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Arithmetic support for NodeItem and node implementation with arithmetic #4

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Bogdan Nagirniak merged 3 commits from BogdanNagirniak/blender:BLEN-512 into matx-export-material 2023-08-29 09:26:20 +02:00
Conversation 0 Commits 3 Files Changed 10 +178 -14
2 changed files with 178 additions and 14 deletions
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170
source/blender/nodes/shader/materialx/nodes/node_parser.cc
View File

@ -25,20 +25,27 @@ void NodeItem::set_input(const std::string &name, const NodeItem &item)
void NodeItem::set_input(const std::string &name, const MaterialX::ValuePtr value)
{
std::string mx_type = value->getTypeString();
if (value->isA<float>()) {
set_input(name, value->asA<float>(), "float");
set_input(name, value->asA<float>(), mx_type);
}
else if (value->isA<MaterialX::Vector2>()) {
set_input(name, value->asA<MaterialX::Vector2>(), mx_type);
}
else if (value->isA<MaterialX::Vector3>()) {
set_input(name, value->asA<MaterialX::Vector3>(), "vector3");
set_input(name, value->asA<MaterialX::Vector3>(), mx_type);
}
else if (value->isA<MaterialX::Vector4>()) {
set_input(name, value->asA<MaterialX::Vector4>(), "vector4");
set_input(name, value->asA<MaterialX::Vector4>(), mx_type);
}
else if (value->isA<MaterialX::Color3>()) {
set_input(name, value->asA<MaterialX::Color3>(), "color3");
set_input(name, value->asA<MaterialX::Color3>(), mx_type);
}
else if (value->isA<MaterialX::Color4>()) {
set_input(name, value->asA<MaterialX::Color4>(), "color4");
set_input(name, value->asA<MaterialX::Color4>(), mx_type);
}
else if (value->isA<std::string>()) {
set_input(name, value->asA<std::string>(), mx_type);
}
else {
BLI_assert_unreachable();
@ -55,25 +62,164 @@ NodeItem::operator bool() const
return value || node;
}
NodeItem NodeItem::to_color3()
NodeItem NodeItem::operator+(const NodeItem &other)
{
return arithmetic(other, "add", [](float a, float b) { return a + b; });
}
NodeItem NodeItem::operator-(const NodeItem &other)
{
return arithmetic(other, "subtract", [](float a, float b) { return a - b; });
}
NodeItem NodeItem::operator*(const NodeItem &other)
{
return arithmetic(other, "multiply", [](float a, float b) { return a * b; });
}
NodeItem NodeItem::operator/(const NodeItem &other)
{
return arithmetic(other, "divide", [](float a, float b) { return b == 0.0f ? 0.0f : a / b; });
}
NodeItem NodeItem::to_color3() const
{
NodeItem res(graph_);
if (value) {
MaterialX::Color3 c;
if (value->isA<float>()) {
float v = value->asA<float>();
c = {v, v ,v};
}
else if (value->isA<MaterialX::Color3>()) {
auto v = value->asA<MaterialX::Color3>();
c = {v[0], v[1], v[2]};
}
else if (value->isA<MaterialX::Color4>()) {
auto v = value->asA<MaterialX::Color4>();
c = {v[0], v[1], v[2]};
}
else if (value->isA<MaterialX::Vector3>()) {
auto v = value->asA<MaterialX::Vector3>();
c = {v[0], v[1], v[2]};
}
else if (value->isA<MaterialX::Vector4>()) {
auto v = value->asA<MaterialX::Vector4>();
c = {v[0], v[1], v[2]};
}
else {
/* Default color */
c = {0.0f, 0.0f, 0.0f};
}
res.value = MaterialX::Value::createValue<MaterialX::Color3>(c);
}
else if (node) {
res.node = node;
}
return res;
}
NodeItem NodeItem::arithmetic(const std::string &mx_category, std::function<float(float)> func)
{
std::string t = value ? value->getTypeString() : node->getType();
NodeItem res(graph_);
if (value) {
if (value->isA<float>()) {
float v = value->asA<float>();
res.value = MaterialX::Value::createValue<MaterialX::Color3>(MaterialX::Color3(v, v, v));
res.value = MaterialX::Value::createValue<float>(func(v));
}
else if (value->isA<MaterialX::Color3>()) {
res.value = value;
auto v = value->asA<MaterialX::Color3>();
res.value = MaterialX::Value::createValue<MaterialX::Color3>(
{func(v[0]), func(v[1]), func(v[2])});
}
else if (value->isA<MaterialX::Color4>()) {
auto c = value->asA<MaterialX::Color4>();
auto v = value->asA<MaterialX::Color4>();
res.value = MaterialX::Value::createValue<MaterialX::Color4>(
