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Double Precision Support http://horde3d.org/forums/viewtopic.php?f=1&t=1904	Page 1 of 1

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Author:	Cosmas [ 28.09.2013, 04:44 ]
Post subject:	Double Precision Support
Hey there, Just joined the group in the hopes of finding a new engine for my company. We're involved in train simulators. I'm curious does H3D support double precision transforms? We're dealing in Lat/Long. Thanks

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Author:	Siavash [ 28.09.2013, 05:47 ]
Post subject:	Re: Double Precision Support
No it doesn't support as far as I know. Support for the double precision floats is introduced with OpenGL 4 and capable hardware. You should look for OpenGL 4 based graphics engines supporting double precision floats, and you might need to modify them to use double instead of float in case they don't use it by default.

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Author:	Volker [ 28.09.2013, 06:57 ]
Post subject:	Re: Double Precision Support
Maybe we could introduce that as a compile time configuration option. As uniform functions are already function pointers it shouldn't make too much work. Just a guess, haven't searched the source code for possible issues.

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Author:	Cosmas [ 28.09.2013, 17:58 ]
Post subject:	Re: Double Precision Support
I'm in favor. It would certainly give more value to those of us in the sim industry, especially since the focus is already on crowd simulation.

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Author:	Cosmas [ 22.01.2016, 08:51 ]
Post subject:	Re: Double Precision Support
Reviving this topic 3 years later. Any change on this??

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Author:	Irdis [ 22.01.2016, 13:13 ]
Post subject:	Re: Double Precision Support
I will be updating the engine for OpenGL 4 support in a few months and will add double precision support. But currently I cannot give any guarantees when it will be implemented.

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Author:	Volker [ 22.01.2016, 17:51 ]
Post subject:	Re: Double Precision Support
Thanks a lot. Looking forward to it.

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