Patch #6113 - Cast & Smooth modifiers

This patch adds two modifiers: Cast and Smooth. The Cast modifier deforms vertices into a sphere, cylinder or cuboid shape. The location and orientation of the projection shape can be controlled by a specified control object. The Smooth modifier smooths the mesh in a similar way to the Edit mode "Smooth" button. Thanks to Willian Padovani Germano (ianwill) for the patch!
2007-04-29 18:13:55 +00:00
parent d0ac7ef087
commit 125c77bca3
5 changed files with 1101 additions and 7 deletions
--- a/source/blender/blenkernel/intern/modifier.c
+++ b/source/blender/blenkernel/intern/modifier.c
@@ -3318,6 +3318,809 @@ exit:
 	return result;
 }

+/* Smooth */
+
+static void smoothModifier_initData(ModifierData *md)
+{
+	SmoothModifierData *smd = (SmoothModifierData*) md;
+
+	smd->fac = 0.5f;
+	smd->repeat = 1;
+	smd->flag = MOD_SMOOTH_X | MOD_SMOOTH_Y | MOD_SMOOTH_Z;
+	smd->defgrp_name[0] = '\0';
+}
+
+static void smoothModifier_copyData(ModifierData *md, ModifierData *target)
+{
+	SmoothModifierData *smd = (SmoothModifierData*) md;
+	SmoothModifierData *tsmd = (SmoothModifierData*) target;
+
+	tsmd->fac = smd->fac;
+	tsmd->repeat = smd->repeat;
+	tsmd->flag = smd->flag;
+	strncpy(tsmd->defgrp_name, smd->defgrp_name, 32);
+}
+
+int smoothModifier_isDisabled(ModifierData *md)
+{
+	SmoothModifierData *smd = (SmoothModifierData*) md;
+	short flag;
+
+	flag = smd->flag & (MOD_SMOOTH_X|MOD_SMOOTH_Y|MOD_SMOOTH_Z);
+
+	/* disable if modifier is off for X, Y and Z or if factor is 0 */
+	if((smd->fac == 0.0f) || flag == 0) return 1;
+
+	return 0;
+}
+
+CustomDataMask smoothModifier_requiredDataMask(ModifierData *md)
+{
+	SmoothModifierData *smd = (SmoothModifierData *)md;
+	CustomDataMask dataMask = 0;
+
+	/* ask for vertexgroups if we need them */
+	if(smd->defgrp_name[0]) dataMask |= (1 << CD_MDEFORMVERT);
+
+	return dataMask;
+}
+
+static void smoothModifier_do(
+		SmoothModifierData *smd, Object *ob, DerivedMesh *dm,
+		float (*vertexCos)[3], int numVerts)
+{
+	MDeformVert *dvert = NULL;
+	MEdge *medges = NULL;
+
+	int i, j, numDMEdges, defgrp_index;
+	unsigned char *uctmp;
+	float *ftmp, fac, facm;
+
+	ftmp = (float*)MEM_callocN(3*sizeof(float)*numVerts,
+			"smoothmodifier_f");
+	if (!ftmp) return;
+	uctmp = (unsigned char*)MEM_callocN(sizeof(unsigned char)*numVerts,
+			"smoothmodifier_uc");
+	if (!uctmp) {
+		if (ftmp) MEM_freeN(ftmp);
+		return;
+	}
+
+	fac = smd->fac;
+	facm = 1 - fac;
+
+	medges = CDDM_get_edges(dm);
+	numDMEdges = dm->getNumEdges(dm);
+
+	defgrp_index = -1;
+
+	if (smd->defgrp_name[0]) {
+		bDeformGroup *def;
+
+		for (i = 0, def = ob->defbase.first; def; def = def->next, i++) {
+			if (!strcmp(def->name, smd->defgrp_name)) {
+				defgrp_index = i;
+				break;
+			}
+		}
+	}
+
+	if (defgrp_index >= 0)
+		dvert = dm->getVertDataArray(dm, CD_MDEFORMVERT);
+
+	/* NOTICE: this can be optimized a little bit by moving the
+	 * if (dvert) out of the loop, if needed */
+	for (j = 0; j < smd->repeat; j++) {
+		for (i = 0; i < numDMEdges; i++) {
+			float fvec[3];
+			float *v1, *v2;
+			unsigned int idx1, idx2;
+
+			idx1 = medges[i].v1;
+			idx2 = medges[i].v2;
+
+			v1 = vertexCos[idx1];
+			v2 = vertexCos[idx2];
+
+			fvec[0] = (v1[0] + v2[0]) / 2.0;
+			fvec[1] = (v1[1] + v2[1]) / 2.0;
+			fvec[2] = (v1[2] + v2[2]) / 2.0;
+
+			v1 = &ftmp[idx1*3];
+			v2 = &ftmp[idx2*3];
+
+			if (uctmp[idx1] < 255) {
+				uctmp[idx1]++;
+				VecAddf(v1, v1, fvec);
+			}
+			if (uctmp[idx2] < 255) {
+				uctmp[idx2]++;
+				VecAddf(v2, v2, fvec);
+			}
+		}
+
+		if (dvert) {
+			for (i = 0; i < numVerts; i++) {
+				MDeformWeight *dw = NULL;
+				float f, fm, facw, *fp, *v;
+				int k;
+				short flag = smd->flag;
+
+				v = vertexCos[i];
+				fp = &ftmp[i*3];
+
+				for (k = 0; k < dvert[i].totweight; ++k) {
+					if(dvert[i].dw[k].def_nr == defgrp_index) {
+						dw = &dvert[i].dw[k];
+						break;
+					}
+				}
+				if (!dw) continue;
+
+				f = fac * dw->weight;
+				fm = 1.0f - f;
+
+				/* fp is the sum of uctmp[i] verts, so must be averaged */
+				facw = 0.0f;
+				if (uctmp[i]) 
+					facw = f / (float)uctmp[i];
+
+				if (flag & MOD_SMOOTH_X)
+					v[0] = fm * v[0] + facw * fp[0];
+				if (flag & MOD_SMOOTH_Y)
+					v[1] = fm * v[1] + facw * fp[1];
+				if (flag & MOD_SMOOTH_Z)
+					v[2] = fm * v[2] + facw * fp[2];
+			}
+		}
+		else { /* no vertex group */
+			for (i = 0; i < numVerts; i++) {
+				float facw, *fp, *v;
+				short flag = smd->flag;
+
+				v = vertexCos[i];
+				fp = &ftmp[i*3];
+
+				/* fp is the sum of uctmp[i] verts, so must be averaged */
+				facw = 0.0f;
+				if (uctmp[i]) 
+					facw = fac / (float)uctmp[i];
+
+				if (flag & MOD_SMOOTH_X)
+					v[0] = facm * v[0] + facw * fp[0];
+				if (flag & MOD_SMOOTH_Y)
+					v[1] = facm * v[1] + facw * fp[1];
+				if (flag & MOD_SMOOTH_Z)
+					v[2] = facm * v[2] + facw * fp[2];
+			}
+
+		}
+
+		memset(ftmp, 0, 3*sizeof(float)*numVerts);
+		memset(uctmp, 0, sizeof(unsigned char)*numVerts);
+	}
+
+	MEM_freeN(ftmp);
+	MEM_freeN(uctmp);
+}
+
+static void smoothModifier_deformVerts(
+		ModifierData *md, Object *ob, DerivedMesh *derivedData,
+		float (*vertexCos)[3], int numVerts)
+{
+	DerivedMesh *dm;
+
+	if(derivedData) dm = CDDM_copy(derivedData);
+	else dm = CDDM_from_mesh(ob->data, ob);
+
+	CDDM_apply_vert_coords(dm, vertexCos);
+	CDDM_calc_normals(dm);
+
+	smoothModifier_do((SmoothModifierData *)md, ob, dm,
+		vertexCos, numVerts);
+
+	dm->release(dm);
+}
+
+static void smoothModifier_deformVertsEM(
+		ModifierData *md, Object *ob, EditMesh *editData,
+		DerivedMesh *derivedData, float (*vertexCos)[3], int numVerts)
+{
+	DerivedMesh *dm;
+
+	if(derivedData) dm = CDDM_copy(derivedData);
+	else dm = CDDM_from_editmesh(editData, ob->data);
+
+	CDDM_apply_vert_coords(dm, vertexCos);
+	CDDM_calc_normals(dm);
+
+	smoothModifier_do((SmoothModifierData *)md, ob, dm,
+		vertexCos, numVerts);
+
+	dm->release(dm);
+}
+
+/* Cast */
+
+static void castModifier_initData(ModifierData *md)
+{
+	CastModifierData *cmd = (CastModifierData*) md;
+
+	cmd->fac = 0.5f;
+	cmd->radius = 0.0f;
+	cmd->size = 0.0f;
+	cmd->flag = MOD_CAST_X | MOD_CAST_Y | MOD_CAST_Z
+	            | MOD_CAST_SIZE_FROM_RADIUS;
+	cmd->type = MOD_CAST_TYPE_SPHERE;
+	cmd->defgrp_name[0] = '\0';
+	cmd->object = NULL;
+}
+
+
+static void castModifier_copyData(ModifierData *md, ModifierData *target)
+{
+	CastModifierData *cmd = (CastModifierData*) md;
+	CastModifierData *tcmd = (CastModifierData*) target;
+
+	tcmd->fac = cmd->fac;
+	tcmd->radius = cmd->radius;
+	tcmd->size = cmd->size;
+	tcmd->flag = cmd->flag;
+	tcmd->type = cmd->type;
+	tcmd->object = cmd->object;
+	strncpy(tcmd->defgrp_name, cmd->defgrp_name, 32);
+}
+
+int castModifier_isDisabled(ModifierData *md)
+{
+	CastModifierData *cmd = (CastModifierData*) md;
+	short flag;
+	
+	flag = cmd->flag & (MOD_CAST_X|MOD_CAST_Y|MOD_CAST_Z);
+
+	if((cmd->fac == 0.0f) || flag == 0) return 1;
+
+	return 0;
+}
+
+CustomDataMask castModifier_requiredDataMask(ModifierData *md)
+{
+	CastModifierData *cmd = (CastModifierData *)md;
+	CustomDataMask dataMask = 0;
+
