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Implement export of Math node. Continue other arithmetic support for NodeItem #6

Merged
Bogdan Nagirniak merged 9 commits from BogdanNagirniak/blender:matx-arithmetic into matx-export-material 2023-08-31 12:35:55 +02:00
9 changed files with 938 additions and 429 deletions

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@ -152,11 +152,13 @@ if(WITH_MATERIALX)
materialx/nodes/invert.cc
materialx/nodes/math.cc
materialx/nodes/mix_rgb.cc
materialx/nodes/node_item.cc
materialx/nodes/node_parser.cc
materialx/nodes/output_material.cc
materialx/nodes/tex_image.cc
materialx/material.h
materialx/nodes/node_item.h
materialx/nodes/node_parser.h
)
endif()

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@ -8,31 +8,16 @@ namespace blender::nodes::materialx {
NodeItem BSDFPrincipledNodeParser::compute()
{
auto enabled = [](NodeItem &val) -> bool {
if (val.node) {
return true;
}
if (!val.value) {
return false;
}
if (val.value->isA<float>()) {
return val.value->asA<float>() != 0.0f;
}
if (val.value->isA<MaterialX::Color4>()) {
auto c = val.value->asA<MaterialX::Color4>();
return c[0] != 0.0f || c[1] != 0.0f || c[2] != 0.0f;
}
return true;
};
NodeItem zero = value(0.0f);
/* Getting required inputs
* Note: if some inputs are not needed they won't be taken */
NodeItem base_color = get_input_value("Base Color");
NodeItem subsurface = get_input_value("Subsurface");
NodeItem subsurface_radius = empty_value();
NodeItem subsurface_color = empty_value();
if (enabled(subsurface)) {
NodeItem subsurface_radius = empty();
NodeItem subsurface_color = empty();
if (subsurface != zero) {
subsurface_radius = get_input_value("Subsurface Radius");
subsurface_color = get_input_value("Subsurface Color");
}
@ -42,33 +27,33 @@ NodeItem BSDFPrincipledNodeParser::compute()
// NodeItem specular_tint = get_input_value("Specular Tint");
NodeItem roughness = get_input_value("Roughness");
NodeItem anisotropic = empty_value();
NodeItem anisotropic_rotation = empty_value();
if (enabled(metallic)) {
NodeItem anisotropic = empty();
NodeItem anisotropic_rotation = empty();
if (metallic != zero) {
/* TODO: use Specular Tint input */
anisotropic = get_input_value("Anisotropic");
if (enabled(anisotropic)) {
if (anisotropic != zero) {
anisotropic_rotation = get_input_value("Anisotropic Rotation");
// anisotropic_rotation = 0.5 - (anisotropic_rotation % 1.0)
}
}
NodeItem sheen = get_input_value("Sheen");
// sheen_tint = empty_value();
// sheen_tint = empty();
// if enabled(sheen):
// sheen_tint = get_input_value("Sheen Tint");
NodeItem clearcoat = get_input_value("Clearcoat");
NodeItem clearcoat_roughness = empty_value();
if (enabled(clearcoat)) {
NodeItem clearcoat_roughness = empty();
if (clearcoat != zero) {
clearcoat_roughness = get_input_value("Clearcoat Roughness");
}
NodeItem ior = get_input_value("IOR");
NodeItem transmission = get_input_value("Transmission");
NodeItem transmission_roughness = empty_value();
if (enabled(transmission)) {
NodeItem transmission_roughness = empty();
if (transmission != zero) {
transmission_roughness = get_input_value("Transmission Roughness");
}
@ -90,11 +75,11 @@ NodeItem BSDFPrincipledNodeParser::compute()
res.set_input("normal", normal);
res.set_input("tangent", tangent);
if (enabled(metallic)) {
if (metallic != zero) {
res.set_input("metalness", metallic);
}
if (enabled(specular)) {
if (specular != zero) {
res.set_input("specular", specular);
res.set_input("specular_color", base_color.to_color3());
res.set_input("specular_roughness", roughness);
@ -103,26 +88,26 @@ NodeItem BSDFPrincipledNodeParser::compute()
res.set_input("specular_rotation", anisotropic_rotation);
}
if (enabled(transmission)) {
if (transmission != zero) {
