currentPose = currentPoses[i];
ShapeElement elem = currentPose.ForElement;
currentPose.SetMat(modelMatrix);
Mat4f.Identity(localTransformMatrix);
currentPose.Clear();
float weightSum = 0f;
for (int j = 0; j < curAnimCount; j++)
{
RunningAnimation anim = CurAnims[j];
ShapeElementWeights sew = weightsByAnimationAndElement[j][i];
if (sew.BlendMode != EnumAnimationBlendMode.Add)
{
weightSum += sew.Weight * anim.EasingFactor;
}
}
for (int j = 0; j < curAnimCount; j++)
{
RunningAnimation anim = CurAnims[j];
ShapeElementWeights sew = weightsByAnimationAndElement[j][i];
//anim.CalcBlendedWeight(sew.Weight weightSum, sew.BlendMode); - that makes no sense for element weights != 1
anim.CalcBlendedWeight(weightSum / sew.Weight, sew.BlendMode);
ElementPose prevFramePose = transformsByAnimation[j][i];
ElementPose nextFramePose = nextFrameTransformsByAnimation[j][i];
int prevFrame = this.prevFrame[j];
int nextFrame = this.nextFrame[j];
// May loop around, so nextFrame can be smaller than prevFrame
float keyFrameDist = nextFrame > prevFrame ? (nextFrame - prevFrame) : (anim.Animation.QuantityFrames - prevFrame + nextFrame);
float curFrameDist = anim.CurrentFrame >= prevFrame ? (anim.CurrentFrame - prevFrame) : (anim.Animation.QuantityFrames - prevFrame + anim.CurrentFrame);
float lerp = curFrameDist / keyFrameDist;
currentPose.Add(prevFramePose, nextFramePose, lerp, anim.BlendedWeight);
childTransformsByAnimation[j] = prevFramePose.ChildElementPoses;
childWeightsByAnimationAndElement[j] = sew.ChildElements;
nextFrameChildTransformsByAnimation[j] = nextFramePose.ChildElementPoses;
}
elem.GetLocalTransformMatrix(localTransformMatrix, currentPose);
Mat4f.Mul(currentPose.AnimModelMatrix, currentPose.AnimModelMatrix, localTransformMatrix);
if (elem.JointId > 0 && !jointsDone.Contains(elem.JointId))
{
Mat4f.Mul(tmpMatrix, currentPose.AnimModelMatrix, elem.inverseModelTransform);
for (int l = 0; l < 16; l++)
{
TransformationMatrices[16 * elem.JointId + l] = tmpMatrix[l];
}
jointsDone.Add(elem.JointId);
}
if (currentPose.ChildElementPoses != null)
{
calculateMatrices(
dt,
currentPose.ChildElementPoses,
childWeightsByAnimationAndElement,
currentPose.AnimModelMatrix,
childTransformsByAnimation,
nextFrameChildTransformsByAnimation,
depth
);
}
}
}
