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/**
*
* ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Jucas.
*
* ***** END GPL LICENSE BLOCK *****
*/
#include "../TEX_util.h"
static bNodeSocketType inputs[]= {
{ SOCK_VALUE, 1, "Val", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f },
{ SOCK_VALUE, 1, "Nabla", 0.025f, 0.0f, 0.0f, 0.0f, 0.001f, 0.1f },
{ -1, 0, "" }
};
static bNodeSocketType outputs[]= {
{ SOCK_VECTOR, 0, "Normal", 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f },
{ -1, 0, "" }
};
static void normalfn(float *out, float *coord, bNode *node, bNodeStack **in, short thread)
{
float new_coord[3];
float nabla = tex_input_value(in[1], coord, thread);
float val;
float nor[3];
val = tex_input_value(in[0], coord, thread);
new_coord[0] = coord[0] + nabla;
new_coord[1] = coord[1];
new_coord[2] = coord[2];
nor[0] = tex_input_value(in[0], new_coord, thread);
new_coord[0] = coord[0];
new_coord[1] = coord[1] + nabla;
nor[1] = tex_input_value(in[0], new_coord, thread);
new_coord[1] = coord[1];
new_coord[2] = coord[2] + nabla;
nor[2] = tex_input_value(in[0], new_coord, thread);
out[0] = val-nor[0];
out[1] = val-nor[1];
out[2] = val-nor[2];
}
static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
tex_output(node, in, out[0], &normalfn);
tex_do_preview(node, out[0], data);
}
bNodeType tex_node_valtonor = {
/* *next,*prev */ NULL, NULL,
/* type code */ TEX_NODE_VALTONOR,
/* name */ "Value to Normal",
/* width+range */ 90, 80, 100,
/* class+opts */ NODE_CLASS_CONVERTOR, NODE_OPTIONS,
/* input sock */ inputs,
/* output sock */ outputs,
/* storage */ "",
/* execfunc */ exec,
/* butfunc */ NULL,
/* initfunc */ NULL,
/* freestoragefunc */ NULL,
/* copystoragefunc */ NULL,
/* id */ NULL
};
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