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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): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
#include <math.h>
#include "MTC_vectorops.h"
#include "../TEX_util.h"
static bNodeSocketType inputs[]= {
{ SOCK_RGBA, 1, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
{ SOCK_VALUE, 1, "Turns", 0.0f, 0.0f, 0.0f, 0.0f, -1.0f, 1.0f },
{ SOCK_VECTOR, 1, "Axis", 0.0f, 0.0f, 1.0f, 0.0f, -1.0f, 1.0f },
{ -1, 0, "" }
};
static bNodeSocketType outputs[]= {
{ SOCK_RGBA, 0, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
{ -1, 0, "" }
};
static void colorfn(float *out, float *coord, bNode *node, bNodeStack **in, short thread)
{
float new_coord[3];
float ax[4];
float para[3];
float perp[3];
float cp[3];
float magsq, ndx;
float a = tex_input_value(in[1], coord, thread);
float cos_a = cos(a * 2 * M_PI);
float sin_a = sin(a * 2 * M_PI);
// x' = xcosa + n(n.x)(1-cosa)+(x*n)sina
tex_input_vec(ax, in[2], coord, thread);
magsq = ax[0]*ax[0] + ax[1]*ax[1] + ax[2]*ax[2];
if(magsq == 0) magsq = 1;
ndx = MTC_dot3Float(coord, ax);
para[0] = ax[0] * ndx * (1 - cos_a);
para[1] = ax[1] * ndx * (1 - cos_a);
para[2] = ax[2] * ndx * (1 - cos_a);
MTC_diff3Float(perp, coord, para);
perp[0] = coord[0] * cos_a;
perp[1] = coord[1] * cos_a;
perp[2] = coord[2] * cos_a;
MTC_cross3Float(cp, ax, coord);
cp[0] = cp[0] * sin_a;
cp[1] = cp[1] * sin_a;
cp[2] = cp[2] * sin_a;
new_coord[0] = para[0] + perp[0] + cp[0];
new_coord[1] = para[1] + perp[1] + cp[1];
new_coord[2] = para[2] + perp[2] + cp[2];
tex_input_rgba(out, in[0], new_coord, thread);
}
static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
tex_output(node, in, out[0], &colorfn);
tex_do_preview(node, out[0], data);
}
bNodeType tex_node_rotate= {
/* *next,*prev */ NULL, NULL,
/* type code */ TEX_NODE_ROTATE,
/* name */ "Rotate",
/* width+range */ 90, 80, 100,
/* class+opts */ NODE_CLASS_DISTORT, 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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