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virtualx-engine/core/math/projection.h

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GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
/*************************************************************************/
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
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/* projection.h */
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
Use HTTPS URL for Godot's website in the headers
2017-08-27 14:16:55 +02:00
/* https://godotengine.org */
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
/*************************************************************************/
Update copyright statements to 2022 Happy new year to the wonderful Godot community!
2022-01-03 21:27:34 +01:00
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
GODOT IS OPEN SOURCE
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/* */
/* 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. */
/*************************************************************************/
Add missing copyright headers and fix formatting Using `misc/scripts/fix_headers.py` on all Godot files. Some missing header guards were added, and the header inclusion order was fixed in the Bullet module.
2018-01-05 00:50:27 +01:00
Code quality: Fix header guards consistency Adds `header_guards.sh` bash script, used in CI to validate future changes. Can be run locally to fix invalid header guards.
2022-07-23 23:41:51 +02:00
#ifndef PROJECTION_H
#define PROJECTION_H
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
Core: Move Rect2i to its own `rect2i.h` header And take the opportunity to improve interdependencies a bit with forward declares where possible.
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#include "core/math/math_defs.h"
#include "core/math/vector3.h"
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
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#include "core/math/vector4.h"
Core: Use forward declares for Vector3/Vector3i Add add Vector3 operator in Vector3i.
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#include "core/templates/vector.h"
Core: Move Rect2i to its own `rect2i.h` header And take the opportunity to improve interdependencies a bit with forward declares where possible.
2022-02-04 13:28:02 +01:00
Core: Make all Variant math types structs Some were declared as structs (public by default) and others as classes (private by default) but in practice all these math types exposed as Variants are all 100% public.
2022-02-04 14:30:17 +01:00
struct AABB;
struct Plane;
Core: Move Rect2i to its own `rect2i.h` header And take the opportunity to improve interdependencies a bit with forward declares where possible.
2022-02-04 13:28:02 +01:00
struct Rect2;
Core: Make all Variant math types structs Some were declared as structs (public by default) and others as classes (private by default) but in practice all these math types exposed as Variants are all 100% public.
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struct Transform3D;
Core: Move Rect2i to its own `rect2i.h` header And take the opportunity to improve interdependencies a bit with forward declares where possible.
2022-02-04 13:28:02 +01:00
struct Vector2;
Make core/ includes absolute, remove subfolders from include path This allows more consistency in the manner we include core headers, where previously there would be a mix of absolute, relative and include path-dependent includes.
2018-09-11 18:13:45 +02:00
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
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struct Projection {
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
enum Planes {
PLANE_NEAR,
PLANE_FAR,
PLANE_LEFT,
PLANE_TOP,
PLANE_RIGHT,
PLANE_BOTTOM
};
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
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Vector4 matrix[4];
_FORCE_INLINE_ const Vector4 &operator[](const int p_axis) const {
DEV_ASSERT((unsigned int)p_axis < 4);
return matrix[p_axis];
}
_FORCE_INLINE_ Vector4 &operator[](const int p_axis) {
DEV_ASSERT((unsigned int)p_axis < 4);
return matrix[p_axis];
}
remove trailing whitespace
2016-03-09 00:00:52 +01:00
New lightmapper -Added LocalVector (needed it) -Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too) -Fixes and changes all around the place -Added library for 128 bits fixed point (required for Delaunay3D)
2020-05-01 14:34:23 +02:00
float determinant() const;
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
void set_identity();
void set_zero();
void set_light_bias();
Reflection probes working
2019-09-09 22:50:51 +02:00
void set_depth_correction(bool p_flip_y = true);
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-20 01:11:13 +02:00
A Whole New World (clang-format edition) I can show you the code Pretty, with proper whitespace Tell me, coder, now when did You last write readable code? I can open your eyes Make you see your bad indent Force you to respect the style The core devs agreed upon A whole new world A new fantastic code format A de facto standard With some sugar Enforced with clang-format A whole new world A dazzling style we all dreamed of And when we read it through It's crystal clear That now we're in a whole new world of code
