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Diffstat (limited to 'scene/resources/visual_shader_particle_nodes.cpp')
| -rw-r--r-- | scene/resources/visual_shader_particle_nodes.cpp | 1025 |
1 files changed, 1025 insertions, 0 deletions
diff --git a/scene/resources/visual_shader_particle_nodes.cpp b/scene/resources/visual_shader_particle_nodes.cpp new file mode 100644 index 0000000000..2250cf8d95 --- /dev/null +++ b/scene/resources/visual_shader_particle_nodes.cpp @@ -0,0 +1,1025 @@ +/*************************************************************************/ +/* visual_shader_particle_nodes.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#include "visual_shader_particle_nodes.h" + +// VisualShaderNodeParticleEmitter + +int VisualShaderNodeParticleEmitter::get_output_port_count() const { + return 1; +} + +VisualShaderNodeParticleEmitter::PortType VisualShaderNodeParticleEmitter::get_output_port_type(int p_port) const { + return PORT_TYPE_VECTOR; +} + +String VisualShaderNodeParticleEmitter::get_output_port_name(int p_port) const { + if (p_port == 0) { + return "position"; + } + return String(); +} + +VisualShaderNodeParticleEmitter::VisualShaderNodeParticleEmitter() { +} + +// VisualShaderNodeParticleSphereEmitter + +String VisualShaderNodeParticleSphereEmitter::get_caption() const { + return "SphereEmitter"; +} + +int VisualShaderNodeParticleSphereEmitter::get_input_port_count() const { + return 2; +} + +VisualShaderNodeParticleSphereEmitter::PortType VisualShaderNodeParticleSphereEmitter::get_input_port_type(int p_port) const { + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleSphereEmitter::get_input_port_name(int p_port) const { + if (p_port == 0) { + return "radius"; + } else if (p_port == 1) { + return "inner_radius"; + } + return String(); +} + +String VisualShaderNodeParticleSphereEmitter::generate_global_per_node(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const { + String code; + code += "vec3 __get_random_point_in_sphere(inout uint seed, float radius, float inner_radius) {\n"; + code += " return __get_random_unit_vec3(seed) * __randf_range(seed, inner_radius, radius);\n"; + code += "}\n\n"; + return code; +} + +String VisualShaderNodeParticleSphereEmitter::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 += " " + p_output_vars[0] + " = __get_random_point_in_sphere(__seed, " + (p_input_vars[0].is_empty() ? (String)get_input_port_default_value(0) : p_input_vars[0]) + ", " + (p_input_vars[1].is_empty() ? (String)get_input_port_default_value(1) : p_input_vars[1]) + ");\n"; + return code; +} + +VisualShaderNodeParticleSphereEmitter::VisualShaderNodeParticleSphereEmitter() { + set_input_port_default_value(0, 10.0); + set_input_port_default_value(1, 0.0); +} + +// VisualShaderNodeParticleBoxEmitter + +String VisualShaderNodeParticleBoxEmitter::get_caption() const { + return "BoxEmitter"; +} + +int VisualShaderNodeParticleBoxEmitter::get_input_port_count() const { + return 1; +} + +VisualShaderNodeParticleBoxEmitter::PortType VisualShaderNodeParticleBoxEmitter::get_input_port_type(int p_port) const { + if (p_port == 0) { + return PORT_TYPE_VECTOR; + } + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleBoxEmitter::get_input_port_name(int p_port) const { + if (p_port == 0) { + return "extents"; + } + return String(); +} + +String VisualShaderNodeParticleBoxEmitter::generate_global_per_node(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const { + String code; + code += "vec3 __get_random_point_in_box(inout uint seed, vec3 extents) {\n"; + code += " vec3 half_extents = extents / 2.0;\n"; + code += " return vec3(__randf_range(seed, -half_extents.x, half_extents.x), __randf_range(seed, -half_extents.y, half_extents.y), __randf_range(seed, -half_extents.z, half_extents.z));\n"; + code += "}\n\n"; + return code; +} + +String VisualShaderNodeParticleBoxEmitter::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 += " " + p_output_vars[0] + " = __get_random_point_in_box(__seed, " + (p_input_vars[0].is_empty() ? (String)get_input_port_default_value(0) : p_input_vars[0]) + ");\n"; + return code; +} + +VisualShaderNodeParticleBoxEmitter::VisualShaderNodeParticleBoxEmitter() { + set_input_port_default_value(0, Vector3(1.0, 1.0, 1.0)); +} + +// VisualShaderNodeParticleRingEmitter + +String VisualShaderNodeParticleRingEmitter::get_caption() const { + return "RingEmitter"; +} + +int VisualShaderNodeParticleRingEmitter::get_input_port_count() const { + return 3; +} + +VisualShaderNodeParticleRingEmitter::PortType VisualShaderNodeParticleRingEmitter::get_input_port_type(int p_port) const { + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleRingEmitter::get_input_port_name(int p_port) const { + if (p_port == 0) { + return "radius"; + } else if (p_port == 1) { + return "inner_radius"; + } else if (p_port == 2) { + return "height"; + } + return String(); +} + +String VisualShaderNodeParticleRingEmitter::generate_global_per_node(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const { + String code; + code += "vec3 __get_random_point_on_ring(inout uint seed, float radius, float inner_radius, float height) {\n"; + code += " float angle = __rand_from_seed(seed) * PI * 2.0;\n"; + code += " vec2 ring = vec2(sin(angle), cos(angle)) * __randf_range(seed, inner_radius, radius);\n"; + code += " return vec3(ring.x, __randf_range(seed, min(0.0, height), max(0.0, height)), ring.y);\n"; + code += "}\n\n"; + return code; +} + +String VisualShaderNodeParticleRingEmitter::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 = " " + p_output_vars[0] + " = __get_random_point_on_ring(__seed, " + (p_input_vars[0].is_empty() ? (String)get_input_port_default_value(0) : p_input_vars[0]) + ", " + (p_input_vars[1].is_empty() ? (String)get_input_port_default_value(1) : p_input_vars[1]) + ", " + (p_input_vars[2].is_empty() ? (String)get_input_port_default_value(2) : p_input_vars[2]) + ");\n"; + return code; +} + +VisualShaderNodeParticleRingEmitter::VisualShaderNodeParticleRingEmitter() { + set_input_port_default_value(0, 10.0); + set_input_port_default_value(1, 0.0); + set_input_port_default_value(2, 0.0); +} + +// VisualShaderNodeParticleMultiplyByAxisAngle + +void VisualShaderNodeParticleMultiplyByAxisAngle::_bind_methods() { + ClassDB::bind_method(D_METHOD("set_degrees_mode", "enabled"), &VisualShaderNodeParticleMultiplyByAxisAngle::set_degrees_mode); + ClassDB::bind_method(D_METHOD("is_degrees_mode"), &VisualShaderNodeParticleMultiplyByAxisAngle::is_degrees_mode); + + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "degrees_mode"), "set_degrees_mode", "is_degrees_mode"); +} + +String VisualShaderNodeParticleMultiplyByAxisAngle::get_caption() const { + return "MultiplyByAxisAngle"; +} + +int VisualShaderNodeParticleMultiplyByAxisAngle::get_input_port_count() const { + return 3; +} + +VisualShaderNodeParticleMultiplyByAxisAngle::PortType VisualShaderNodeParticleMultiplyByAxisAngle::get_input_port_type(int p_port) const { + if (p_port == 0 || p_port == 1) { // position, rotation_axis + return PORT_TYPE_VECTOR; + } + return PORT_TYPE_SCALAR; // angle (degrees/radians) +} + +String VisualShaderNodeParticleMultiplyByAxisAngle::get_input_port_name(int p_port) const { + if (p_port == 0) { + return "position"; + } + if (p_port == 1) { + return "axis"; + } + if (p_port == 2) { + if (degrees_mode) { + return "angle (degrees)"; + } else { + return "angle (radians)"; + } + } + return String(); +} + +bool VisualShaderNodeParticleMultiplyByAxisAngle::is_show_prop_names() const { + return true; +} + +int VisualShaderNodeParticleMultiplyByAxisAngle::get_output_port_count() const { + return 1; +} + +VisualShaderNodeParticleMultiplyByAxisAngle::PortType VisualShaderNodeParticleMultiplyByAxisAngle::get_output_port_type(int p_port) const { + return PORT_TYPE_VECTOR; +} + +String VisualShaderNodeParticleMultiplyByAxisAngle::get_output_port_name(int p_port) const { + return "position"; +} + +String