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MaterialX: add support for nodes #11

Merged
Bogdan Nagirniak merged 17 commits from matx-add-other-nodes into matx-export-material 2023-09-06 10:37:26 +02:00
Conversation 0 Commits 17 Files Changed 12 +185 -137
16 changed files with 185 additions and 137 deletions
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Showing only changes of commit 1bce0a1c11 - Show all commits

1
source/blender/nodes/shader/CMakeLists.txt
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@ -165,6 +165,7 @@ if(WITH_MATERIALX)
materialx/material.h
materialx/nodes/node_item.h
materialx/nodes/node_parser.h
materialx/nodes/output_material.h
)
list(APPEND LIB
MaterialXCore

46
source/blender/nodes/shader/materialx/material.cc
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@ -3,7 +3,7 @@
* SPDX-License-Identifier: GPL-2.0-or-later */
#include "material.h"
#include "nodes/node_parser.h"
#include "nodes/output_material.h"
#include <MaterialXFormat/XmlIo.h>
@ -17,43 +17,27 @@ namespace blender::nodes::materialx {
CLG_LOGREF_DECLARE_GLOBAL(LOG_MATERIALX_SHADER, "materialx.shader");
static void export_nodegraph(MaterialX::GraphElement *graph,
Depsgraph *depsgraph,
Material *material)
MaterialX::DocumentPtr export_to_materialx(Depsgraph *depsgraph,
Material *material,
const std::string &socket_name)
{
material->nodetree->ensure_topology_cache();
CLOG_INFO(LOG_MATERIALX_SHADER, 0, "Material: %s", material->id.name);
bNode *output_node = ntreeShaderOutputNode(material->nodetree, SHD_OUTPUT_ALL);
OutputMaterialNodeParser parser(graph, depsgraph, material, output_node);
parser.compute();
}
static void create_standard_surface(MaterialX::GraphElement *graph, Material *material)
{
MaterialX::NodePtr standard_surface = graph->addNode(
"standard_surface", MaterialX::EMPTY_STRING, "surfaceshader");
standard_surface->addInput("base", "float")->setValue(1.0);
standard_surface->addInput("base_color", "color3")
->setValue(MaterialX::Color3(material->r, material->g, material->b));
MaterialX::NodePtr surfacematerial = graph->addNode(
"surfacematerial", MaterialX::EMPTY_STRING, "material");
surfacematerial->addInput(standard_surface->getType(), standard_surface->getType())
->setNodeName(standard_surface->getName());
}
MaterialX::DocumentPtr export_to_materialx(Depsgraph *depsgraph, Material *material)
{
MaterialX::DocumentPtr doc = MaterialX::createDocument();
if (material->use_nodes) {
export_nodegraph(doc.get(), depsgraph, material);
material->nodetree->ensure_topology_cache();
bNode *output_node = ntreeShaderOutputNode(material->nodetree, SHD_OUTPUT_ALL);
OutputMaterialNodeParser(doc.get(), depsgraph, material, output_node).compute(socket_name);
}
else {
create_standard_surface(doc.get(), material);
OutputMaterialNodeParser(doc.get(), depsgraph, material, nullptr).compute_default();
}
std::string str = MaterialX::writeToXmlString(doc);
CLOG_INFO(LOG_MATERIALX_SHADER, 1, "Material: %s\n%s", material->id.name, str.c_str());
CLOG_INFO(LOG_MATERIALX_SHADER,
2,
"Material: %s\n%s",
material->id.name,
MaterialX::writeToXmlString(doc).c_str());
return doc;
}

4
source/blender/nodes/shader/materialx/material.h
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@ -15,6 +15,8 @@ namespace blender::nodes::materialx {
extern struct CLG_LogRef *LOG_MATERIALX_SHADER;
MaterialX::DocumentPtr export_to_materialx(Depsgraph *depsgraph, Material *material);
MaterialX::DocumentPtr export_to_materialx(Depsgraph *depsgraph,
Material *material,
const std::string &socket_name = "Surface");
} // namespace blender::nodes::materialx

4
source/blender/nodes/shader/materialx/nodes/bsdf_principled.cc
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@ -68,7 +68,7 @@ NodeItem BSDFPrincipledNodeParser::compute()
NodeItem tangent = get_input_link("Tangent");
/* Creating standard_surface */
NodeItem res = create_node("standard_surface", "surfaceshader", false);
NodeItem res = create_node("standard_surface", "surfaceshader");
res.set_input("base", 1.0, "float");
res.set_input("base_color", base_color.to_color3());
res.set_input("diffuse_roughness", roughness);
@ -90,9 +90,11 @@ NodeItem BSDFPrincipledNodeParser::compute()
res.set_input("specular_IOR", ior);
if (anisotropic) {
res.set_input("specular_anisotropy", anisotropic);
if (anisotropic_rotation) {
res.set_input("specular_rotation", anisotropic_rotation);
}
}
}
if (transmission != zero) {
res.set_input("transmission", transmission);