+	/* ask for vertexgroups if we need them */
+	if(cmd->defgrp_name[0]) dataMask |= (1 << CD_MDEFORMVERT);
+
+	return dataMask;
+}
+
+static void castModifier_foreachObjectLink(
+		ModifierData *md, Object *ob,
+		void (*walk)(void *userData, Object *ob, Object **obpoin),
+		void *userData)
+{
+	CastModifierData *cmd = (CastModifierData*) md;
+
+	walk (userData, ob, &cmd->object);
+}
+
+static void castModifier_updateDepgraph(
+		ModifierData *md, DagForest *forest, Object *ob,
+		DagNode *obNode)
+{
+	CastModifierData *cmd = (CastModifierData*) md;
+
+	if (cmd->object) {
+		DagNode *curNode = dag_get_node(forest, cmd->object);
+
+		dag_add_relation(forest, curNode, obNode, DAG_RL_OB_DATA);
+	}
+}
+
+static void castModifier_sphere_do(
+		CastModifierData *cmd, Object *ob, DerivedMesh *dm,
+		float (*vertexCos)[3], int numVerts)
+{
+	MDeformVert *dvert = NULL;
+
+	Object *ctrl_ob = NULL;
+
+	int i, defgrp_index = -1;
+	int has_radius = 0;
+	short flag, type;
+	float fac, facm, len = 0.0f;
+	float vec[3], center[3] = {0.0f, 0.0f, 0.0f};
+	float mat[4][4], imat[4][4];
+
+	fac = cmd->fac;
+	facm = 1.0f - fac;
+
+	flag = cmd->flag;
+
+	type = cmd->type; /* projection type: sphere or cylinder */
+
+	ctrl_ob = cmd->object;
+
+	/* spherify's center is {0, 0, 0} (the ob's own center in its local
+	 * space), by default, but if the user defined a control object,
+	 * we use its location, transformed to ob's local space */
+	if (ctrl_ob) {
+		if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+			Mat4Invert(ctrl_ob->imat, ctrl_ob->obmat);
+			Mat4MulMat4(mat, ob->obmat, ctrl_ob->imat);
+			Mat4Invert(imat, mat);
+		}
+
+		Mat4Invert(ob->imat, ob->obmat);
+		VECCOPY(center, ctrl_ob->obmat[3]);
+		Mat4MulVecfl(ob->imat, center);
+	}
+
+	/* now we check which options the user wants */
+
+	/* 1) (flag was checked in the "if (ctrl_ob)" block above) */
+	/* 2) cmd->radius > 0.0f: only the vertices within this radius from
+	 * the center of the effect should be deformed */
+	if (cmd->radius > FLT_EPSILON) has_radius = 1;
+
+	/* 3) if we were given a vertex group name,
+	 * only those vertices should be affected */
+	if (cmd->defgrp_name[0]) {
+		bDeformGroup *def;
+
+		for (i = 0, def = ob->defbase.first; def; def = def->next, i++) {
+			if (!strcmp(def->name, cmd->defgrp_name)) {
+				defgrp_index = i;
+				break;
+			}
+		}
+	}
+
+	if ((ob->type == OB_MESH) && dm && defgrp_index >= 0)
+		dvert = dm->getVertDataArray(dm, CD_MDEFORMVERT);
+
+	if(cmd->flag & MOD_CAST_SIZE_FROM_RADIUS) {
+		len = cmd->radius;
+	}
+	else {
+		len = cmd->size;
+	}
+
+	if(len <= 0) {
+		for (i = 0; i < numVerts; i++) {
+			len += VecLenf(center, vertexCos[i]);
+		}
+		len /= numVerts;
+
+		if (len == 0.0f) len = 10.0f;
+	}
+
+	/* ready to apply the effect, one vertex at a time;
+	 * tiny optimization: the code is separated (with parts repeated)
+	 * in two possible cases:
+	 * with or w/o a vgroup. With lots of if's in the code below,
+	 * further optimizations are possible, if needed */
+	if (dvert) { /* with a vgroup */
+		float fac_orig = fac;
+		for (i = 0; i < numVerts; i++) {
+			MDeformWeight *dw = NULL;
+			int j;
+			float tmp_co[3];
+
+			VECCOPY(tmp_co, vertexCos[i]);
+			if(ctrl_ob) {
+				if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+					Mat4MulVecfl(mat, tmp_co);
+				} else {
+					VecSubf(tmp_co, tmp_co, center);
+				}
+			}
+
+			VECCOPY(vec, tmp_co);
+
+			if (type == MOD_CAST_TYPE_CYLINDER)
+				vec[2] = 0.0f;
+
+			if (has_radius) {
+				if (VecLength(vec) > cmd->radius) continue;
+			}
+
+			for (j = 0; j < dvert[i].totweight; ++j) {
+				if(dvert[i].dw[j].def_nr == defgrp_index) {
+					dw = &dvert[i].dw[j];
+					break;
+				}
+			}
+			if (!dw) continue;
+
+			fac = fac_orig * dw->weight;
+			facm = 1.0f - fac;
+
+			Normalize(vec);
+
+			if (flag & MOD_CAST_X)
+				tmp_co[0] = fac*vec[0]*len + facm*tmp_co[0];
+			if (flag & MOD_CAST_Y)
+				tmp_co[1] = fac*vec[1]*len + facm*tmp_co[1];
+			if (flag & MOD_CAST_Z && type != MOD_CAST_TYPE_CYLINDER)
+				tmp_co[2] = fac*vec[2]*len + facm*tmp_co[2];
+
+			if(ctrl_ob) {
+				if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+					Mat4MulVecfl(imat, tmp_co);
+				} else {
+					VecAddf(tmp_co, tmp_co, center);
+				}
+			}
+
+			VECCOPY(vertexCos[i], tmp_co);
+		}
+		return;
+	}
+
+	/* no vgroup */
+	for (i = 0; i < numVerts; i++) {
+		float tmp_co[3];
+
+		VECCOPY(tmp_co, vertexCos[i]);
+		if(ctrl_ob) {
+			if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+				Mat4MulVecfl(mat, tmp_co);
+			} else {
+				VecSubf(tmp_co, tmp_co, center);
+			}
+		}
+
+		VECCOPY(vec, tmp_co);
+
+		if (type == MOD_CAST_TYPE_CYLINDER)
+			vec[2] = 0.0f;
+
+		if (has_radius) {
+			if (VecLength(vec) > cmd->radius) continue;
+		}
+
+		Normalize(vec);
+
+		if (flag & MOD_CAST_X)
+			tmp_co[0] = fac*vec[0]*len + facm*tmp_co[0];
+		if (flag & MOD_CAST_Y)
+			tmp_co[1] = fac*vec[1]*len + facm*tmp_co[1];
+		if (flag & MOD_CAST_Z && type != MOD_CAST_TYPE_CYLINDER)
+			tmp_co[2] = fac*vec[2]*len + facm*tmp_co[2];
+
+		if(ctrl_ob) {
+			if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+				Mat4MulVecfl(imat, tmp_co);
+			} else {
+				VecAddf(tmp_co, tmp_co, center);
+			}
+		}
+
+		VECCOPY(vertexCos[i], tmp_co);
+	}
+}
+
+static void castModifier_cuboid_do(
+		CastModifierData *cmd, Object *ob, DerivedMesh *dm,
+		float (*vertexCos)[3], int numVerts)
+{
+	MDeformVert *dvert = NULL;
+	Object *ctrl_ob = NULL;
+
+	int i, defgrp_index = -1;
+	int has_radius = 0;
+	short flag, type;
+	float fac, facm;
+	float min[3], max[3], bb[8][3];
+	float center[3] = {0.0f, 0.0f, 0.0f};
+	float mat[4][4], imat[4][4];
+
+	fac = cmd->fac;
+	facm = 1.0f - fac;
+
+	flag = cmd->flag;
+
+	type = cmd->type; /* projection type: sphere or cylinder */
+
+	ctrl_ob = cmd->object;
+
+	/* now we check which options the user wants */
+
+	/* 1) (flag was checked in the "if (ctrl_ob)" block above) */
+	/* 2) cmd->radius > 0.0f: only the vertices within this radius from
+	 * the center of the effect should be deformed */
+	if (cmd->radius > FLT_EPSILON) has_radius = 1;
+
+	/* 3) if we were given a vertex group name,
+	 * only those vertices should be affected */
+	if (cmd->defgrp_name[0]) {
+		bDeformGroup *def;
+
+		for (i = 0, def = ob->defbase.first; def; def = def->next, i++) {
+			if (!strcmp(def->name, cmd->defgrp_name)) {
+				defgrp_index = i;
+				break;
+			}
+		}
+	}
+
+	if ((ob->type == OB_MESH) && dm && defgrp_index >= 0)
+		dvert = dm->getVertDataArray(dm, CD_MDEFORMVERT);
+
+	if (ctrl_ob) {
+		if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+			Mat4Invert(ctrl_ob->imat, ctrl_ob->obmat);
+			Mat4MulMat4(mat, ob->obmat, ctrl_ob->imat);
+			Mat4Invert(imat, mat);
+		}
+
+		Mat4Invert(ob->imat, ob->obmat);
+		VECCOPY(center, ctrl_ob->obmat[3]);
+		Mat4MulVecfl(ob->imat, center);
+	}
+
+	if((cmd->flag & MOD_CAST_SIZE_FROM_RADIUS) && has_radius) {
+		for(i = 0; i < 3; i++) {
+			min[i] = -cmd->radius;
+			max[i] = cmd->radius;
+		}
+	} else if(!(cmd->flag & MOD_CAST_SIZE_FROM_RADIUS) && cmd->size > 0) {
+		for(i = 0; i < 3; i++) {
+			min[i] = -cmd->size;
+			max[i] = cmd->size;