res.set_input("transmission", transmission);
res.set_input("transmission_color", base_color.to_color3());
res.set_input("transmission_extra_roughness", transmission_roughness);
}
if (enabled(subsurface)) {
if (subsurface != zero) {
res.set_input("subsurface", subsurface);
res.set_input("subsurface_color", subsurface_color);
res.set_input("subsurface_radius", subsurface_radius);
res.set_input("subsurface_anisotropy", anisotropic);
}
if (enabled(sheen)) {
if (sheen != zero) {
res.set_input("sheen", sheen);
res.set_input("sheen_color", base_color.to_color3());
res.set_input("sheen_roughness", roughness);
}
if (enabled(clearcoat)) {
if (clearcoat != zero) {
res.set_input("coat", clearcoat);
res.set_input("coat_color", base_color.to_color3());
res.set_input("coat_roughness", clearcoat_roughness);
@ -132,7 +117,7 @@ NodeItem BSDFPrincipledNodeParser::compute()
res.set_input("coat_normal", clearcoat_normal);
}
if (enabled(emission)) {
if (emission != zero) {
res.set_input("emission", emission_strength);
res.set_input("emission_color", emission);
}

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@ -8,8 +8,164 @@ namespace blender::nodes::materialx {
NodeItem MathNodeParser::compute()
{
/* TODO: implement */
return empty_value();
/* TODO: finish some math operations */
auto op = node->custom1;
printf("%d\n", int(op));
NodeItem res = empty();
/* Single operand operations */
NodeItem x = get_input_value(0);
switch (op) {
case NODE_MATH_SINE:
res = x.sin();
break;
case NODE_MATH_COSINE:
res = x.cos();
break;
case NODE_MATH_TANGENT:
res = x.tan();
break;
case NODE_MATH_ARCSINE:
res = x.asin();
break;
case NODE_MATH_ARCCOSINE:
res = x.acos();
break;
case NODE_MATH_ARCTANGENT:
res = x.atan();
break;
case NODE_MATH_ROUND:
res = (x + value(0.5f)).floor();
break;
case NODE_MATH_ABSOLUTE:
res = x.abs();
break;
case NODE_MATH_FLOOR:
res = x.floor();
break;
case NODE_MATH_CEIL:
res = x.ceil();
break;
case NODE_MATH_FRACTION:
res = x % value(1.0f);
break;
case NODE_MATH_SQRT:
res = x.sqrt();
break;
case NODE_MATH_INV_SQRT:
res = value(1.0f) / x.sqrt();
break;
case NODE_MATH_SIGN:
res = x.sign();
break;
case NODE_MATH_EXPONENT:
res = x.exp();
break;
case NODE_MATH_RADIANS:
res = x * value(float(M_PI) / 180.0f);
break;
case NODE_MATH_DEGREES:
res = x * value(180.0f * float(M_1_PI));
break;
case NODE_MATH_SINH:
res = x.sinh();
break;
case NODE_MATH_COSH:
res = x.cosh();
break;
case NODE_MATH_TANH:
res = x.tanh();
break;
case NODE_MATH_TRUNC:
res = x.sign() * x.abs().floor();
break;
default: {
/* 2-operand operations */
NodeItem y = get_input_value(1);
switch (op) {
case NODE_MATH_ADD:
res = x + y;
break;
case NODE_MATH_SUBTRACT:
res = x - y;
break;
case NODE_MATH_MULTIPLY:
res = x * y;
break;
case NODE_MATH_DIVIDE:
res = x / y;
break;
case NODE_MATH_POWER:
res = x ^ y;
break;
case NODE_MATH_LOGARITHM:
res = x.ln() / y.ln();
break;
case NODE_MATH_MINIMUM:
res = x.min(y);
break;
case NODE_MATH_MAXIMUM:
res = x.max(y);
break;
case NODE_MATH_LESS_THAN:
res = x.if_else("<", y, value(1.0f), value(0.0f));
break;
case NODE_MATH_GREATER_THAN:
res = x.if_else(">", y, value(1.0f), value(0.0f));
break;
case NODE_MATH_MODULO:
res = x % y;
break;
case NODE_MATH_ARCTAN2:
res = x.atan2(y);
break;
case NODE_MATH_SNAP:
// res = ;
break;
case NODE_MATH_PINGPONG:
// res = ;
break;
case NODE_MATH_FLOORED_MODULO:
// res = ;
break;
default: {
/* 3-operand operations */
NodeItem z = get_input_value(2);
switch (op) {
case NODE_MATH_WRAP:
// res = ;
break;
case NODE_MATH_COMPARE:
res = z.if_else("<", (x - y).abs(), value(1.0f), value(0.0f));
break;
case NODE_MATH_MULTIPLY_ADD:
res = x * y + z;
break;
case NODE_MATH_SMOOTH_MIN:
// res = ;
break;
case NODE_MATH_SMOOTH_MAX:
// res = ;
break;
default:
BLI_assert_unreachable();
}
}
}
}
}
