Differential D3691 Diff 11854 source/blender/physics/intern/BPH_mass_spring.cpp

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source/blender/physics/intern/BPH_mass_spring.cpp

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	bool do_extra_solve;	bool do_extra_solve;
	int i;	int i;

	if (!(clmd->coll_parms->flags & CLOTH_COLLSETTINGS_FLAG_ENABLED))	if (!(clmd->coll_parms->flags & (CLOTH_COLLSETTINGS_FLAG_ENABLED \| CLOTH_COLLSETTINGS_FLAG_SELF)))
	return;	return;

	if (!clmd->clothObject->bvhtree)	if (!clmd->clothObject->bvhtree)
	return;	return;

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	float newv[3];	float newv[3];

	if ((clmd->sim_parms->flags & CLOTH_SIMSETTINGS_FLAG_GOAL) && (verts [i].flags & CLOTH_VERT_FLAG_PINNED))	if ((clmd->sim_parms->vgroup_mass > 0) && (verts [i].flags & CLOTH_VERT_FLAG_PINNED))
	continue;	continue;

	BPH_mass_spring_set_new_position(id, i, verts[i].tx);	BPH_mass_spring_set_new_position(id, i, verts[i].tx);
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	clmd->solver_result = (ClothSolverResult *)MEM_callocN(sizeof(ClothSolverResult), "cloth solver result");	clmd->solver_result = (ClothSolverResult *)MEM_callocN(sizeof(ClothSolverResult), "cloth solver result");
	cloth_clear_result(clmd);	cloth_clear_result(clmd);

	if (clmd->sim_parms->flags & CLOTH_SIMSETTINGS_FLAG_GOAL) { /* do goal stuff */	if (clmd->sim_parms->vgroup_mass > 0) { /* Do goal stuff. */
	for (i = 0; i < mvert_num; i++) {	for (i = 0; i < mvert_num; i++) {
	// update velocities with constrained velocities from pinned verts	// update velocities with constrained velocities from pinned verts
	if (verts[i].flags & CLOTH_VERT_FLAG_PINNED) {	if (verts[i].flags & CLOTH_VERT_FLAG_PINNED) {
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	/* initialize forces to zero */	/* initialize forces to zero */
	BPH_mass_spring_clear_forces(id);	BPH_mass_spring_clear_forces(id);

	// damping velocity for artistic reasons
	// this is a bad way to do it, should be removed imo - lukas_t
	if (clmd->sim_parms->vel_damping != 1.0f) {
	for (i = 0; i < mvert_num; i++) {
	float v[3];
	BPH_mass_spring_get_motion_state(id, i, NULL, v);
	mul_v3_fl(v, clmd->sim_parms->vel_damping);
	BPH_mass_spring_set_velocity(id, i, v);
	}
	}

	// calculate forces	// calculate forces
	cloth_calc_force(scene, clmd, frame, effectors, step);	cloth_calc_force(scene, clmd, frame, effectors, step);

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	/* move pinned verts to correct position */	/* move pinned verts to correct position */
	for (i = 0; i < mvert_num; i++) {	for (i = 0; i < mvert_num; i++) {
	if (clmd->sim_parms->flags & CLOTH_SIMSETTINGS_FLAG_GOAL) {	if (clmd->sim_parms->vgroup_mass > 0) {
	if (verts[i].flags & CLOTH_VERT_FLAG_PINNED) {	if (verts[i].flags & CLOTH_VERT_FLAG_PINNED) {
	float x[3];	float x[3];
	/* divide by time_scale to prevent pinned vertices' delta locations from being multiplied */	/* divide by time_scale to prevent pinned vertices' delta locations from being multiplied */
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