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/*
* 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.
*/
/** \file
* \ingroup shdnodes
*/
#include "node_shader_util.h"
/* **************** INVERT ******************** */
static bNodeSocketTemplate sh_node_invert_in[] = {
{SOCK_FLOAT, N_("Fac"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
{SOCK_RGBA, N_("Color"), 0.0f, 0.0f, 0.0f, 1.0f},
{-1, ""}};
static bNodeSocketTemplate sh_node_invert_out[] = {{SOCK_RGBA, N_("Color")}, {-1, ""}};
static void node_shader_exec_invert(void *UNUSED(data),
int UNUSED(thread),
bNode *UNUSED(node),
bNodeExecData *UNUSED(execdata),
bNodeStack **in,
bNodeStack **out)
{
float col[3], icol[3], fac;
nodestack_get_vec(&fac, SOCK_FLOAT, in[0]);
nodestack_get_vec(col, SOCK_VECTOR, in[1]);
icol[0] = 1.0f - col[0];
icol[1] = 1.0f - col[1];
icol[2] = 1.0f - col[2];
/* if fac, blend result against original input */
if (fac < 1.0f) {
interp_v3_v3v3(out[0]->vec, col, icol, fac);
}
else {
copy_v3_v3(out[0]->vec, icol);
}
}
static int gpu_shader_invert(GPUMaterial *mat,
bNode *node,
bNodeExecData *UNUSED(execdata),
GPUNodeStack *in,
GPUNodeStack *out)
{
return GPU_stack_link(mat, node, "invert", in, out);
}
void register_node_type_sh_invert(void)
{
static bNodeType ntype;
sh_node_type_base(&ntype, SH_NODE_INVERT, "Invert", NODE_CLASS_OP_COLOR, 0);
node_type_socket_templates(&ntype, sh_node_invert_in, sh_node_invert_out);
node_type_exec(&ntype, NULL, NULL, node_shader_exec_invert);
node_type_gpu(&ntype, gpu_shader_invert);
nodeRegisterType(&ntype);
}
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