bool clamp_output = node->custom2 != 0;
if (clamp_output && res) {
res = res.clamp();
}
return res;
}
} // namespace blender::nodes::materialx

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@ -9,7 +9,7 @@ namespace blender::nodes::materialx {
NodeItem MixRGBNodeParser::compute()
{
/* TODO: implement */
return empty_value();
return empty();
}
} // namespace blender::nodes::materialx

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@ -0,0 +1,599 @@
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#include "node_item.h"
#include "BLI_assert.h"
#include "BLI_utildefines.h"
namespace blender::nodes::materialx {
NodeItem::NodeItem(MaterialX::GraphElement *graph) : graph_(graph) {}
NodeItem NodeItem::empty() const
{
return NodeItem(graph_);
}
void NodeItem::set_input(const std::string &name, const NodeItem &item)
{
if (item.value) {
set_input(name, item.value);
}
else if (item.node) {
set_input(name, item.node);
}
}
void NodeItem::set_input(const std::string &name, const MaterialX::ValuePtr value)
{
std::string mx_type = value->getTypeString();
if (mx_type == "float") {
set_input(name, value->asA<float>(), mx_type);
}
else if (mx_type == "integer") {
set_input(name, value->asA<int>(), mx_type);
}
else if (mx_type == "vector2") {
set_input(name, value->asA<MaterialX::Vector2>(), mx_type);
}
else if (mx_type == "vector3") {
set_input(name, value->asA<MaterialX::Vector3>(), mx_type);
}
else if (mx_type == "vector4") {
set_input(name, value->asA<MaterialX::Vector4>(), mx_type);
}
else if (mx_type == "color3") {
set_input(name, value->asA<MaterialX::Color3>(), mx_type);
}
else if (mx_type == "color4") {
set_input(name, value->asA<MaterialX::Color4>(), mx_type);
}
else if (mx_type == "string") {
set_input(name, value->asA<std::string>(), mx_type);
}
else {
BLI_assert_unreachable();
}
}
void NodeItem::set_input(const std::string &name, const MaterialX::NodePtr node)
{
this->node->setConnectedNode(name, node);
}
NodeItem::operator bool() const
{
return value || node;
}
NodeItem NodeItem::operator+(const NodeItem &other) const
{
return arithmetic(other, "add", [](float a, float b) { return a + b; });
}
NodeItem NodeItem::operator-(const NodeItem &other) const
{
return arithmetic(other, "subtract", [](float a, float b) { return a - b; });
}
NodeItem NodeItem::operator-() const
{
return val(0.0f) - *this;
}
NodeItem NodeItem::operator*(const NodeItem &other) const
{
return arithmetic(other, "multiply", [](float a, float b) { return a * b; });
}
NodeItem NodeItem::operator/(const NodeItem &other) const
{
return arithmetic(other, "divide", [](float a, float b) { return b == 0.0f ? 0.0f : a / b; });
}
NodeItem NodeItem::operator%(const NodeItem &other) const
{
return arithmetic(
other, "modulo", [](float a, float b) { return b == 0.0f ? 0.0f : std::fmodf(a, b); });
}
NodeItem NodeItem::operator^(const NodeItem &other) const
{
return arithmetic(other, "power", [](float a, float b) { return std::powf(a, b); });
}
bool NodeItem::operator==(const NodeItem &other) const
{
if (!*this) {
return !other;
}
if (!other) {
return !*this;
}
if (node && node == other.node) {
return true;
}
if ((node && other.value) || (value && other.node)) {
return false;
}
std::string mx_type;
auto val1 = value;
auto val2 = other.value;
if (!adjust_types(val1, val2, mx_type)) {
return false;
}
if (mx_type == "float") {
return val1->asA<float>() == val2->asA<float>();
}
if (mx_type == "color3") {
return val1->asA<MaterialX::Color3>() == val2->asA<MaterialX::Color3>();
}
if (mx_type == "color4") {
return val1->asA<MaterialX::Color4>() == val2->asA<MaterialX::Color4>();
}
if (mx_type == "vector2") {
return val1->asA<MaterialX::Vector2>() == val2->asA<MaterialX::Vector2>();
}
if (mx_type == "vector3") {
