forked from blender/blender
Support group nodes #22
@ -149,10 +149,12 @@ if(WITH_MATERIALX)
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materialx/material.cc
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materialx/node_item.cc
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materialx/node_parser.cc
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materialx/group_nodes.cc
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materialx/material.h
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materialx/node_item.h
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materialx/node_parser.h
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materialx/group_nodes.h
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)
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list(APPEND LIB
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MaterialXCore
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65
source/blender/nodes/shader/materialx/group_nodes.cc
Normal file
65
source/blender/nodes/shader/materialx/group_nodes.cc
Normal file
@ -0,0 +1,65 @@
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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "node_parser.h"
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#include "group_nodes.h"
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namespace blender::nodes::materialx {
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NodeItem GroupNodeParser::compute()
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{
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NodeItem res = empty();
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const bNodeTree *ngroup = reinterpret_cast<const bNodeTree *>(node_->id);
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ngroup->ensure_topology_cache();
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const bNode *node_out = ngroup->group_output_node();
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if (!node_out) {
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return res;
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}
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std::string name = MaterialX::createValidName(node_->name); /* or ngroup->name */
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MaterialX::NodeGraphPtr group_graph = graph_->getChildOfType<MaterialX::NodeGraph>(name);
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if (!group_graph) {
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group_graph = graph_->addChild<MaterialX::NodeGraph>(name);
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}
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GroupOutputNodeParser parser(
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group_graph.get(), depsgraph_, material_, node_out, socket_out_, NodeItem::Type::Any);
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NodeItem out = parser.compute_full();
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res.node = group_graph;
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if (parser.output) {
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res = create_node("constant", out.type());
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res.set_input("value", parser.output);
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}
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return res;
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}
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NodeItem GroupOutputNodeParser::compute()
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{
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NodeItem res = get_input_link(socket_out_->index(), to_type_);
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if (res) {
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output = graph_->addOutput(MaterialX::EMPTY_STRING, NodeItem::type(res.type()));
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output->setValue(1.0f);
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}
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return res;
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}
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NodeItem GroupInputNodeParser::compute()
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{
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return empty();
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}
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NodeItem GroupInputNodeParser::compute_full()
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{
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CLOG_INFO(LOG_MATERIALX_SHADER,
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1,
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"%s [%d] => %s",
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node_->name,
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node_->typeinfo->type,
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NodeItem::type(to_type_).c_str());
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return compute();
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}
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} // namespace blender::nodes::materialx
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33
source/blender/nodes/shader/materialx/group_nodes.h
Normal file
33
source/blender/nodes/shader/materialx/group_nodes.h
Normal file
@ -0,0 +1,33 @@
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/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "node_parser.h"
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namespace blender::nodes::materialx {
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class GroupNodeParser : public NodeParser {
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public:
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using NodeParser::NodeParser;
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NodeItem compute() override;
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};
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class GroupOutputNodeParser : public NodeParser {
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public:
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MaterialX::OutputPtr output;
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public:
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using NodeParser::NodeParser;
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NodeItem compute() override;
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};
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class GroupInputNodeParser : public NodeParser {
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public:
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using NodeParser::NodeParser;
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NodeItem compute() override;
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NodeItem compute_full() override;
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};
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} // namespace blender::nodes::materialx
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@ -675,13 +675,15 @@ void NodeItem::set_input(const std::string &in_name, const NodeItem &item)
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}
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}
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void NodeItem::set_input(const std::string &in_name, MaterialX::OutputPtr output)
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{
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node->setConnectedOutput(in_name, output);
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}
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void NodeItem::set_input_output(const std::string &in_name,
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const NodeItem &item,
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const std::string &out_name)
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{
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if (!item.node) {
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BLI_assert_unreachable();
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}
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node->setConnectedNode(in_name, item.node);
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node->setConnectedOutput(in_name, item.node->getOutput(out_name));
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}
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@ -104,6 +104,7 @@ class NodeItem {
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/* Functions to set input and output */
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template<class T> void set_input(const std::string &in_name, const T &value, Type in_type);
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void set_input(const std::string &in_name, const NodeItem &item);
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void set_input(const std::string &in_name, MaterialX::OutputPtr output);
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void set_input_output(const std::string &in_name,
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const NodeItem &item,
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const std::string &out_name);
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@ -4,6 +4,8 @@
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#include "node_parser.h"
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#include "group_nodes.h"
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#include "BKE_node_runtime.hh"
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namespace blender::nodes::materialx {
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@ -54,7 +56,7 @@ NodeItem NodeParser::compute_full()
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return res;
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}
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std::string NodeParser::node_name()
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std::string NodeParser::node_name() const
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{
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std::string name = node_->name;
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if (node_->output_sockets().size() > 1) {
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@ -155,7 +157,7 @@ NodeItem NodeParser::get_input_link(const bNodeSocket &socket, NodeItem::Type to
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const bNode *from_node = link->fromnode;
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/* Passing NODE_REROUTE nodes */
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while (from_node->type == NODE_REROUTE) {
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while (from_node->is_reroute()) {
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link = from_node->input_socket(0).link;
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if (!(link && link->is_used())) {
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return empty();
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@ -163,6 +165,11 @@ NodeItem NodeParser::get_input_link(const bNodeSocket &socket, NodeItem::Type to
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from_node = link->fromnode;
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}
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if (from_node->is_group()) {
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return GroupNodeParser(graph_, depsgraph_, material_, from_node, link->fromsock, to_type)
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.compute_full();
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}
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if (!from_node->typeinfo->materialx_fn) {
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CLOG_WARN(LOG_MATERIALX_SHADER,
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"Unsupported node: %s [%d]",
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@ -38,7 +38,7 @@ class NodeParser {
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virtual NodeItem compute_full();
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protected:
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std::string node_name();
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std::string node_name() const;
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NodeItem create_node(const std::string &category, NodeItem::Type type);
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NodeItem get_input_default(const std::string &name, NodeItem::Type to_type);
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NodeItem get_input_default(int index, NodeItem::Type to_type);
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@ -260,7 +260,7 @@ static void sh_node_noise_build_multi_function(NodeMultiFunctionBuilder &builder
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NODE_SHADER_MATERIALX_BEGIN
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{
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NodeItem scale = get_input_value("Scale", NodeItem::Type::Float);
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NodeItem detail = get_input_value("Detail", NodeItem::Type::Float);
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NodeItem detail = get_input_default("Detail", NodeItem::Type::Float);
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NodeItem lacunarity = get_input_value("Lacunarity", NodeItem::Type::Float);
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NodeItem position = create_node("position", NodeItem::Type::Vector3);
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@ -268,9 +268,7 @@ NODE_SHADER_MATERIALX_BEGIN
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NodeItem res = create_node("fractal3d", NodeItem::Type::Color3);
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res.set_input("position", position);
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if (detail.value) {
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res.set_input("octaves", val(int(detail.value->asA<float>())));
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}
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res.set_input("lacunarity", lacunarity);
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return res;
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}
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