VisualShaderNodeParticleMultiplyByAxisAngle::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; + if (degrees_mode) { + code += " " + p_output_vars[0] + " = __build_rotation_mat3(" + (p_input_vars[1].is_empty() ? ("vec3" + (String)get_input_port_default_value(1)) : p_input_vars[1]) + ", radians(" + (p_input_vars[2].is_empty() ? (String)get_input_port_default_value(2) : p_input_vars[2]) + ")) * " + (p_input_vars[0].is_empty() ? "vec3(0.0)" : p_input_vars[0]) + ";\n"; + } else { + code += " " + p_output_vars[0] + " = __build_rotation_mat3(" + (p_input_vars[1].is_empty() ? ("vec3" + (String)get_input_port_default_value(1)) : p_input_vars[1]) + ", " + (p_input_vars[2].is_empty() ? (String)get_input_port_default_value(2) : p_input_vars[2]) + ") * " + (p_input_vars[0].is_empty() ? "vec3(0.0)" : p_input_vars[0]) + ";\n"; + } + return code; +} + +void VisualShaderNodeParticleMultiplyByAxisAngle::set_degrees_mode(bool p_enabled) { + degrees_mode = p_enabled; + emit_changed(); +} + +bool VisualShaderNodeParticleMultiplyByAxisAngle::is_degrees_mode() const { + return degrees_mode; +} + +Vector<StringName> VisualShaderNodeParticleMultiplyByAxisAngle::get_editable_properties() const { + Vector<StringName> props; + props.push_back("degrees_mode"); + props.push_back("axis_amount"); + return props; +} + +VisualShaderNodeParticleMultiplyByAxisAngle::VisualShaderNodeParticleMultiplyByAxisAngle() { + set_input_port_default_value(1, Vector3(1, 0, 0)); + set_input_port_default_value(2, 0.0); +} + +// VisualShaderNodeParticleConeVelocity + +String VisualShaderNodeParticleConeVelocity::get_caption() const { + return "ConeVelocity"; +} + +int VisualShaderNodeParticleConeVelocity::get_input_port_count() const { + return 2; +} + +VisualShaderNodeParticleConeVelocity::PortType VisualShaderNodeParticleConeVelocity::get_input_port_type(int p_port) const { + if (p_port == 0) { + return PORT_TYPE_VECTOR; + } else if (p_port == 1) { + return PORT_TYPE_SCALAR; + } + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleConeVelocity::get_input_port_name(int p_port) const { + if (p_port == 0) { + return "direction"; + } else if (p_port == 1) { + return "spread(degrees)"; + } + return String(); +} + +int VisualShaderNodeParticleConeVelocity::get_output_port_count() const { + return 1; +} + +VisualShaderNodeParticleConeVelocity::PortType VisualShaderNodeParticleConeVelocity::get_output_port_type(int p_port) const { + return PORT_TYPE_VECTOR; +} + +String VisualShaderNodeParticleConeVelocity::get_output_port_name(int p_port) const { + if (p_port == 0) { + return "velocity"; + } + return String(); +} + +String VisualShaderNodeParticleConeVelocity::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 += " __radians = radians(" + (p_input_vars[1].is_empty() ? (String)get_input_port_default_value(1) : p_input_vars[1]) + ");\n"; + code += " __scalar_buff1 = __rand_from_seed_m1_p1(__seed) * __radians;\n"; + code += " __scalar_buff2 = __rand_from_seed_m1_p1(__seed) * __radians;\n"; + code += " __vec3_buff1 = " + (p_input_vars[0].is_empty() ? "vec3" + (String)get_input_port_default_value(0) : p_input_vars[0]) + ";\n"; + code += " __scalar_buff1 += __vec3_buff1.z != 0.0 ? atan(__vec3_buff1.x, __vec3_buff1.z) : sign(__vec3_buff1.x) * (PI / 2.0);\n"; + code += " __scalar_buff2 += __vec3_buff1.z != 0.0 ? atan(__vec3_buff1.y, abs(__vec3_buff1.z)) : (__vec3_buff1.x != 0.0 ? atan(__vec3_buff1.y, abs(__vec3_buff1.x)) : sign(__vec3_buff1.y) * (PI / 2.0));\n"; + code += " __vec3_buff1 = vec3(sin(__scalar_buff1), 0.0, cos(__scalar_buff1));\n"; + code += " __vec3_buff2 = vec3(0.0, sin(__scalar_buff2), cos(__scalar_buff2));\n"; + code += " __vec3_buff2.z = __vec3_buff2.z / max(0.0001, sqrt(abs(__vec3_buff2.z)));\n"; + code += " " + p_output_vars[0] + " = normalize(vec3(__vec3_buff1.x * __vec3_buff2.z, __vec3_buff2.y, __vec3_buff1.z * __vec3_buff2.z));\n"; + return code; +} + +VisualShaderNodeParticleConeVelocity::VisualShaderNodeParticleConeVelocity() { + set_input_port_default_value(0, Vector3(1, 