return val1->asA<MaterialX::Vector3>() == val2->asA<MaterialX::Vector3>();
}
if (mx_type == "vector4") {
return val1->asA<MaterialX::Vector4>() == val2->asA<MaterialX::Vector4>();
}
return false;
}
bool NodeItem::operator!=(const NodeItem &other) const
{
return !(*this == other);
}
NodeItem NodeItem::abs() const
{
return arithmetic("absval", [](float a) { return std::fabsf(a); });
}
NodeItem NodeItem::floor() const
{
return arithmetic("floor", [](float a) { return std::floorf(a); });
}
NodeItem NodeItem::ceil() const
{
return arithmetic("ceil", [](float a) { return std::ceilf(a); });
}
NodeItem NodeItem::min(const NodeItem &other) const
{
return arithmetic(other, "min", [](float a, float b) { return std::min(a, b); });
}
NodeItem NodeItem::max(const NodeItem &other) const
{
return arithmetic(other, "max", [](float a, float b) { return std::max(a, b); });
}
NodeItem NodeItem::dotproduct(const NodeItem &other) const
{
NodeItem d = arithmetic(other, "dotproduct", [](float a, float b) { return a * b; });
if (d.value) {
std::string mx_type = d.type();
float f = 0.0f;
if (mx_type == "float") {
f = value->asA<float>();
}
else if (mx_type == "color3") {
auto v = value->asA<MaterialX::Color3>();
f = v[0] + v[1] + v[2];
}
else if (mx_type == "color4") {
auto v = value->asA<MaterialX::Color4>();
f = v[0] + v[1] + v[2] + v[3];
}
else if (mx_type == "vector2") {
auto v = value->asA<MaterialX::Vector2>();
f = v[0] + v[1];
}
else if (mx_type == "vector3") {
auto v = value->asA<MaterialX::Vector3>();
f = v[0] + v[1] + v[2];
}
else if (mx_type == "vector4") {
auto v = value->asA<MaterialX::Vector4>();
f = v[0] + v[1] + v[2] + v[3];
}
d.value = MaterialX::Value::createValue(f);
}
return d;
}
NodeItem NodeItem::if_else(const std::string &condition,
const NodeItem &other,
const NodeItem &if_val,
const NodeItem &else_val) const
{
if (condition == "<") {
return other.if_else(">", *this, else_val, if_val);
}
if (condition == "<=") {
return other.if_else(">=", *this, else_val, if_val);
}
if (condition == "!=") {
return if_else("==", other, else_val, if_val);
}
NodeItem res = empty();
if (type() != "float" || other.type() != "float") {
return res;
}
auto val1 = if_val;
auto val2 = else_val;
std::string mx_type;
if (!adjust_types(val1, val2, mx_type)) {
return res;
}
std::function<bool(float, float)> func = nullptr;
std::string mx_category;
if (condition == ">") {
mx_category = "ifgreater";
func = [](float a, float b) { return a > b; };
}
else if (condition == ">=") {
mx_category = "ifgreatereq";
func = [](float a, float b) { return a >= b; };
}
else if (condition == "==") {
mx_category = "ifequal";
func = [](float a, float b) { return a == b; };
}
else {
BLI_assert_unreachable();
}
if (value && other.value) {
res = func(value->asA<float>(), other.value->asA<float>()) ? val1 : val2;
}
else {
res.node = graph_->addNode(mx_category, MaterialX::EMPTY_STRING, mx_type);
res.set_input("value1", *this);
res.set_input("value2", other);
res.set_input("in1", val1);
res.set_input("in2", val2);
}
return res;
}
NodeItem NodeItem::blend(const NodeItem &a, const NodeItem &b) const
{
return (val(1.0f) - *this) * a + *this * b;
}
NodeItem NodeItem::clamp(const NodeItem &min_val, const NodeItem &max_val) const
{
return min(max_val).max(min_val);
}
NodeItem NodeItem::clamp(float min_val, float max_val) const
{
return clamp(val(min_val), val(max_val));
}
NodeItem NodeItem::sin() const
{
return arithmetic("sin", [](float a) { return std::sinf(a); });
}
NodeItem NodeItem::cos() const
{
return arithmetic("cos", [](float a) { return std::cosf(a); });
}
NodeItem NodeItem::tan() const
{
return arithmetic("tan", [](float a) { return std::tanf(a); });
}
NodeItem NodeItem::asin() const
{
return arithmetic("asin", [](float a) { return std::asinf(a); });
}