+		}
+	} else {
+		/* get bound box */
+		/* We can't use the object's bound box because other modifiers
+		 * may have changed the vertex data. */
+		INIT_MINMAX(min, max);
+
+		/* Cast's center is the ob's own center in its local space,by default,
+		 * but if the user defined a control object, we use its location,
+		 * transformed to ob's local space. */
+		if (ctrl_ob) {
+			float vec[3];
+
+			/* let the center of the ctrl_ob be part of the bound box: */
+			DO_MINMAX(center, min, max);
+
+			for (i = 0; i < numVerts; i++) {
+				VecSubf(vec, vertexCos[i], center);
+				DO_MINMAX(vec, min, max);
+			}
+		}
+		else {
+			for (i = 0; i < numVerts; i++) {
+				DO_MINMAX(vertexCos[i], min, max);
+			}
+		}
+
+		/* we want a symmetric bound box around the origin */
+		if (fabs(min[0]) > fabs(max[0])) max[0] = fabs(min[0]); 
+		if (fabs(min[1]) > fabs(max[1])) max[1] = fabs(min[1]); 
+		if (fabs(min[2]) > fabs(max[2])) max[2] = fabs(min[2]);
+		min[0] = -max[0];
+		min[1] = -max[1];
+		min[2] = -max[2];
+	}
+
+	/* building our custom bounding box */
+	bb[0][0] = bb[2][0] = bb[4][0] = bb[6][0] = min[0];
+	bb[1][0] = bb[3][0] = bb[5][0] = bb[7][0] = max[0];
+	bb[0][1] = bb[1][1] = bb[4][1] = bb[5][1] = min[1];
+	bb[2][1] = bb[3][1] = bb[6][1] = bb[7][1] = max[1];
+	bb[0][2] = bb[1][2] = bb[2][2] = bb[3][2] = min[2];
+	bb[4][2] = bb[5][2] = bb[6][2] = bb[7][2] = max[2];
+
+	/* ready to apply the effect, one vertex at a time;
+	 * tiny optimization: the code is separated (with parts repeated)
+	 * in two possible cases:
+	 * with or w/o a vgroup. With lots of if's in the code below,
+	 * further optimizations are possible, if needed */
+	if (dvert) { /* with a vgroup */
+		float fac_orig = fac;
+		for (i = 0; i < numVerts; i++) {
+			MDeformWeight *dw = NULL;
+			int j, octant, coord;
+			float d[3], dmax, apex[3], fbb;
+			float tmp_co[3];
+
+			VECCOPY(tmp_co, vertexCos[i]);
+			if(ctrl_ob) {
+				if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+					Mat4MulVecfl(mat, tmp_co);
+				} else {
+					VecSubf(tmp_co, tmp_co, center);
+				}
+			}
+
+			if (has_radius) {
+				if (fabs(tmp_co[0]) > cmd->radius ||
+				    fabs(tmp_co[1]) > cmd->radius ||
+				    fabs(tmp_co[2]) > cmd->radius) continue;
+			}
+
+			for (j = 0; j < dvert[i].totweight; ++j) {
+				if(dvert[i].dw[j].def_nr == defgrp_index) {
+					dw = &dvert[i].dw[j];
+					break;
+				}
+			}
+			if (!dw) continue;
+
+			fac = fac_orig * dw->weight;
+			facm = 1.0f - fac;
+
+			/* The algo used to project the vertices to their
+			 * bounding box (bb) is pretty simple:
+			 * for each vertex v:
+			 * 1) find in which octant v is in;
+			 * 2) find which outer "wall" of that octant is closer to v;
+			 * 3) calculate factor (var fbb) to project v to that wall;
+			 * 4) project. */
+
+			/* find in which octant this vertex is in */
+			octant = 0;
+			if (tmp_co[0] > 0.0f) octant += 1;
+			if (tmp_co[1] > 0.0f) octant += 2;
+			if (tmp_co[2] > 0.0f) octant += 4;
+
+			/* apex is the bb's vertex at the chosen octant */
+			VecCopyf(apex, bb[octant]);
+
+			/* find which bb plane is closest to this vertex ... */
+			d[0] = tmp_co[0] / apex[0];
+			d[1] = tmp_co[1] / apex[1];
+			d[2] = tmp_co[2] / apex[2];
+
+			/* ... (the closest has the higher (closer to 1) d value) */
+			dmax = d[0];
+			coord = 0;
+			if (d[1] > dmax) {
+				dmax = d[1];
+				coord = 1;
+			}
+			if (d[2] > dmax) {
+				/* dmax = d[2]; */ /* commented, we don't need it */
+				coord = 2;
+			}
+
+			/* ok, now we know which coordinate of the vertex to use */
+
+			if (fabs(tmp_co[coord]) < FLT_EPSILON) /* avoid division by zero */
+				continue;
+
+			/* finally, this is the factor we wanted, to project the vertex
+			 * to its bounding box (bb) */
+			fbb = apex[coord] / tmp_co[coord];
+
+			/* calculate the new vertex position */
+			if (flag & MOD_CAST_X)
+				tmp_co[0] = facm * tmp_co[0] + fac * tmp_co[0] * fbb;
+			if (flag & MOD_CAST_Y)
+				tmp_co[1] = facm * tmp_co[1] + fac * tmp_co[1] * fbb;
+			if (flag & MOD_CAST_Z)
+				tmp_co[2] = facm * tmp_co[2] + fac * tmp_co[2] * fbb;
+
+			if(ctrl_ob) {
+				if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+					Mat4MulVecfl(imat, tmp_co);
+				} else {
+					VecAddf(tmp_co, tmp_co, center);
+				}
+			}
+
+			VECCOPY(vertexCos[i], tmp_co);
+		}
+		return;
+	}
+
+	/* no vgroup (check previous case for comments about the code) */
+	for (i = 0; i < numVerts; i++) {
+		int octant, coord;
+		float d[3], dmax, fbb, apex[3];
+		float tmp_co[3];
+
+		VECCOPY(tmp_co, vertexCos[i]);
+		if(ctrl_ob) {
+			if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+				Mat4MulVecfl(mat, tmp_co);
+			} else {
+				VecSubf(tmp_co, tmp_co, center);
+			}
+		}
+
+		if (has_radius) {
+			if (fabs(tmp_co[0]) > cmd->radius ||
+			    fabs(tmp_co[1]) > cmd->radius ||
+			    fabs(tmp_co[2]) > cmd->radius) continue;
+		}
+
+		octant = 0;
+		if (tmp_co[0] > 0.0f) octant += 1;
+		if (tmp_co[1] > 0.0f) octant += 2;
+		if (tmp_co[2] > 0.0f) octant += 4;
+
+		VecCopyf(apex, bb[octant]);
+
+		d[0] = tmp_co[0] / apex[0];
+		d[1] = tmp_co[1] / apex[1];
+		d[2] = tmp_co[2] / apex[2];
+
+		dmax = d[0];
+		coord = 0;
+		if (d[1] > dmax) {
+			dmax = d[1];
+			coord = 1;
+		}
+		if (d[2] > dmax) {
+			/* dmax = d[2]; */ /* commented, we don't need it */
+			coord = 2;
+		}
+
+		if (fabs(tmp_co[coord]) < FLT_EPSILON)
+			continue;
+
+		fbb = apex[coord] / tmp_co[coord];
+
+		if (flag & MOD_CAST_X)
+			tmp_co[0] = facm * tmp_co[0] + fac * tmp_co[0] * fbb;
+		if (flag & MOD_CAST_Y)
+			tmp_co[1] = facm * tmp_co[1] + fac * tmp_co[1] * fbb;
+		if (flag & MOD_CAST_Z)
+			tmp_co[2] = facm * tmp_co[2] + fac * tmp_co[2] * fbb;
+
+		if(ctrl_ob) {
+			if(flag & MOD_CAST_USE_OB_TRANSFORM) {
+				Mat4MulVecfl(imat, tmp_co);
+			} else {
+				VecAddf(tmp_co, tmp_co, center);
+			}
+		}
+
+		VECCOPY(vertexCos[i], tmp_co);
+	}
+}
+
+static void castModifier_deformVerts(
+		ModifierData *md, Object *ob, DerivedMesh *derivedData,
+		float (*vertexCos)[3], int numVerts)
+{
+	DerivedMesh *dm = derivedData;
+	CastModifierData *cmd = (CastModifierData *)md;
+
+	if (!dm && ob->type == OB_MESH)
+		dm = CDDM_from_mesh(ob->data, ob);
+
+	if (cmd->type == MOD_CAST_TYPE_CUBOID) {
+		castModifier_cuboid_do(cmd, ob, dm, vertexCos, numVerts);
+	} else { /* MOD_CAST_TYPE_SPHERE or MOD_CAST_TYPE_CYLINDER */
+		castModifier_sphere_do(cmd, ob, dm, vertexCos, numVerts);
+	}
+
+	if (!derivedData && dm) dm->release(dm);
+}
+
+static void castModifier_deformVertsEM(
+		ModifierData *md, Object *ob, EditMesh *editData,
+		DerivedMesh *derivedData, float (*vertexCos)[3], int numVerts)
+{
+	DerivedMesh *dm = derivedData;
+	CastModifierData *cmd = (CastModifierData *)md;
+
+	if (!dm && ob->type == OB_MESH)
+		dm = CDDM_from_editmesh(editData, ob->data);
+
+	if (cmd->type == MOD_CAST_TYPE_CUBOID) {
+		castModifier_cuboid_do(cmd, ob, dm, vertexCos, numVerts);
+	} else { /* MOD_CAST_TYPE_SPHERE or MOD_CAST_TYPE_CYLINDER */
+		castModifier_sphere_do(cmd, ob, dm, vertexCos, numVerts);
+	}
+
+	if (!derivedData && dm) dm->release(dm);
+}
+
 /* Wave */