0, 0)); + set_input_port_default_value(1, 45.0); +} + +// VisualShaderNodeParticleRandomness + +void VisualShaderNodeParticleRandomness::_bind_methods() { + ClassDB::bind_method(D_METHOD("set_op_type", "type"), &VisualShaderNodeParticleRandomness::set_op_type); + ClassDB::bind_method(D_METHOD("get_op_type"), &VisualShaderNodeParticleRandomness::get_op_type); + + ADD_PROPERTY(PropertyInfo(Variant::INT, "op_type", PROPERTY_HINT_ENUM, "Scalar,Vector"), "set_op_type", "get_op_type"); + + BIND_ENUM_CONSTANT(OP_TYPE_SCALAR); + BIND_ENUM_CONSTANT(OP_TYPE_VECTOR); + BIND_ENUM_CONSTANT(OP_TYPE_MAX); +} + +Vector<StringName> VisualShaderNodeParticleRandomness::get_editable_properties() const { + Vector<StringName> props; + props.push_back("op_type"); + return props; +} + +String VisualShaderNodeParticleRandomness::get_caption() const { + return "ParticleRandomness"; +} + +int VisualShaderNodeParticleRandomness::get_output_port_count() const { + return 1; +} + +VisualShaderNodeParticleRandomness::PortType VisualShaderNodeParticleRandomness::get_output_port_type(int p_port) const { + if (op_type == OP_TYPE_VECTOR) { + return PORT_TYPE_VECTOR; + } + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleRandomness::get_output_port_name(int p_port) const { + return "random"; +} + +int VisualShaderNodeParticleRandomness::get_input_port_count() const { + return 2; +} + +VisualShaderNodeParticleRandomness::PortType VisualShaderNodeParticleRandomness::get_input_port_type(int p_port) const { + if (op_type == OP_TYPE_VECTOR) { + return PORT_TYPE_VECTOR; + } + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleRandomness::get_input_port_name(int p_port) const { + if (p_port == 0) { + return "min"; + } else if (p_port == 1) { + return "max"; + } + return String(); +} + +String VisualShaderNodeParticleRandomness::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; + if (op_type == OP_TYPE_SCALAR) { + code += vformat(" %s = __randf_range(__seed, %s, %s);\n", p_output_vars[0], p_input_vars[0].is_empty() ? (String)get_input_port_default_value(0) : p_input_vars[0], p_input_vars[1].is_empty() ? (String)get_input_port_default_value(1) : p_input_vars[1]); + } else if (op_type == OP_TYPE_VECTOR) { + code += vformat(" %s = __randv_range(__seed, %s, %s);\n", p_output_vars[0], p_input_vars[0].is_empty() ? (String)get_input_port_default_value(0) : p_input_vars[0], p_input_vars[1].is_empty() ? (String)get_input_port_default_value(1) : p_input_vars[1]); + } + return code; +} + +void VisualShaderNodeParticleRandomness::set_op_type(OpType p_op_type) { + ERR_FAIL_INDEX((int)p_op_type, OP_TYPE_MAX); + if (p_op_type != op_type) { + if (p_op_type == OP_TYPE_SCALAR) { + set_input_port_default_value(0, 0.0); + set_input_port_default_value(1, 1.0); + } else { + set_input_port_default_value(0, Vector3(-1.0, -1.0, -1.0)); + set_input_port_default_value(1, Vector3(1.0, 1.0, 1.0)); + } + } + op_type = p_op_type; + emit_changed(); +} + +VisualShaderNodeParticleRandomness::OpType VisualShaderNodeParticleRandomness::get_op_type() const { + return op_type; +} + +VisualShaderNodeParticleRandomness::VisualShaderNodeParticleRandomness() { + set_input_port_default_value(0, 0.0); + set_input_port_default_value(1, 1.0); +} + +// VisualShaderNodeParticleAccelerator + +void VisualShaderNodeParticleAccelerator::_bind_methods() { + ClassDB::bind_method(D_METHOD("set_mode", "mode"), &VisualShaderNodeParticleAccelerator::set_mode); + ClassDB::bind_method(D_METHOD("get_mode"), &VisualShaderNodeParticleAccelerator::get_mode); + + ADD_PROPERTY(PropertyInfo(Variant::INT, "mode", PROPERTY_HINT_ENUM, "Linear,Radial,Tangential"), "set_mode", "get_mode"); + + BIND_ENUM_CONSTANT(MODE_LINEAR); + BIND_ENUM_CONSTANT(MODE_RADIAL) + BIND_ENUM_CONSTANT(MODE_TANGENTIAL); + BIND_ENUM_CONSTANT(MODE_MAX); +} + +Vector<StringName> VisualShaderNodeParticleAccelerator::get_editable_properties() const { + Vector<StringName> props; + props.push_back("mode"); + return