NodeItem NodeItem::acos() const
{
return arithmetic("acos", [](float a) { return std::acosf(a); });
}
NodeItem NodeItem::atan() const
{
return arithmetic("atan", [](float a) { return std::atanf(a); });
}
NodeItem NodeItem::atan2(const NodeItem &other) const
{
return arithmetic(other, "atan2", [](float a, float b) { return std::atan2f(a, b); });
}
NodeItem NodeItem::sinh() const
{
return (exp() - (-*this).exp()) / val(2.0f);
}
NodeItem NodeItem::cosh() const
{
return (exp() - (-*this).exp()) / val(2.0f);
}
NodeItem NodeItem::tanh() const
{
return sinh() / cosh();
}
NodeItem NodeItem::ln() const
{
return arithmetic("ln", [](float a) { return std::logf(a); });
}
NodeItem NodeItem::sqrt() const
{
return arithmetic("sqrt", [](float a) { return std::sqrtf(a); });
}
NodeItem NodeItem::sign() const
{
return arithmetic("sign", [](float a) { return a < 0.0f ? -1.0f : (a == 0.0f ? 0.0f : 1.0f); });
}
NodeItem NodeItem::exp() const
{
return arithmetic("exp", [](float a) { return std::expf(a); });
}
NodeItem NodeItem::to_color3() const
{
std::string t = type();
NodeItem res = empty();
if (value) {
MaterialX::Color3 c;
if (t == "float") {
float v = value->asA<float>();
c = {v, v, v};
}
else if (t == "color3") {
auto v = value->asA<MaterialX::Color3>();
c = {v[0], v[1], v[2]};
}
else if (t == "color4") {
auto v = value->asA<MaterialX::Color4>();
c = {v[0], v[1], v[2]};
}
else if (t == "vector3") {
auto v = value->asA<MaterialX::Vector3>();
c = {v[0], v[1], v[2]};
}
else if (t == "vector4") {
auto v = value->asA<MaterialX::Vector4>();
c = {v[0], v[1], v[2]};
}
else {
return res;
}
res.value = MaterialX::Value::createValue<MaterialX::Color3>(c);
}
else if (node) {
if (t != "color3") {
return res;
}
res.node = node;
}
return res;
}
bool NodeItem::is_numeric() const
{
std::string t = type();
return ELEM(t, "float", "color3", "color4", "vector2", "vector3", "vector4");
}
std::string NodeItem::type() const
{
return value ? value->getTypeString() : node->getType();
}
NodeItem NodeItem::arithmetic(const std::string &mx_category,
std::function<float(float)> func) const
{
if (!is_numeric()) {
return empty();
}
std::string t = value ? value->getTypeString() : node->getType();
NodeItem res(graph_);
if (value) {
if (t == "float") {
float v = value->asA<float>();
res.value = MaterialX::Value::createValue<float>(func(v));
}
else if (t == "color3") {
auto v = value->asA<MaterialX::Color3>();
res.value = MaterialX::Value::createValue<MaterialX::Color3>(
{func(v[0]), func(v[1]), func(v[2])});
}
else if (t == "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 (t == "vector2") {
auto v = value->asA<MaterialX::Vector2>();
res.value = MaterialX::Value::createValue<MaterialX::Vector2>({func(v[0]), func(v[1])});
}
else if (t == "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 (t == "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 {
BLI_assert_unreachable();
}
}
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) const
{
NodeItem res = empty();
if (!is_numeric() || !other.is_numeric()) {
return res;
}
std::string mx_type;
if (value && other.value) {
auto val1 = value;
auto val2 = other.value;
if (!adjust_types(val1, val2, mx_type)) {
return res;
}
if (mx_type == "float") {
float v1 = val1->asA<float>();
float v2 = val2->asA<float>();
res.value = MaterialX::Value::createValue<float>(func(v1, v2));
}
else if (mx_type == "color3") {
auto v1 = val1->asA<MaterialX::Color3>();
auto v2 = val2->asA<MaterialX::Color3>();
res.value = MaterialX::Value::createValue<MaterialX::Color3>(
{func(v1[0], v2[0]), func(v1[1], v2[1]), func(v1[2], v2[2])});
}
else if (mx_type == "color4") {
auto v1 = val1->asA<MaterialX::Color4>();
auto v2 = val2->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 (mx_type == "vector2") {