 static void waveModifier_initData(ModifierData *md) 
@@ -4130,6 +4933,28 @@ ModifierTypeInfo *modifierType_getInfo(ModifierType type)
 		mti->copyData = decimateModifier_copyData;
 		mti->applyModifier = decimateModifier_applyModifier;

+		mti = INIT_TYPE(Smooth);
+		mti->type = eModifierTypeType_OnlyDeform;
+		mti->flags = eModifierTypeFlag_AcceptsMesh
+		             | eModifierTypeFlag_SupportsEditmode;
+		mti->initData = smoothModifier_initData;
+		mti->copyData = smoothModifier_copyData;
+		mti->requiredDataMask = smoothModifier_requiredDataMask;
+		mti->deformVerts = smoothModifier_deformVerts;
+		mti->deformVertsEM = smoothModifier_deformVertsEM;
+
+		mti = INIT_TYPE(Cast);
+		mti->type = eModifierTypeType_OnlyDeform;
+		mti->flags = eModifierTypeFlag_AcceptsCVs
+		             | eModifierTypeFlag_SupportsEditmode;
+		mti->initData = castModifier_initData;
+		mti->copyData = castModifier_copyData;
+		mti->requiredDataMask = castModifier_requiredDataMask;
+		mti->foreachObjectLink = castModifier_foreachObjectLink;
+		mti->updateDepgraph = castModifier_updateDepgraph;
+		mti->deformVerts = castModifier_deformVerts;
+		mti->deformVertsEM = castModifier_deformVertsEM;
+
 		mti = INIT_TYPE(Wave);
 		mti->type = eModifierTypeType_OnlyDeform;
 		mti->flags = eModifierTypeFlag_AcceptsCVs
--- a/source/blender/makesdna/DNA_modifier_types.h
+++ b/source/blender/makesdna/DNA_modifier_types.h
@@ -26,6 +26,8 @@ typedef enum ModifierType {
 	eModifierType_EdgeSplit,
 	eModifierType_Displace,
 	eModifierType_UVProject,
+	eModifierType_Smooth,
+	eModifierType_Cast,
 	NUM_MODIFIER_TYPES
 } ModifierType;

