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bkoz 04-04-07 02:53 PM

Using Intel compilers
 
Has anyone experienced problems using Intel's compilers with OpenGL? We have seen intermittent lighting issues with both 32 and 64-bit (version 9.1) Intel compilers that we do not see with gcc.

See the attached snapshots for an example.

[IMG]ftp://services.espycorp.com/pub/good.jpg[/IMG]
Normal
[IMG]ftp://services.espycorp.com/pub/error3.jpg[/IMG]
Error

Thanks,
bkoz

ssnyder 04-05-07 07:59 AM

Re: Using Intel compilers
 
Quote:

Originally Posted by bkoz
Has anyone experienced problems using Intel's compilers with OpenGL? We have seen intermittent lighting issues with both 32 and 64-bit (version 9.1) Intel compilers that we do not see with gcc.

See the attached snapshots for an example.

[IMG]ftp://services.espycorp.com/pub/good.jpg[/IMG]
Normal
[IMG]ftp://services.espycorp.com/pub/error3.jpg[/IMG]
Error

Thanks,
bkoz

Try adjusting the floating-point optimization. I've seen the compiler be over-aggressive with FP code generation and fixed it by forcing precise FP code.


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