auto v1 = val1->asA<MaterialX::Vector2>();
auto v2 = val2->asA<MaterialX::Vector2>();
res.value = MaterialX::Value::createValue<MaterialX::Vector2>(
{func(v1[0], v2[0]), func(v1[1], v2[1])});
}
else if (mx_type == "vector3") {
auto v1 = val1->asA<MaterialX::Vector3>();
auto v2 = val2->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 (mx_type == "vector4") {
auto v1 = val1->asA<MaterialX::Vector4>();
auto v2 = val2->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 {
BLI_assert_unreachable();
}
}
else {
auto val1 = *this;
auto val2 = other;
if (!adjust_types(val1, val2, mx_type)) {
return res;
}
res.node = graph_->addNode(mx_category, MaterialX::EMPTY_STRING, mx_type);
res.set_input("in1", val1);
res.set_input("in2", val2);
}
return res;
}
MaterialX::ValuePtr NodeItem::float_to_type(float v, std::string mx_type)
{
if (mx_type == "float") {
return MaterialX::Value::createValue<float>(v);
}
if (mx_type == "color3") {
return MaterialX::Value::createValue<MaterialX::Color3>({v, v, v});
}
if (mx_type == "color4") {
return MaterialX::Value::createValue<MaterialX::Color4>({v, v, v, 1.0f});
}
if (mx_type == "vector2") {
return MaterialX::Value::createValue<MaterialX::Vector2>({v, v});
}
if (mx_type == "vector3") {
return MaterialX::Value::createValue<MaterialX::Vector3>({v, v, v});
}
if (mx_type == "vector4") {
return MaterialX::Value::createValue<MaterialX::Vector4>({v, v, v, 1.0f});
}
BLI_assert_unreachable();
return nullptr;
}
bool NodeItem::adjust_types(MaterialX::ValuePtr &val1, MaterialX::ValuePtr &val2, std::string &mx_type)
{
std::string t1 = val1->getTypeString();
std::string t2 = val2->getTypeString();
if (t1 != t2) {
if (t1 == "float") {
val1 = float_to_type(val1->asA<float>(), t2);
mx_type = t2;
}
else if (t2 == "float") {
val2 = float_to_type(val2->asA<float>(), t1);
mx_type = t1;
}
else {
return false;
}
}
else {
mx_type = t1;
}
return true;
}
bool NodeItem::adjust_types(NodeItem &val1, NodeItem &val2, std::string &mx_type)
{
std::string t1 = val1.type();
std::string t2 = val2.type();
if (t1 != t2) {
if (val1.value && t1 == "float") {
val1.value = float_to_type(val1.value->asA<float>(), t2);
mx_type = t2;
}
else if (val2.value && t2 == "float") {
val2.value = float_to_type(val2.value->asA<float>(), t1);
mx_type = t1;
}
else {
return false;
}
}
else {
mx_type = t1;
}
return true;
}
} // namespace blender::nodes::materialx

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@ -0,0 +1,99 @@
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
#include <MaterialXCore/Node.h>
namespace blender::nodes::materialx {
class NodeItem {
public:
MaterialX::ValuePtr value;
MaterialX::NodePtr node;
private:
MaterialX::GraphElement *graph_;
public:
NodeItem(MaterialX::GraphElement *graph);
~NodeItem() = default;
NodeItem empty() const;
template<class T> NodeItem val(const T &data) const;
template<class T>
void set_input(const std::string &name, const T &value, const std::string &mx_type);
void set_input(const std::string &name, const NodeItem &item);
void set_input(const std::string &name, const MaterialX::ValuePtr value);
void set_input(const std::string &name, const MaterialX::NodePtr node);
operator bool() const;
NodeItem operator+(const NodeItem &other) const;
NodeItem operator-(const NodeItem &other) const;
NodeItem operator-() const;
NodeItem operator*(const NodeItem &other) const;
NodeItem operator/(const NodeItem &other) const;
NodeItem operator%(const NodeItem &other) const;
NodeItem operator^(const NodeItem &other) const;
bool operator==(const NodeItem &other) const;
bool operator!=(const NodeItem &other) const;
NodeItem abs() const;
NodeItem floor() const;
NodeItem ceil() const;
NodeItem min(const NodeItem &other) const;
NodeItem max(const NodeItem &other) const;