@@ -233,6 +235,42 @@ typedef struct DecimateModifierData {
 	int faceCount;
 } DecimateModifierData;

+/* Smooth modifier flags */
+#define MOD_SMOOTH_X 1<<1
+#define MOD_SMOOTH_Y 1<<2
+#define MOD_SMOOTH_Z 1<<3
+
+typedef struct SmoothModifierData {
+	ModifierData modifier;
+	float fac;
+	char defgrp_name[32];
+	short flag, repeat;
+
+} SmoothModifierData;
+
+/* Cast modifier flags */
+#define MOD_CAST_X 1<<1
+#define MOD_CAST_Y 1<<2
+#define MOD_CAST_Z 1<<3
+#define MOD_CAST_USE_OB_TRANSFORM 1<<4
+#define MOD_CAST_SIZE_FROM_RADIUS 1<<5
+
+/* Cast modifier projection types */
+#define MOD_CAST_TYPE_SPHERE 0
+#define MOD_CAST_TYPE_CYLINDER 1
+#define MOD_CAST_TYPE_CUBOID 2
+
+typedef struct CastModifierData {
+	ModifierData modifier;
+
+	struct Object *object;
+	float fac;
+	float radius;
+	float size;
+	char defgrp_name[32];
+	short flag, type;
+} CastModifierData;
+
 enum {
 	MOD_WAV_MAP_LOCAL,
 	MOD_WAV_MAP_GLOBAL,
--- a/source/blender/python/api2_2x/Modifier.c
+++ b/source/blender/python/api2_2x/Modifier.c
@@ -67,14 +67,18 @@ enum mod_constants {
 	
 	/*GENERIC*/
 	EXPP_MOD_OBJECT, /*ARMATURE, LATTICE, CURVE, BOOLEAN, ARRAY*/
-	EXPP_MOD_VERTGROUP, /*ARMATURE, LATTICE, CURVE*/
+	EXPP_MOD_VERTGROUP, /*ARMATURE, LATTICE, CURVE, SMOOTH, CAST*/
 	EXPP_MOD_LIMIT, /*ARRAY, MIRROR*/
 	EXPP_MOD_FLAG, /*MIRROR, WAVE*/
 	EXPP_MOD_COUNT, /*DECIMATOR, ARRAY*/
 	EXPP_MOD_LENGTH, /*BUILD, ARRAY*/
+	EXPP_MOD_FACTOR, /*SMOOTH, CAST*/
+	EXPP_MOD_ENABLE_X, /*SMOOTH, CAST*/
+	EXPP_MOD_ENABLE_Y, /*SMOOTH, CAST*/
+	EXPP_MOD_ENABLE_Z, /*SMOOTH, CAST*/
+	EXPP_MOD_TYPES, /*SUBSURF, CAST*/
 	
 	/*SUBSURF SPESIFIC*/
-	EXPP_MOD_TYPES,
 	EXPP_MOD_LEVELS,
 	EXPP_MOD_RENDLEVELS,
 	EXPP_MOD_OPTIMAL,
@@ -126,7 +130,16 @@ enum mod_constants {
 	EXPP_MOD_STRENGTH,
 	EXPP_MOD_TEXTURE,
 	EXPP_MOD_MAPPING,
-	EXPP_MOD_DIRECTION
+	EXPP_MOD_DIRECTION,
+
+	/* SMOOTH */
+	EXPP_MOD_REPEAT,
+
+	/* CAST */
+	EXPP_MOD_RADIUS,
+	EXPP_MOD_SIZE,
+	EXPP_MOD_USE_OB_TRANSFORM,
+	EXPP_MOD_SIZE_FROM_RADIUS
 	
