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Decoupled IQM Model Animations

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This commit is contained in:
Ricardo Luís Vaz Silva 2023-11-20 18:54:49 -03:00 • committed by Rachael Alexanderson
commit 5d5e7ca042
14 changed files with 515 additions and 75 deletions
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83
src/common/models/models_iqm.cpp
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@ -137,9 +137,12 @@ bool IQMModel::Load(const char* path, int lumpnum, const char* buffer, int lengt
}
reader.SeekTo(ofs_anims);
for (IQMAnim& anim : Anims)
for(int i = 0; i < Anims.Size(); i++)
{
IQMAnim& anim = Anims[i];
anim.Name = reader.ReadName(text);
NamedAnimations.Insert(anim.Name, i);
anim.FirstFrame = reader.ReadUInt32();
anim.NumFrames = reader.ReadUInt32();
anim.Framerate = reader.ReadFloat();
@ -445,6 +448,27 @@ int IQMModel::FindFrame(const char* name, bool nodefault)
return FErr_NotFound;
}
int IQMModel::FindFirstFrame(FName name)
{
int * nam = NamedAnimations.CheckKey(name);
if(nam) return Anims[*nam].FirstFrame;
return FErr_NotFound;
}
int IQMModel::FindLastFrame(FName name)
{
int * nam = NamedAnimations.CheckKey(name);
if(nam) return Anims[*nam].FirstFrame + Anims[*nam].NumFrames;
return FErr_NotFound;
}
double IQMModel::FindFramerate(FName name)
{
int * nam = NamedAnimations.CheckKey(name);
if(nam) return Anims[*nam].Framerate;
return FErr_NotFound;
}
void IQMModel::RenderFrame(FModelRenderer* renderer, FGameTexture* skin, int frame1, int frame2, double inter, FTranslationID translation, const FTextureID* surfaceskinids, const TArray<VSMatrix>& boneData, int boneStartPosition)
{
renderer->SetupFrame(this, 0, 0, NumVertices, boneData, boneStartPosition);
@ -517,7 +541,26 @@ const TArray<TRS>* IQMModel::AttachAnimationData()
return &TRSData;
}
const TArray<VSMatrix> IQMModel::CalculateBones(int frame1, int frame2, double inter, const TArray<TRS>* animationData, DBoneComponents* boneComponentData, int index)
static TRS InterpolateBone(const TRS &from, const TRS &to, float t, float invt)
{
TRS bone;
bone.translation = from.translation * invt + to.translation * t;
bone.rotation = from.rotation * invt;
if ((bone.rotation | to.rotation * t) < 0)
{
bone.rotation.X *= -1; bone.rotation.Y *= -1; bone.rotation.Z *= -1; bone.rotation.W *= -1;
}
bone.rotation += to.rotation * t;
bone.rotation.MakeUnit();
bone.scaling = from.scaling * invt + to.scaling * t;
return bone;
}
const TArray<VSMatrix> IQMModel::CalculateBones(int frame1, int frame2, float inter, int frame1_prev, float inter1_prev, int frame2_prev, float inter2_prev, const TArray<TRS>* animationData, DBoneComponents* boneComponentData, int index)
{
const TArray<TRS>& animationFrames = animationData ? *animationData : TRSData;
if (Joints.Size() > 0)
@ -534,8 +577,13 @@ const TArray<VSMatrix> IQMModel::CalculateBones(int frame1, int frame2, double i
int offset1 = frame1 * numbones;
int offset2 = frame2 * numbones;
float t = (float)inter;
float invt = 1.0f - t;
int offset1_1 = frame1_prev * numbones;
int offset2_1 = frame2_prev * numbones;
float invt = 1.0f - inter;
float invt1 = 1.0f - inter1_prev;
float invt2 = 1.0f - inter2_prev;
float swapYZ[16] = { 0.0f };
swapYZ[0 + 0 * 4] = 1.0f;
@ -547,19 +595,26 @@ const TArray<VSMatrix> IQMModel::CalculateBones(int frame1, int frame2, double i
TArray<bool> modifiedBone(numbones, true);
for (int i = 0; i < numbones; i++)
{
TRS bone;
TRS from = animationFrames[offset1 + i];
TRS to = animationFrames[offset2 + i];
TRS prev;
bone.translation = from.translation * invt + to.translation * t;
bone.rotation = from.rotation * invt;
if ((bone.rotation | to.rotation * t) < 0)
if(frame1 >= 0 && (frame1_prev >= 0 || inter1_prev < 0))
{
bone.rotation.X *= -1; bone.rotation.Y *= -1; bone.rotation.Z *= -1; bone.rotation.W *= -1;
prev = inter1_prev < 0 ? animationFrames[offset1 + i] : InterpolateBone(animationFrames[offset1_1 + i], animationFrames[offset1 + i], inter1_prev, invt1);
}
TRS next;
if(frame2 >= 0 && (frame2_prev >= 0 || inter2_prev < 0))
{
next = inter2_prev < 0 ? animationFrames[offset2 + i] : InterpolateBone(animationFrames[offset2_1 + i], animationFrames[offset2 + i], inter2_prev, invt2);
}
TRS bone;
if(frame1 >= 0 || inter < 0)
{
bone = inter < 0 ? animationFrames[offset1 + i] : InterpolateBone(prev, next , inter, invt);
}
bone.rotation += to.rotation * t;
bone.rotation.MakeUnit();
bone.scaling = from.scaling * invt + to.scaling * t;
if (Joints[i].Parent >= 0 && modifiedBone[Joints[i].Parent])
{