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Merge pull request #54660 from Chaosus/vs_particles_mesh_emitter

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Rémi Verschelde 2021-11-10 19:55:25 +01:00 committed by GitHub
commit a6412e132a
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8 changed files with 352 additions and 7 deletions
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17
doc/classes/VisualShaderNodeParticleMeshEmitter.xml Normal file
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@ -0,0 +1,17 @@
<?xml version="1.0" encoding="UTF-8" ?>
<class name="VisualShaderNodeParticleMeshEmitter" inherits="VisualShaderNodeParticleEmitter" version="4.0">
<brief_description>
</brief_description>
<description>
</description>
<tutorials>
</tutorials>
<members>
<member name="mesh" type="Mesh" setter="set_mesh" getter="get_mesh">
</member>
<member name="surface_index" type="int" setter="set_surface_index" getter="get_surface_index" default="0">
</member>
<member name="use_all_surfaces" type="bool" setter="set_use_all_surfaces" getter="is_use_all_surfaces" default="true">
</member>
</members>
</class>

1
editor/plugins/visual_shader_editor_plugin.cpp
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@ -4527,6 +4527,7 @@ VisualShaderEditor::VisualShaderEditor() {
add_options.push_back(AddOption("MultiplyByAxisAngle", "Particles", "Transform", "VisualShaderNodeParticleMultiplyByAxisAngle", "A node for help to multiply a position input vector by rotation using specific axis. Intended to work with emitters.", -1, VisualShaderNode::PORT_TYPE_VECTOR, TYPE_FLAGS_EMIT | TYPE_FLAGS_PROCESS | TYPE_FLAGS_COLLIDE, Shader::MODE_PARTICLES));
add_options.push_back(AddOption("BoxEmitter", "Particles", "Emitters", "VisualShaderNodeParticleBoxEmitter", "", -1, VisualShaderNode::PORT_TYPE_VECTOR, TYPE_FLAGS_EMIT, Shader::MODE_PARTICLES));
add_options.push_back(AddOption("MeshEmitter", "Particles", "Emitters", "VisualShaderNodeParticleMeshEmitter", "", -1, VisualShaderNode::PORT_TYPE_VECTOR, TYPE_FLAGS_EMIT, Shader::MODE_PARTICLES));
add_options.push_back(AddOption("RingEmitter", "Particles", "Emitters", "VisualShaderNodeParticleRingEmitter", "", -1, VisualShaderNode::PORT_TYPE_VECTOR, TYPE_FLAGS_EMIT, Shader::MODE_PARTICLES));
add_options.push_back(AddOption("SphereEmitter", "Particles", "Emitters", "VisualShaderNodeParticleSphereEmitter", "", -1, VisualShaderNode::PORT_TYPE_VECTOR, TYPE_FLAGS_EMIT, Shader::MODE_PARTICLES));

1
scene/register_scene_types.cpp
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@ -628,6 +628,7 @@ void register_scene_types() {
GDREGISTER_CLASS(VisualShaderNodeParticleSphereEmitter);
GDREGISTER_CLASS(VisualShaderNodeParticleBoxEmitter);
GDREGISTER_CLASS(VisualShaderNodeParticleRingEmitter);
GDREGISTER_CLASS(VisualShaderNodeParticleMeshEmitter);
GDREGISTER_CLASS(VisualShaderNodeParticleMultiplyByAxisAngle);
GDREGISTER_CLASS(VisualShaderNodeParticleConeVelocity);
GDREGISTER_CLASS(VisualShaderNodeParticleRandomness);

6
scene/resources/visual_shader.cpp
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@ -36,6 +36,11 @@
#include "visual_shader_particle_nodes.h"
#include "visual_shader_sdf_nodes.h"
String make_unique_id(VisualShader::Type p_type, int p_id, const String &p_name) {
static const char *typepf[VisualShader::TYPE_MAX] = { "vtx", "frg", "lgt", "start", "process", "collide", "start_custom", "process_custom", "sky", "fog" };
return p_name + "_" + String(typepf[p_type]) + "_" + itos(p_id);
}
bool VisualShaderNode::is_simple_decl() const {
return simple_decl;
}
@ -1829,6 +1834,7 @@ void VisualShader::_update_shader() const {
code += " vec3 __vec3_buff2;\n";
code += " float __scalar_buff1;\n";
code += " float __scalar_buff2;\n";
code += " int __scalar_ibuff;\n";
code += " vec3 __ndiff = normalize(__diff);\n\n";
}
if (has_start) {

2
scene/resources/visual_shader.h
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@ -697,4 +697,6 @@ public:
VisualShaderNodeGlobalExpression();
};
extern String make_unique_id(VisualShader::Type p_type, int p_id, const String &p_name);
#endif // VISUAL_SHADER_H

