magnum

Commit Graph

Author	SHA1	Message	Date
Vladimír Vondruš	8b1026d457	Math: make all matrix and vector operators either member or friend. Except for a vector and a row matrix multiplication operator, which doesn't make sense to be a member. These are all now significantly shorter thanks to not having to repeat that many template parameters, and they can make use of direct access into the _data array for better debug perf.	2 years ago
Vladimír Vondruš	5e097681cb	Math: be reasonable, <utility> is not needed for std::declval. Despite what the standard tries to say. I bet a large portion of <type_traits> is impossible to implement without it, which is why all STL implementations define it there already.	3 years ago
Vladimír Vondruš	fa079385bf	singles: don't include StrictWeakOrdering in MagnumMath.hpp.	3 years ago
Vladimír Vondruš	bbb54a9df8	It's 2023 already!	3 years ago
Vladimír Vondruš	862c48517f	Math: add Vector2::{r,g}() and Vector3::rg(). For consistency with X/Y accessors. No reason to not have them.	3 years ago
Vladimír Vondruš	73c881f5ae	Math: mention that cross product can be used to calculate triangle area.	3 years ago
Vladimír Vondruš	9e796a9664	Math: clarify relation of distances and cross products. I spent a significant amount of time reinventing the wheel, i.e. figuring out how to use a cross product to calculate distance of a point to a line. Only to subseqently have a breakthrough discovery of Distance::linePoint() that actually does the same. The distance APIs and 2D and 3D cross-products are now linked together the math snippet is clarified, and both the 2D and 3D distance use the same equation, saving one unnecessary vector subtraction. The equivalence of the two equations is listed directly on that Wolfram link.	4 years ago
Vladimír Vondruš	822fa0d644	Updated copyright year.	4 years ago
Vladimír Vondruš	7413d2053f	Math: doc++	5 years ago
Vladimír Vondruš	3d136503d8	Updated copyright year.	5 years ago
Vladimír Vondruš	d01364ca1f	Math: document more what's cross() good for.	6 years ago
Vladimír Vondruš	1026aee80e	Moved the NoInit tag from Math to the root namespace. The old one is deprecated, and will be removed in a future release. Unfortunately, to avoid deprecation warnings, all use of NoInit in the Math library temporarily have to be Magnum::NoInit This will be cleaned up when the deprecated alias is removed.	6 years ago
Vladimír Vondruš	19e0e96d74	Updated copyright year.	6 years ago
Vladimír Vondruš	573125d0a9	Math: make cross() 10x faster in Debug. And the Vector3 version 5% slower in Release, on GCC at least. FFS, what was I thinking with the gather() things. Nice in user code, extremely bad in library code.	6 years ago
Vladimír Vondruš	73c37a8339	Add Vector[324][u][hsb] convenience typedefs for small types. And also Color variants, to make it complete. No half types for matrices right now, those might come later.	6 years ago
Vladimír Vondruš	3b940f2509	doc: avoid referencing the deprecated Math::swizzle() function.	6 years ago
Vladimír Vondruš	6fbedd8f52	Revert "doc: pile on more Doxygen workarounds." This reverts commit `0b7831c1ad`.	6 years ago
Vladimír Vondruš	0b7831c1ad	doc: pile on more Doxygen workarounds. Sad! https://github.com/doxygen/doxygen/issues/7472	6 years ago
Vladimír Vondruš	acc8d8994b	Math: added scatter(), renamed swizzle() to gather(). The swizzle() function is still present, only marked as deprecated and scheduled to be removed in some future release.	7 years ago
Vladimír Vondruš	4b4b8efc1b	Math: doc++ Fixing Engrish while doing the Python bindings.	7 years ago
Vladimír Vondruš	3fb90cdf5c	Math: remove obsolete Doxygen workarounds.	7 years ago
Vladimír Vondruš	36ba5f4333	Math: ensure ZeroInit and IdentityInit constructors are explicit. Like NoInit ones. Not sure what I was doing there.	7 years ago
Vladimír Vondruš	05b1cefda5	Math: avoid operator[] calls where possible (and not too verbose). In debug builds (where nothing is inlined), this makes matrix multiplication run in 33% of the time and matrix inversion roughly twice as fast.	7 years ago
Vladimír Vondruš	64bc7f9c8e	Math: moved configuration value parsers to a dedicated header. There's a lot of string operations and that's nothing good to have included everywhere. Should speed up the compilation quite a bit.	7 years ago
Vladimír Vondruš	5fc246b908	Math: compile forgotten code snippets.	7 years ago
Vladimír Vondruš	e6b7aa12fa	Updated copyright year.	7 years ago
Vladimír Vondruš	f5e30bb5d3	Math: minor coding style cleanup.	8 years ago
Borislav Stanimirov	f7f2ab8cb5	Math: added StrictWeakOrdering for math types	8 years ago
Vladimír Vondruš	49068f066d	Math: added planeEquation() helper.	8 years ago
Vladimír Vondruš	a421b50be3	Math: doc++	8 years ago
Vladimír Vondruš	468af3284a	Math: removed long-deprecated member dot(), angle(), lerp(), cross(). Use free functions in Math namespace instead.	8 years ago
Vladimír Vondruš	2136466f0f	Math: doc++, add search aliases for GLSL functions.	8 years ago
Vladimír Vondruš	623fa97970	Updated copyright year.	8 years ago
