diff options
Diffstat (limited to 'source/blender/nodes/composite/nodes/node_composite_distanceMatte.c')
| -rw-r--r-- | source/blender/nodes/composite/nodes/node_composite_distanceMatte.c | 161 |
1 files changed, 112 insertions, 49 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_distanceMatte.c b/source/blender/nodes/composite/nodes/node_composite_distanceMatte.c index 7aaaa7ed9b4..74e058292d3 100644 --- a/source/blender/nodes/composite/nodes/node_composite_distanceMatte.c +++ b/source/blender/nodes/composite/nodes/node_composite_distanceMatte.c @@ -1,33 +1,33 @@ /* - * ***** BEGIN GPL LICENSE BLOCK ***** - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * The Original Code is Copyright (C) 2006 Blender Foundation. - * All rights reserved. - * - * The Original Code is: all of this file. - * - * Contributor(s): Bob Holcomb - * - * ***** END GPL LICENSE BLOCK ***** - */ +* ***** BEGIN GPL LICENSE BLOCK ***** +* +* This program is free software; you can redistribute it and/or +* modify it under the terms of the GNU General Public License +* as published by the Free Software Foundation; either version 2 +* of the License, or (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software Foundation, +* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +* +* The Original Code is Copyright (C) 2006 Blender Foundation. +* All rights reserved. +* +* The Original Code is: all of this file. +* +* Contributor(s): Bob Holcomb +* +* ***** END GPL LICENSE BLOCK ***** +*/ /** \file blender/nodes/composite/nodes/node_composite_distanceMatte.c - * \ingroup cmpnodes - */ +* \ingroup cmpnodes +*/ #include "node_composite_util.h" @@ -51,34 +51,88 @@ static void do_distance_matte(bNode *node, float *out, float *in) { NodeChroma *c= (NodeChroma *)node->storage; float tolerence=c->t1; - float falloff=c->t2; + float fper=c->t2; + /* get falloff amount over tolerence size */ + float falloff=(1.0f-fper) * tolerence; float distance; float alpha; distance=sqrt((c->key[0]-in[0])*(c->key[0]-in[0]) + - (c->key[1]-in[1])*(c->key[1]-in[1]) + - (c->key[2]-in[2])*(c->key[2]-in[2])); + (c->key[1]-in[1])*(c->key[1]-in[1]) + + (c->key[2]-in[2])*(c->key[2]-in[2])); copy_v3_v3(out, in); - /*make 100% transparent */ - if (distance < tolerence) { - out[3]=0.0; - } - /*in the falloff region, make partially transparent */ - else if (distance < falloff+tolerence) { - distance=distance-tolerence; - alpha=distance/falloff; + if (distance <= tolerence) { + if(distance<=falloff) { + alpha=0.0f; + } + else{ + /* alpha as percent (distance / tolerance), each modified by falloff amount (in pixels)*/ + alpha=(distance-falloff)/(tolerence-falloff); + } + /*only change if more transparent than before */ if (alpha < in[3]) { + /*clamp*/ + if(alpha<0.0f) alpha=0.0f; + if(alpha>1.0f) alpha=1.0f; out[3]=alpha; } else { /* leave as before */ out[3]=in[3]; } } - else { - out[3]=in[3]; +} + +static void do_chroma_distance_matte(bNode *node, float *out, float *in) +{ + NodeChroma *c= (NodeChroma *)node->storage; + float tolerence=c->t1; + float fper=c->t2; + /* get falloff amount over tolerence size */ + float falloff=(1.0f-fper) * tolerence; + float y_key, cb_key, cr_key; + float y_pix, cb_pix, cr_pix; + float distance; + float alpha; + + /*convert key to chroma colorspace */ + rgb_to_ycc(c->key[0], c->key[1], c->key[2], &y_key, &cb_key, &cr_key, BLI_YCC_JFIF_0_255); + /* normalize the values */ + cb_key=cb_key/255.0f; + cr_key=cr_key/255.0f; + + /*convert pixel to chroma colorspace */ + rgb_to_ycc(in[0], in[1], in[2], &y_pix, &cb_pix, &cr_pix, BLI_YCC_JFIF_0_255); + /*normalize the values */ + cb_pix=cb_pix/255.0f; + cr_pix=cr_pix/255.0f; + + distance=sqrt((cb_key-cb_pix)*(cb_key-cb_pix) + + (cr_key-cr_pix)*(cr_key-cr_pix)); + + copy_v3_v3(out, in); + + if (distance <= tolerence) { + if(distance<=falloff) { + alpha=0.0f; + } + else{ + /* alpha as percent (distance / tolerance), each modified by falloff amount (in pixels)*/ + alpha=(distance-falloff)/(tolerence-falloff); + } + + /*only change if more transparent than before */ + if (alpha < in[3]) { + /*clamp*/ + if(alpha<0.0f) alpha=0.0f; + if(alpha>1.0f) alpha=1.0f; + out[3]=alpha; + } + else { /* leave as before */ + out[3]=in[3]; + } } } @@ -91,26 +145,34 @@ static void node_composit_exec_distance_matte(void *data, bNode *node, bNodeStac CompBuf *workbuf; CompBuf *inbuf; NodeChroma *c; - + /*is anything connected?*/ if (out[0]->hasoutput==0 && out[1]->hasoutput==0) return; /*must have an image imput*/ if (in[0]->data==NULL) return; - + inbuf=typecheck_compbuf(in[0]->data, CB_RGBA); - + c=node->storage; workbuf=dupalloc_compbuf(inbuf); - + /*use the input color*/ c->key[0]= in[1]->vec[0]; c->key[1]= in[1]->vec[1]; c->key[2]= in[1]->vec[2]; - - /* note, processor gets a keyvals array passed on as buffer constant */ - composit1_pixel_processor(node, workbuf, workbuf, in[0]->vec, do_distance_matte, CB_RGBA); - - + + /* work in RGB color space */ + if(c->channel==1) { + /* note, processor gets a keyvals array passed on as buffer constant */ + composit1_pixel_processor(node, workbuf, workbuf, in[0]->vec, do_distance_matte, CB_RGBA); + } + /* work in YCbCr color space */ + else { + composit1_pixel_processor(node, workbuf, workbuf, in[0]->vec, do_chroma_distance_matte, CB_RGBA); + } + + + out[0]->data=workbuf; if (out[1]->hasoutput) out[1]->data=valbuf_from_rgbabuf(workbuf, CHAN_A); @@ -124,6 +186,7 @@ static void node_composit_init_distance_matte(bNodeTree *UNUSED(ntree), bNode* n { NodeChroma *c= MEM_callocN(sizeof(NodeChroma), "node chroma"); node->storage= c; + c->channel=1; c->t1= 0.1f; c->t2= 0.1f; } |