diff options
Diffstat (limited to 'source/blender/nodes/shader/nodes/node_shader_clamp.cc')
-rw-r--r-- | source/blender/nodes/shader/nodes/node_shader_clamp.cc | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/source/blender/nodes/shader/nodes/node_shader_clamp.cc b/source/blender/nodes/shader/nodes/node_shader_clamp.cc new file mode 100644 index 00000000000..1077f616a62 --- /dev/null +++ b/source/blender/nodes/shader/nodes/node_shader_clamp.cc @@ -0,0 +1,88 @@ +/* + * 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" + +/* **************** Clamp ******************** */ +static bNodeSocketTemplate sh_node_clamp_in[] = { + {SOCK_FLOAT, N_("Value"), 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, PROP_NONE}, + {SOCK_FLOAT, N_("Min"), 0.0f, 1.0f, 1.0f, 1.0f, -10000.0f, 10000.0f, PROP_NONE}, + {SOCK_FLOAT, N_("Max"), 1.0f, 1.0f, 1.0f, 1.0f, -10000.0f, 10000.0f, PROP_NONE}, + {-1, ""}, +}; +static bNodeSocketTemplate sh_node_clamp_out[] = { + {SOCK_FLOAT, N_("Result")}, + {-1, ""}, +}; + +static void node_shader_init_clamp(bNodeTree *UNUSED(ntree), bNode *node) +{ + node->custom1 = NODE_CLAMP_MINMAX; /* clamp type */ +} + +static int gpu_shader_clamp(GPUMaterial *mat, + bNode *node, + bNodeExecData *UNUSED(execdata), + GPUNodeStack *in, + GPUNodeStack *out) +{ + return (node->custom1 == NODE_CLAMP_MINMAX) ? GPU_stack_link(mat, node, "clamp_value", in, out) : + GPU_stack_link(mat, node, "clamp_range", in, out); +} + +static void sh_node_clamp_expand_in_mf_network(blender::nodes::NodeMFNetworkBuilder &builder) +{ + static blender::fn::CustomMF_SI_SI_SI_SO<float, float, float, float> minmax_fn{ + "Clamp (Min Max)", + [](float value, float min, float max) { return std::min(std::max(value, min), max); }}; + static blender::fn::CustomMF_SI_SI_SI_SO<float, float, float, float> range_fn{ + "Clamp (Range)", [](float value, float a, float b) { + if (a < b) { + return clamp_f(value, a, b); + } + else { + return clamp_f(value, b, a); + } + }}; + + int clamp_type = builder.bnode().custom1; + if (clamp_type == NODE_CLAMP_MINMAX) { + builder.set_matching_fn(minmax_fn); + } + else { + builder.set_matching_fn(range_fn); + } +} + +void register_node_type_sh_clamp(void) +{ + static bNodeType ntype; + + sh_fn_node_type_base(&ntype, SH_NODE_CLAMP, "Clamp", NODE_CLASS_CONVERTOR, 0); + node_type_socket_templates(&ntype, sh_node_clamp_in, sh_node_clamp_out); + node_type_init(&ntype, node_shader_init_clamp); + node_type_gpu(&ntype, gpu_shader_clamp); + ntype.expand_in_mf_network = sh_node_clamp_expand_in_mf_network; + + nodeRegisterType(&ntype); +} |