Editing Direct3D (section)

===D3DX===
{{Main article|D3DX}}
Direct3D comes with D3DX, a library of tools designed to perform common mathematical calculations on [[Euclidean vector|vectors]], [[matrix (mathematics)|matrices]] and colors, calculating look-at and [[projection (mathematics)|projection]] matrices, [[spline interpolation]]s, and several more complicated tasks, such as compiling or assembling shaders used for 3D graphic programming, compressed [[skeletal animation]] storage and matrix stacks. There are several functions that provide complex operations over 3D [[mesh]]es like tangent-space computation, mesh simplification, [[precomputed radiance transfer]], optimizing for vertex cache friendliness and stripification, and generators for 3D text meshes. 2D features include classes for drawing screen-space lines, text and [[Sprite (computer graphics)|sprite]] based [[particle system]]s. Spatial functions include various intersection routines, conversion from/to [[barycentric coordinates (mathematics)|barycentric coordinates]] and [[bounding box]]/sphere generators. D3DX is provided as a [[dynamic link library]] (DLL). D3DX is deprecated from Windows 8 onward and can't be used in Windows Store apps.<ref>{{cite web|url=http://msdn.microsoft.com/en-us/library/windows/desktop/ff476162(v=vs.85).aspx|title=D3DX 11 Reference|publisher=MSDN|access-date=30 September 2014}}</ref>

Some features present in previous versions of D3DX were removed in Direct3D 11 and now provided as separate sources:<ref name=LivingWithoutD3DX>{{cite web |url=http://blogs.msdn.com/b/chuckw/archive/2013/08/21/living-without-d3dx.aspx |title=Living without D3DX| publisher=MSDN}}</ref>

* Windows SDK and Visual Studio<ref>{{cite web|url=http://msdn.microsoft.com/en-us/library/windows/desktop/bb232919(v=vs.85).aspx|title=Effect-Compiler Tool|date=August 19, 2020 |publisher=Microsoft}}</ref>
* A large part of the math library has been removed. Microsoft recommends use of the DirectX Math library instead.
* Spherical harmonics math has been removed and is now distributed as source.<ref>{{cite web|url=http://blogs.msdn.com/b/chuckw/archive/2012/07/28/spherical-harmonics-math.aspx|title=Spherical Harmonics Math|work=msdn.com|access-date=23 November 2014}}</ref>
* The Effect framework has been removed and is now distributed as source via CodePlex.<ref>{{cite web|url=http://fx11.codeplex.com/|title=Effects 11|work=CodePlex|access-date=30 September 2014|archive-date=September 24, 2014|archive-url=https://web.archive.org/web/20140924100132/https://fx11.codeplex.com/|url-status=dead}}</ref>
* The Mesh interface and geometry functions have been removed and are now distributed as source via CodePlex under DirectXMesh geometry processing library.<ref>{{cite web|url=https://directxmesh.codeplex.com/|title=DirectXMesh geometry processing library|work=CodePlex|access-date=30 September 2014|archive-date=September 29, 2014|archive-url=https://web.archive.org/web/20140929072508/http://directxmesh.codeplex.com/|url-status=dead}}</ref>
* Texture functions have been removed and are now distributed as source via CodePlex under DirectXTex texture processing library.<ref>{{cite web|url=http://directxtex.codeplex.com/|title=DirectXTex texture processing library|work=CodePlex|access-date=30 September 2014|archive-date=September 25, 2014|archive-url=https://web.archive.org/web/20140925083258/http://directxtex.codeplex.com/|url-status=dead}}</ref>
* General helpers have been removed and are now distributed as source via CodePlex under DirectX Tool Kit (DirectXTK) project.<ref>{{cite web|url=https://directxtk.codeplex.com/|title=DirectX Tool Kit|work=CodePlex|access-date=30 September 2014|archive-date=September 29, 2014|archive-url=https://web.archive.org/web/20140929072523/http://directxtk.codeplex.com/|url-status=dead}}</ref>
* The isochart texture atlas has been removed and is now distributed as source via CodePlex under UVAtlas project.<ref>{{cite web|url=http://uvatlas.codeplex.com/|title=UVAtrlas|work=CodePlex|access-date=23 November 2014|archive-date=June 27, 2015|archive-url=https://web.archive.org/web/20150627044227/https://uvatlas.codeplex.com/|url-status=dead}}</ref>