props; +} + +String VisualShaderNodeParticleAccelerator::get_caption() const { + return "ParticleAccelerator"; +} + +int VisualShaderNodeParticleAccelerator::get_output_port_count() const { + return 1; +} + +VisualShaderNodeParticleAccelerator::PortType VisualShaderNodeParticleAccelerator::get_output_port_type(int p_port) const { + return PORT_TYPE_VECTOR; +} + +String VisualShaderNodeParticleAccelerator::get_output_port_name(int p_port) const { + return String(); +} + +int VisualShaderNodeParticleAccelerator::get_input_port_count() const { + return 3; +} + +VisualShaderNodeParticleAccelerator::PortType VisualShaderNodeParticleAccelerator::get_input_port_type(int p_port) const { + if (p_port == 0) { + return PORT_TYPE_VECTOR; + } else if (p_port == 1) { + return PORT_TYPE_SCALAR; + } else if (p_port == 2) { + return PORT_TYPE_VECTOR; + } + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleAccelerator::get_input_port_name(int p_port) const { + if (p_port == 0) { + return "amount"; + } else if (p_port == 1) { + return "randomness"; + } else if (p_port == 2) { + return "axis"; + } + return String(); +} + +String VisualShaderNodeParticleAccelerator::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; + switch (mode) { + case MODE_LINEAR: + code += " " + p_output_vars[0] + " = length(VELOCITY) > 0.0 ? " + "normalize(VELOCITY) * " + (p_input_vars[0].is_empty() ? "vec3" + (String)get_input_port_default_value(0) : p_input_vars[0]) + " * mix(1.0, __rand_from_seed(__seed), " + (p_input_vars[1].is_empty() ? (String)get_input_port_default_value(1) : p_input_vars[1]) + ") : vec3(0.0);\n"; + break; + case MODE_RADIAL: + code += " " + p_output_vars[0] + " = length(__diff) > 0.0 ? __ndiff * " + (p_input_vars[0].is_empty() ? "vec3" + (String)get_input_port_default_value(0) : p_input_vars[0]) + " * mix(1.0, __rand_from_seed(__seed), " + (p_input_vars[1].is_empty() ? (String)get_input_port_default_value(1) : p_input_vars[1]) + ") : vec3(0.0);\n"; + break; + case MODE_TANGENTIAL: + code += " __vec3_buff1 = cross(__ndiff, normalize(" + (p_input_vars[2].is_empty() ? "vec3" + (String)get_input_port_default_value(2) : p_input_vars[2]) + "));\n"; + code += " " + p_output_vars[0] + " = length(__vec3_buff1) > 0.0 ? normalize(__vec3_buff1) * (" + (p_input_vars[0].is_empty() ? "vec3" + (String)get_input_port_default_value(0) : p_input_vars[0]) + " * mix(1.0, __rand_from_seed(__seed), " + (p_input_vars[1].is_empty() ? (String)get_input_port_default_value(1) : p_input_vars[1]) + ")) : vec3(0.0);\n"; + break; + case MODE_MAX: + break; + default: + break; + } + + return code; +} + +void VisualShaderNodeParticleAccelerator::set_mode(Mode p_mode) { + mode = p_mode; + emit_changed(); +} + +VisualShaderNodeParticleAccelerator::Mode VisualShaderNodeParticleAccelerator::get_mode() const { + return mode; +} + +VisualShaderNodeParticleAccelerator::VisualShaderNodeParticleAccelerator() { + set_input_port_default_value(0, Vector3(1, 1, 1)); + set_input_port_default_value(1, 0.0); + set_input_port_default_value(2, Vector3(0, -9.8, 0)); +} + +// VisualShaderNodeParticleOutput + +String VisualShaderNodeParticleOutput::get_caption() const { + if (shader_type == VisualShader::TYPE_START) { + return "StartOutput"; + } else if (shader_type == VisualShader::TYPE_PROCESS) { + return "ProcessOutput"; + } else if (shader_type == VisualShader::TYPE_COLLIDE) { + return "CollideOutput"; + } else if (shader_type == VisualShader::TYPE_START_CUSTOM) { + return "CustomStartOutput"; + } else if (shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + return "CustomProcessOutput"; + } + return String(); +} + +int VisualShaderNodeParticleOutput::get_input_port_count() const { + if (shader_type == VisualShader::TYPE_START) { + return 8; + } else if (shader_type == VisualShader::TYPE_COLLIDE) { + return 5; + } else if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + return 6; + } else { // TYPE_PROCESS + return 7; + } + return 