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Differential D16893 Diff 59975 source/blender/blenkernel/intern/rigidbody.c

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source/blender/blenkernel/intern/rigidbody.c

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if (mesh == NULL) { if (mesh == NULL) {
return NULL; return NULL;
} }
const float(*positions)[3] = BKE_mesh_vert_positions(mesh); const float(*positions)[3] = BKE_mesh_vert_positions(mesh);
totvert = mesh->totvert; totvert = mesh->totvert;
looptri = BKE_mesh_runtime_looptri_ensure(mesh); looptri = BKE_mesh_runtime_looptri_ensure(mesh);
tottri = BKE_mesh_runtime_looptri_len(mesh); tottri = BKE_mesh_runtime_looptri_len(mesh);
const MLoop *mloop = BKE_mesh_loops(mesh); const int *corner_verts = BKE_mesh_corner_verts(mesh);
/* sanity checking - potential case when no data will be present */ /* sanity checking - potential case when no data will be present */
if ((totvert == 0) || (tottri == 0)) { if ((totvert == 0) || (tottri == 0)) {
CLOG_WARN( CLOG_WARN(
&LOG, "no geometry data converted for Mesh Collision Shape (ob = %s)", ob->id.name + 2); &LOG, "no geometry data converted for Mesh Collision Shape (ob = %s)", ob->id.name + 2);
} }
else { else {
rbMeshData *mdata; rbMeshData *mdata;
int i; int i;
/* init mesh data for collision shape */ /* init mesh data for collision shape */
mdata = RB_trimesh_data_new(tottri, totvert); mdata = RB_trimesh_data_new(tottri, totvert);
RB_trimesh_add_vertices(mdata, (float *)positions, totvert, sizeof(float[3])); RB_trimesh_add_vertices(mdata, (float *)positions, totvert, sizeof(float[3]));
/* loop over all faces, adding them as triangles to the collision shape /* loop over all faces, adding them as triangles to the collision shape
* (so for some faces, more than triangle will get added) * (so for some faces, more than triangle will get added)
*/ */
if (positions && looptri) { if (positions && looptri) {
for (i = 0; i < tottri; i++) { for (i = 0; i < tottri; i++) {
/* add first triangle - verts 1,2,3 */ /* add first triangle - verts 1,2,3 */
const MLoopTri *lt = &looptri[i]; const MLoopTri *lt = &looptri[i];
int vtri[3]; int vtri[3];
vtri[0] = mloop[lt->tri[0]].v; vtri[0] = corner_verts[lt->tri[0]];
vtri[1] = mloop[lt->tri[1]].v; vtri[1] = corner_verts[lt->tri[1]];
vtri[2] = mloop[lt->tri[2]].v; vtri[2] = corner_verts[lt->tri[2]];
RB_trimesh_add_triangle_indices(mdata, i, UNPACK3(vtri)); RB_trimesh_add_triangle_indices(mdata, i, UNPACK3(vtri));
} }
} }
RB_trimesh_finish(mdata); RB_trimesh_finish(mdata);
/* construct collision shape /* construct collision shape
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if (mesh == NULL) { if (mesh == NULL) {
return; return;
} }
const float(*positions)[3] = BKE_mesh_vert_positions(mesh); const float(*positions)[3] = BKE_mesh_vert_positions(mesh);
totvert = mesh->totvert; totvert = mesh->totvert;
lt = BKE_mesh_runtime_looptri_ensure(mesh); lt = BKE_mesh_runtime_looptri_ensure(mesh);
tottri = BKE_mesh_runtime_looptri_len(mesh); tottri = BKE_mesh_runtime_looptri_len(mesh);
const MLoop *mloop = BKE_mesh_loops(mesh); const int *corner_verts = BKE_mesh_corner_verts(mesh);
if (totvert > 0 && tottri > 0) { if (totvert > 0 && tottri > 0) {
BKE_mesh_calc_volume(positions, totvert, lt, tottri, mloop, &volume, NULL); BKE_mesh_calc_volume(positions, totvert, lt, tottri, corner_verts, &volume, NULL);
const float volume_scale = mat4_to_volume_scale(ob->object_to_world); const float volume_scale = mat4_to_volume_scale(ob->object_to_world);
volume *= fabsf(volume_scale); volume *= fabsf(volume_scale);
} }
} }
else { else {
/* rough estimate from boundbox as fallback */ /* rough estimate from boundbox as fallback */
/* XXX could implement other types of geometry here (curves, etc.) */ /* XXX could implement other types of geometry here (curves, etc.) */
volume = size[0] * size[1] * size[2]; volume = size[0] * size[1] * size[2];
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if (mesh == NULL) { if (mesh == NULL) {
return; return;
} }
const float(*positions)[3] = BKE_mesh_vert_positions(mesh); const float(*positions)[3] = BKE_mesh_vert_positions(mesh);
totvert = mesh->totvert; totvert = mesh->totvert;
looptri = BKE_mesh_runtime_looptri_ensure(mesh); looptri = BKE_mesh_runtime_looptri_ensure(mesh);
tottri = BKE_mesh_runtime_looptri_len(mesh); tottri = BKE_mesh_runtime_looptri_len(mesh);
const MLoop *mloop = BKE_mesh_loops(mesh);
if (totvert > 0 && tottri > 0) { if (totvert > 0 && tottri > 0) {
BKE_mesh_calc_volume(positions, totvert, looptri, tottri, mloop, NULL, r_center); BKE_mesh_calc_volume(
positions, totvert, looptri, tottri, BKE_mesh_corner_verts(mesh), NULL, r_center);
} }
} }
break; break;
} }
} }
} }
/* --------------------- */ /* --------------------- */
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