Lukas Tönne
3ae641eb02
Blender Internal shader nodes. All nodes now use the `nodestack_get_vec` function to convert whatever input values are connected to the desired type, instead of using the stack values directly regardless of what they contain. Note that this might break old node setups that have been adapted to the faulty behavior, but as discussed in the bug report the 2.70 version is the right time to fix this.
103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2006 Blender Foundation.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): Juho Vepsäläinen
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/nodes/shader/nodes/node_shader_hueSatVal.c
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* \ingroup shdnodes
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*/
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#include "node_shader_util.h"
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/* **************** Hue Saturation ******************** */
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static bNodeSocketTemplate sh_node_hue_sat_in[] = {
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{ SOCK_FLOAT, 1, N_("Hue"), 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_NONE},
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{ SOCK_FLOAT, 1, N_("Saturation"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 2.0f, PROP_NONE},
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{ SOCK_FLOAT, 1, N_("Value"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 2.0f, PROP_NONE},
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{ SOCK_FLOAT, 1, N_("Fac"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_FACTOR},
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{ SOCK_RGBA, 1, N_("Color"), 0.8f, 0.8f, 0.8f, 1.0f},
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{ -1, 0, "" }
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};
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static bNodeSocketTemplate sh_node_hue_sat_out[] = {
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{ SOCK_RGBA, 0, N_("Color")},
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{ -1, 0, "" }
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};
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/* note: it would be possible to use CMP version for both nodes */
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static void do_hue_sat_fac(bNode *UNUSED(node), float *out, float hue, float sat, float val, float in[4], float fac)
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{
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if (fac != 0.0f && (hue != 0.5f || sat != 1.0f || val != 1.0f)) {
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float col[3], hsv[3], mfac = 1.0f - fac;
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rgb_to_hsv(in[0], in[1], in[2], hsv, hsv + 1, hsv + 2);
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hsv[0] += (hue - 0.5f);
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if (hsv[0] > 1.0f) hsv[0] -= 1.0f; else if (hsv[0] < 0.0f) hsv[0] += 1.0f;
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hsv[1] *= sat;
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hsv[2] *= val;
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hsv_to_rgb(hsv[0], hsv[1], hsv[2], col, col + 1, col + 2);
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out[0] = mfac * in[0] + fac * col[0];
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out[1] = mfac * in[1] + fac * col[1];
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out[2] = mfac * in[2] + fac * col[2];
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}
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else {
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copy_v4_v4(out, in);
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}
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}
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static void node_shader_exec_hue_sat(void *UNUSED(data), int UNUSED(thread), bNode *node, bNodeExecData *UNUSED(execdata), bNodeStack **in, bNodeStack **out)
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{
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float hue, sat, val, fac;
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float col[4];
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nodestack_get_vec(&hue, SOCK_FLOAT, in[0]);
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nodestack_get_vec(&sat, SOCK_FLOAT, in[1]);
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nodestack_get_vec(&val, SOCK_FLOAT, in[2]);
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nodestack_get_vec(&fac, SOCK_FLOAT, in[3]);
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nodestack_get_vec(col, SOCK_RGBA, in[4]);
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do_hue_sat_fac(node, out[0]->vec, hue, sat, val, col, fac);
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}
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static int gpu_shader_hue_sat(GPUMaterial *mat, bNode *UNUSED(node), bNodeExecData *UNUSED(execdata), GPUNodeStack *in, GPUNodeStack *out)
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{
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return GPU_stack_link(mat, "hue_sat", in, out);
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}
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void register_node_type_sh_hue_sat(void)
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{
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static bNodeType ntype;
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sh_node_type_base(&ntype, SH_NODE_HUE_SAT, "Hue Saturation Value", NODE_CLASS_OP_COLOR, 0);
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node_type_compatibility(&ntype, NODE_OLD_SHADING | NODE_NEW_SHADING);
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node_type_socket_templates(&ntype, sh_node_hue_sat_in, sh_node_hue_sat_out);
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node_type_size_preset(&ntype, NODE_SIZE_MIDDLE);
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node_type_exec(&ntype, NULL, NULL, node_shader_exec_hue_sat);
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node_type_gpu(&ntype, gpu_shader_hue_sat);
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nodeRegisterType(&ntype);
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}
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