2
source/blender/nodes/shader/materialx/nodes/hueSatVal.cc
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@ -23,7 +23,7 @@ NodeItem HueSatValNodeParser::compute()
combine.set_input("in2", saturation);
combine.set_input("in3", val);
NodeItem res = create_node("hsvadjust", "color3", false);
NodeItem res = create_node("hsvadjust", "color3");
res.set_input("in", color.to_color3());
res.set_input("amount", combine);
return res;

4
source/blender/nodes/shader/materialx/nodes/math.cc
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@ -10,7 +10,7 @@ namespace blender::nodes::materialx {
NodeItem MathNodeParser::compute()
{
/* TODO: finish some math operations */
auto op = node->custom1;
auto op = node_->custom1;
NodeItem res = empty();
/* Single operand operations */
@ -158,7 +158,7 @@ NodeItem MathNodeParser::compute()
}
}
bool clamp_output = node->custom2 != 0;
bool clamp_output = node_->custom2 != 0;
if (clamp_output && res) {
res = res.clamp();
}

121
source/blender/nodes/shader/materialx/nodes/node_parser.cc
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@ -12,56 +12,59 @@ namespace blender::nodes::materialx {
NodeParser::NodeParser(MaterialX::GraphElement *graph,
const Depsgraph *depsgraph,
const Material *material,
const bNode *node)
: graph(graph), depsgraph(depsgraph), material(material), node(node)
const bNode *node,
const bNodeSocket *socket_out)
: graph_(graph), depsgraph_(depsgraph), material_(material), node_(node), socket_out_(socket_out)
{
}
NodeItem NodeParser::create_node(const std::string &mx_category,
const std::string &mx_type,
bool noname)
std::string NodeParser::node_name(const bNode *node, const bNodeSocket *socket_out)
{
return MaterialX::createValidName(node->output_sockets().size() <= 1 ?
std::string(node->name) :
std::string(node->name) + "_" + socket_out->name);
}
NodeItem NodeParser::create_node(const std::string &mx_category, const std::string &mx_type)
{
NodeItem res = empty();
res.node = graph->addNode(mx_category,
noname ? MaterialX::EMPTY_STRING :
MaterialX::createValidName(node->name),
mx_type);
res.node = graph_->addNode(mx_category, MaterialX::EMPTY_STRING, mx_type);
return res;
}
NodeItem NodeParser::get_input_default(const std::string &name)
{
return get_input_default(node->input_by_identifier(name));
return get_input_default(node_->input_by_identifier(name));
}
NodeItem NodeParser::get_input_default(int index)
{
return get_input_default(node->input_socket(index));
return get_input_default(node_->input_socket(index));
}
NodeItem NodeParser::get_input_link(const std::string &name)
{
return get_input_link(node->input_by_identifier(name));
return get_input_link(node_->input_by_identifier(name));
}
NodeItem NodeParser::get_input_link(int index)
{
return get_input_link(node->input_socket(index));
return get_input_link(node_->input_socket(index));
}
NodeItem NodeParser::get_input_value(const std::string &name)
{
return get_input_value(node->input_by_identifier(name));
return get_input_value(node_->input_by_identifier(name));
}
NodeItem NodeParser::get_input_value(int index)
{
return get_input_value(node->input_socket(index));
return get_input_value(node_->input_socket(index));
}
NodeItem NodeParser::empty() const
{
return NodeItem(graph);
return NodeItem(graph_);
}
NodeItem NodeParser::get_input_default(const bNodeSocket &socket)
@ -98,59 +101,49 @@ NodeItem NodeParser::get_input_link(const bNodeSocket &socket)
return res;
}
const bNode *in_node = link->fromnode;
const bNode *from_node = link->fromnode;
/* Passing NODE_REROUTE nodes */
while (in_node->type == NODE_REROUTE) {
link = in_node->input_socket(0).link;
while (from_node->type == NODE_REROUTE) {
link = from_node->input_socket(0).link;
if (!(link && link->is_used())) {
return res;
}
in_node = link->fromnode;
from_node = link->fromnode;
}
/* Getting required NodeParser object */
std::unique_ptr<NodeParser> parser;
switch (in_node->typeinfo->type) {
case SH_NODE_BSDF_PRINCIPLED:
parser = std::make_unique<BSDFPrincipledNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_INVERT:
parser = std::make_unique<InvertNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_HUE_SAT:
parser = std::make_unique<HueSatValNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_MATH:
parser = std::make_unique<MathNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_MIX_RGB_LEGACY:
parser = std::make_unique<MixRGBNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_NORMAL_MAP:
parser = std::make_unique<NormalMapNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_TEX_IMAGE:
parser = std::make_unique<TexImageNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_TEX_ENVIRONMENT:
parser = std::make_unique<TexEnvironmentNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_TEX_NOISE:
parser = std::make_unique<TexNoiseNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_TEX_CHECKER:
parser = std::make_unique<TexCheckerNodeParser>(graph, depsgraph, material, in_node);
break;
case SH_NODE_VECTOR_MATH:
parser = std::make_unique<VectorMathNodeParser>(graph, depsgraph, material, in_node);
break;
default:
CLOG_WARN(LOG_MATERIALX_SHADER, "Unsupported node: %s (%d)", in_node->name, in_node->type);
/* Checking if node was already computed */
res.node = graph_->getNode(node_name(from_node, link->fromsock));
if (res.node) {
return res;
}
res = parser->compute();
/* Computing from_node with required NodeParser object */
#define CASE_NODE_TYPE(type, T) \
case type: \
res = T(graph_, depsgraph_, material_, from_node, link->fromsock).compute_full(); \
break;
switch (from_node->typeinfo->type) {
CASE_NODE_TYPE(SH_NODE_BSDF_PRINCIPLED, BSDFPrincipledNodeParser)
CASE_NODE_TYPE(SH_NODE_HUE_SAT, HueSatValNodeParser)
CASE_NODE_TYPE(SH_NODE_INVERT, InvertNodeParser)
CASE_NODE_TYPE(SH_NODE_MATH, MathNodeParser)
CASE_NODE_TYPE(SH_NODE_MIX_RGB_LEGACY, MixRGBNodeParser)
CASE_NODE_TYPE(SH_NODE_NORMAL_MAP, NormalMapNodeParser)
CASE_NODE_TYPE(SH_NODE_TEX_CHECKER, TexCheckerNodeParser)
CASE_NODE_TYPE(SH_NODE_TEX_ENVIRONMENT, TexEnvironmentNodeParser)
CASE_NODE_TYPE(SH_NODE_TEX_IMAGE, TexImageNodeParser)
CASE_NODE_TYPE(SH_NODE_TEX_NOISE, TexNoiseNodeParser)
CASE_NODE_TYPE(SH_NODE_VECTOR_MATH, VectorMathNodeParser)
default:
CLOG_WARN(LOG_MATERIALX_SHADER,
"Unsupported node: %s [%d]",
from_node->name,
from_node->typeinfo->type);
}
return res;
}
@ -163,4 +156,14 @@ NodeItem NodeParser::get_input_value(const bNodeSocket &socket)
return res;
}
NodeItem NodeParser::compute_full()
{
CLOG_INFO(LOG_MATERIALX_SHADER, 1, "%s [%d]", node_->name, node_->typeinfo->type);
NodeItem res = compute();
if (res.node) {
res.node->setName(node_name(node_, socket_out_));
}
return res;
}
} // namespace blender::nodes::materialx

21
source/blender/nodes/shader/materialx/nodes/node_parser.h
View File

@ -13,25 +13,26 @@
namespace blender::nodes::materialx {
class NodeParser {
public:
MaterialX::GraphElement *graph;
const Depsgraph *depsgraph;
const Material *material;
const bNode *node;
protected:
MaterialX::GraphElement *graph_;
const Depsgraph *depsgraph_;
const Material *material_;
const bNode *node_;
const bNodeSocket *socket_out_;
public:
NodeParser(MaterialX::GraphElement *graph,
const Depsgraph *depsgraph,
const Material *material,
const bNode *node);
const bNode *node,
const bNodeSocket *socket_out);
virtual ~NodeParser() = default;
virtual NodeItem compute() = 0;
protected:
NodeItem create_node(const std::string &mx_category,
const std::string &mx_type,
bool noname = true);
static std::string node_name(const bNode *node, const bNodeSocket *socket_out);
NodeItem create_node(const std::string &mx_category, const std::string &mx_type);
NodeItem get_input_default(const std::string &name);
NodeItem get_input_default(int index);
NodeItem get_input_link(const std::string &name);
@ -45,6 +46,7 @@ class NodeParser {
NodeItem get_input_default(const bNodeSocket &socket);
NodeItem get_input_link(const bNodeSocket &socket);
NodeItem get_input_value(const bNodeSocket &socket);
NodeItem compute_full();
};
template<class T> NodeItem NodeParser::value(const T &data) const
@ -65,7 +67,6 @@ DECLARE_PARSER(InvertNodeParser)
DECLARE_PARSER(MathNodeParser)
DECLARE_PARSER(MixRGBNodeParser)
DECLARE_PARSER(NormalMapNodeParser)
DECLARE_PARSER(OutputMaterialNodeParser)
DECLARE_PARSER(TexCheckerNodeParser)
DECLARE_PARSER(TexEnvironmentNodeParser)
DECLARE_PARSER(TexImageNodeParser)

