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root/radiance/ray/src/common/mat4.h
Revision: 2.12
Committed: Mon Jul 14 22:23:59 2003 UTC (20 years, 8 months ago) by schorsch
Content type: text/plain
Branch: MAIN
CVS Tags: rad5R4, rad5R2, rad4R2P2, rad5R0, rad5R1, rad3R7P2, rad3R7P1, rad4R2, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad5R3, HEAD
Changes since 2.11: +5 -4 lines
Log Message:
Instrumented headers against multiple inclusion and for use from C++.
Moved includes in headers out of "C" scope.

File Contents

# Content
1 /* RCSid $Id: mat4.h,v 2.11 2003/06/30 14:59:11 schorsch Exp $ */
2 /*
3 * Definitions for 4x4 matrix operations
4 */
5 #ifndef _RAD_MAT4_H_
6 #define _RAD_MAT4_H_
7
8 #include <string.h>
9
10 #include "fvect.h"
11
12 #ifdef __cplusplus
13 extern "C" {
14 #endif
15
16 typedef RREAL MAT4[4][4];
17
18 #define copymat4(m4a,m4b) (void)memcpy((void *)m4a,(void *)m4b,sizeof(MAT4))
19
20 #define MAT4IDENT { {1.,0.,0.,0.}, {0.,1.,0.,0.}, \
21 {0.,0.,1.,0.}, {0.,0.,0.,1.} }
22
23 extern MAT4 m4ident;
24
25 #define setident4(m4) copymat4(m4, m4ident)
26
27
28 extern void multmat4(MAT4 m4a, MAT4 m4b, MAT4 m4c);
29 extern void multv3(FVECT v3a, FVECT v3b, MAT4 m4);
30 extern void multp3(FVECT p3a, FVECT p3b, MAT4 m4);
31 extern int invmat4(MAT4 inverse, MAT4 mat);
32
33
34 #ifdef __cplusplus
35 }
36 #endif
37 #endif /* _RAD_MAT4_H_ */
38