NodeItem dotproduct(const NodeItem &other) const;
NodeItem if_else(const std::string &condition,
const NodeItem &other,
const NodeItem &if_val,
const NodeItem &else_val) const;
NodeItem blend(const NodeItem &a, const NodeItem &b) const;
NodeItem clamp(const NodeItem &min_val, const NodeItem &max_val) const;
NodeItem clamp(float min_val = 0.0f, float max_val = 1.0f) const;
NodeItem sin() const;
NodeItem cos() const;
NodeItem tan() const;
NodeItem asin() const;
NodeItem acos() const;
NodeItem atan() const;
NodeItem atan2(const NodeItem &other) const;
NodeItem sinh() const;
NodeItem cosh() const;
NodeItem tanh() const;
NodeItem ln() const;
NodeItem sqrt() const;
NodeItem sign() const;
NodeItem exp() const;
NodeItem to_color3() const;
bool is_numeric() const;
std::string type() const;
private:
NodeItem arithmetic(const std::string &mx_category, std::function<float(float)> func) const;
NodeItem arithmetic(const NodeItem &other,
const std::string &mx_category,
std::function<float(float, float)> func) const;
static MaterialX::ValuePtr float_to_type(float v, std::string mx_type);
/* Functions for adjusting values to make equal types */
static bool adjust_types(MaterialX::ValuePtr &val1, MaterialX::ValuePtr &val2, std::string &mx_type);
static bool adjust_types(NodeItem &val1, NodeItem &val2, std::string &mx_type);
};
template<class T> NodeItem NodeItem::val(const T &data) const
{
NodeItem res(graph_);
res.value = MaterialX::Value::createValue<T>(data);
return res;
}
template<class T>
void NodeItem::set_input(const std::string &name, const T &value, const std::string &mx_type)
{
node->setInputValue(name, value, mx_type);
}
} // namespace blender::nodes::materialx

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@ -8,323 +8,6 @@
namespace blender::nodes::materialx {
NodeItem::NodeItem(MaterialX::GraphElement *graph) : graph_(graph) {}
NodeItem NodeItem::empty() const
{
return NodeItem(graph_);
}
void NodeItem::set_input(const std::string &name, const NodeItem &item)
{
if (item.value) {
set_input(name, item.value);
}
else if (item.node) {
set_input(name, item.node);
}
}
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>(), 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>(), mx_type);
}
else if (value->isA<MaterialX::Vector4>()) {
set_input(name, value->asA<MaterialX::Vector4>(), mx_type);
}
else if (value->isA<MaterialX::Color3>()) {
set_input(name, value->asA<MaterialX::Color3>(), mx_type);
}
else if (value->isA<MaterialX::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();
}
}
void NodeItem::set_input(const std::string &name, const MaterialX::NodePtr node)
{
this->node->setConnectedNode(name, node);
}
NodeItem::operator bool() const
{
return value || node;
}
NodeItem NodeItem::operator+(const NodeItem &other) const
{
return arithmetic(other, "add", [](float a, float b) { return a + b; });
}
NodeItem NodeItem::operator-(const NodeItem &other) const
{
return arithmetic(other, "subtract", [](float a, float b) { return a - b; });
}
NodeItem NodeItem::operator*(const NodeItem &other) const
{
return arithmetic(other, "multiply", [](float a, float b) { return a * b; });
}
NodeItem NodeItem::operator/(const NodeItem &other) const
{
return arithmetic(other, "divide", [](float a, float b) { return b == 0.0f ? 0.0f : a / b; });
}
bool NodeItem::operator==(const NodeItem &other) const
{
if (node && node == other.node) {
return true;
}
/* TODO: implement */
return false;
}
NodeItem NodeItem::min(const NodeItem &other) const
{
return arithmetic(other, "min", [](float a, float b) { return std::min(a, b); });
}
NodeItem NodeItem::max(const NodeItem &other) const
{
return arithmetic(other, "max", [](float a, float b) { return std::max(a, b); });
}
NodeItem NodeItem::blend(const NodeItem &a, const NodeItem &b) const
