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Export other channels and parameters from texture nodes #16

Merged
Bogdan Nagirniak merged 8 commits from BogdanNagirniak/blender:matx-images-alpha-1 into matx-export-material 2023-09-08 18:28:56 +02:00
Conversation 0 Commits 8 Files Changed 7 +138 -47
7 changed files with 138 additions and 47 deletions
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10
source/blender/nodes/shader/materialx/nodes/math.cc
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@ -10,11 +10,13 @@ namespace blender::nodes::materialx {
NodeItem MathNodeParser::compute()
{
/* TODO: finish some math operations */
auto op = node_->custom1;
NodeMathOperation op = NodeMathOperation(node_->custom1);
NodeItem res = empty();
/* Single operand operations */
NodeItem x = get_input_value(0, NodeItem::Type::Any);
NodeItem x = get_input_value(0, NodeItem::Type::Float);
/* TODO: Seems we have to use average if Vector or Color are added */
switch (op) {
case NODE_MATH_SINE:
res = x.sin();
@ -82,7 +84,7 @@ NodeItem MathNodeParser::compute()
default: {
/* 2-operand operations */
NodeItem y = get_input_value(1, NodeItem::Type::Any);
NodeItem y = get_input_value(1, NodeItem::Type::Float);
switch (op) {
case NODE_MATH_ADD:
res = x + y;
@ -132,7 +134,7 @@ NodeItem MathNodeParser::compute()
default: {
/* 3-operand operations */
NodeItem z = get_input_value(2, NodeItem::Type::Any);
NodeItem z = get_input_value(2, NodeItem::Type::Float);
switch (op) {
case NODE_MATH_WRAP:
CLOG_WARN(LOG_MATERIALX_SHADER, "Unimplemented math operation %d", op);

18
source/blender/nodes/shader/materialx/nodes/node_item.cc
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@ -351,15 +351,6 @@ NodeItem NodeItem::exp() const
return arithmetic("exp", [](float a) { return std::expf(a); });
}
NodeItem NodeItem::extract(const int index) const
{
NodeItem res = empty();
res = create_node("extract", Type::Float);
res.set_input("in", *this);
res.set_input("index", val(index));
return res;
}
NodeItem NodeItem::convert(Type to_type) const
{
Type from_type = type();
@ -605,6 +596,15 @@ NodeItem NodeItem::if_else(CompareOp op,
return res;
}
NodeItem NodeItem::extract(const int index) const
{
NodeItem res = empty();
res = create_node("extract", Type::Float);
res.set_input("in", *this);
res.set_input("index", val(index));
return res;
}
NodeItem NodeItem::empty() const
{
return NodeItem(graph_);

13
source/blender/nodes/shader/materialx/nodes/node_parser.cc
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@ -9,6 +9,8 @@
namespace blender::nodes::materialx {
static const std::string TEXCOORD_NODE_NAME = "node_texcoord";
NodeParser::NodeParser(MaterialX::GraphElement *graph,
const Depsgraph *depsgraph,
const Material *material,
@ -79,6 +81,17 @@ NodeItem NodeParser::empty() const
return NodeItem(graph_);
}
NodeItem NodeParser::texcoord_node()
{
NodeItem res = empty();
res.node = graph_->getNode(TEXCOORD_NODE_NAME);
if (!res.node) {
res = create_node("texcoord", NodeItem::Type::Vector2);
res.node->setName(TEXCOORD_NODE_NAME);
}
return res;
}
NodeItem NodeParser::get_input_default(const bNodeSocket &socket, NodeItem::Type to_type)
{
NodeItem res = empty();

1
source/blender/nodes/shader/materialx/nodes/node_parser.h
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@ -42,6 +42,7 @@ class NodeParser {
NodeItem get_input_value(int index, NodeItem::Type to_type);
NodeItem empty() const;
template<class T> NodeItem val(const T &data) const;
NodeItem texcoord_node();
private:
NodeItem get_input_default(const bNodeSocket &socket, NodeItem::Type to_type);

23
source/blender/nodes/shader/materialx/nodes/tex_checker.cc
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@ -9,21 +9,20 @@ namespace blender::nodes::materialx {
NodeItem TexCheckerNodeParser::compute()
{
NodeItem vector = get_input_link("Vector", NodeItem::Type::Vector2);
NodeItem color1 = get_input_value("Color1", NodeItem::Type::Color3);
NodeItem color2 = get_input_value("Color2", NodeItem::Type::Color3);
if (!vector) {
vector = texcoord_node();
}
NodeItem value1 = val(1.0f);
NodeItem value2 = val(0.0f);
if (STREQ(socket_out_->name, "Color")) {
value1 = get_input_value("Color1", NodeItem::Type::Color4);
value2 = get_input_value("Color2", NodeItem::Type::Color4);
}
NodeItem scale = get_input_value("Scale", NodeItem::Type::Float);
if (!vector) {
vector = create_node("texcoord", NodeItem::Type::Vector2);
}
vector = (vector * scale) % val(2.0f);
NodeItem mix = (vector.extract(0).floor() + vector.extract(1).floor())
.if_else(NodeItem::CompareOp::Eq, val(1.0f), val(1.0f), val(0.0f));
NodeItem res = create_node("mix", NodeItem::Type::Color3);
res.set_input("fg", color1);
res.set_input("bg", color2);
res.set_input("mix", mix);
return res;
return (vector.extract(0).floor() + vector.extract(1).floor())
.if_else(NodeItem::CompareOp::Eq, val(1.0f), value1, value2);
}
} // namespace blender::nodes::materialx

