diff options
Diffstat (limited to 'source/blender/nodes/shader/nodes/node_shader_squeeze.c')
-rw-r--r-- | source/blender/nodes/shader/nodes/node_shader_squeeze.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/source/blender/nodes/shader/nodes/node_shader_squeeze.c b/source/blender/nodes/shader/nodes/node_shader_squeeze.c new file mode 100644 index 00000000000..305639dff21 --- /dev/null +++ b/source/blender/nodes/shader/nodes/node_shader_squeeze.c @@ -0,0 +1,81 @@ +/* + * $Id: SHD_squeeze.c 36593 2011-05-10 11:19:26Z lukastoenne $ + * + * ***** 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) 2005 Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/nodes/shader/nodes/node_shader_squeeze.c + * \ingroup shdnodes + */ + + +#include "node_shader_util.h" + +/* **************** VALUE SQUEEZE ******************** */ +static bNodeSocketTemplate sh_node_squeeze_in[]= { + { SOCK_FLOAT, 1, "Value", 0.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f, PROP_NONE}, + { SOCK_FLOAT, 1, "Width", 1.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f, PROP_NONE}, + { SOCK_FLOAT, 1, "Center", 0.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f, PROP_NONE}, + { -1, 0, "" } +}; + +static bNodeSocketTemplate sh_node_squeeze_out[]= { + { SOCK_FLOAT, 0, "Value"}, + { -1, 0, "" } +}; + +static void node_shader_exec_squeeze(void *UNUSED(data), bNode *UNUSED(node), bNodeStack **in, +bNodeStack **out) +{ + float vec[3]; + + nodestack_get_vec(vec, SOCK_FLOAT, in[0]); + nodestack_get_vec(vec+1, SOCK_FLOAT, in[1]); + nodestack_get_vec(vec+2, SOCK_FLOAT, in[2]); + + out[0]->vec[0] = 1.0f / (1.0f + pow(2.71828183,-((vec[0]-vec[2])*vec[1]))) ; +} + +static int gpu_shader_squeeze(GPUMaterial *mat, bNode *UNUSED(node), GPUNodeStack *in, GPUNodeStack *out) +{ + return GPU_stack_link(mat, "squeeze", in, out); +} + +void register_node_type_sh_squeeze(ListBase *lb) +{ + static bNodeType ntype; + + node_type_base(&ntype, SH_NODE_SQUEEZE, "Squeeze Value", NODE_CLASS_CONVERTOR, NODE_OPTIONS); + node_type_socket_templates(&ntype, sh_node_squeeze_in, sh_node_squeeze_out); + node_type_size(&ntype, 120, 110, 160); + node_type_storage(&ntype, "node_squeeze", NULL, NULL); + node_type_exec(&ntype, node_shader_exec_squeeze); + node_type_gpu(&ntype, gpu_shader_squeeze); + + nodeRegisterType(lb, &ntype); +} + + |