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Next-Generation Graphics Engine
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 Post subject: Double Precision Support
PostPosted: 28.09.2013, 04:44 
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Joined: 28.09.2013, 04:42
Posts: 3
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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PostPosted: 28.09.2013, 05:47 
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Joined: 21.08.2008, 11:44
Posts: 354
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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PostPosted: 28.09.2013, 06:57 
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Joined: 13.11.2007, 11:07
Posts: 1149
Location: Germany
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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PostPosted: 28.09.2013, 17:58 
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Joined: 28.09.2013, 04:42
Posts: 3
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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PostPosted: 22.01.2016, 08:51 
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Joined: 28.09.2013, 04:42
Posts: 3
Reviving this topic 3 years later. Any change on this??


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PostPosted: 22.01.2016, 13:13 
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Joined: 17.11.2009, 17:00
Posts: 199
Location: Russia, Moscow
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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PostPosted: 22.01.2016, 17:51 
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Joined: 13.11.2007, 11:07
Posts: 1149
Location: Germany
Thanks a lot. Looking forward to it.


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