 	/* yet to be implemented */
 	/* EXPP_MOD_HOOK_,*/
@@ -548,6 +561,133 @@ static int decimate_setter( BPy_Modifier *self, int type, PyObject *value )
 	return EXPP_ReturnIntError( PyExc_KeyError, "key not found" );
 }

+static PyObject *smooth_getter( BPy_Modifier * self, int type )
+{
+	SmoothModifierData *md = (SmoothModifierData *)(self->md);
+
+	switch( type ) {
+	case EXPP_MOD_FACTOR:
+		return PyFloat_FromDouble( (double)md->fac );
+	case EXPP_MOD_REPEAT:
+		return PyInt_FromLong( (long)md->repeat );
+	case EXPP_MOD_VERTGROUP:
+		return PyString_FromString( md->defgrp_name ) ;
+	case EXPP_MOD_ENABLE_X:
+		return EXPP_getBitfield( &md->flag, MOD_SMOOTH_X, 'h' );
+	case EXPP_MOD_ENABLE_Y:
+		return EXPP_getBitfield( &md->flag, MOD_SMOOTH_Y, 'h' );
+	case EXPP_MOD_ENABLE_Z:
+		return EXPP_getBitfield( &md->flag, MOD_SMOOTH_Z, 'h' );
+	default:
+		return EXPP_ReturnPyObjError( PyExc_KeyError, "key not found" );
+	}
+}
+
+static int smooth_setter( BPy_Modifier *self, int type, PyObject *value )
+{
+	SmoothModifierData *md = (SmoothModifierData *)(self->md);
+
+	switch( type ) {
+	case EXPP_MOD_FACTOR:
+		return EXPP_setFloatClamped( value, &md->fac, -10.0, 10.0 );
+	case EXPP_MOD_REPEAT:
+		return EXPP_setIValueRange( value, &md->repeat, 0, 30, 'h' );
+	case EXPP_MOD_VERTGROUP: {
+		char *name = PyString_AsString( value );
+		if( !name ) return EXPP_ReturnIntError( PyExc_TypeError, "expected string arg" );
+		BLI_strncpy( md->defgrp_name, name, sizeof( md->defgrp_name ) );
+		return 0;
+	}
+	case EXPP_MOD_ENABLE_X:
+		return EXPP_setBitfield( value, &md->flag, MOD_SMOOTH_X, 'h' ); 
+	case EXPP_MOD_ENABLE_Y:
+		return EXPP_setBitfield( value, &md->flag, MOD_SMOOTH_Y, 'h' ); 
+	case EXPP_MOD_ENABLE_Z:
+		return EXPP_setBitfield( value, &md->flag, MOD_SMOOTH_Z, 'h' ); 
+	default:
+		return EXPP_ReturnIntError( PyExc_KeyError, "key not found" );
+	}
+}
+
+static PyObject *cast_getter( BPy_Modifier * self, int type )
+{
+	CastModifierData *md = (CastModifierData *)(self->md);
+
+	switch( type ) {
+	case EXPP_MOD_TYPES:
+		return PyInt_FromLong( (long)md->type );
+	case EXPP_MOD_FACTOR:
+		return PyFloat_FromDouble( (double)md->fac );
+	case EXPP_MOD_RADIUS:
+		return PyFloat_FromDouble( (double)md->radius );
+	case EXPP_MOD_SIZE:
+		return PyFloat_FromDouble( (double)md->size );
+	case EXPP_MOD_OBJECT:
+		return Object_CreatePyObject( md->object );
+	case EXPP_MOD_VERTGROUP:
+		return PyString_FromString( md->defgrp_name ) ;
+	case EXPP_MOD_ENABLE_X:
+		return EXPP_getBitfield( &md->flag, MOD_CAST_X, 'h' );
+	case EXPP_MOD_ENABLE_Y:
+		return EXPP_getBitfield( &md->flag, MOD_CAST_Y, 'h' );
+	case EXPP_MOD_ENABLE_Z:
+		return EXPP_getBitfield( &md->flag, MOD_CAST_Z, 'h' );
+	case EXPP_MOD_USE_OB_TRANSFORM:
+		return EXPP_getBitfield( &md->flag, MOD_CAST_USE_OB_TRANSFORM, 'h' );
+	case EXPP_MOD_SIZE_FROM_RADIUS:
+		return EXPP_getBitfield( &md->flag, MOD_CAST_SIZE_FROM_RADIUS, 'h' );
+	default:
+		return EXPP_ReturnPyObjError( PyExc_KeyError, "key not found" );
+	}
+}
+
+static int cast_setter( BPy_Modifier *self, int type, PyObject *value )
+{
+	CastModifierData *md = (CastModifierData *)(self->md);
+
+	switch( type ) {
+	case EXPP_MOD_TYPES:
+		return EXPP_setIValueRange( value, &md->type, 0, MOD_CAST_TYPE_CUBOID, 'h' );
+	case EXPP_MOD_FACTOR:
+		return EXPP_setFloatClamped( value, &md->fac, -10.0, 10.0 );
+	case EXPP_MOD_RADIUS:
+		return EXPP_setFloatClamped( value, &md->radius, 0.0, 100.0 );
+	case EXPP_MOD_SIZE:
+		return EXPP_setFloatClamped( value, &md->size, 0.0, 100.0 );
+	case EXPP_MOD_OBJECT: {
+		Object *ob_new=NULL;
+		if (value == Py_None) {
+			md->object = NULL;
+		} else if (BPy_Object_Check( value )) {
+			ob_new = ((( BPy_Object * )value)->object);
+			md->object = ob_new;
+		} else {
+			return EXPP_ReturnIntError( PyExc_TypeError,
+				"Expected an Object or None value" );
+		}
+		return 0;
+	}
+	case EXPP_MOD_VERTGROUP: {
+		char *name = PyString_AsString( value );
+		if( !name ) return EXPP_ReturnIntError( PyExc_TypeError, "expected string arg" );
+		BLI_strncpy( md->defgrp_name, name, sizeof( md->defgrp_name ) );
+		return 0;
+	}
+	case EXPP_MOD_ENABLE_X:
+		return EXPP_setBitfield( value, &md->flag, MOD_CAST_X, 'h' ); 
+	case EXPP_MOD_ENABLE_Y:
+		return EXPP_setBitfield( value, &md->flag, MOD_CAST_Y, 'h' ); 
+	case EXPP_MOD_ENABLE_Z:
+		return EXPP_setBitfield( value, &md->flag, MOD_CAST_Z, 'h' ); 
+	case EXPP_MOD_USE_OB_TRANSFORM:
+		return EXPP_setBitfield( value, &md->flag, MOD_CAST_USE_OB_TRANSFORM, 'h' ); 
+	case EXPP_MOD_SIZE_FROM_RADIUS:
+		return EXPP_setBitfield( value, &md->flag, MOD_CAST_SIZE_FROM_RADIUS, 'h' ); 
+	default:
+		return EXPP_ReturnIntError( PyExc_KeyError, "key not found" );
+	}
+}
+
 static PyObject *wave_getter( BPy_Modifier * self, int type )
 {
 	WaveModifierData *md = (WaveModifierData *)(self->md);
@@ -866,6 +1006,10 @@ static PyObject *Modifier_getData( BPy_Modifier * self, PyObject * key )
 				return mirror_getter( self, setting );
 			case eModifierType_Decimate:
 				return decimate_getter( self, setting );
+			case eModifierType_Smooth:
+				return smooth_getter( self, setting );
+			case eModifierType_Cast:
+				return cast_getter( self, setting );
 			case eModifierType_Wave:
 				return wave_getter( self, setting );
 			case eModifierType_Boolean:
@@ -934,6 +1078,10 @@ static int Modifier_setData( BPy_Modifier * self, PyObject * key,
 			return array_setter( self, key_int, arg );
 		case eModifierType_Decimate:
 			return decimate_setter( self, key_int, arg );
+		case eModifierType_Smooth:
+			return smooth_setter( self, key_int, arg );
+		case eModifierType_Cast:
+			return cast_setter( self, key_int, arg );
 		case eModifierType_Wave:
 			return wave_setter( self, key_int, arg );
 		case eModifierType_Boolean:
@@ -1347,6 +1495,10 @@ static PyObject *M_Modifier_TypeDict( void )
 				PyInt_FromLong( eModifierType_Array ) );
 		PyConstant_Insert( d, "EDGESPLIT",
 				PyInt_FromLong( eModifierType_EdgeSplit ) );
+		PyConstant_Insert( d, "SMOOTH",
+				PyInt_FromLong( eModifierType_Smooth ) );
+		PyConstant_Insert( d, "CAST",
+				PyInt_FromLong( eModifierType_Cast ) );
 	}
 	return S;
 }
@@ -1407,6 +1559,14 @@ for var in st.replace(',','').split('\n'):
 				PyInt_FromLong( EXPP_MOD_COUNT ) );
 			PyConstant_Insert( d, "LENGTH", 
 				PyInt_FromLong( EXPP_MOD_LENGTH ) );
+			PyConstant_Insert( d, "FACTOR", 
+				PyInt_FromLong( EXPP_MOD_FACTOR ) );
+			PyConstant_Insert( d, "ENABLE_X", 
+				PyInt_FromLong( EXPP_MOD_ENABLE_X ) );
+			PyConstant_Insert( d, "ENABLE_Y", 
+				PyInt_FromLong( EXPP_MOD_ENABLE_Y ) );
+			PyConstant_Insert( d, "ENABLE_Z", 
+				PyInt_FromLong( EXPP_MOD_ENABLE_Z ) );
 			PyConstant_Insert( d, "TYPES", 
 				PyInt_FromLong( EXPP_MOD_TYPES ) );
 			PyConstant_Insert( d, "LEVELS", 
@@ -1471,6 +1631,22 @@ for var in st.replace(',','').split('\n'):
 				PyInt_FromLong( EXPP_MOD_MID_LEVEL ) );
 			PyConstant_Insert( d, "STRENGTH",
 				PyInt_FromLong( EXPP_MOD_STRENGTH ) );
+			PyConstant_Insert( d, "TEXTURE", 
+				PyInt_FromLong( EXPP_MOD_TEXTURE ) );
+			PyConstant_Insert( d, "MAPPING", 
+				PyInt_FromLong( EXPP_MOD_MAPPING ) );
+			PyConstant_Insert( d, "DIRECTION", 
+				PyInt_FromLong( EXPP_MOD_DIRECTION ) );
+			PyConstant_Insert( d, "REPEAT", 
+				PyInt_FromLong( EXPP_MOD_REPEAT ) );
+			PyConstant_Insert( d, "RADIUS", 
+				PyInt_FromLong( EXPP_MOD_RADIUS ) );
+			PyConstant_Insert( d, "SIZE", 
+				PyInt_FromLong( EXPP_MOD_SIZE ) );
+			PyConstant_Insert( d, "USE_OB_TRANSFORM", 
+				PyInt_FromLong( EXPP_MOD_USE_OB_TRANSFORM ) );
+			PyConstant_Insert( d, "SIZE_FROM_RADIUS", 
+				PyInt_FromLong( EXPP_MOD_SIZE_FROM_RADIUS ) );
 			/*End Auto generated code*/
 	}
 	return S;
--- a/source/blender/python/api2_2x/doc/Modifier.py
+++ b/source/blender/python/api2_2x/doc/Modifier.py
@@ -4,7 +4,7 @@
 The Blender.Modifier submodule

