93 lines
2.6 KiB
C
93 lines
2.6 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): Jucas.
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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_valToNor.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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static bNodeSocketTemplate inputs[] = {
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{ SOCK_FLOAT, 1, N_("Val"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_NONE },
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{ SOCK_FLOAT, 1, N_("Nabla"), 0.025f, 0.0f, 0.0f, 0.0f, 0.001f, 0.1f, PROP_UNSIGNED },
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{ -1, 0, "" }
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};
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static bNodeSocketTemplate outputs[] = {
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{ SOCK_VECTOR, 0, N_("Normal") },
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{ -1, 0, "" }
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};
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static void normalfn(float *out, TexParams *p, bNode *UNUSED(node), bNodeStack **in, short thread)
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{
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float new_co[3];
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const float *co = p->co;
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float nabla = tex_input_value(in[1], p, thread);
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float val;
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float nor[3];
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TexParams np = *p;
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np.co = new_co;
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val = tex_input_value(in[0], p, thread);
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new_co[0] = co[0] + nabla;
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new_co[1] = co[1];
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new_co[2] = co[2];
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nor[0] = tex_input_value(in[0], &np, thread);
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new_co[0] = co[0];
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new_co[1] = co[1] + nabla;
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nor[1] = tex_input_value(in[0], &np, thread);
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new_co[1] = co[1];
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new_co[2] = co[2] + nabla;
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nor[2] = tex_input_value(in[0], &np, thread);
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out[0] = val - nor[0];
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out[1] = val - nor[1];
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out[2] = val - nor[2];
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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], &normalfn, data);
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}
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void register_node_type_tex_valtonor(void)
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{
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static bNodeType ntype;
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tex_node_type_base(&ntype, TEX_NODE_VALTONOR, "Value to Normal", NODE_CLASS_CONVERTOR, 0);
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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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