6557c28ef7
FIX: StandardShapes::MakeCone() - face order was incorrect in 50% of all cases. Implemented StandardShapes::MakeCircle(). Fixed a compiler warning in B3DImporter.cpp. Modified cone.nff - one texture isn't found, that's ok. The mapping should be better visible now. git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@299 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
41 lines
983 B
C
41 lines
983 B
C
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#if (!defined AI_QNAN_H_INCLUDED)
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#define AI_QNAN_H_INCLUDED
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// Data structure for a 32 Bit IEEE 754 floating-point number
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union _IEEESingle
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{
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float Float;
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struct
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{
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uint32_t Frac : 23;
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uint32_t Exp : 8;
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uint32_t Sign : 1;
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} IEEE;
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} ;
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// ---------------------------------------------------------------------------
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// check whether a float is NaN
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AI_FORCE_INLINE bool is_qnan(float in)
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{
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return (in != in);
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}
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// ---------------------------------------------------------------------------
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// check whether a float is NOT NaN.
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AI_FORCE_INLINE bool is_not_qnan(float in)
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{
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return (in == in);
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}
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// ---------------------------------------------------------------------------
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// check whether a float is either NaN or (+/-) INF. Denorms return false,
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// they're treated like normal values.
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AI_FORCE_INLINE bool is_special_float(float in)
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{
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return (((_IEEESingle*)&in)->IEEE.Exp == (1u << 8)-1);
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}
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#endif // !! AI_QNAN_H_INCLUDED
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