 B{New}: 
-  -  provides access to Blender's modifier stack
+  -  Supports the new Cast and Smooth modifiers.

 This module provides access to the Modifier Data in Blender.

@@ -57,6 +57,9 @@ Example::
    - SUBSURF - type value for Subsurf modifiers
    - WAVE - type value for Wave modifiers
    - EDGESPLIT - type value for Edge Split modifiers
+    - DISPLACE - type value for Displace modifiers
+    - SMOOTH - type value for Smooth modifiers
+    - CAST - type value for Cast modifiers

@type Settings: readonly dictionary
@var Settings: Constant Modifier dict used for changing modifier settings.
@@ -66,13 +69,17 @@ Example::
 	- ONCAGE - Used for all modifiers (bool) If true, the modifier is enabled for the editing cage during edit mode.

 	- OBJECT - Used for Armature, Lattice, Curve, Boolean and Array (Object)
-	- VERTGROUP - Used for Armature, Lattice and Curve (String)
+	- VERTGROUP - Used for Armature, Lattice, Curve, Smooth and Cast (String)
 	- LIMIT - Array and Mirror (float [0.0 - 1.0])
 	- FLAG - Mirror and Wave (int)
 	- COUNT - Decimator Polycount (readonly) and Array (int)
 	- LENGTH - Build [1.0-300000.0] and Array [0.0 - 10000.0] (float)
-	
-	- TYPES - Used for Subsurf only. Determines the subdivision algorithm. Integer: 0 = Catmull-Clark; 1 = simple subdivision.
+	- FACTOR - Smooth [-10.0, 10.0] and Cast [-10.0, 10.0] (float)
+	- ENABLE_X = Smooth and Cast (bool, default: True)
+	- ENABLE_Y = Smooth and Cast (bool, default: True)
+	- ENABLE_Z = Smooth and Cast (bool, default: True)
+	- TYPES - Subsurf and Cast. For Subsurf it determines the subdivision algorithm - (int): 0 = Catmull-Clark; 1 = simple subdivision. For Cast it determines the shape to deform to = (int): 0 = Sphere; 1 = Cylinder; 2 = Cuboid
+
 	- LEVELS - Used for Subsurf only (int [0 - 6]). The number of subdivision levels used for interactive display.
 	- RENDLEVELS - Used for Subsurf only (int [0 - 6]). The number of subdivision levels used for rendering.
 	- OPTIMAL - Used for Subsurf only (bool). Enables Optimal Draw.
@@ -109,6 +116,18 @@ Example::
 	- EDGESPLIT_ANGLE - Used for edge split only (float 0.0 - 180)
 	- EDGESPLIT_FROM_ANGLE - Used for edge split only, should the modifier use the edge angle (bool)
 	- EDGESPLIT_FROM_SHARP - Used for edge split only, should the modifier use the edge sharp flag (bool)
+
+	- UVLAYER - Used for Displace only
+	- MID_LEVEL - Used for Displace only (float [0.0, 1.0], default: 0.5)
+	- STRENGTH - Used for Displace only (float [-1000.0, 1000.0, default: 1.0)
+	- TEXTURE - Used for Displace only (string)
+	- MAPPING - Used for Displace only
+	- DIRECTION - Used for Displace only
+
+	- REPEAT - Used for Smooth only (int [0, 30], default: 1)
+
+	- RADIUS - Used for Cast only (float [0.0, 100.0], default: 0.0)
+	- USE_OB_SCALE - Used for Cast only (bool, default: False)
 """