2017-03-05 16:44:50 +01:00
void set_light_atlas_rect(const Rect2 &p_rect);
void set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov = false);
Adding base classes and structures for ARVR support Added ArVrScriptInterface Added ARVRCamera, ARVRController and ARVROrigin helper objects
2017-04-23 14:10:41 +02:00
void set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov, int p_eye, real_t p_intraocular_dist, real_t p_convergence_dist);
void set_for_hmd(int p_eye, real_t p_aspect, real_t p_intraocular_dist, real_t p_display_width, real_t p_display_to_lens, real_t p_oversample, real_t p_z_near, real_t p_z_far);
A Whole New World (clang-format edition) I can show you the code Pretty, with proper whitespace Tell me, coder, now when did You last write readable code? I can open your eyes Make you see your bad indent Force you to respect the style The core devs agreed upon A whole new world A new fantastic code format A de facto standard With some sugar Enforced with clang-format A whole new world A dazzling style we all dreamed of And when we read it through It's crystal clear That now we're in a whole new world of code
2017-03-05 16:44:50 +01:00
void set_orthogonal(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_znear, real_t p_zfar);
void set_orthogonal(real_t p_size, real_t p_aspect, real_t p_znear, real_t p_zfar, bool p_flip_fov = false);
Overloaded basic math funcs (double and float variants). Use real_t rather than float or double in generic functions (core/math) whenever possible. Also inlined some more math functions.
2017-01-14 21:35:39 +01:00
void set_frustum(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_near, real_t p_far);
Add FRUSTUM camera mode, allowing tilted frustums This new camera mode makes it easy to create tilted frustums for mirror or portal effects. This work was kindly sponsored by IMVU.
2019-02-19 17:17:02 +01:00
void set_frustum(real_t p_size, real_t p_aspect, Vector2 p_offset, real_t p_near, real_t p_far, bool p_flip_fov = false);
Added GPU based cluster builder Clustering is now GPU based, uses an implementation based on the Activision algorithm.
2021-01-17 17:25:38 +01:00
void adjust_perspective_znear(real_t p_new_znear);
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-20 01:11:13 +02:00
static Projection create_depth_correction(bool p_flip_y);
static Projection create_light_atlas_rect(const Rect2 &p_rect);
static Projection create_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov = false);
static Projection create_perspective_hmd(real_t p_fovy_degrees, real_t p_aspect, real_t p_z_near, real_t p_z_far, bool p_flip_fov, int p_eye, real_t p_intraocular_dist, real_t p_convergence_dist);
static Projection create_for_hmd(int p_eye, real_t p_aspect, real_t p_intraocular_dist, real_t p_display_width, real_t p_display_to_lens, real_t p_oversample, real_t p_z_near, real_t p_z_far);
static Projection create_orthogonal(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_znear, real_t p_zfar);
static Projection create_orthogonal_aspect(real_t p_size, real_t p_aspect, real_t p_znear, real_t p_zfar, bool p_flip_fov = false);
static Projection create_frustum(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_near, real_t p_far);
static Projection create_frustum_aspect(real_t p_size, real_t p_aspect, Vector2 p_offset, real_t p_near, real_t p_far, bool p_flip_fov = false);
static Projection create_fit_aabb(const AABB &p_aabb);
Projection perspective_znear_adjusted(real_t p_new_znear) const;
Plane get_projection_plane(Planes p_plane) const;
Projection flipped_y() const;
Projection jitter_offseted(const Vector2 &p_offset) const;
A Whole New World (clang-format edition) I can show you the code Pretty, with proper whitespace Tell me, coder, now when did You last write readable code? I can open your eyes Make you see your bad indent Force you to respect the style The core devs agreed upon A whole new world A new fantastic code format A de facto standard With some sugar Enforced with clang-format A whole new world A dazzling style we all dreamed of And when we read it through It's crystal clear That now we're in a whole new world of code
2017-03-05 16:44:50 +01:00
static real_t get_fovy(real_t p_fovx, real_t p_aspect) {
Rename `str2var` to `str_to_var` and similar Affects the Math class, a good chunk of the audio code, and a lot of other miscellaneous classes, too. - `var2str` -> `var_to_str` - `str2var` -> `str_to_var` - `bytes2var` -> `bytes_to_var` - `bytes2var_with_objects` -> `bytes_to_var_with_objects` - `var2bytes` -> `var_to_bytes` - `var2bytes_with_objects` -> `var_to_bytes_with_objects` - `linear2db` -> `linear_to_db` - `db2linear` -> `db_to_linear` - `deg2rad` -> `deg_to_rad` - `rad2deg` -> `rad_to_deg` - `dict2inst` -> `dict_to_inst` - `inst2dict` -> `inst_to_dict`
2022-08-13 17:45:42 +02:00
return Math::rad_to_deg(Math::atan(p_aspect * Math::tan(Math::deg_to_rad(p_fovx) * 0.5)) * 2.0);
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
}
Overloaded basic math funcs (double and float variants). Use real_t rather than float or double in generic functions (core/math) whenever possible. Also inlined some more math functions.
