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Diffstat (limited to 'modules/gltf/structures/gltf_camera.cpp')
| -rw-r--r-- | modules/gltf/structures/gltf_camera.cpp | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/modules/gltf/structures/gltf_camera.cpp b/modules/gltf/structures/gltf_camera.cpp new file mode 100644 index 0000000000..630b34c270 --- /dev/null +++ b/modules/gltf/structures/gltf_camera.cpp @@ -0,0 +1,134 @@ +/**************************************************************************/ +/* gltf_camera.cpp */ +/**************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/**************************************************************************/ +/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ +/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* */ +/* 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 "gltf_camera.h" + +#include "scene/3d/camera_3d.h" + +void GLTFCamera::_bind_methods() { + ClassDB::bind_static_method("GLTFCamera", D_METHOD("from_node", "camera_node"), &GLTFCamera::from_node); + ClassDB::bind_method(D_METHOD("to_node"), &GLTFCamera::to_node); + + ClassDB::bind_static_method("GLTFCamera", D_METHOD("from_dictionary", "dictionary"), &GLTFCamera::from_dictionary); + ClassDB::bind_method(D_METHOD("to_dictionary"), &GLTFCamera::to_dictionary); + + ClassDB::bind_method(D_METHOD("get_perspective"), &GLTFCamera::get_perspective); + ClassDB::bind_method(D_METHOD("set_perspective", "perspective"), &GLTFCamera::set_perspective); + ClassDB::bind_method(D_METHOD("get_fov"), &GLTFCamera::get_fov); + ClassDB::bind_method(D_METHOD("set_fov", "fov"), &GLTFCamera::set_fov); + ClassDB::bind_method(D_METHOD("get_size_mag"), &GLTFCamera::get_size_mag); + ClassDB::bind_method(D_METHOD("set_size_mag", "size_mag"), &GLTFCamera::set_size_mag); + ClassDB::bind_method(D_METHOD("get_depth_far"), &GLTFCamera::get_depth_far); + ClassDB::bind_method(D_METHOD("set_depth_far", "zdepth_far"), &GLTFCamera::set_depth_far); + ClassDB::bind_method(D_METHOD("get_depth_near"), &GLTFCamera::get_depth_near); + ClassDB::bind_method(D_METHOD("set_depth_near", "zdepth_near"), &GLTFCamera::set_depth_near); + + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "perspective"), "set_perspective", "get_perspective"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "fov"), "set_fov", "get_fov"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "size_mag"), "set_size_mag", "get_size_mag"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "depth_far"), "set_depth_far", "get_depth_far"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "depth_near"), "set_depth_near", "get_depth_near"); +} + +Ref<GLTFCamera> GLTFCamera::from_node(const Camera3D *p_camera) { + Ref<GLTFCamera> c; + c.instantiate(); + ERR_FAIL_COND_V_MSG(!p_camera, c, "Tried to create a GLTFCamera from a Camera3D node, but the given node was null."); + c->set_perspective(p_camera->get_projection() == Camera3D::ProjectionType::PROJECTION_PERSPECTIVE); + // GLTF spec (yfov) is in radians, Godot's camera (fov) is in degrees. + c->set_fov(Math::deg_to_rad(p_camera->get_fov())); + // GLTF spec (xmag and ymag) is a radius in meters, Godot's camera (size) is a diameter in meters. + c->set_size_mag(p_camera->get_size() * 0.5f); + c->set_depth_far(p_camera->get_far()); + c->set_depth_near(p_camera->get_near()); + return c; +} + +Camera3D *GLTFCamera::to_node() const { + Camera3D *camera = memnew(Camera3D); + camera->set_projection(perspective ? Camera3D::PROJECTION_PERSPECTIVE : Camera3D::PROJECTION_ORTHOGONAL); + // GLTF spec (yfov) is in radians, Godot's camera (fov) is in degrees. + camera->set_fov(Math::rad_to_deg(fov)); + // GLTF spec (xmag and ymag) is a radius in meters, Godot's camera (size) is a diameter in meters. + camera->set_size(size_mag * 2.0f); + camera->set_near(depth_near); + camera->set_far(depth_far); + return camera; +} + +Ref<GLTFCamera> GLTFCamera::from_dictionary(const Dictionary p_dictionary) { + ERR_FAIL_COND_V_MSG(!p_dictionary.has("type"), Ref<GLTFCamera>(), "Failed to parse GLTF camera, missing required field 'type'."); + Ref<GLTFCamera> camera; + camera.instantiate(); + const String &type = p_dictionary["type"]; + if (type == "perspective") { + camera->set_perspective(true); + if (p_dictionary.has("perspective")) { + const Dictionary &persp = p_dictionary["perspective"]; + camera->set_fov(persp["yfov"]); + if (persp.has("zfar")) { + camera->set_depth_far(persp["zfar"]); + } + camera->set_depth_near(persp["znear"]); + } + } else if (type == "orthographic") { + camera->set_perspective(false); + if (p_dictionary.has("orthographic")) { + const Dictionary &ortho = p_dictionary["orthographic"]; + camera->set_size_mag(ortho["ymag"]); + camera->set_depth_far(ortho["zfar"]); + camera->set_depth_near(ortho["znear"]); + } + } else { + ERR_PRINT("Error parsing GLTF camera: Camera type '" + type + "' is unknown, should be perspective or orthographic."); + } + return camera; +} + +Dictionary GLTFCamera::to_dictionary() const { + Dictionary d; + if (perspective) { + Dictionary persp; + persp["yfov"] = fov; + persp["zfar"] = depth_far; + persp["znear"] = depth_near; + d["perspective"] = persp; + d["type"] = "perspective"; + } else { + Dictionary ortho; + ortho["ymag"] = size_mag; + ortho["xmag"] = size_mag; + ortho["zfar"] = depth_far; + ortho["znear"] = depth_near; + d["orthographic"] = ortho; + d["type"] = "orthographic"; + } + return d; +} |