44
source/blender/nodes/shader/materialx/nodes/tex_environment.cc
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@ -12,21 +12,49 @@ namespace blender::nodes::materialx {
NodeItem TexEnvironmentNodeParser::compute()
{
NodeItem res = val(MaterialX::Color4(1.0f, 0.0f, 1.0f, 1.0f));
Image *image = (Image *)node_->id;
NodeTexEnvironment *tex = static_cast<NodeTexEnvironment *>(node_->storage);
if (!image) {
return res;
}
NodeTexEnvironment *tex_env = 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. */
#ifdef WITH_HYDRA
image_path = io::hydra::cache_or_get_image_file(bmain, scene, image, &tex->iuser);
#endif
std::string image_path = io::hydra::cache_or_get_image_file(
bmain, scene, image, &tex_env->iuser);
NodeItem texcoord = create_node("texcoord", NodeItem::Type::Vector2);
NodeItem res = create_node("image", NodeItem::Type::Color3);
NodeItem vector = get_input_link("Vector", NodeItem::Type::Vector2);
if (!vector) {
vector = texcoord_node();
}
/* TODO: texcoords should be translated to spherical coordinates */
std::string filtertype;
switch (tex_env->interpolation) {
case SHD_INTERP_LINEAR:
filtertype = "linear";
break;
case SHD_INTERP_CLOSEST:
filtertype = "closest";
break;
case SHD_INTERP_CUBIC:
case SHD_INTERP_SMART:
filtertype = "cubic";
break;
default:
BLI_assert_unreachable();
}
res = create_node("image", NodeItem::Type::Color4);
res.set_input("file", image_path, NodeItem::Type::Filename);
res.set_input("texcoord", texcoord);
res.set_input("texcoord", vector);
res.set_input("filtertype", val(filtertype));
return res;
}

76
source/blender/nodes/shader/materialx/nodes/tex_image.cc
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@ -12,21 +12,69 @@ 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_);
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. */
#ifdef WITH_HYDRA
image_path = io::hydra::cache_or_get_image_file(bmain, scene, image, &tex->iuser);
#endif
NodeItem res = val(MaterialX::Color4(1.0f, 0.0f, 1.0f, 1.0f));
NodeItem texcoord = create_node("texcoord", NodeItem::Type::Vector2);
NodeItem res = create_node("image", NodeItem::Type::Color3);
res.set_input("file", image_path, NodeItem::Type::Filename);
res.set_input("texcoord", texcoord);
Image *image = (Image *)node_->id;
if (image) {
NodeTexImage *tex_image = static_cast<NodeTexImage *>(node_->storage);
Scene *scene = DEG_get_input_scene(depsgraph_);
Main *bmain = DEG_get_bmain(depsgraph_);
/* 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. */
std::string image_path = io::hydra::cache_or_get_image_file(
bmain, scene, image, &tex_image->iuser);
NodeItem vector = get_input_link("Vector", NodeItem::Type::Vector2);
if (!vector) {
vector = texcoord_node();
}
/* TODO: add math to vector depending of tex_image->projection */
std::string filtertype;
switch (tex_image->interpolation) {
case SHD_INTERP_LINEAR:
filtertype = "linear";
break;
case SHD_INTERP_CLOSEST:
filtertype = "closest";
break;
case SHD_INTERP_CUBIC:
case SHD_INTERP_SMART:
filtertype = "cubic";
break;
default:
BLI_assert_unreachable();
}
std::string addressmode;
switch (tex_image->extension) {
case SHD_IMAGE_EXTENSION_REPEAT:
addressmode = "periodic";
break;
case SHD_IMAGE_EXTENSION_EXTEND:
addressmode = "clamp";
break;
case SHD_IMAGE_EXTENSION_CLIP:
addressmode = "constant";
break;
case SHD_IMAGE_EXTENSION_MIRROR:
addressmode = "mirror";
break;
default:
BLI_assert_unreachable();
}
res = create_node("image", NodeItem::Type::Color4);
res.set_input("file", image_path, NodeItem::Type::Filename);
res.set_input("texcoord", vector);
res.set_input("filtertype", val(filtertype));
res.set_input("uaddressmode", val(addressmode));
res.set_input("vaddressmode", val(addressmode));
}
if (STREQ(socket_out_->name, "Alpha")) {
res = res.extract(3);
}
return res;
}