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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"
/* **************** Map Range ******************** */
static bNodeSocketTemplate sh_node_map_range_in[] = {
{SOCK_FLOAT, N_("Value"), 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, PROP_NONE},
{SOCK_FLOAT, N_("From Min"), 0.0f, 1.0f, 1.0f, 1.0f, -10000.0f, 10000.0f, PROP_NONE},
{SOCK_FLOAT, N_("From Max"), 1.0f, 1.0f, 1.0f, 1.0f, -10000.0f, 10000.0f, PROP_NONE},
{SOCK_FLOAT, N_("To Min"), 0.0f, 1.0f, 1.0f, 1.0f, -10000.0f, 10000.0f, PROP_NONE},
{SOCK_FLOAT, N_("To Max"), 1.0f, 1.0f, 1.0f, 1.0f, -10000.0f, 10000.0f, PROP_NONE},
{SOCK_FLOAT, N_("Steps"), 4.0f, 1.0f, 1.0f, 1.0f, 0.0f, 10000.0f, PROP_NONE},
{-1, ""},
};
static bNodeSocketTemplate sh_node_map_range_out[] = {
{SOCK_FLOAT, N_("Result")},
{-1, ""},
};
static void node_shader_update_map_range(bNodeTree *UNUSED(ntree), bNode *node)
{
bNodeSocket *sockSteps = nodeFindSocket(node, SOCK_IN, "Steps");
nodeSetSocketAvailability(sockSteps, node->custom2 == NODE_MAP_RANGE_STEPPED);
}
static void node_shader_init_map_range(bNodeTree *UNUSED(ntree), bNode *node)
{
node->custom1 = true; /* use_clamp */
node->custom2 = NODE_MAP_RANGE_LINEAR; /* interpolation */
}
static int gpu_shader_map_range(GPUMaterial *mat,
bNode *node,
bNodeExecData *UNUSED(execdata),
GPUNodeStack *in,
GPUNodeStack *out)
{
static const char *names[] = {
[NODE_MAP_RANGE_LINEAR] = "map_range_linear",
[NODE_MAP_RANGE_STEPPED] = "map_range_stepped",
[NODE_MAP_RANGE_SMOOTHSTEP] = "map_range_smoothstep",
[NODE_MAP_RANGE_SMOOTHERSTEP] = "map_range_smootherstep",
};
int ret = 0;
if (node->custom2 < ARRAY_SIZE(names) && names[node->custom2]) {
ret = GPU_stack_link(mat, node, names[node->custom2], in, out);
}
else {
ret = GPU_stack_link(mat, node, "map_range_linear", in, out);
}
if (ret && node->custom1 &&
!ELEM(node->custom2, NODE_MAP_RANGE_SMOOTHSTEP, NODE_MAP_RANGE_SMOOTHERSTEP)) {
GPU_link(mat, "clamp_range", out[0].link, in[3].link, in[4].link, &out[0].link);
}
return ret;
}
void register_node_type_sh_map_range(void)
{
static bNodeType ntype;
sh_fn_node_type_base(&ntype, SH_NODE_MAP_RANGE, "Map Range", NODE_CLASS_CONVERTOR, 0);
node_type_socket_templates(&ntype, sh_node_map_range_in, sh_node_map_range_out);
node_type_init(&ntype, node_shader_init_map_range);
node_type_update(&ntype, node_shader_update_map_range);
node_type_gpu(&ntype, gpu_shader_map_range);
nodeRegisterType(&ntype);
}
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