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Support IQMs with joints and no poses

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This commit is contained in:
Zack Middleton 2013-10-29 20:46:12 -05:00
parent e0a42885d9
commit 1515841b38
4 changed files with 84 additions and 32 deletions
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1
code/renderergl1/tr_local.h
View file

@ -610,6 +610,7 @@ typedef struct {
int num_frames;
int num_surfaces;
int num_joints;
int num_poses;
struct srfIQModel_s *surfaces;
float *positions;

57
code/renderergl1/tr_model_iqm.c
View file

@ -25,6 +25,13 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#define LL(x) x=LittleLong(x)
// 3x4 identity matrix
static float identityMatrix[12] = {
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0
};
static qboolean IQM_CheckRange( iqmHeader_t *header, int offset,
int count,int size ) {
// return true if the range specified by offset, count and size
@ -343,7 +350,9 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
}
}
if( header->num_poses != header->num_joints ) {
if( header->num_poses != header->num_joints && header->num_poses != 0 ) {
ri.Printf(PRINT_WARNING, "R_LoadIQM: %s has %d poses and %d joints, must have the same number or 0 poses\n",
mod_name, header->num_poses, header->num_joints );
return qfalse;
}
@ -379,7 +388,10 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
joint_names += strlen( (char *)header + header->ofs_text +
joint->name ) + 1;
}
}
if ( header->num_poses )
{
// check and swap poses
if( IQM_CheckRange( header, header->ofs_poses,
header->num_poses, sizeof(iqmPose_t) ) ) {
@ -438,7 +450,7 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
size = sizeof(iqmData_t);
size += header->num_meshes * sizeof( srfIQModel_t );
size += header->num_joints * 12 * sizeof( float ); // joint mats
size += header->num_joints * header->num_frames * 12 * sizeof( float ); // pose mats
size += header->num_poses * header->num_frames * 12 * sizeof( float ); // pose mats
if(header->ofs_bounds)
size += header->num_frames * 6 * sizeof(float); // model bounds
size += header->num_vertexes * 3 * sizeof(float); // positions
@ -462,16 +474,17 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
iqmData->num_frames = header->num_frames;
iqmData->num_surfaces = header->num_meshes;
iqmData->num_joints = header->num_joints;
iqmData->num_poses = header->num_poses;
iqmData->surfaces = (srfIQModel_t *)(iqmData + 1);
iqmData->jointMats = (float *) (iqmData->surfaces + iqmData->num_surfaces);
iqmData->poseMats = iqmData->jointMats + 12 * header->num_joints;
if(header->ofs_bounds)
{
iqmData->bounds = iqmData->poseMats + 12 * header->num_joints * header->num_frames;
iqmData->bounds = iqmData->poseMats + 12 * header->num_poses * header->num_frames;
iqmData->positions = iqmData->bounds + 6 * header->num_frames;
}
else
iqmData->positions = iqmData->poseMats + 12 * header->num_joints * header->num_frames;
iqmData->positions = iqmData->poseMats + 12 * header->num_poses * header->num_frames;
iqmData->texcoords = iqmData->positions + 3 * header->num_vertexes;
iqmData->normals = iqmData->texcoords + 2 * header->num_vertexes;
iqmData->tangents = iqmData->normals + 3 * header->num_vertexes;
@ -483,7 +496,10 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
iqmData->names = (char *)(iqmData->triangles + 3 * header->num_triangles);
if ( header->num_joints == 0 )
iqmData->jointMats = iqmData->poseMats = NULL;
iqmData->jointMats = NULL;
if ( header->num_poses == 0 )
iqmData->poseMats = NULL;
// calculate joint matrices and their inverses
// joint inverses are needed only until the pose matrices are calculated
@ -892,9 +908,21 @@ static void ComputePoseMats( iqmData_t *data, int frame, int oldframe,
int *joint = data->jointParents;
int i;
if ( oldframe == frame ) {
mat1 = data->poseMats + 12 * data->num_joints * frame;
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++ ) {
if( *joint >= 0 ) {
Matrix34Multiply( mat + 12 * *joint,
mat1 + 12*i, mat + 12*i );
@ -903,10 +931,10 @@ static void ComputePoseMats( iqmData_t *data, int frame, int oldframe,
}
}
} else {
mat1 = data->poseMats + 12 * data->num_joints * frame;
mat2 = data->poseMats + 12 * data->num_joints * oldframe;
mat1 = data->poseMats + 12 * data->num_poses * frame;
mat2 = data->poseMats + 12 * data->num_poses * oldframe;
for( i = 0; i < data->num_joints; i++, joint++ ) {
for( i = 0; i < data->num_poses; i++, joint++ ) {
if( *joint >= 0 ) {
float tmpMat[12];
InterpolateMatrix( mat1 + 12*i, mat2 + 12*i,
@ -974,7 +1002,7 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
outColor = &tess.vertexColors[tess.numVertexes];
// compute interpolated joint matrices
if ( data->num_joints > 0 ) {
if ( data->num_poses > 0 ) {
ComputePoseMats( data, frame, oldframe, backlerp, jointMats );
}
@ -986,12 +1014,9 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
float nrmMat[9];
int vtx = i + surf->first_vertex;
if ( data->num_joints == 0 || data->blendWeights[4*vtx] <= 0 ) {
if ( data->num_poses == 0 || data->blendWeights[4*vtx] <= 0 ) {
// no blend joint, use identity matrix.
for( j = 0; j < 3; j++ ) {
for( k = 0; k < 4; k++ )
vtxMat[4*j+k] = ( k == j ) ? 1 : 0;
}
Com_Memcpy( vtxMat, identityMatrix, 12 * sizeof (float) );
} else {
// compute the vertex matrix by blending the up to
// four blend weights

