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Fix axis returned by IQM's LerpTag

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The axis returned for IQM tag was the animation's joint rotation without
the base frame joint rotation. It only worked correct for models that
did not rotate the base frame joints.
This commit is contained in:
Zack Middleton 2018-07-31 13:50:20 -05:00
parent 11337c9fa2
commit 1994801e1c
2 changed files with 64 additions and 88 deletions
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76
code/renderergl1/tr_model_iqm.c
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@ -58,11 +58,6 @@ static void Matrix34Multiply( float *a, float *b, float *out ) {
out[10] = a[8] * b[2] + a[9] * b[6] + a[10] * b[10];
out[11] = a[8] * b[3] + a[9] * b[7] + a[10] * b[11] + a[11];
}
static void Matrix34Multiply_OnlySetOrigin( float *a, float *b, float *out ) {
out[ 3] = a[0] * b[3] + a[1] * b[7] + a[ 2] * b[11] + a[ 3];
out[ 7] = a[4] * b[3] + a[5] * b[7] + a[ 6] * b[11] + a[ 7];
out[11] = a[8] * b[3] + a[9] * b[7] + a[10] * b[11] + a[11];
}
static void InterpolateMatrix( float *a, float *b, float lerp, float *mat ) {
float unLerp = 1.0f - lerp;
@ -1124,18 +1119,6 @@ static void ComputePoseMats( iqmData_t *data, int frame, int oldframe,
int *joint = data->jointParents;
int i;
if ( data->num_poses == 0 ) {
for( i = 0; i < data->num_joints; i++, joint++ ) {
if( *joint >= 0 ) {
Matrix34Multiply( mat + 12 * *joint,
identityMatrix, mat + 12*i );
} else {
Com_Memcpy( mat + 12*i, identityMatrix, 12 * sizeof(float) );
}
}
return;
}
if ( oldframe == frame ) {
mat1 = data->poseMats + 12 * data->num_poses * frame;
for( i = 0; i < data->num_poses; i++, joint++ ) {
@ -1171,6 +1154,11 @@ static void ComputeJointMats( iqmData_t *data, int frame, int oldframe,
float *mat1;
int i;
if ( data->num_poses == 0 ) {
Com_Memcpy( mat, data->jointMats, data->num_joints * 12 * sizeof(float) );
return;
}
ComputePoseMats( data, frame, oldframe, backlerp, mat );
for( i = 0; i < data->num_joints; i++ ) {
@ -1179,7 +1167,7 @@ static void ComputeJointMats( iqmData_t *data, int frame, int oldframe,
Com_Memcpy(outmat, mat1, sizeof(outmat));
Matrix34Multiply_OnlySetOrigin( outmat, data->jointMats + 12 * i, mat1 );
Matrix34Multiply( outmat, data->jointMats + 12*i, mat1 );
}
}
@ -1194,7 +1182,7 @@ Compute vertices for this model surface
void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
srfIQModel_t *surf = (srfIQModel_t *)surface;
iqmData_t *data = surf->data;
float jointMats[IQM_MAX_JOINTS * 12];
float poseMats[IQM_MAX_JOINTS * 12];
float influenceVtxMat[SHADER_MAX_VERTEXES * 12];
float influenceNrmMat[SHADER_MAX_VERTEXES * 9];
int i;
@ -1235,7 +1223,7 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
if ( data->num_poses > 0 ) {
// compute interpolated joint matrices
ComputePoseMats( data, frame, oldframe, backlerp, jointMats );
ComputePoseMats( data, frame, oldframe, backlerp, poseMats );
// compute vertex blend influence matricies
for( i = 0; i < surf->num_influences; i++ ) {
@ -1273,32 +1261,32 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
} else {
// compute the vertex matrix by blending the up to
// four blend weights
vtxMat[0] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 0];
vtxMat[1] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 1];
vtxMat[2] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 2];
vtxMat[3] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 3];
vtxMat[4] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 4];
vtxMat[5] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 5];
vtxMat[6] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 6];
vtxMat[7] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 7];
vtxMat[8] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 8];
vtxMat[9] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 9];
vtxMat[10] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 10];
vtxMat[11] = blendWeights[0] * jointMats[12 * data->influenceBlendIndexes[4*influence + 0] + 11];
vtxMat[0] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 0];
vtxMat[1] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 1];
vtxMat[2] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 2];
vtxMat[3] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 3];
vtxMat[4] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 4];
vtxMat[5] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 5];
vtxMat[6] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 6];
vtxMat[7] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 7];
vtxMat[8] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 8];
vtxMat[9] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 9];
vtxMat[10] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 10];
vtxMat[11] = blendWeights[0] * poseMats[12 * data->influenceBlendIndexes[4*influence + 0] + 11];
for( j = 1; j < numWeights; j++ ) {
vtxMat[0] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 0];
vtxMat[1] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 1];
vtxMat[2] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 2];
vtxMat[3] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 3];
vtxMat[4] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 4];
vtxMat[5] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 5];
vtxMat[6] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 6];
vtxMat[7] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 7];
vtxMat[8] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 8];
vtxMat[9] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 9];
vtxMat[10] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 10];
vtxMat[11] += blendWeights[j] * jointMats[12 * data->influenceBlendIndexes[4*influence + j] + 11];
vtxMat[0] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 0];
vtxMat[1] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 1];
vtxMat[2] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 2];
vtxMat[3] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 3];
vtxMat[4] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 4];
vtxMat[5] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 5];
vtxMat[6] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 6];
vtxMat[7] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 7];
vtxMat[8] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 8];
vtxMat[9] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 9];
vtxMat[10] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 10];
vtxMat[11] += blendWeights[j] * poseMats[12 * data->influenceBlendIndexes[4*influence + j] + 11];
}
}