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
96
97
98
99
100
|
/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2006 Blender Foundation. All rights reserved. */
/** \file
* \ingroup texnodes
*/
#include "NOD_texture.h"
#include "node_texture_util.h"
static bNodeSocketTemplate inputs[] = {
{SOCK_FLOAT, N_("Hue"), 0.0f, 0.0f, 0.0f, 0.0f, -0.5f, 0.5f, PROP_NONE},
{SOCK_FLOAT, N_("Saturation"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 2.0f, PROP_NONE},
{SOCK_FLOAT, N_("Value"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 2.0f, PROP_NONE},
{SOCK_FLOAT, N_("Factor"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_NONE},
{SOCK_RGBA, N_("Color"), 0.8f, 0.8f, 0.8f, 1.0f},
{-1, ""},
};
static bNodeSocketTemplate outputs[] = {
{SOCK_RGBA, N_("Color")},
{-1, ""},
};
static void do_hue_sat_fac(
bNode *UNUSED(node), float *out, float hue, float sat, float val, float *in, float fac)
{
if (fac != 0 && (hue != 0.5f || sat != 1 || val != 1)) {
float col[3], hsv[3], mfac = 1.0f - fac;
rgb_to_hsv(in[0], in[1], in[2], hsv, hsv + 1, hsv + 2);
hsv[0] += (hue - 0.5f);
if (hsv[0] > 1.0f) {
hsv[0] -= 1.0f;
}
else if (hsv[0] < 0.0f) {
hsv[0] += 1.0f;
}
hsv[1] *= sat;
if (hsv[1] > 1.0f) {
hsv[1] = 1.0f;
}
else if (hsv[1] < 0.0f) {
hsv[1] = 0.0f;
}
hsv[2] *= val;
if (hsv[2] > 1.0f) {
hsv[2] = 1.0f;
}
else if (hsv[2] < 0.0f) {
hsv[2] = 0.0f;
}
hsv_to_rgb(hsv[0], hsv[1], hsv[2], col, col + 1, col + 2);
out[0] = mfac * in[0] + fac * col[0];
out[1] = mfac * in[1] + fac * col[1];
out[2] = mfac * in[2] + fac * col[2];
}
else {
copy_v4_v4(out, in);
}
}
static void colorfn(float *out, TexParams *p, bNode *node, bNodeStack **in, short thread)
{
float hue = tex_input_value(in[0], p, thread);
float sat = tex_input_value(in[1], p, thread);
float val = tex_input_value(in[2], p, thread);
float fac = tex_input_value(in[3], p, thread);
float col[4];
tex_input_rgba(col, in[4], p, thread);
hue += 0.5f; /* [-0.5, 0.5] -> [0, 1] */
do_hue_sat_fac(node, out, hue, sat, val, col, fac);
out[3] = col[3];
}
static void exec(void *data,
int UNUSED(thread),
bNode *node,
bNodeExecData *execdata,
bNodeStack **in,
bNodeStack **out)
{
tex_output(node, execdata, in, out[0], &colorfn, data);
}
void register_node_type_tex_hue_sat(void)
{
static bNodeType ntype;
tex_node_type_base(&ntype, TEX_NODE_HUE_SAT, "Hue Saturation Value", NODE_CLASS_OP_COLOR);
node_type_socket_templates(&ntype, inputs, outputs);
node_type_size_preset(&ntype, NODE_SIZE_MIDDLE);
node_type_exec(&ntype, NULL, NULL, exec);
nodeRegisterType(&ntype);
}
|