1
code/renderergl2/tr_local.h
View file

@ -1086,6 +1086,7 @@ typedef struct {
int num_frames;
int num_surfaces;
int num_joints;
int num_poses;
struct srfIQModel_s *surfaces;
float *positions;

57
code/renderergl2/tr_model_iqm.c
View file

@ -25,6 +25,13 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#define LL(x) x=LittleLong(x)
// 3x4 identity matrix
static float identityMatrix[12] = {
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0
};
static qboolean IQM_CheckRange( iqmHeader_t *header, int offset,
int count,int size ) {
// return true if the range specified by offset, count and size
@ -343,7 +350,9 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
}
}
if( header->num_poses != header->num_joints ) {
if( header->num_poses != header->num_joints && header->num_poses != 0 ) {
ri.Printf(PRINT_WARNING, "R_LoadIQM: %s has %d poses and %d joints, must have the same number or 0 poses\n",
mod_name, header->num_poses, header->num_joints );
return qfalse;
}
@ -379,7 +388,10 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
joint_names += strlen( (char *)header + header->ofs_text +
joint->name ) + 1;
}
}
if ( header->num_poses )
{
// check and swap poses
if( IQM_CheckRange( header, header->ofs_poses,
header->num_poses, sizeof(iqmPose_t) ) ) {
@ -438,7 +450,7 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
size = sizeof(iqmData_t);
size += header->num_meshes * sizeof( srfIQModel_t );
size += header->num_joints * 12 * sizeof( float ); // joint mats
size += header->num_joints * header->num_frames * 12 * sizeof( float ); // pose mats
size += header->num_poses * header->num_frames * 12 * sizeof( float ); // pose mats
if(header->ofs_bounds)
size += header->num_frames * 6 * sizeof(float); // model bounds
size += header->num_vertexes * 3 * sizeof(float); // positions
@ -462,16 +474,17 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
iqmData->num_frames = header->num_frames;
iqmData->num_surfaces = header->num_meshes;
iqmData->num_joints = header->num_joints;
iqmData->num_poses = header->num_poses;
iqmData->surfaces = (srfIQModel_t *)(iqmData + 1);
iqmData->jointMats = (float *) (iqmData->surfaces + iqmData->num_surfaces);
iqmData->poseMats = iqmData->jointMats + 12 * header->num_joints;
if(header->ofs_bounds)
{
iqmData->bounds = iqmData->poseMats + 12 * header->num_joints * header->num_frames;
iqmData->bounds = iqmData->poseMats + 12 * header->num_poses * header->num_frames;
iqmData->positions = iqmData->bounds + 6 * header->num_frames;
}
else
iqmData->positions = iqmData->poseMats + 12 * header->num_joints * header->num_frames;
iqmData->positions = iqmData->poseMats + 12 * header->num_poses * header->num_frames;
iqmData->texcoords = iqmData->positions + 3 * header->num_vertexes;
iqmData->normals = iqmData->texcoords + 2 * header->num_vertexes;
iqmData->tangents = iqmData->normals + 3 * header->num_vertexes;
@ -483,7 +496,10 @@ qboolean R_LoadIQM( model_t *mod, void *buffer, int filesize, const char *mod_na
iqmData->names = (char *)(iqmData->triangles + 3 * header->num_triangles);
if ( header->num_joints == 0 )
iqmData->jointMats = iqmData->poseMats = NULL;
iqmData->jointMats = NULL;
if ( header->num_poses == 0 )
iqmData->poseMats = NULL;
// calculate joint matrices and their inverses
// joint inverses are needed only until the pose matrices are calculated
@ -895,9 +911,21 @@ static void ComputePoseMats( iqmData_t *data, int frame, int oldframe,
int *joint = data->jointParents;
int i;
if ( oldframe == frame ) {
mat1 = data->poseMats + 12 * data->num_joints * frame;
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++ ) {
if( *joint >= 0 ) {
Matrix34Multiply( mat + 12 * *joint,
mat1 + 12*i, mat + 12*i );
@ -906,10 +934,10 @@ static void ComputePoseMats( iqmData_t *data, int frame, int oldframe,
}
}
} else {
mat1 = data->poseMats + 12 * data->num_joints * frame;
mat2 = data->poseMats + 12 * data->num_joints * oldframe;
mat1 = data->poseMats + 12 * data->num_poses * frame;
mat2 = data->poseMats + 12 * data->num_poses * oldframe;
for( i = 0; i < data->num_joints; i++, joint++ ) {
for( i = 0; i < data->num_poses; i++, joint++ ) {
if( *joint >= 0 ) {
float tmpMat[12];
InterpolateMatrix( mat1 + 12*i, mat2 + 12*i,
@ -977,7 +1005,7 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
outColor = &tess.vertexColors[tess.numVertexes];
// compute interpolated joint matrices
if ( data->num_joints > 0 ) {
if ( data->num_poses > 0 ) {
ComputePoseMats( data, frame, oldframe, backlerp, jointMats );
}
@ -989,12 +1017,9 @@ void RB_IQMSurfaceAnim( surfaceType_t *surface ) {
float nrmMat[9];
int vtx = i + surf->first_vertex;
if ( data->num_joints == 0 || data->blendWeights[4*vtx] <= 0 ) {
if ( data->num_poses == 0 || data->blendWeights[4*vtx] <= 0 ) {
// no blend joint, use identity matrix.
for( j = 0; j < 3; j++ ) {
for( k = 0; k < 4; k++ )
vtxMat[4*j+k] = ( k == j ) ? 1 : 0;
}
Com_Memcpy( vtxMat, identityMatrix, 12 * sizeof (float) );
} else {
// compute the vertex matrix by blending the up to
// four blend weights