106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/*
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2006 Blender Foundation.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): Juho Vepsäläinen
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/nodes/intern/TEX_nodes/TEX_hueSatVal.c
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* \ingroup texnodes
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*/
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#include "../TEX_util.h"
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static bNodeSocketType inputs[]= {
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{ SOCK_VALUE, 1, "Hue", 0.0f, 0.0f, 0.0f, 0.0f, -0.5f, 0.5f },
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{ SOCK_VALUE, 1, "Saturation", 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 2.0f },
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{ SOCK_VALUE, 1, "Value", 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 2.0f },
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{ SOCK_VALUE, 1, "Factor", 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f },
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{ SOCK_RGBA, 1, "Color", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f },
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{ -1, 0, "" }
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};
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static bNodeSocketType outputs[]= {
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{ SOCK_RGBA, 0, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f },
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{ -1, 0, "" }
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};
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static void do_hue_sat_fac(bNode *UNUSED(node), float *out, float hue, float sat, float val, float *in, float fac)
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{
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if(fac != 0 && (hue != 0.5f || sat != 1 || val != 1)) {
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float col[3], hsv[3], mfac= 1.0f - fac;
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rgb_to_hsv(in[0], in[1], in[2], hsv, hsv+1, hsv+2);
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hsv[0]+= (hue - 0.5f);
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if(hsv[0]>1.0f) hsv[0]-=1.0f; else if(hsv[0]<0.0f) hsv[0]+= 1.0f;
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hsv[1]*= sat;
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if(hsv[1]>1.0f) hsv[1]= 1.0f; else if(hsv[1]<0.0f) hsv[1]= 0.0f;
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hsv[2]*= val;
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if(hsv[2]>1.0f) hsv[2]= 1.0f; else if(hsv[2]<0.0f) hsv[2]= 0.0f;
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hsv_to_rgb(hsv[0], hsv[1], hsv[2], col, col+1, col+2);
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out[0]= mfac*in[0] + fac*col[0];
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out[1]= mfac*in[1] + fac*col[1];
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out[2]= mfac*in[2] + fac*col[2];
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}
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else {
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QUATCOPY(out, in);
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}
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}
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static void colorfn(float *out, TexParams *p, bNode *node, bNodeStack **in, short thread)
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{
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float hue = tex_input_value(in[0], p, thread);
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float sat = tex_input_value(in[1], p, thread);
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float val = tex_input_value(in[2], p, thread);
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float fac = tex_input_value(in[3], p, thread);
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float col[4];
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tex_input_rgba(col, in[4], p, thread);
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hue += 0.5f; /* [-.5, .5] -> [0, 1] */
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do_hue_sat_fac(node, out, hue, sat, val, col, fac);
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out[3] = col[3];
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}
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static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
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{
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tex_output(node, in, out[0], &colorfn, data);
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}
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void register_node_type_tex_hue_sat(ListBase *lb)
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{
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static bNodeType ntype;
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node_type_base(&ntype, TEX_NODE_HUE_SAT, "Hue Saturation Value", NODE_CLASS_OP_COLOR, NODE_OPTIONS,
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inputs, outputs);
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node_type_size(&ntype, 150, 80, 250);
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node_type_exec(&ntype, exec);
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nodeRegisterType(lb, &ntype);
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}
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