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/*
* 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) 2005 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup texnodes
*/
#include "NOD_texture.h"
#include "node_texture_util.h"
static bNodeSocketTemplate inputs[] = {
{SOCK_FLOAT, N_("Val"), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, PROP_NONE},
{SOCK_FLOAT, N_("Nabla"), 0.025f, 0.0f, 0.0f, 0.0f, 0.001f, 0.1f, PROP_UNSIGNED},
{-1, ""},
};
static bNodeSocketTemplate outputs[] = {
{SOCK_VECTOR, N_("Normal")},
{-1, ""},
};
static void normalfn(float *out, TexParams *p, bNode *UNUSED(node), bNodeStack **in, short thread)
{
float new_co[3];
const float *co = p->co;
float nabla = tex_input_value(in[1], p, thread);
float val;
float nor[3];
TexParams np = *p;
np.co = new_co;
val = tex_input_value(in[0], p, thread);
new_co[0] = co[0] + nabla;
new_co[1] = co[1];
new_co[2] = co[2];
nor[0] = tex_input_value(in[0], &np, thread);
new_co[0] = co[0];
new_co[1] = co[1] + nabla;
nor[1] = tex_input_value(in[0], &np, thread);
new_co[1] = co[1];
new_co[2] = co[2] + nabla;
nor[2] = tex_input_value(in[0], &np, thread);
out[0] = val - nor[0];
out[1] = val - nor[1];
out[2] = val - nor[2];
}
static void exec(void *data,
int UNUSED(thread),
bNode *node,
bNodeExecData *execdata,
bNodeStack **in,
bNodeStack **out)
{
tex_output(node, execdata, in, out[0], &normalfn, data);
}
void register_node_type_tex_valtonor(void)
{
static bNodeType ntype;
tex_node_type_base(&ntype, TEX_NODE_VALTONOR, "Value to Normal", NODE_CLASS_CONVERTER);
node_type_socket_templates(&ntype, inputs, outputs);
node_type_exec(&ntype, NULL, NULL, exec);
nodeRegisterType(&ntype);
}
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