1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/*
* 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) 2006 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup cmpnodes
*/
#include "node_composite_util.hh"
/* ******************* Color Balance ********************************* */
namespace blender::nodes {
static void cmp_node_colorbalance_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Float>("Fac").default_value(1.0f).min(0.0f).max(1.0f).subtype(PROP_FACTOR);
b.add_input<decl::Color>("Image").default_value({1.0f, 1.0f, 1.0f, 1.0f});
b.add_output<decl::Color>("Image");
}
} // namespace blender::nodes
/* Sync functions update formula parameters for other modes, such that the result is comparable.
* Note that the results are not exactly the same due to differences in color handling
* (sRGB conversion happens for LGG),
* but this keeps settings comparable.
*/
void ntreeCompositColorBalanceSyncFromLGG(bNodeTree *UNUSED(ntree), bNode *node)
{
NodeColorBalance *n = (NodeColorBalance *)node->storage;
for (int c = 0; c < 3; c++) {
n->slope[c] = (2.0f - n->lift[c]) * n->gain[c];
n->offset[c] = (n->lift[c] - 1.0f) * n->gain[c];
n->power[c] = (n->gamma[c] != 0.0f) ? 1.0f / n->gamma[c] : 1000000.0f;
}
}
void ntreeCompositColorBalanceSyncFromCDL(bNodeTree *UNUSED(ntree), bNode *node)
{
NodeColorBalance *n = (NodeColorBalance *)node->storage;
for (int c = 0; c < 3; c++) {
float d = n->slope[c] + n->offset[c];
n->lift[c] = (d != 0.0f ? n->slope[c] + 2.0f * n->offset[c] / d : 0.0f);
n->gain[c] = d;
n->gamma[c] = (n->power[c] != 0.0f) ? 1.0f / n->power[c] : 1000000.0f;
}
}
static void node_composit_init_colorbalance(bNodeTree *UNUSED(ntree), bNode *node)
{
NodeColorBalance *n = (NodeColorBalance *)MEM_callocN(sizeof(NodeColorBalance),
"node colorbalance");
n->lift[0] = n->lift[1] = n->lift[2] = 1.0f;
n->gamma[0] = n->gamma[1] = n->gamma[2] = 1.0f;
n->gain[0] = n->gain[1] = n->gain[2] = 1.0f;
n->slope[0] = n->slope[1] = n->slope[2] = 1.0f;
n->offset[0] = n->offset[1] = n->offset[2] = 0.0f;
n->power[0] = n->power[1] = n->power[2] = 1.0f;
node->storage = n;
}
void register_node_type_cmp_colorbalance(void)
{
static bNodeType ntype;
cmp_node_type_base(&ntype, CMP_NODE_COLORBALANCE, "Color Balance", NODE_CLASS_OP_COLOR, 0);
ntype.declare = blender::nodes::cmp_node_colorbalance_declare;
node_type_size(&ntype, 400, 200, 400);
node_type_init(&ntype, node_composit_init_colorbalance);
node_type_storage(
&ntype, "NodeColorBalance", node_free_standard_storage, node_copy_standard_storage);
nodeRegisterType(&ntype);
}
|
