mirror of
https://github.com/Relintai/pandemonium_engine.git
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213 lines
7.6 KiB
C++
213 lines
7.6 KiB
C++
/*************************************************************************/
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/* warp.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* PANDEMONIUM ENGINE */
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/* https://github.com/Relintai/pandemonium_engine */
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/*************************************************************************/
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/* Copyright (c) 2022-present Péter Magyar. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "warp.h"
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#include "../../algos/mm_algos.h"
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#include "../../editor/mm_graph_node.h"
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#include "../mm_material.h"
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Ref<MMNodeUniversalProperty> MMWarp::get_image() {
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return _image;
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}
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void MMWarp::set_image(const Ref<MMNodeUniversalProperty> &val) {
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_image = val;
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}
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Ref<MMNodeUniversalProperty> MMWarp::get_input() {
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return _input;
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}
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void MMWarp::set_input(const Ref<MMNodeUniversalProperty> &val) {
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_input = val;
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}
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Ref<MMNodeUniversalProperty> MMWarp::get_height_map() {
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return _height_map;
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}
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void MMWarp::set_height_map(const Ref<MMNodeUniversalProperty> &val) {
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_height_map = val;
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}
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int MMWarp::get_mode() const {
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return _mode;
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}
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void MMWarp::set_mode(const int val) {
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_mode = val;
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set_dirty(true);
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}
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float MMWarp::get_amount() const {
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return _amount;
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}
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void MMWarp::set_amount(const float val) {
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_amount = val;
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set_dirty(true);
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}
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float MMWarp::get_epsilon() const {
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return _epsilon;
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}
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void MMWarp::set_epsilon(const float val) {
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_epsilon = val;
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set_dirty(true);
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}
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void MMWarp::_init_properties() {
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if (!_image.is_valid()) {
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_image.instance();
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_image->set_default_type(MMNodeUniversalProperty::DEFAULT_TYPE_IMAGE);
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}
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_image->set_output_slot_type(MMNodeUniversalProperty::SLOT_TYPE_IMAGE);
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if (!_input.is_valid()) {
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_input.instance();
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_input->set_default_type(MMNodeUniversalProperty::DEFAULT_TYPE_COLOR);
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_input->set_default_value(Color());
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}
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_input->set_input_slot_type(MMNodeUniversalProperty::SLOT_TYPE_UNIVERSAL);
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_input->set_slot_name(">>> Input1 ");
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if (!_height_map.is_valid()) {
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_height_map.instance();
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_height_map->set_default_type(MMNodeUniversalProperty::DEFAULT_TYPE_FLOAT);
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_height_map->set_default_value(0);
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}
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_height_map->set_input_slot_type(MMNodeUniversalProperty::SLOT_TYPE_UNIVERSAL);
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_height_map->set_slot_name(">>> Height Map ");
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register_input_property(_input);
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register_output_property(_image);
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register_input_property(_height_map);
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}
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void MMWarp::_register_methods(MMGraphNode *mm_graph_node) {
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mm_graph_node->add_slot_texture_universal(_image);
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mm_graph_node->add_slot_label_universal(_input);
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mm_graph_node->add_slot_label_universal(_height_map);
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Array arr;
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arr.push_back("Slope");
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arr.push_back("Distance to top");
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mm_graph_node->add_slot_enum("get_mode", "set_mode", "Mode", arr);
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mm_graph_node->add_slot_float("get_amount", "set_amount", "Amount", 0.0001, Vector2(0, 1));
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mm_graph_node->add_slot_float("get_epsilon", "set_epsilon", "Epsilon", 0.0001, Vector2(0.005, 0.2));
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}
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void MMWarp::_render(const Ref<MMMaterial> &material) {
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Ref<Image> img = render_image(material);
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_image->set_value(img);
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}
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// Warp.mmg
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//input default -> vec4(sin($uv.x*20.0)*0.5+0.5, sin($uv.y*20.0)*0.5+0.5, 0, 1)
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//vec2 $(name)_slope(vec2 uv, float epsilon) {
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// return vec2($d(fract(uv+vec2(epsilon, 0.0)))-$d(fract(uv-vec2(epsilon, 0.0))), $d(fract(uv+vec2(0.0, epsilon)))-$d(fract(uv-vec2(0.0, epsilon))));
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//}
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//vec2 $(name_uv)_slope = $(name)_slope($uv, $eps);
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//Slope
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//mode -> $(name_uv)_slope"
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//Distance to top
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//mode -> $(name_uv)_slope*(1.0-$d($uv))
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//vec2 $(name_uv)_warp = $mode
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//ret -> $in($uv+$amount*$(name_uv)_warp)
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Color MMWarp::_get_value_for(const Vector2 &uv, const int pseed) {
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float sx1 = _height_map->get_value(MMAlgos::fractv2(uv + Vector2(_epsilon, 0.0)));
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float sx2 = _height_map->get_value(MMAlgos::fractv2(uv - Vector2(_epsilon, 0.0)));
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float sy1 = _height_map->get_value(MMAlgos::fractv2(uv + Vector2(0.0, _epsilon)));
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float sy2 = _height_map->get_value(MMAlgos::fractv2(uv - Vector2(0.0, _epsilon)));
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Vector2 slope = Vector2(sx1 - sx2, sy1 - sy2);
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Vector2 mode = slope;
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if (_mode == 1) {
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float m = _height_map->get_value(uv);
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m = 1.0 - m;
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mode = slope * Vector2(m, m);
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}
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Vector2 warp = mode;
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return _input->get_value(uv + Vector2(_amount, _amount) * warp);
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}
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MMWarp::MMWarp() {
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_mode = 0;
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_amount = 0.1;
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_epsilon = 0.1;
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}
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MMWarp::~MMWarp() {
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}
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void MMWarp::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_image"), &MMWarp::get_image);
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ClassDB::bind_method(D_METHOD("set_image", "value"), &MMWarp::set_image);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "image", PROPERTY_HINT_RESOURCE_TYPE, "MMNodeUniversalProperty"), "set_image", "get_image");
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ClassDB::bind_method(D_METHOD("get_input"), &MMWarp::get_input);
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ClassDB::bind_method(D_METHOD("set_input", "value"), &MMWarp::set_input);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "input", PROPERTY_HINT_RESOURCE_TYPE, "MMNodeUniversalProperty"), "set_input", "get_input");
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ClassDB::bind_method(D_METHOD("get_height_map"), &MMWarp::get_height_map);
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ClassDB::bind_method(D_METHOD("set_height_map", "value"), &MMWarp::set_height_map);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "height_map", PROPERTY_HINT_RESOURCE_TYPE, "MMNodeUniversalProperty"), "set_height_map", "get_height_map");
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ClassDB::bind_method(D_METHOD("get_mode"), &MMWarp::get_mode);
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ClassDB::bind_method(D_METHOD("set_mode", "value"), &MMWarp::set_mode);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "mode"), "set_mode", "get_mode");
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ClassDB::bind_method(D_METHOD("get_amount"), &MMWarp::get_amount);
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ClassDB::bind_method(D_METHOD("set_amount", "value"), &MMWarp::set_amount);
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "amount"), "set_amount", "get_amount");
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ClassDB::bind_method(D_METHOD("get_epsilon"), &MMWarp::get_epsilon);
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ClassDB::bind_method(D_METHOD("set_epsilon", "value"), &MMWarp::set_epsilon);
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "epsilon"), "set_epsilon", "get_epsilon");
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}
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