 class ModSeq:
--- a/source/blender/src/buttons_editing.c
+++ b/source/blender/src/buttons_editing.c
@@ -1601,6 +1601,11 @@ static void draw_modifier(uiBlock *block, Object *ob, ModifierData *md, int *xco
 			height = 114 + ((UVProjectModifierData *)md)->num_projectors * 19;
 		} else if (md->type==eModifierType_Decimate) {
 			height = 48;
+		} else if (md->type==eModifierType_Smooth) {
+			height = 86;
+		} else if (md->type==eModifierType_Cast) {
+			height = 124;
+			height += 19;
 		} else if (md->type==eModifierType_Wave) {
 			WaveModifierData *wmd = (WaveModifierData *)md;
 			height = 280;
@@ -1825,6 +1830,37 @@ static void draw_modifier(uiBlock *block, Object *ob, ModifierData *md, int *xco
 			uiDefButF(block, NUM, B_MODIFIER_RECALC, "Ratio:",	lx,(cy-=19),buttonWidth,19, &dmd->percent, 0.0, 1.0, 10, 0, "Defines the percentage of triangles to reduce to");
 			sprintf(str, "Face Count: %d", dmd->faceCount);
 			uiDefBut(block, LABEL, 1, str,	lx, (cy-=19), 160,19, NULL, 0.0, 0.0, 0, 0, "Displays the current number of faces in the decimated mesh");
+		} else if (md->type==eModifierType_Smooth) {
+			SmoothModifierData *smd = (SmoothModifierData*) md;
+
+			uiDefButBitS(block, TOG, MOD_SMOOTH_X, B_MODIFIER_RECALC, "X",		lx,(cy-=19),45,19, &smd->flag, 0, 0, 0, 0, "Enable X axis smoothing");
+			uiDefButBitS(block, TOG, MOD_SMOOTH_Y, B_MODIFIER_RECALC, "Y",		lx+45,cy,45,19, &smd->flag, 0, 0, 0, 0, "Enable Y axis smoothing");
+			uiDefButBitS(block, TOG, MOD_SMOOTH_Z, B_MODIFIER_RECALC, "Z",		lx+90,cy,45,19, &smd->flag, 0, 0, 0, 0, "Enable Z axis smoothing");
+
+			uiDefButF(block, NUM, B_MODIFIER_RECALC, "Factor:",	lx,(cy-=19),buttonWidth, 19, &smd->fac, -10.0, 10.0, 0.5, 0, "Define the amount of smoothing, from 0.0 to 1.0 (lower / higher values can deform the mesh)");
+			uiDefButS(block, NUM, B_MODIFIER_RECALC, "Repeat:",	lx,(cy-=19),buttonWidth, 19, &smd->repeat, 0.0, 30.0, 1, 0, "Number of smoothing iterations");
+			but=uiDefBut(block, TEX, B_MODIFIER_RECALC, "VGroup: ",				  lx, (cy-=19), buttonWidth,19, &smd->defgrp_name, 0.0, 31.0, 0, 0, "Vertex Group name to define which vertices are affected");
+		} else if (md->type==eModifierType_Cast) {
+			CastModifierData *cmd = (CastModifierData*) md;
+
+			char casttypemenu[]="Projection Type%t|Sphere%x0|Cylinder%x1|Cuboid%x2";
+			uiDefButS(block, MENU, B_MODIFIER_RECALC, casttypemenu,		lx,(cy-=19),buttonWidth - 30,19, &cmd->type, 0, 0, 0, 0, "Projection type to apply");
+			uiDefButBitS(block, TOG, MOD_CAST_X, B_MODIFIER_RECALC, "X",		lx,(cy-=19),45,19, &cmd->flag, 0, 0, 0, 0, "Enable (local) X axis deformation");
+			uiDefButBitS(block, TOG, MOD_CAST_Y, B_MODIFIER_RECALC, "Y",		lx+45,cy,45,19, &cmd->flag, 0, 0, 0, 0, "Enable (local) Y axis deformation");
+			if (cmd->type != MOD_CAST_TYPE_CYLINDER) {
+				uiDefButBitS(block, TOG, MOD_CAST_Z, B_MODIFIER_RECALC, "Z",		lx+90,cy,45,19, &cmd->flag, 0, 0, 0, 0, "Enable (local) Z axis deformation");
+			}
+			uiDefButF(block, NUM, B_MODIFIER_RECALC, "Factor:",	lx,(cy-=19),buttonWidth, 19, &cmd->fac, -10.0, 10.0, 5, 0, "Define the amount of deformation");
+			uiDefButF(block, NUM, B_MODIFIER_RECALC, "Radius:",	lx,(cy-=19),buttonWidth, 19, &cmd->radius, 0.0, 100.0, 10.0, 0, "Only deform vertices within this distance from the center of the effect (leave as 0 for infinite)");
+			uiDefButF(block, NUM, B_MODIFIER_RECALC, "Size:",	lx,(cy-=19),buttonWidth, 19, &cmd->size, 0.0, 100.0, 10.0, 0, "Size of projection shape (leave as 0 for auto)");
+			uiDefButBitS(block, TOG, MOD_CAST_SIZE_FROM_RADIUS, B_MODIFIER_RECALC, "From radius",		lx+buttonWidth,cy,80,19, &cmd->flag, 0, 0, 0, 0, "Use radius as size of projection shape (0 = auto)");
+			if (ob->type == OB_MESH) {
+				but=uiDefBut(block, TEX, B_MODIFIER_RECALC, "VGroup: ",				  lx, (cy-=19), buttonWidth,19, &cmd->defgrp_name, 0.0, 31.0, 0, 0, "Vertex Group name to define which vertices are affected");
+			}
+			uiDefIDPoinBut(block, test_obpoin_but, ID_OB, B_CHANGEDEP, "Ob: ", lx,(cy-=19), buttonWidth,19, &cmd->object, "Control object: if available, its location determines the center of the effect");
+			if(cmd->object) {
+				uiDefButBitS(block, TOG, MOD_CAST_USE_OB_TRANSFORM, B_MODIFIER_RECALC, "Use transform",		lx+buttonWidth,cy,80,19, &cmd->flag, 0, 0, 0, 0, "Use object transform to control projection shape");
+			}
 		} else if (md->type==eModifierType_Wave) {
 			WaveModifierData *wmd = (WaveModifierData*) md;
 			uiDefButBitS(block, TOG, WAV_X, B_MODIFIER_RECALC, "X",		lx,(cy-=19),45,19, &wmd->flag, 0, 0, 0, 0, "Enable X axis motion");