0; +} + +VisualShaderNodeParticleOutput::PortType VisualShaderNodeParticleOutput::get_input_port_type(int p_port) const { + switch (p_port) { + case 0: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + return PORT_TYPE_VECTOR; // custom.rgb + } + return PORT_TYPE_BOOLEAN; // active + case 1: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + break; // custom.a (scalar) + } + return PORT_TYPE_VECTOR; // velocity + case 2: + return PORT_TYPE_VECTOR; // color & velocity + case 3: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + return PORT_TYPE_VECTOR; // color + } + break; // alpha (scalar) + case 4: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + break; // alpha + } + if (shader_type == VisualShader::TYPE_PROCESS) { + break; // scale + } + if (shader_type == VisualShader::TYPE_COLLIDE) { + return PORT_TYPE_TRANSFORM; // transform + } + return PORT_TYPE_VECTOR; // position + case 5: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + return PORT_TYPE_TRANSFORM; // transform + } + if (shader_type == VisualShader::TYPE_PROCESS) { + return PORT_TYPE_VECTOR; // rotation_axis + } + break; // scale (scalar) + case 6: + if (shader_type == VisualShader::TYPE_START) { + return PORT_TYPE_VECTOR; // rotation_axis + } + break; + case 7: + break; // angle (scalar) + } + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleOutput::get_input_port_name(int p_port) const { + String port_name; + switch (p_port) { + case 0: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + port_name = "custom"; + break; + } + port_name = "active"; + break; + case 1: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + port_name = "custom_alpha"; + break; + } + port_name = "velocity"; + break; + case 2: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + port_name = "velocity"; + break; + } + port_name = "color"; + break; + case 3: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + port_name = "color"; + break; + } + port_name = "alpha"; + break; + case 4: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + port_name = "alpha"; + break; + } + if (shader_type == VisualShader::TYPE_PROCESS) { + port_name = "scale"; + break; + } + if (shader_type == VisualShader::TYPE_COLLIDE) { + port_name = "transform"; + break; + } + port_name = "position"; + break; + case 5: + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + port_name = "transform"; + break; + } + if (shader_type == VisualShader::TYPE_PROCESS) { + port_name = "rotation_axis"; + break; + } + port_name = "scale"; + break; + case 6: + if (shader_type == VisualShader::TYPE_PROCESS) { + port_name = "angle_in_radians"; + break; + } + port_name = "rotation_axis"; + break; + case 7: + port_name = "angle_in_radians"; + break; + default: + break; + } + if (!port_name.is_empty()) { + return port_name.capitalize(); + } + return String(); +} + +bool VisualShaderNodeParticleOutput::is_port_separator(int p_index) const { + if (shader_type == VisualShader::TYPE_START || shader_type == VisualShader::TYPE_PROCESS) { + String name = get_input_port_name(p_index); + return bool(name == "Scale"); + } + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + String name = get_input_port_name(p_index); + return bool(name == "Velocity"); + } + return false; +} + +String VisualShaderNodeParticleOutput::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; + String tab = " "; + + if (shader_type == VisualShader::TYPE_START_CUSTOM || shader_type == VisualShader::TYPE_PROCESS_CUSTOM) { + if (!p_input_vars[0].is_empty()) { // custom.rgb + code += tab + "CUSTOM.rgb = " + p_input_vars[0] + ";\n"; + } + if (!p_input_vars[1].is_empty()) { // custom.a + code += tab + "CUSTOM.a = " + p_input_vars[1] + ";\n"; + } + if (!p_input_vars[2].is_empty()) { // velocity + code += tab + "VELOCITY = " + p_input_vars[2] + ";\n"; + } + if (!p_input_vars[3].is_empty()) { // color.rgb + code += tab + "COLOR.rgb = " + p_input_vars[3] + ";\n"; + } + if (!p_input_vars[4].is_empty()) { // color.a + code += tab + "COLOR.a = " + p_input_vars[4] + ";\n"; + } + if (!p_input_vars[5].is_empty()) { // transform + code += tab + "TRANSFORM = " + p_input_vars[5] + ";\n"; + } + } else { + if (!p_input_vars[0].is_empty()) { // active (begin) + code += tab + "ACTIVE = " + p_input_vars[0] + ";\n"; + code += tab + "if(ACTIVE) {\n"; + tab += " "; + } + if (!p_input_vars[1].is_empty()) { // velocity + code += tab + "VELOCITY = " + p_input_vars[1] + ";\n"; + } + if (!p_input_vars[2].is_empty()) { // color + code += tab + "COLOR.rgb = " + p_input_vars[2] + ";\n"; + } + if (!p_input_vars[3].is_empty()) { // alpha + code += tab + "COLOR.a = " + p_input_vars[3] + ";\n"; + } + + // position + if (shader_type == VisualShader::TYPE_START) { + code += tab + "if (RESTART_POSITION) {\n"; + if (!p_input_vars[4].is_empty()) { + code += tab + " TRANSFORM = mat4(vec4(1.0, 0.0, 0.0, 0.0), vec4(0.0, 1.0, 0.0, 0.0), vec4(0.0, 0.0, 1.0, 0.0), vec4(" + p_input_vars[4] + ", 1.0));\n"; + } else { + code += tab + " TRANSFORM = mat4(vec4(1.0, 0.0, 0.0, 0.0), vec4(0.0, 1.0, 0.0, 0.0), vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0));\n"; + } + code += tab + " if (RESTART_VELOCITY) {\n"; + code += tab + " VELOCITY = (EMISSION_TRANSFORM * vec4(VELOCITY, 0.0)).xyz;\n"; + code += tab + " }\n"; + code += tab + " TRANSFORM = EMISSION_TRANSFORM * TRANSFORM;\n"; + code += tab + "}\n"; + } else if (shader_type == VisualShader::TYPE_COLLIDE) { // position + if (!p_input_vars[4].is_empty()) { + code += tab + "TRANSFORM = " + p_input_vars[4] + ";\n"; + } + } + + if (shader_type == VisualShader::TYPE_START || shader_type == VisualShader::TYPE_PROCESS) { + int scale = 5; + int rotation_axis = 6; + int rotation = 7; + if (shader_type == VisualShader::TYPE_PROCESS) { + scale = 4; + rotation_axis = 5; + rotation = 6; + } + String op; + if (shader_type == VisualShader::TYPE_START) { + op = "*="; + } else { + op = "="; + } + + if (!p_input_vars[rotation].is_empty()) { // rotation_axis & angle_in_radians + String axis; + if (p_input_vars[rotation_axis].is_empty()) { + axis = "vec3(0, 1, 0)"; + } else { + axis = p_input_vars[rotation_axis]; + } + code += tab + "TRANSFORM " + op + " __build_rotation_mat4(" + axis + ", " + p_input_vars[rotation] + ");\n"; + } + if (!p_input_vars[scale].is_empty()) { // scale + code += tab + "TRANSFORM " + op + " mat4(vec4(" + p_input_vars[scale] + ", 0, 0, 0), vec4(0, " + p_input_vars[scale] + ", 0, 0), vec4(0, 0, " + p_input_vars[scale] + ", 0), vec4(0, 0, 0, 1));\n"; + } + } + if (!p_input_vars[0].is_empty()) { // active (end) + code += " }\n"; + } + } + return code; +} + +VisualShaderNodeParticleOutput::VisualShaderNodeParticleOutput() { +} + +// EmitParticle + +Vector<StringName> VisualShaderNodeParticleEmit::get_editable_properties() const { + Vector<StringName> props; + props.push_back("flags"); + return props; +} + +void VisualShaderNodeParticleEmit::_bind_methods() { + ClassDB::bind_method(D_METHOD("set_flags", "flags"), &VisualShaderNodeParticleEmit::set_flags); + ClassDB::bind_method(D_METHOD("get_flags"), &VisualShaderNodeParticleEmit::get_flags); + + ADD_PROPERTY(PropertyInfo(Variant::INT, "flags", PROPERTY_HINT_FLAGS, "Position,RotScale,Velocity,Color,Custom"), "set_flags", "get_flags"); + + BIND_ENUM_CONSTANT(EMIT_FLAG_POSITION); + BIND_ENUM_CONSTANT(EMIT_FLAG_ROT_SCALE); + BIND_ENUM_CONSTANT(EMIT_FLAG_VELOCITY); + BIND_ENUM_CONSTANT(EMIT_FLAG_COLOR); + BIND_ENUM_CONSTANT(EMIT_FLAG_CUSTOM); +} + +String VisualShaderNodeParticleEmit::get_caption() const { + return "EmitParticle"; +} + +int VisualShaderNodeParticleEmit::get_input_port_count() const { + return 7; +} + +VisualShaderNodeParticleEmit::PortType VisualShaderNodeParticleEmit::get_input_port_type(int p_port) const { + switch (p_port) { + case 0: + return PORT_TYPE_BOOLEAN; + case 1: + return PORT_TYPE_TRANSFORM; + case 2: + return PORT_TYPE_VECTOR; + case 3: + return PORT_TYPE_VECTOR; + case 4: + return PORT_TYPE_SCALAR; + case 5: + return