5
scene/resources/visual_shader_nodes.cpp
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@ -494,11 +494,6 @@ String VisualShaderNodeTexture::get_input_port_default_hint(int p_port) const {
return "";
}
static String make_unique_id(VisualShader::Type p_type, int p_id, const String &p_name) {
static const char *typepf[VisualShader::TYPE_MAX] = { "vtx", "frg", "lgt" };
return p_name + "_" + String(typepf[p_type]) + "_" + itos(p_id);
}
Vector<VisualShader::DefaultTextureParam> VisualShaderNodeTexture::get_default_texture_parameters(VisualShader::Type p_type, int p_id) const {
VisualShader::DefaultTextureParam dtp;
dtp.name = make_unique_id(p_type, p_id, "tex");

280
scene/resources/visual_shader_particle_nodes.cpp
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@ -30,6 +30,8 @@
#include "visual_shader_particle_nodes.h"
#include "core/core_string_names.h"
// VisualShaderNodeParticleEmitter
int VisualShaderNodeParticleEmitter::get_output_port_count() const {
@ -255,6 +257,283 @@ VisualShaderNodeParticleRingEmitter::VisualShaderNodeParticleRingEmitter() {
set_input_port_default_value(2, 0.0);
}
// VisualShaderNodeParticleMeshEmitter
String VisualShaderNodeParticleMeshEmitter::get_caption() const {
return "MeshEmitter";
}
int VisualShaderNodeParticleMeshEmitter::get_output_port_count() const {
return 2;
}
VisualShaderNodeParticleBoxEmitter::PortType VisualShaderNodeParticleMeshEmitter::get_output_port_type(int p_port) const {
switch (p_port) {
case 0:
return PORT_TYPE_VECTOR; // position
case 1:
return PORT_TYPE_VECTOR; // normal
}
return PORT_TYPE_SCALAR;
}
String VisualShaderNodeParticleMeshEmitter::get_output_port_name(int p_port) const {
switch (p_port) {
case 0:
return "position";
case 1:
return "normal";
}
return String();
}
int VisualShaderNodeParticleMeshEmitter::get_input_port_count() const {
return 0;
}
VisualShaderNodeParticleBoxEmitter::PortType VisualShaderNodeParticleMeshEmitter::get_input_port_type(int p_port) const {
return PORT_TYPE_SCALAR;
}
String VisualShaderNodeParticleMeshEmitter::get_input_port_name(int p_port) const {
return String();
}
String VisualShaderNodeParticleMeshEmitter::generate_global_per_node(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const {
String code;
if (mesh.is_valid()) {
code += "uniform sampler2D " + make_unique_id(p_type, p_id, "mesh_vx") + ";\n";
code += "uniform sampler2D " + make_unique_id(p_type, p_id, "mesh_nm") + ";\n";
}
return code;
}
String VisualShaderNodeParticleMeshEmitter::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
String code;
code += " __scalar_ibuff = int(__rand_from_seed(__seed) * 65535.0) % " + itos(position_texture->get_width()) + ";\n";
if (position_texture->get_width() == 0) {
code += " " + p_output_vars[0] + " = vec3(0.0);\n";
} else {
if (mode_2d) {
code += " " + p_output_vars[0] + " = vec3(";
code += "texelFetch(";
code += make_unique_id(p_type, p_id, "mesh_vx") + ", ";
code += "ivec2(__scalar_ibuff, 0), 0).xy, 0.0);\n";
} else {
code += " " + p_output_vars[0] + " = texelFetch(";
code += make_unique_id(p_type, p_id, "mesh_vx") + ", ";
code += "ivec2(__scalar_ibuff, 0), 0).xyz;\n";
}
}
if (normal_texture->get_width() == 0) {
code += " " + p_output_vars[1] + " = vec3(0.0);\n";
} else {
if (mode_2d) {
code += " " + p_output_vars[1] + " = vec3(";
code += "texelFetch(";
code += make_unique_id(p_type, p_id, "mesh_nm") + ", ";
code += "ivec2(__scalar_ibuff, 0), 0).xy, 0.0);\n";
} else {
code += " " + p_output_vars[1] + " = texelFetch(";
code += make_unique_id(p_type, p_id, "mesh_nm") + ", ";
code += "ivec2(__scalar_ibuff, 0), 0).xyz;\n";
}
}
return code;
}
Vector<VisualShader::DefaultTextureParam> VisualShaderNodeParticleMeshEmitter::get_default_texture_parameters(VisualShader::Type p_type, int p_id) const {
VisualShader::DefaultTextureParam dtp_vx;
dtp_vx.name = make_unique_id(p_type, p_id, "mesh_vx");
dtp_vx.param = position_texture;
VisualShader::DefaultTextureParam dtp_nm;
dtp_nm.name = make_unique_id(p_type, p_id, "mesh_nm");
dtp_nm.param = normal_texture;
Vector<VisualShader::DefaultTextureParam> ret;
ret.push_back(dtp_vx);
ret.push_back(dtp_nm);
return ret;
}
void VisualShaderNodeParticleMeshEmitter::update_texture() {
if (!mesh.is_valid()) {
return;
}
Vector<Vector3> vertices;
Vector<Vector3> normals;
if (use_all_surfaces) {
for (int i = 0; i < max_surface_index; i++) {
Array vertex_array = mesh->surface_get_arrays(i)[Mesh::ARRAY_VERTEX];
for (int j = 0; j < vertex_array.size(); j++) {
vertices.push_back((Vector3)vertex_array[j]);
}
Array normal_array = mesh->surface_get_arrays(i)[Mesh::ARRAY_NORMAL];
for (int j = 0; j < vertex_array.size(); j++) {
normals.push_back((Vector3)vertex_array[j]);
}
}
} else {
Array vertex_array = mesh->surface_get_arrays(surface_index)[Mesh::ARRAY_VERTEX];
for (int i = 0; i < vertex_array.size(); i++) {
vertices.push_back((Vector3)vertex_array[i]);
