82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
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* $Id$
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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): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/nodes/intern/SHD_nodes/SHD_squeeze.c
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* \ingroup shdnodes
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*/
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#include "../SHD_util.h"
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/* **************** VALUE SQUEEZE ******************** */
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static bNodeSocketType sh_node_squeeze_in[]= {
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{ SOCK_VALUE, 1, "Value", 0.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f},
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{ SOCK_VALUE, 1, "Width", 1.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f},
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{ SOCK_VALUE, 1, "Center", 0.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f},
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{ -1, 0, "" }
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};
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static bNodeSocketType sh_node_squeeze_out[]= {
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{ SOCK_VALUE, 0, "Value", 0.5f, 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 node_shader_exec_squeeze(void *UNUSED(data), bNode *UNUSED(node), bNodeStack **in,
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bNodeStack **out)
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{
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float vec[3];
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nodestack_get_vec(vec, SOCK_VALUE, in[0]);
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nodestack_get_vec(vec+1, SOCK_VALUE, in[1]);
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nodestack_get_vec(vec+2, SOCK_VALUE, in[2]);
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out[0]->vec[0] = 1.0f / (1.0f + pow(2.71828183,-((vec[0]-vec[2])*vec[1]))) ;
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}
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static int gpu_shader_squeeze(GPUMaterial *mat, bNode *UNUSED(node), GPUNodeStack *in, GPUNodeStack *out)
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{
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return GPU_stack_link(mat, "squeeze", in, out);
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}
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void register_node_type_sh_squeeze(ListBase *lb)
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{
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static bNodeType ntype;
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node_type_base(&ntype, SH_NODE_SQUEEZE, "Squeeze Value", NODE_CLASS_CONVERTOR, NODE_OPTIONS,
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sh_node_squeeze_in, sh_node_squeeze_out);
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node_type_size(&ntype, 120, 110, 160);
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node_type_storage(&ntype, "node_squeeze", NULL, NULL);
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node_type_exec(&ntype, node_shader_exec_squeeze);
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node_type_gpu(&ntype, gpu_shader_squeeze);
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nodeRegisterType(lb, &ntype);
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}
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