2017-01-14 21:35:39 +01:00
real_t get_z_far() const;
real_t get_z_near() const;
real_t get_aspect() const;
real_t get_fov() const;
Several fixes to directional shadows, closes #10926 Added option to change directional light range mode, between optimized and stable. For Orthogonal, you might need to use optimized.
2017-09-07 23:00:47 +02:00
bool is_orthogonal() const;
remove trailing whitespace
2016-03-09 00:00:52 +01:00
Rename Transform to Transform3D in core
2020-10-17 07:08:21 +02:00
Vector<Plane> get_projection_planes(const Transform3D &p_transform) const;
remove trailing whitespace
2016-03-09 00:00:52 +01:00
Rename Transform to Transform3D in core
2020-10-17 07:08:21 +02:00
bool get_endpoints(const Transform3D &p_transform, Vector3 *p_8points) const;
Change CameraMatrix::get_viewport_size to get_viewport_half_extents Fixes #26637. Fixes #19900. The viewport_size returned by get_viewport_size was previously incorrect, being half the correct value. The function is renamed to get_viewport_half_extents, and now returns a Vector2. Code which called this function has also been modified accordingly. This PR also fixes shadow culling when using ortho cameras, because the correct input for CameraMatrix::set_orthogonal should be the full HEIGHT from get_viewport_half_extents, and not half the width. It also fixes state.ubo_data.viewport_size in rasterizer_scene_gles3.cpp to be the width and the height of the viewport in pixels as stated in the documentation, rather than the current value which is half the viewport extents in worldspace, presumed to be a bug.
2020-01-21 19:39:16 +01:00
Vector2 get_viewport_half_extents() const;
Added volumetric fog effect.
2020-08-13 03:21:01 +02:00
Vector2 get_far_plane_half_extents() const;
remove trailing whitespace
2016-03-09 00:00:52 +01:00
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
void invert();
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-20 01:11:13 +02:00
Projection inverse() const;
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-20 01:11:13 +02:00
Projection operator*(const Projection &p_matrix) const;
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
A Whole New World (clang-format edition) I can show you the code Pretty, with proper whitespace Tell me, coder, now when did You last write readable code? I can open your eyes Make you see your bad indent Force you to respect the style The core devs agreed upon A whole new world A new fantastic code format A de facto standard With some sugar Enforced with clang-format A whole new world A dazzling style we all dreamed of And when we read it through It's crystal clear That now we're in a whole new world of code
2017-03-05 16:44:50 +01:00
Plane xform4(const Plane &p_vec4) const;
_FORCE_INLINE_ Vector3 xform(const Vector3 &p_vec3) const;
remove trailing whitespace
2016-03-09 00:00:52 +01:00
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-20 01:11:13 +02:00
Vector4 xform(const Vector4 &p_vec4) const;
Vector4 xform_inv(const Vector4 &p_vec4) const;
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
operator String() const;
Rename Rect3 to AABB. Fixes #12973.
