diff options
author | Andre Susano Pinto <andresusanopinto@gmail.com> | 2008-08-04 17:12:35 +0400 |
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committer | Andre Susano Pinto <andresusanopinto@gmail.com> | 2008-08-04 17:12:35 +0400 |
commit | 919eba04de19fbf5edbfdf3d4cbfec446645e5ac (patch) | |
tree | 0190c951da3134f64b2164374826dd25545b8bfc /source/blender/blenkernel/intern/simple_deform.c | |
parent | d786fead104fc4ce1a42286631fb74a3b0dfd620 (diff) |
SimpleDeform modifications:
* Added "Lock axis" options on taper and strech/squash (suggested by ZanQdo)
* Better control of deform factor (suggested by ZanQdo)
* Added eModifierTypeFlag_AcceptsCVs (so it now accepts both curves and meshes)
Diffstat (limited to 'source/blender/blenkernel/intern/simple_deform.c')
-rw-r--r-- | source/blender/blenkernel/intern/simple_deform.c | 99 |
1 files changed, 32 insertions, 67 deletions
diff --git a/source/blender/blenkernel/intern/simple_deform.c b/source/blender/blenkernel/intern/simple_deform.c index 86fef7208a1..20cba28ab5a 100644 --- a/source/blender/blenkernel/intern/simple_deform.c +++ b/source/blender/blenkernel/intern/simple_deform.c @@ -40,7 +40,9 @@ #include <math.h> -static void axis_limit(int axis, const float limits[2], float *co, float *dcut) +//Clamps/Limits the given coordinate to: limits[0] <= co[axis] <= limits[1] +//The ammount of clamp is saved on dcut +static void axis_limit(int axis, const float limits[2], float co[3], float dcut[3]) { float val = co[axis]; if(limits[0] > val) val = limits[0]; @@ -50,10 +52,9 @@ static void axis_limit(int axis, const float limits[2], float *co, float *dcut) co[axis] = val; } -static void simpleDeform_tapperXY(const float factor, const float *dcut, float *co) +static void simpleDeform_taper(const float factor, const float dcut[3], float *co) { float x = co[0], y = co[1], z = co[2]; - float scale = z*factor; co[0] = x + x*scale; @@ -62,13 +63,13 @@ static void simpleDeform_tapperXY(const float factor, const float *dcut, float * if(dcut) { - co[0] += dcut[0]*scale; - co[1] += dcut[1]*scale; + co[0] += dcut[0]; + co[1] += dcut[1]; co[2] += dcut[2]; } } -static void simpleDeform_strech(const float factor, const float dcut[3], float *co) +static void simpleDeform_stretch(const float factor, const float dcut[3], float *co) { float x = co[0], y = co[1], z = co[2]; float scale; @@ -82,46 +83,9 @@ static void simpleDeform_strech(const float factor, const float dcut[3], float * if(dcut) { - co[0] += dcut[0]*scale; - co[1] += dcut[0]*scale; - co[2] += dcut[2]; - } -} - -static void simpleDeform_squash(const float factor, const float dcut[3], float *co) -{ - float x = co[0], y = co[1], z = co[2]; - float scale; - - scale = z*factor; - scale = -scale*scale; - - co[0] += x+x*scale; - co[1] += y+y*scale; - - if(dcut) - { - co[0] += dcut[0]*scale; - co[1] += dcut[0]*scale; - co[2] += dcut[2]; - } -} - -static void simpleDeform_tapperX(const float factor, const float *dcut, float *co) -{ - float x = co[0], y = co[1], z = co[2]; - - float scale = z*factor; - - co[0] = x+ x*scale; - co[1] = y; - co[2] = z; - - if(dcut) - { - co[0] += dcut[0]*scale; + co[0] += dcut[0]; co[1] += dcut[1]; - co[2] += dcut[2]; + co[2] += dcut[2]; } } @@ -179,6 +143,7 @@ void SimpleDeformModifier_do(SimpleDeformModifierData *smd, struct Object *ob, s int i; float (*ob2mod)[4] = NULL, (*mod2ob)[4] = NULL; float tmp_matrix[2][4][4]; + static const float lock_axis[2] = {0.0f, 0.0f}; int vgroup = get_named_vertexgroup_num(ob, smd->vgroup_name); @@ -205,41 +170,41 @@ void SimpleDeformModifier_do(SimpleDeformModifierData *smd, struct Object *ob, s { float co[3], dcut[3]; float weight = vertexgroup_get_vertex_weight(dvert, i, vgroup); + float factor = smd->factor; if(weight == 0) continue; if(ob2mod) Mat4MulVecfl(ob2mod, vertexCos[i]); - dcut[0] = dcut[1] = dcut[2] = 0.0f; VECCOPY(co, vertexCos[i]); + dcut[0] = dcut[1] = dcut[2] = 0.0f; + if(smd->axis & MOD_SIMPLEDEFORM_LOCK_AXIS_X) axis_limit(0, lock_axis, co, dcut); + if(smd->axis & MOD_SIMPLEDEFORM_LOCK_AXIS_Y) axis_limit(1, lock_axis, co, dcut); + switch(smd->mode) { case MOD_SIMPLEDEFORM_MODE_TWIST: - axis_limit(2, smd->factor+1, co, dcut); - simpleDeform_twist (smd->factor[0], dcut, co); - break; + axis_limit(2, smd->limit, co, dcut); + simpleDeform_twist(factor, dcut, co); + break; case MOD_SIMPLEDEFORM_MODE_BEND: - axis_limit(0, smd->factor+1, co, dcut); - simpleDeform_bend (smd->factor[0], dcut, co); - break; - - case MOD_SIMPLEDEFORM_MODE_TAPER_X: - axis_limit(2, smd->factor+1, co, dcut); - simpleDeform_tapperX (smd->factor[0], dcut, co); - break; - - case MOD_SIMPLEDEFORM_MODE_TAPER_XY: - axis_limit(2, smd->factor+1, co, dcut); - simpleDeform_tapperXY(smd->factor[0], dcut, co); - break; - - case MOD_SIMPLEDEFORM_MODE_STRECH_SQUASH: - axis_limit(2, smd->factor+1, co, dcut); - simpleDeform_strech(smd->factor[0], dcut, co); - break; + axis_limit(0, smd->limit, co, dcut); + simpleDeform_bend(factor, dcut, co); + break; + + case MOD_SIMPLEDEFORM_MODE_TAPER: + axis_limit(2, smd->limit, co, dcut); + simpleDeform_taper(factor, dcut, co); + break; + + + case MOD_SIMPLEDEFORM_MODE_STRETCH: + axis_limit(2, smd->limit, co, dcut); + simpleDeform_stretch(factor, dcut, co); + break; } //linear interpolation |