{func(v[0]), func(v[1]), func(v[2]), func(v[3])});
}
else if (value->isA<MaterialX::Vector2>()) {
auto v = value->asA<MaterialX::Vector2>();
res.value = MaterialX::Value::createValue<MaterialX::Vector2>({func(v[0]), func(v[1])});
}
else if (value->isA<MaterialX::Vector3>()) {
auto v = value->asA<MaterialX::Vector3>();
res.value = MaterialX::Value::createValue<MaterialX::Vector3>(
{func(v[0]), func(v[1]), func(v[2])});
}
else if (value->isA<MaterialX::Vector4>()) {
auto v = value->asA<MaterialX::Vector4>();
res.value = MaterialX::Value::createValue<MaterialX::Vector4>(
{func(v[0]), func(v[1]), func(v[2]), func(v[3])});
}
else {
/* Nothing change */
res.value = value;
}
}
else {
res.node = graph_->addNode(mx_category, MaterialX::EMPTY_STRING, t);
res.set_input("in", *this);
}
return res;
}
NodeItem NodeItem::arithmetic(const NodeItem &other,
const std::string &mx_category,
std::function<float(float, float)> func)
{
std::string t1 = value ? value->getTypeString() : node->getType();
std::string t2 = other.value ? other.value->getTypeString() : other.node->getType();
if (t1 != t2) {
return *this;
}
NodeItem res(graph_);
if (value && other.value) {
if (value->isA<float>()) {
float v1 = value->asA<float>();
float v2 = other.value->asA<float>();
res.value = MaterialX::Value::createValue<float>(func(v1, v2));
}
else if (value->isA<MaterialX::Color3>()) {
auto v1 = value->asA<MaterialX::Color3>();
auto v2 = other.value->asA<MaterialX::Color3>();
res.value = MaterialX::Value::createValue<MaterialX::Color3>(
MaterialX::Color3(c[0], c[1], c[2]));
{func(v1[0], v2[0]), func(v1[1], v2[1]), func(v1[2], v2[2])});
}
else if (value->isA<MaterialX::Color4>()) {
auto v1 = value->asA<MaterialX::Color4>();
auto v2 = other.value->asA<MaterialX::Color4>();
res.value = MaterialX::Value::createValue<MaterialX::Color4>(
{func(v1[0], v2[0]), func(v1[1], v2[1]), func(v1[2], v2[2]), func(v1[3], v2[3])});
}
else if (value->isA<MaterialX::Vector2>()) {
auto v1 = value->asA<MaterialX::Vector2>();
auto v2 = other.value->asA<MaterialX::Vector2>();
res.value = MaterialX::Value::createValue<MaterialX::Vector2>(
{func(v1[0], v2[0]), func(v1[1], v2[1])});
}
else if (value->isA<MaterialX::Vector3>()) {
auto v1 = value->asA<MaterialX::Vector3>();
auto v2 = other.value->asA<MaterialX::Vector3>();
res.value = MaterialX::Value::createValue<MaterialX::Vector3>(
{func(v1[0], v2[0]), func(v1[1], v2[1]), func(v1[2], v2[2])});
}
else if (value->isA<MaterialX::Vector4>()) {
auto v1 = value->asA<MaterialX::Vector4>();
auto v2 = other.value->asA<MaterialX::Vector4>();
res.value = MaterialX::Value::createValue<MaterialX::Vector4>(
{func(v1[0], v2[0]), func(v1[1], v2[1]), func(v1[2], v2[2]), func(v1[3], v2[3])});
}
else {
/* default color */
res.value = value;
}
}
else if (node) {
res.node = node;
else {
res.node = graph_->addNode(mx_category, MaterialX::EMPTY_STRING, t1);
res.set_input("in1", *this);
res.set_input("in2", other);
}
return res;
}

20
source/blender/nodes/shader/materialx/nodes/node_parser.h
View File

@ -31,8 +31,19 @@ class NodeItem {
void set_input(const std::string &name, const MaterialX::NodePtr node);
operator bool() const;
template<class T> NodeItem &operator=(const T &value);
NodeItem operator+(const NodeItem &other);
NodeItem operator-(const NodeItem &other);
NodeItem operator*(const NodeItem &other);
NodeItem operator/(const NodeItem &other);
NodeItem to_color3();
NodeItem to_color3() const;
private:
NodeItem arithmetic(const std::string &mx_category, std::function<float(float)> func);
NodeItem arithmetic(const NodeItem &other,
const std::string &mx_category,
std::function<float(float, float)> func);
};
template<class T>
@ -41,6 +52,13 @@ void NodeItem::set_input(const std::string &name, const T &value, const std::str
node->setInputValue(name, value, mx_type);
}
template<class T> NodeItem &NodeItem::operator=(const T &value)
{
this->value = MaterialX::Value::createValue<T>(value);
node = nullptr;
return *this;
}
class NodeParser {
public:
MaterialX::GraphElement *graph;