}
Array normal_array = mesh->surface_get_arrays(surface_index)[Mesh::ARRAY_NORMAL];
for (int i = 0; i < normal_array.size(); i++) {
normals.push_back((Vector3)normal_array[i]);
}
}
// vertices
{
Ref<Image> image;
image.instantiate();
image->create(vertices.size(), 1, false, Image::Format::FORMAT_RGBF);
for (int i = 0; i < vertices.size(); i++) {
Vector3 v = vertices[i];
image->set_pixel(i, 0, Color(v.x, v.y, v.z));
}
if (position_texture->get_width() != vertices.size()) {
position_texture->create_from_image(image);
} else {
position_texture->update(image);
}
}
// normals
{
Ref<Image> image;
image.instantiate();
image->create(normals.size(), 1, false, Image::Format::FORMAT_RGBF);
for (int i = 0; i < normals.size(); i++) {
Vector3 v = normals[i];
image->set_pixel(i, 0, Color(v.x, v.y, v.z));
}
if (normal_texture->get_width() != normals.size()) {
normal_texture->create_from_image(image);
} else {
normal_texture->update(image);
}
}
}
void VisualShaderNodeParticleMeshEmitter::set_mesh(Ref<Mesh> p_mesh) {
if (mesh == p_mesh) {
return;
}
if (p_mesh.is_valid()) {
max_surface_index = p_mesh->get_surface_count();
} else {
max_surface_index = 0;
}
if (mesh.is_valid()) {
Callable callable = callable_mp(this, &VisualShaderNodeParticleMeshEmitter::update_texture);
if (mesh->is_connected(CoreStringNames::get_singleton()->changed, callable)) {
mesh->disconnect(CoreStringNames::get_singleton()->changed, callable);
}
}
mesh = p_mesh;
if (mesh.is_valid()) {
Callable callable = callable_mp(this, &VisualShaderNodeParticleMeshEmitter::update_texture);
if (!mesh->is_connected(CoreStringNames::get_singleton()->changed, callable)) {
mesh->connect(CoreStringNames::get_singleton()->changed, callable);
}
}
emit_changed();
}
Ref<Mesh> VisualShaderNodeParticleMeshEmitter::get_mesh() const {
return mesh;
}
void VisualShaderNodeParticleMeshEmitter::set_use_all_surfaces(bool p_enabled) {
if (use_all_surfaces == p_enabled) {
return;
}
use_all_surfaces = p_enabled;
emit_changed();
}
bool VisualShaderNodeParticleMeshEmitter::is_use_all_surfaces() const {
return use_all_surfaces;
}
void VisualShaderNodeParticleMeshEmitter::set_surface_index(int p_surface_index) {
if (p_surface_index == surface_index || p_surface_index < 0 || p_surface_index >= max_surface_index) {
return;
}
surface_index = p_surface_index;
emit_changed();
}
int VisualShaderNodeParticleMeshEmitter::get_surface_index() const {
return surface_index;
}
Vector<StringName> VisualShaderNodeParticleMeshEmitter::get_editable_properties() const {
Vector<StringName> props = VisualShaderNodeParticleEmitter::get_editable_properties();
props.push_back("mesh");
props.push_back("use_all_surfaces");
if (!use_all_surfaces) {
props.push_back("surface_index");
}
return props;
}
Map<StringName, String> VisualShaderNodeParticleMeshEmitter::get_editable_properties_names() const {
Map<StringName, String> names = VisualShaderNodeParticleEmitter::get_editable_properties_names();
names.insert("mesh", TTR("Mesh"));
names.insert("use_all_surfaces", TTR("Use All Surfaces"));
if (!use_all_surfaces) {
names.insert("surface_index", TTR("Surface Index"));
}
return names;
}
void VisualShaderNodeParticleMeshEmitter::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_mesh", "mesh"), &VisualShaderNodeParticleMeshEmitter::set_mesh);
ClassDB::bind_method(D_METHOD("get_mesh"), &VisualShaderNodeParticleMeshEmitter::get_mesh);
ClassDB::bind_method(D_METHOD("set_use_all_surfaces", "enabled"), &VisualShaderNodeParticleMeshEmitter::set_use_all_surfaces);
ClassDB::bind_method(D_METHOD("is_use_all_surfaces"), &VisualShaderNodeParticleMeshEmitter::is_use_all_surfaces);
ClassDB::bind_method(D_METHOD("set_surface_index", "surface_index"), &VisualShaderNodeParticleMeshEmitter::set_surface_index);
ClassDB::bind_method(D_METHOD("get_surface_index"), &VisualShaderNodeParticleMeshEmitter::get_surface_index);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh"), "set_mesh", "get_mesh");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_all_surfaces"), "set_use_all_surfaces", "is_use_all_surfaces");
ADD_PROPERTY(PropertyInfo(Variant::INT, "surface_index"), "set_surface_index", "get_surface_index");
}
VisualShaderNodeParticleMeshEmitter::VisualShaderNodeParticleMeshEmitter() {
connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &VisualShaderNodeParticleMeshEmitter::update_texture));
position_texture.instantiate();
normal_texture.instantiate();
}
// VisualShaderNodeParticleMultiplyByAxisAngle
void VisualShaderNodeParticleMultiplyByAxisAngle::_bind_methods() {
@ -334,7 +613,6 @@ bool VisualShaderNodeParticleMultiplyByAxisAngle::is_degrees_mode() const {
Vector<StringName> VisualShaderNodeParticleMultiplyByAxisAngle::get_editable_properties() const {
Vector<StringName> props;
props.push_back("degrees_mode");
props.push_back("axis_amount");
return props;
}