PORT_TYPE_VECTOR; + case 6: + return PORT_TYPE_SCALAR; + } + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleEmit::get_input_port_name(int p_port) const { + switch (p_port) { + case 0: + return "condition"; + case 1: + return "transform"; + case 2: + return "velocity"; + case 3: + return "color"; + case 4: + return "alpha"; + case 5: + return "custom"; + case 6: + return "custom_alpha"; + } + return String(); +} + +int VisualShaderNodeParticleEmit::get_output_port_count() const { + return 0; +} + +VisualShaderNodeParticleEmit::PortType VisualShaderNodeParticleEmit::get_output_port_type(int p_port) const { + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeParticleEmit::get_output_port_name(int p_port) const { + return String(); +} + +void VisualShaderNodeParticleEmit::add_flag(EmitFlags p_flag) { + flags |= p_flag; + emit_changed(); +} + +bool VisualShaderNodeParticleEmit::has_flag(EmitFlags p_flag) const { + return flags & p_flag; +} + +void VisualShaderNodeParticleEmit::set_flags(EmitFlags p_flags) { + flags = (int)p_flags; + emit_changed(); +} + +VisualShaderNodeParticleEmit::EmitFlags VisualShaderNodeParticleEmit::get_flags() const { + return EmitFlags(flags); +} + +bool VisualShaderNodeParticleEmit::is_show_prop_names() const { + return true; +} + +bool VisualShaderNodeParticleEmit::is_generate_input_var(int p_port) const { + if (p_port == 0) { + if (!is_input_port_connected(0)) { + return false; + } + } + return true; +} + +String VisualShaderNodeParticleEmit::get_input_port_default_hint(int p_port) const { + switch (p_port) { + case 1: + return "default"; + case 2: + return "default"; + case 3: + return "default"; + case 4: + return "default"; + case 5: + return "default"; + case 6: + return "default"; + } + return String(); +} + +String VisualShaderNodeParticleEmit::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; + String tab; + bool default_condition = false; + + if (!is_input_port_connected(0)) { + default_condition = true; + if (get_input_port_default_value(0)) { + tab = " "; + } else { + return code; + } + } else { + tab = " "; + } + + String transform; + if (p_input_vars[1].is_empty()) { + transform = "TRANSFORM"; + } else { + transform = p_input_vars[1]; + } + + String velocity; + if (p_input_vars[2].is_empty()) { + velocity = "VELOCITY"; + } else { + velocity = p_input_vars[2]; + } + + String color; + if (p_input_vars[3].is_empty()) { + color = "COLOR.rgb"; + } else { + color = p_input_vars[3]; + } + + String alpha; + if (p_input_vars[4].is_empty()) { + alpha = "COLOR.a"; + } else { + alpha = p_input_vars[4]; + } + + String custom; + if (p_input_vars[5].is_empty()) { + custom = "CUSTOM.rgb"; + } else { + custom = p_input_vars[5]; + } + + String custom_alpha; + if (p_input_vars[6].is_empty()) { + custom_alpha = "CUSTOM.a"; + } else { + custom_alpha = p_input_vars[6]; + } + + List<String> flags_arr; + + if (has_flag(EmitFlags::EMIT_FLAG_POSITION)) { + flags_arr.push_back("FLAG_EMIT_POSITION"); + } + if (has_flag(EmitFlags::EMIT_FLAG_ROT_SCALE)) { + flags_arr.push_back("FLAG_EMIT_ROT_SCALE"); + } + if (has_flag(EmitFlags::EMIT_FLAG_VELOCITY)) { + flags_arr.push_back("FLAG_EMIT_VELOCITY"); + } + if (has_flag(EmitFlags::EMIT_FLAG_COLOR)) { + flags_arr.push_back("FLAG_EMIT_COLOR"); + } + if (has_flag(EmitFlags::EMIT_FLAG_CUSTOM)) { + flags_arr.push_back("FLAG_EMIT_CUSTOM"); + } + + String flags; + + for (int i = 0; i < flags_arr.size(); i++) { + if (i > 0) { + flags += "|"; + } + flags += flags_arr[i]; + } + + if (flags.is_empty()) { + flags = "uint(0)"; + } + + if (!default_condition) { + code += " if (" + p_input_vars[0] + ") {\n"; + } + + code += tab + "emit_subparticle(" + transform + ", " + velocity + ", vec4(" + color + ", " + alpha + "), vec4(" + custom + ", " + custom_alpha + "), " + flags + ");\n"; + + if (!default_condition) { + code += " }\n"; + } + + return code; +} + +VisualShaderNodeParticleEmit::VisualShaderNodeParticleEmit() { + set_input_port_default_value(0, true); +} |