83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/*
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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) 2005 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): Robin Allen
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/nodes/texture/nodes/node_texture_checker.c
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* \ingroup texnodes
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*/
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#include "node_texture_util.h"
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#include "NOD_texture.h"
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#include <math.h>
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static bNodeSocketTemplate inputs[] = {
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{ SOCK_RGBA, 1, N_("Color1"), 1.0f, 0.0f, 0.0f, 1.0f },
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{ SOCK_RGBA, 1, N_("Color2"), 1.0f, 1.0f, 1.0f, 1.0f },
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{ SOCK_FLOAT, 1, N_("Size"), 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 100.0f, PROP_UNSIGNED },
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{ -1, 0, "" }
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};
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static bNodeSocketTemplate outputs[] = {
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{ SOCK_RGBA, 0, N_("Color") },
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{ -1, 0, "" }
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};
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static void colorfn(float *out, TexParams *p, bNode *UNUSED(node), bNodeStack **in, short thread)
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{
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float x = p->co[0];
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float y = p->co[1];
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float z = p->co[2];
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float sz = tex_input_value(in[2], p, thread);
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/* 0.00001 because of unit sized stuff */
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int xi = (int)fabs(floor(0.00001f + x / sz));
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int yi = (int)fabs(floor(0.00001f + y / sz));
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int zi = (int)fabs(floor(0.00001f + z / sz));
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if ( (xi % 2 == yi % 2) == (zi % 2) ) {
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tex_input_rgba(out, in[0], p, thread);
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}
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else {
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tex_input_rgba(out, in[1], p, thread);
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}
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}
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static void exec(void *data, int UNUSED(thread), bNode *node, bNodeExecData *execdata, bNodeStack **in, bNodeStack **out)
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{
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tex_output(node, execdata, in, out[0], &colorfn, data);
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}
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void register_node_type_tex_checker(void)
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{
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static bNodeType ntype;
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tex_node_type_base(&ntype, TEX_NODE_CHECKER, "Checker", NODE_CLASS_PATTERN, NODE_PREVIEW);
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node_type_socket_templates(&ntype, inputs, outputs);
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node_type_exec(&ntype, NULL, NULL, exec);
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nodeRegisterType(&ntype);
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}
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