104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/**
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*
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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): Robin Allen
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include <math.h>
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#include "../TEX_util.h"
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static bNodeSocketType inputs[]= {
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{ SOCK_RGBA, 1, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
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{ SOCK_VALUE, 1, "Turns", 0.0f, 0.0f, 0.0f, 0.0f, -1.0f, 1.0f },
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{ SOCK_VECTOR, 1, "Axis", 0.0f, 0.0f, 1.0f, 0.0f, -1.0f, 1.0f },
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{ -1, 0, "" }
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};
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static bNodeSocketType outputs[]= {
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{ SOCK_RGBA, 0, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
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{ -1, 0, "" }
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};
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static void rotate(float new_co[3], float a, float ax[3], float co[3])
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{
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float para[3];
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float perp[3];
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float cp[3];
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float cos_a = cos(a * 2 * M_PI);
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float sin_a = sin(a * 2 * M_PI);
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// x' = xcosa + n(n.x)(1-cosa) + (x*n)sina
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mul_v3_v3fl(perp, co, cos_a);
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mul_v3_v3fl(para, ax, dot_v3v3(co, ax)*(1 - cos_a));
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cross_v3_v3v3(cp, ax, co);
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mul_v3_fl(cp, sin_a);
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new_co[0] = para[0] + perp[0] + cp[0];
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new_co[1] = para[1] + perp[1] + cp[1];
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new_co[2] = para[2] + perp[2] + cp[2];
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}
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static void colorfn(float *out, TexParams *p, bNode *UNUSED(node), bNodeStack **in, short thread)
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{
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float new_co[3], new_dxt[3], new_dyt[3], a, ax[3];
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a= tex_input_value(in[1], p, thread);
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tex_input_vec(ax, in[2], p, thread);
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rotate(new_co, a, ax, p->co);
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if (p->osatex) {
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rotate(new_dxt, a, ax, p->dxt);
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rotate(new_dyt, a, ax, p->dyt);
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}
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{
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TexParams np = *p;
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np.co = new_co;
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np.dxt = new_dxt;
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np.dyt = new_dyt;
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tex_input_rgba(out, in[0], &np, thread);
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}
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}
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static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
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{
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tex_output(node, in, out[0], &colorfn, data);
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}
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void register_node_type_tex_rotate(ListBase *lb)
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{
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static bNodeType ntype;
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node_type_base(&ntype, TEX_NODE_ROTATE, "Rotate", NODE_CLASS_DISTORT, NODE_OPTIONS,
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inputs, outputs);
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node_type_size(&ntype, 140, 100, 320);
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node_type_exec(&ntype, exec);
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nodeRegisterType(lb, &ntype);
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}
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