9
source/blender/nodes/shader/materialx/nodes/normal_map.cc
View File

@ -2,6 +2,7 @@
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#include "../material.h"
#include "node_parser.h"
namespace blender::nodes::materialx {
@ -9,11 +10,11 @@ namespace blender::nodes::materialx {
NodeItem NormalMapNodeParser::compute()
{
std::string default_space = "object";
NodeShaderNormalMap *normal_map_node = static_cast<NodeShaderNormalMap *>(node->storage);
NodeShaderNormalMap *normal_map_node = static_cast<NodeShaderNormalMap *>(node_->storage);
NodeItem color = get_input_value("Color");
NodeItem strength = get_input_value("Strength");
NodeItem res = create_node("normalmap", "vector3", false);
NodeItem res = create_node("normalmap", "vector3");
res.set_input("in", color.to_vector3());
res.set_input("scale", strength);
@ -29,8 +30,8 @@ NodeItem NormalMapNodeParser::compute()
CLOG_WARN(LOG_MATERIALX_SHADER,
"Ignoring unsupported Space: %d %s (%d), %s will be used",
normal_map_node->space,
node->name,
node->type,
node_->name,
node_->type,
default_space);
}
return res;

51
source/blender/nodes/shader/materialx/nodes/output_material.cc
View File

@ -2,19 +2,56 @@
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#include "node_parser.h"
#include "output_material.h"
namespace blender::nodes::materialx {
OutputMaterialNodeParser::OutputMaterialNodeParser(MaterialX::GraphElement *graph,
const Depsgraph *depsgraph,
const Material *material,
const bNode *node)
: NodeParser(graph, depsgraph, material, node, nullptr)
{
}
NodeItem OutputMaterialNodeParser::compute()
{
NodeItem node = empty();
NodeItem surface = get_input_link("Surface");
if (surface) {
node = create_node("surfacematerial", "material", false);
node.set_input("surfaceshader", surface);
return empty();
}
return node;
NodeItem OutputMaterialNodeParser::compute(const std::string &socket_name)
{
NodeItem surface = empty();
if (node_) {
surface = get_input_link(socket_name);
}
else {
surface = create_node("standard_surface", "surfaceshader");
surface.set_input("base_color", value(MaterialX::Color3(1.0f, 0.0f, 1.0f)));
}
NodeItem res = create_node("surfacematerial", "material");
res.node->setName(node_name(node_, nullptr));
res.set_input("surfaceshader", surface);
return res;
}
NodeItem OutputMaterialNodeParser::compute_default()
{
NodeItem surface = create_node("standard_surface", "surfaceshader");
surface.set_input("base_color", value(MaterialX::Color3(material_->r, material_->g, material_->b)));
surface.set_input("diffuse_roughness", value(material_->roughness));
if (material_->metallic > 0.0f) {
surface.set_input("metalness", value(material_->metallic));
}
if (material_->spec) {
surface.set_input("specular", value(material_->spec));
surface.set_input("specular_color", value(material_->spec));
surface.set_input("specular_roughness", value(material_->roughness));
}
NodeItem res = create_node("surfacematerial", "material");
res.node->setName("Material_Default");
res.set_input("surfaceshader", surface);
return res;
}
} // namespace blender::nodes::materialx

22
source/blender/nodes/shader/materialx/nodes/output_material.h Normal file
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@ -0,0 +1,22 @@
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
#include "node_parser.h"
namespace blender::nodes::materialx {
class OutputMaterialNodeParser : public NodeParser {
public:
OutputMaterialNodeParser(MaterialX::GraphElement *graph,
const Depsgraph *depsgraph,
const Material *material,
const bNode *node);
NodeItem compute() override;
NodeItem compute(const std::string &socket_name);
NodeItem compute_default();
};
} // namespace blender::nodes::materialx