{
return (val(1.0f) - *this) * a + *this * b;
}
NodeItem NodeItem::to_color3() const
{
std::string t = type();
NodeItem res = empty();
if (value) {
MaterialX::Color3 c;
if (t == "float") {
float v = value->asA<float>();
c = {v, v, v};
}
else if (t == "color3") {
auto v = value->asA<MaterialX::Color3>();
c = {v[0], v[1], v[2]};
}
else if (t == "color4") {
auto v = value->asA<MaterialX::Color4>();
c = {v[0], v[1], v[2]};
}
else if (t == "vector3") {
auto v = value->asA<MaterialX::Vector3>();
c = {v[0], v[1], v[2]};
}
else if (t == "vector4") {
auto v = value->asA<MaterialX::Vector4>();
c = {v[0], v[1], v[2]};
}
else {
return res;
}
res.value = MaterialX::Value::createValue<MaterialX::Color3>(c);
}
else if (node) {
if (t != "color3") {
return res;
}
res.node = node;
}
return res;
}
bool NodeItem::is_numeric() const
{
std::string t = type();
return ELEM(t, "float", "color3", "color4", "vector2", "vector3", "vector4");
}
std::string NodeItem::type() const
{
return value ? value->getTypeString() : node->getType();
}
NodeItem NodeItem::arithmetic(const std::string &mx_category,
std::function<float(float)> func) const
{
if (!is_numeric()) {
return empty();
}
std::string t = value ? value->getTypeString() : node->getType();
NodeItem res(graph_);
if (value) {
if (t == "float") {
float v = value->asA<float>();
res.value = MaterialX::Value::createValue<float>(func(v));
}
else if (t == "color3") {
auto v = value->asA<MaterialX::Color3>();
res.value = MaterialX::Value::createValue<MaterialX::Color3>(
{func(v[0]), func(v[1]), func(v[2])});
}
else if (t == "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 (t == "vector2") {
auto v = value->asA<MaterialX::Vector2>();
res.value = MaterialX::Value::createValue<MaterialX::Vector2>({func(v[0]), func(v[1])});
}
else if (t == "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 (t == "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 {
BLI_assert_unreachable();
}
}
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) const
{
NodeItem res = empty();
if (!is_numeric() || !other.is_numeric()) {
return res;
}
std::string t1 = type();
std::string t2 = other.type();
if (value && other.value) {
std::string t = t1;
auto val1 = value;
auto val2 = other.value;
if (t1 != t2) {
if (t1 == "float") {
val1 = float_to_type(val1->asA<float>(), t2);
t = t2;
}
else if (t2 == "float") {
val2 = float_to_type(val2->asA<float>(), t1);
}
else {
return res;
}
}
if (t == "float") {
float v1 = val1->asA<float>();
float v2 = val2->asA<float>();
res.value = MaterialX::Value::createValue<float>(func(v1, v2));
}
else if (t == "color3") {
auto v1 = val1->asA<MaterialX::Color3>();
auto v2 = val2->asA<MaterialX::Color3>();
res.value = MaterialX::Value::createValue<MaterialX::Color3>(
{func(v1[0], v2[0]), func(v1[1], v2[1]), func(v1[2], v2[2])});
}
else if (t == "color4") {
auto v1 = val1->asA<MaterialX::Color4>();
auto v2 = val2->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 (t == "vector2") {
auto v1 = val1->asA<MaterialX::Vector2>();
auto v2 = val2->asA<MaterialX::Vector2>();
res.value = MaterialX::Value::createValue<MaterialX::Vector2>(
{func(v1[0], v2[0]), func(v1[1], v2[1])});
}
else if (t == "vector3") {
auto v1 = val1->asA<MaterialX::Vector3>();
auto v2 = val2->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 (t == "vector4") {
auto v1 = val1->asA<MaterialX::Vector4>();
auto v2 = val2->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 {
BLI_assert_unreachable();
}
}
else {
std::string t = t1;
auto val1 = *this;
auto val2 = other;
if (t1 != t2) {
if (val1.value && t1 == "float") {
val1.value = float_to_type(val1.value->asA<float>(), t2);
t = t2;
}
else if (val2.value && t2 == "float") {
val2.value = float_to_type(val2.value->asA<float>(), t1)