2017-11-17 03:09:00 +01:00
void scale_translate_to_fit(const AABB &p_aabb);
Initial TAA implementation Initial TAA support based on the implementation in Spartan Engine. Motion vectors are correctly generated for camera and mesh movement, but there is no support for other things like particles or skeleton deformations.
2022-04-04 16:10:22 +02:00
void add_jitter_offset(const Vector2 &p_offset);
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
void make_scale(const Vector3 &p_scale);
Support for SSAO
2016-12-04 16:45:30 +01:00
int get_pixels_per_meter(int p_for_pixel_width) const;
Rename Transform to Transform3D in core
2020-10-17 07:08:21 +02:00
operator Transform3D() const;
GODOT IS OPEN SOURCE
2014-02-10 02:10:30 +01:00
Yay very basic 3D (only white) finally shows.
2019-08-20 22:54:03 +02:00
void flip_y();
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-20 01:11:13 +02:00
bool operator==(const Projection &p_cam) const {
Modified rendering to use cluster instead of foward
2020-01-21 18:24:22 +01:00
for (uint32_t i = 0; i < 4; i++) {
for (uint32_t j = 0; j < 4; j++) {
if (matrix[i][j] != p_cam.matrix[i][j]) {
return false;
}
}
}
return true;
}
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-20 01:11:13 +02:00
bool operator!=(const Projection &p_cam) const {
Modified rendering to use cluster instead of foward
2020-01-21 18:24:22 +01:00
return !(*this == p_cam);
}
Implement automatic LOD (Level of Detail) -Happens on import by default for all models -Just works (tm) -Biasing can be later adjusted per node or per viewport (as well as globally) -Disabled AABB.get_support test because its broken
2020-12-17 19:56:59 +01:00
float get_lod_multiplier() const;
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-20 01:11:13 +02:00
Projection();
Projection(const Vector4 &p_x, const Vector4 &p_y, const Vector4 &p_z, const Vector4 &p_w);
Projection(const Transform3D &p_transform);
~Projection();
GODOT IS OPEN SOURCE
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};
Implement Vector4, Vector4i, Projection Implement built-in classes Vector4, Vector4i and Projection. * Two versions of Vector4 (float and integer). * A Projection class, which is a 4x4 matrix specialized in projection types. These types have been requested for a long time, but given they were very corner case they were not added before. Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity. **Q**: Why Projection and not Matrix4? **A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
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Vector3 Projection::xform(const Vector3 &p_vec3) const {
GODOT IS OPEN SOURCE
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Vector3 ret;
ret.x = matrix[0][0] * p_vec3.x + matrix[1][0] * p_vec3.y + matrix[2][0] * p_vec3.z + matrix[3][0];
ret.y = matrix[0][1] * p_vec3.x + matrix[1][1] * p_vec3.y + matrix[2][1] * p_vec3.z + matrix[3][1];
ret.z = matrix[0][2] * p_vec3.x + matrix[1][2] * p_vec3.y + matrix[2][2] * p_vec3.z + matrix[3][2];
Overloaded basic math funcs (double and float variants). Use real_t rather than float or double in generic functions (core/math) whenever possible. Also inlined some more math functions.
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real_t w = matrix[0][3] * p_vec3.x + matrix[1][3] * p_vec3.y + matrix[2][3] * p_vec3.z + matrix[3][3];
A Whole New World (clang-format edition) I can show you the code Pretty, with proper whitespace Tell me, coder, now when did You last write readable code? I can open your eyes Make you see your bad indent Force you to respect the style The core devs agreed upon A whole new world A new fantastic code format A de facto standard With some sugar Enforced with clang-format A whole new world A dazzling style we all dreamed of And when we read it through It's crystal clear That now we're in a whole new world of code
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return ret / w;
GODOT IS OPEN SOURCE
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}
Code quality: Fix header guards consistency Adds `header_guards.sh` bash script, used in CI to validate future changes. Can be run locally to fix invalid header guards.
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#endif // PROJECTION_H
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