-
-
Notifications
You must be signed in to change notification settings - Fork 21k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Adds fixed timestep interpolation to the rendering server (2D only). Switchable on and off with a project setting (default is off). Co-authored-by: lawnjelly <lawnjelly@gmail.com>
- Loading branch information
Showing
39 changed files
with
1,039 additions
and
74 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,76 @@ | ||
/**************************************************************************/ | ||
/* transform_interpolator.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 "transform_interpolator.h" | ||
|
||
#include "core/math/transform_2d.h" | ||
|
||
void TransformInterpolator::interpolate_transform_2d(const Transform2D &p_prev, const Transform2D &p_curr, Transform2D &r_result, real_t p_fraction) { | ||
// Extract parameters. | ||
Vector2 p1 = p_prev.get_origin(); | ||
Vector2 p2 = p_curr.get_origin(); | ||
|
||
// Special case for physics interpolation, if flipping, don't interpolate basis. | ||
// If the determinant polarity changes, the handedness of the coordinate system changes. | ||
if (_sign(p_prev.determinant()) != _sign(p_curr.determinant())) { | ||
r_result.columns[0] = p_curr.columns[0]; | ||
r_result.columns[1] = p_curr.columns[1]; | ||
r_result.set_origin(p1.lerp(p2, p_fraction)); | ||
return; | ||
} | ||
|
||
real_t r1 = p_prev.get_rotation(); | ||
real_t r2 = p_curr.get_rotation(); | ||
|
||
Size2 s1 = p_prev.get_scale(); | ||
Size2 s2 = p_curr.get_scale(); | ||
|
||
// Slerp rotation. | ||
Vector2 v1(Math::cos(r1), Math::sin(r1)); | ||
Vector2 v2(Math::cos(r2), Math::sin(r2)); | ||
|
||
real_t dot = v1.dot(v2); | ||
|
||
dot = CLAMP(dot, -1, 1); | ||
|
||
Vector2 v; | ||
|
||
if (dot > 0.9995f) { | ||
v = v1.lerp(v2, p_fraction).normalized(); // Linearly interpolate to avoid numerical precision issues. | ||
} else { | ||
real_t angle = p_fraction * Math::acos(dot); | ||
Vector2 v3 = (v2 - v1 * dot).normalized(); | ||
v = v1 * Math::cos(angle) + v3 * Math::sin(angle); | ||
} | ||
|
||
// Construct matrix. | ||
r_result = Transform2D(Math::atan2(v.y, v.x), p1.lerp(p2, p_fraction)); | ||
r_result.scale_basis(s1.lerp(s2, p_fraction)); | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,46 @@ | ||
/**************************************************************************/ | ||
/* transform_interpolator.h */ | ||
/**************************************************************************/ | ||
/* 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. */ | ||
/**************************************************************************/ | ||
|
||
#ifndef TRANSFORM_INTERPOLATOR_H | ||
#define TRANSFORM_INTERPOLATOR_H | ||
|
||
#include "core/math/math_defs.h" | ||
|
||
struct Transform2D; | ||
|
||
class TransformInterpolator { | ||
private: | ||
static bool _sign(real_t p_val) { return p_val >= 0; } | ||
|
||
public: | ||
static void interpolate_transform_2d(const Transform2D &p_prev, const Transform2D &p_curr, Transform2D &r_result, real_t p_fraction); | ||
}; | ||
|
||
#endif // TRANSFORM_INTERPOLATOR_H |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.