Talk:Direct3D

External links modified

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External links modified

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I have just modified 2 external links on Direct3D. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Corrected formatting/usage for http://www.microsoft.com/presspass/press/2003/Jan03/01-22DirectXHLSLPR.mspx
• Added archive https://web.archive.org/web/20131113193604/http://www.microsoftgamefest.com/presentations/2008.htm to http://www.microsoftgamefest.com/presentations/2008.htm
• Added {{dead link}} tag to http://wiki.winehq.org/WineD3DOnWindows

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External links modified

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I have just modified 6 external links on Direct3D. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20111102052207/http://www.microsoft.com/download/en/details.aspx?id=9977 to http://www.microsoft.com/download/en/details.aspx?id=9977
• Added {{dead link}} tag to http://www.microsoft.com/download/en/details.aspx?id=9539
• Added {{dead link}} tag to http://www.microsoft.com/download/en/details.aspx?id=15051
• Added archive https://web.archive.org/web/20101108055325/http://developer.amd.com/gpu/radeon/tessellation/pages/default.aspx to http://developer.amd.com/gpu/radeon/Tessellation/Pages/default.aspx
• Added archive https://web.archive.org/web/20110727235724/http://developer.amd.com/gpu_assets/Real-Time_Tessellation_on_GPU.pdf to http://developer.amd.com/gpu_assets/Real-Time_Tessellation_on_GPU.pdf
• Added archive https://web.archive.org/web/20100409071830/http://developer.amd.com/GPU/WGSDK/Pages/default.aspx to http://developer.amd.com/gpu/wgsdk/Pages/default.aspx
• Added archive https://web.archive.org/web/20140408062133/http://blogs.msdn.com/b/directx/archive/2009/09/10/windows-7-transition-pack-for-windows-vista.aspx to http://blogs.msdn.com/directx/archive/2009/09/10/windows-7-transition-pack-for-windows-vista.aspx
• Added {{dead link}} tag to http://www.microsoft.com/download/en/details.aspx?id=1839
• Added archive https://web.archive.org/web/20080509150221/http://www.toymaker.info/Games/html/d3d_resources.html to http://www.toymaker.info/Games/html/d3d_resources.html
• Added {{dead link}} tag to http://www.bit-tech.net/hardware/2006/11/30/directx10_future_of_pc_gaming/1.html

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Direct3D 12 and Mantle

https://en.wikipedia.org/w/index.php?title=Direct3D&diff=prev&oldid=1242766310
https://en.wikipedia.org/w/index.php?title=Direct3D&diff=prev&oldid=1242766853

There are claims of D3D12 being directly influenced by Mantle, or even based on it. There doesn't seem to be proper sources stating as such; the references given on the article were basically speculation and inference.

Should these be reinstated? If not, does anyone have better sources? Eddmanx (talk) 16:38, 28 August 2024 (UTC)

Floating-point rules.

In the section "Direct3d 10.1" we have: "Floating Point Rules – Uses the same IEEE-754 rules for floating-point EXCEPT 32-bit floating point operations have been tightened to produce a result within 0.5 unit-last-place (0.5 ULP) of the infinitely precise result. This applies to addition, subtraction, and multiplication. (accuracy to 0.5 ULP for multiply, 1.0 ULP for reciprocal)."

This is incorrect. IEEE-754 have always required that the result be within 0.5 ULP of the infinitely precise result when the round-to-nearest rounding mode is in effect. This is the default. IEEE-754 allows users to select directed rounding modes for which the result is within 1 ULP. Petercbh (talk) 15:06, 6 September 2025 (UTC)

So in fact, going by what is in the above quote, Direc3d 10.1 loosens the IEEE-784 rules for reciprocal. Exactly the opposite to what is claimed in the article. Petercbh (talk) 15:10, 6 September 2025 (UTC)