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/*
* $Id$
*
* ***** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2006 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/nodes/composite/nodes/node_composite_normal.c
* \ingroup cmpnodes
*/
#include "node_composite_util.h"
/* **************** NORMAL ******************** */
static bNodeSocketTemplate cmp_node_normal_in[]= {
{ SOCK_VECTOR, 1, "Normal", 0.0f, 0.0f, 0.0f, 1.0f, -1.0f, 1.0f, PROP_DIRECTION},
{ -1, 0, "" }
};
static bNodeSocketTemplate cmp_node_normal_out[]= {
{ SOCK_VECTOR, 0, "Normal"},
{ SOCK_FLOAT, 0, "Dot"},
{ -1, 0, "" }
};
static void do_normal(bNode *node, float *out, float *in)
{
bNodeSocket *sock= node->outputs.first;
float *nor= ((bNodeSocketValueVector*)sock->default_value)->value;
/* render normals point inside... the widget points outside */
out[0]= -INPR(nor, in);
}
/* generates normal, does dot product */
static void node_composit_exec_normal(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
{
bNodeSocket *sock= node->outputs.first;
float *nor= ((bNodeSocketValueVector*)sock->default_value)->value;
/* stack order input: normal */
/* stack order output: normal, value */
/* input no image? then only vector op */
if(in[0]->data==NULL) {
VECCOPY(out[0]->vec, nor);
/* render normals point inside... the widget points outside */
out[1]->vec[0]= -INPR(out[0]->vec, in[0]->vec);
}
else if(out[1]->hasoutput) {
/* make output size of input image */
CompBuf *cbuf= in[0]->data;
CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_VAL, 1); /* allocs */
composit1_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, do_normal, CB_VEC3);
out[1]->data= stackbuf;
}
}
static void init(bNodeTree *UNUSED(ntree), bNode *node, bNodeTemplate *UNUSED(ntemp))
{
bNodeSocket *sock= node->outputs.first;
float *nor= ((bNodeSocketValueVector*)sock->default_value)->value;
nor[0] = 0.0f;
nor[1] = 0.0f;
nor[2] = 1.0f;
}
void register_node_type_cmp_normal(ListBase *lb)
{
static bNodeType ntype;
node_type_base(&ntype, CMP_NODE_NORMAL, "Normal", NODE_CLASS_OP_VECTOR, NODE_OPTIONS);
node_type_socket_templates(&ntype, cmp_node_normal_in, cmp_node_normal_out);
node_type_init(&ntype, init);
node_type_size(&ntype, 100, 60, 200);
node_type_exec(&ntype, node_composit_exec_normal);
nodeRegisterType(lb, &ntype);
}
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