47
scene/resources/visual_shader_particle_nodes.h
View file

@ -52,7 +52,7 @@ public:
bool is_mode_2d() const;
Vector<StringName> get_editable_properties() const override;
Map<StringName, String> get_editable_properties_names() const override;
virtual Map<StringName, String> get_editable_properties_names() const override;
bool is_show_prop_names() const override;
VisualShaderNodeParticleEmitter();
@ -106,6 +106,51 @@ public:
VisualShaderNodeParticleRingEmitter();
};
class VisualShaderNodeParticleMeshEmitter : public VisualShaderNodeParticleEmitter {
GDCLASS(VisualShaderNodeParticleMeshEmitter, VisualShaderNodeParticleEmitter);
Ref<Mesh> mesh;
bool use_all_surfaces = true;
int surface_index = 0;
int max_surface_index = 0;
Ref<ImageTexture> position_texture;
Ref<ImageTexture> normal_texture;
protected:
static void _bind_methods();
public:
virtual String get_caption() const override;
virtual int get_output_port_count() const override;
virtual PortType get_output_port_type(int p_port) const override;
virtual String get_output_port_name(int p_port) const override;
virtual int get_input_port_count() const override;
virtual PortType get_input_port_type(int p_port) const override;
virtual String get_input_port_name(int p_port) const override;
virtual String generate_global_per_node(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const override;
virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const override;
void update_texture();
void set_mesh(Ref<Mesh> p_mesh);
Ref<Mesh> get_mesh() const;
void set_use_all_surfaces(bool p_enabled);
bool is_use_all_surfaces() const;
void set_surface_index(int p_surface_index);
int get_surface_index() const;
Vector<StringName> get_editable_properties() const override;
Map<StringName, String> get_editable_properties_names() const override;
Vector<VisualShader::DefaultTextureParam> get_default_texture_parameters(VisualShader::Type p_type, int p_id) const override;
VisualShaderNodeParticleMeshEmitter();
};
class VisualShaderNodeParticleMultiplyByAxisAngle : public VisualShaderNode {
GDCLASS(VisualShaderNodeParticleMultiplyByAxisAngle, VisualShaderNode);
bool degrees_mode = true;