Vladimír Vondruš	05bb8b419a	Math: updates for the new documentation theme.	8 years ago
Vladimír Vondruš	7a16273e5d	Updated copyright year.	9 years ago
Vladimír Vondruš	ae9095de16	Remove most of the "MSVC 2015 can't handle {} here" workarounds.	9 years ago
Vladimír Vondruš	28c31bfc96	Math: I don't see why we should have those overloads. The compiler does that for us. Probably a brain fart from 2010. On the other hand, the ConfigurationValue specializations need to be there, because the type is used explicitly as template parameter.	10 years ago
Vladimír Vondruš	40d60f6a3f	Math: make all constructor noexcept and test their behavior.	10 years ago
Vladimír Vondruš	23646e6690	Hell, this project is big.	10 years ago
Vladimír Vondruš	6e8c16c960	MSVC 2015 Update 1: fixed nearly all constexpr bugs.	11 years ago
Vladimír Vondruš	0aa16595eb	Use new-style debug operators everywhere.	11 years ago
Vladimír Vondruš	bfbacaa7c9	MSVC 2015 compatibility: random stuff that's causing compiler crashes. Random indeed. In particular, it's causing crashes for Vector2 and Vector3, but not for the exact same code in Vector4!	11 years ago
Vladimír Vondruš	d805e87f21	MSVC 2015 compatibility: Math conversion constructor constexpr issues. Some could be worked around, but the rest is prevented by inability to delegate constexpr constructors.	11 years ago
Vladimír Vondruš	8984904693	MSVC 2015 compatibility: single value Math constructor constexpr issues. Some could be worked around, but the rest is prevented by inability to delegate constexpr constructors.	11 years ago
Vladimír Vondruš	371adc63f9	MSVC 2015 compatibility: the issues with {} are eternal. Aargh.	11 years ago
Vladimír Vondruš	c4bf8d6eda	Doxygen workarounds. I LOVE this, do you hear me? Especially at 2:40 AM.	11 years ago
Vladimír Vondruš	1b0da5b2df	Math: ability to construct all types without initializing the contents. Useful for squeezing out last bits of performance, e.g. in this case: Vector3 a; a[0] = something++; a[1] = something++; a[2] = something++; In the code all elements are first zeroed out and then overwritten later, thus it might be good to avoid the zero-initialization: Vector3 a{Math::NoInit}; a[0] = something++; a[1] = something++; a[2] = something++; This will of course be more useful in far larger data types and arrays of these.	11 years ago
Vladimír Vondruš	3a8ac02909	Math: more explicit default zero/identity constructors. Some classes are by default constructed zero-filled while other are set to identity and the only way to to check this is to look into the documentation. This changes the default constructor of all classes to take an optional "tag" which acts as documentation about how the type is constructed. Note that this result in no behavioral changes, just ability to be more explicit when writing the code. Example: // These two are equivalent Quaternion q1; Quaternion q2{Math::IdentityInit}; // These two are equivalent Vector4 vec1; Vector4 vec2{Math::ZeroInit}; Matrix4 a{Math::IdentityInit, 2}; // 2 on diagonal Matrix4 b{Math::ZeroInit}; // all zero This functionality was already present in some ugly form in Matrix, Matrix3 and Matrix4 classes. It was long and ugly to write, so it is now generalized into the new Math::IdentityInit and Math::ZeroInit tags, the original Matrix::IdentityType, Matrix::Identity, Matrix::ZeroType and Matrix::Zero are deprecated and will be removed in the future release. Math::Matrix<7, Int> m{Math::Matrix<7, Int>::Identity}; // before Math::Matrix<7, Int> m{Math::IdentityInit}; // now	11 years ago
Vladimír Vondruš	64bc2393d1	Math: made dot(), angle(), *lerp() and cross() free functions. It is often annoying to write e.g. this, especially in generic code: T dot = Math::Vector<size, T>::dot(a, b); When this is more than enough and the compiler can infer the rest from the context: T dot = Math::dot(a, b); There are more downsides and confusing cases (you can call Math::Vector<3, T>::dot(), Math::Vector3<T>::dot() and Color3::dot() and it is still the same function), so I made these as free functions in Math namespace. You can now also abuse ADL for the calls, but I would advise against that for better readability: T d = dot(a, b); // dot?! what on earth is dot? and what is a? The only downside found when porting is that you need to specify the type somehow when having both parameters as initializer lists: T d = dot({2.0f, -1.5f}, {1.0f, 2.5f}); // error T d = dot(Complex{2.0f, -1.5f}, {1.0f, 2.5f}); // okay But that's probably reasonable (and it's also highly corner case, the functions were used this way only in tests). The original static member functions are of course still present, but marked as deprecated and will be removed at some point in future.	11 years ago
Vladimír Vondruš	7be1239adf	Math: improve docs for vector cross/dot product. Comes handy. In my case to prevent more embarassing mistakes in the future.	11 years ago

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58 Commits (98d8bc3a1f3098dcc1ca7617f6d5203dbcbcbe1a)