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Diffstat (limited to 'scene/3d/immediate_geometry_3d.cpp')
| -rw-r--r-- | scene/3d/immediate_geometry_3d.cpp | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/scene/3d/immediate_geometry_3d.cpp b/scene/3d/immediate_geometry_3d.cpp new file mode 100644 index 0000000000..63d4b1ac84 --- /dev/null +++ b/scene/3d/immediate_geometry_3d.cpp @@ -0,0 +1,169 @@ +/*************************************************************************/ +/* immediate_geometry_3d.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 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 "immediate_geometry_3d.h" + +void ImmediateGeometry3D::begin(Mesh::PrimitiveType p_primitive, const Ref<Texture2D> &p_texture) { + + RS::get_singleton()->immediate_begin(im, (RS::PrimitiveType)p_primitive, p_texture.is_valid() ? p_texture->get_rid() : RID()); + if (p_texture.is_valid()) + cached_textures.push_back(p_texture); +} + +void ImmediateGeometry3D::set_normal(const Vector3 &p_normal) { + + RS::get_singleton()->immediate_normal(im, p_normal); +} + +void ImmediateGeometry3D::set_tangent(const Plane &p_tangent) { + + RS::get_singleton()->immediate_tangent(im, p_tangent); +} + +void ImmediateGeometry3D::set_color(const Color &p_color) { + + RS::get_singleton()->immediate_color(im, p_color); +} + +void ImmediateGeometry3D::set_uv(const Vector2 &p_uv) { + + RS::get_singleton()->immediate_uv(im, p_uv); +} + +void ImmediateGeometry3D::set_uv2(const Vector2 &p_uv2) { + + RS::get_singleton()->immediate_uv2(im, p_uv2); +} + +void ImmediateGeometry3D::add_vertex(const Vector3 &p_vertex) { + + RS::get_singleton()->immediate_vertex(im, p_vertex); + if (empty) { + aabb.position = p_vertex; + aabb.size = Vector3(); + empty = false; + } else { + aabb.expand_to(p_vertex); + } +} + +void ImmediateGeometry3D::end() { + + RS::get_singleton()->immediate_end(im); +} + +void ImmediateGeometry3D::clear() { + + RS::get_singleton()->immediate_clear(im); + empty = true; + cached_textures.clear(); +} + +AABB ImmediateGeometry3D::get_aabb() const { + + return aabb; +} +Vector<Face3> ImmediateGeometry3D::get_faces(uint32_t p_usage_flags) const { + + return Vector<Face3>(); +} + +void ImmediateGeometry3D::add_sphere(int p_lats, int p_lons, float p_radius, bool p_add_uv) { + + for (int i = 1; i <= p_lats; i++) { + double lat0 = Math_PI * (-0.5 + (double)(i - 1) / p_lats); + double z0 = Math::sin(lat0); + double zr0 = Math::cos(lat0); + + double lat1 = Math_PI * (-0.5 + (double)i / p_lats); + double z1 = Math::sin(lat1); + double zr1 = Math::cos(lat1); + + for (int j = p_lons; j >= 1; j--) { + + double lng0 = 2 * Math_PI * (double)(j - 1) / p_lons; + double x0 = Math::cos(lng0); + double y0 = Math::sin(lng0); + + double lng1 = 2 * Math_PI * (double)(j) / p_lons; + double x1 = Math::cos(lng1); + double y1 = Math::sin(lng1); + + Vector3 v[4] = { + Vector3(x1 * zr0, z0, y1 * zr0), + Vector3(x1 * zr1, z1, y1 * zr1), + Vector3(x0 * zr1, z1, y0 * zr1), + Vector3(x0 * zr0, z0, y0 * zr0) + }; + +#define ADD_POINT(m_idx) \ + if (p_add_uv) { \ + set_uv(Vector2(Math::atan2(v[m_idx].x, v[m_idx].z) / Math_PI * 0.5 + 0.5, v[m_idx].y * 0.5 + 0.5)); \ + set_tangent(Plane(Vector3(-v[m_idx].z, v[m_idx].y, v[m_idx].x), 1)); \ + } \ + set_normal(v[m_idx]); \ + add_vertex(v[m_idx] * p_radius); + + ADD_POINT(0); + ADD_POINT(1); + ADD_POINT(2); + + ADD_POINT(2); + ADD_POINT(3); + ADD_POINT(0); + } + } +} + +void ImmediateGeometry3D::_bind_methods() { + + ClassDB::bind_method(D_METHOD("begin", "primitive", "texture"), &ImmediateGeometry3D::begin, DEFVAL(Ref<Texture2D>())); + ClassDB::bind_method(D_METHOD("set_normal", "normal"), &ImmediateGeometry3D::set_normal); + ClassDB::bind_method(D_METHOD("set_tangent", "tangent"), &ImmediateGeometry3D::set_tangent); + ClassDB::bind_method(D_METHOD("set_color", "color"), &ImmediateGeometry3D::set_color); + ClassDB::bind_method(D_METHOD("set_uv", "uv"), &ImmediateGeometry3D::set_uv); + ClassDB::bind_method(D_METHOD("set_uv2", "uv"), &ImmediateGeometry3D::set_uv2); + ClassDB::bind_method(D_METHOD("add_vertex", "position"), &ImmediateGeometry3D::add_vertex); + ClassDB::bind_method(D_METHOD("add_sphere", "lats", "lons", "radius", "add_uv"), &ImmediateGeometry3D::add_sphere, DEFVAL(true)); + ClassDB::bind_method(D_METHOD("end"), &ImmediateGeometry3D::end); + ClassDB::bind_method(D_METHOD("clear"), &ImmediateGeometry3D::clear); +} + +ImmediateGeometry3D::ImmediateGeometry3D() { + + im = RenderingServer::get_singleton()->immediate_create(); + set_base(im); + empty = true; +} + +ImmediateGeometry3D::~ImmediateGeometry3D() { + + RenderingServer::get_singleton()->free(im); +} |