11
source/blender/nodes/shader/materialx/nodes/tex_checker.cc
View File

@ -16,16 +16,11 @@ NodeItem TexCheckerNodeParser::compute()
float v = scale.value->asA<float>();
scale = value(MaterialX::Vector2(v, v));
}
/* Modifier to follow Cycles result */
scale = scale * value(4.0f);
NodeItem texcoord = create_node("texcoord", "vector2");
NodeItem place2d = create_node("place2d", "vector2");
place2d.set_input("texcoord", texcoord * scale);
/* TODO: fix offset:
* place2d.set_input("offset", offset); */
NodeItem separate = create_node("separate2", "multioutput");
separate.set_input("in", place2d);
separate.add_output("outx", "float");
@ -42,9 +37,9 @@ NodeItem TexCheckerNodeParser::compute()
NodeItem ifequal =
(modulo_x.floor() + modulo_y.floor()).if_else("==", value(1.0f), value(0.0f), value(1.0f));
NodeItem res = create_node("mix", "color3", false);
res.set_input("fg", color1.to_color3());
res.set_input("bg", color2.to_color3());
NodeItem res = create_node("mix", "color3");
res.set_input("bg", color1.to_color3());
res.set_input("fg", color2.to_color3());
res.set_input("mix", ifequal);
return res;
}

10
source/blender/nodes/shader/materialx/nodes/tex_environment.cc
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@ -12,10 +12,10 @@ namespace blender::nodes::materialx {
NodeItem TexEnvironmentNodeParser::compute()
{
Image *image = (Image *)node->id;
NodeTexEnvironment *tex = static_cast<NodeTexEnvironment *>(node->storage);
Scene *scene = DEG_get_input_scene(depsgraph);
Main *bmain = DEG_get_bmain(depsgraph);
Image *image = (Image *)node_->id;
NodeTexEnvironment *tex = static_cast<NodeTexEnvironment *>(node_->storage);
Scene *scene = DEG_get_input_scene(depsgraph_);
Main *bmain = DEG_get_bmain(depsgraph_);
std::string image_path;
/* TODO: What if Blender built without Hydra? Also io::hydra::cache_or_get_image_file contains
* pretty general code, so could be moved from bf_usd project. */
@ -24,7 +24,7 @@ NodeItem TexEnvironmentNodeParser::compute()
#endif
NodeItem texcoord = create_node("texcoord", "vector2");
NodeItem res = create_node("image", "color3", false);
NodeItem res = create_node("image", "color3");
res.set_input("file", image_path, "filename");
res.set_input("texcoord", texcoord);
return res;

10
source/blender/nodes/shader/materialx/nodes/tex_image.cc
View File

@ -12,10 +12,10 @@ namespace blender::nodes::materialx {
NodeItem TexImageNodeParser::compute()
{
Image *image = (Image *)node->id;
NodeTexImage *tex = static_cast<NodeTexImage *>(node->storage);
Scene *scene = DEG_get_input_scene(depsgraph);
Main *bmain = DEG_get_bmain(depsgraph);
Image *image = (Image *)node_->id;
NodeTexImage *tex = static_cast<NodeTexImage *>(node_->storage);
Scene *scene = DEG_get_input_scene(depsgraph_);
Main *bmain = DEG_get_bmain(depsgraph_);
std::string image_path;
/* TODO: What if Blender built without Hydra? Also io::hydra::cache_or_get_image_file contains
* pretty general code, so could be moved from bf_usd project. */
@ -24,7 +24,7 @@ NodeItem TexImageNodeParser::compute()
#endif
NodeItem texcoord = create_node("texcoord", "vector2");
NodeItem res = create_node("image", "color3", false);
NodeItem res = create_node("image", "color3");
res.set_input("file", image_path, "filename");
res.set_input("texcoord", texcoord);
return res;

2
source/blender/nodes/shader/materialx/nodes/tex_noise.cc
View File

@ -18,7 +18,7 @@ NodeItem TexNoiseNodeParser::compute()
NodeItem texcoord = create_node("position", "vector3");
NodeItem res = create_node("fractal3d", "color3", false);
NodeItem res = create_node("fractal3d", "color3");
res.set_input("position", texcoord * scale);
res.set_input("octaves", detail);
res.set_input("lacunarity", lacunarity);

2
source/blender/nodes/shader/materialx/nodes/vector_math.cc
View File

@ -10,7 +10,7 @@ namespace blender::nodes::materialx {
NodeItem VectorMathNodeParser::compute()
{
/* TODO: finish some math operations */
auto op = node->custom1;
auto op = node_->custom1;
NodeItem res = empty();
/* Single operand operations */