117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/*
|
|
* 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 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, 0);
|
|
node_type_socket_templates(&ntype, inputs, outputs);
|
|
node_type_size_preset(&ntype, NODE_SIZE_MIDDLE);
|
|
node_type_exec(&ntype, NULL, NULL, exec);
|
|
|
|
nodeRegisterType(&ntype);
|
|
}
|