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|00002c20| 57 4f 52 44 20 6c 69 6e | 65 77 69 64 74 68 3b 0a |WORD lin|ewidth;.|
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|00004600| 70 6f 72 74 65 64 20 62 | 79 20 74 68 65 20 50 4f |ported b|y the PO|
|00004610| 56 2d 52 61 79 20 54 65 | 61 6d 2e 20 20 54 68 65 |V-Ray Te|am.  The|
|00004620| 72 65 20 61 72 65 20 73 | 74 72 69 63 74 20 72 75 |re are s|trict ru|
|00004630| 6c 65 73 20 75 6e 64 65 | 72 0a 2a 20 20 77 68 69 |les unde|r.*  whi|
|00004640| 63 68 20 79 6f 75 20 61 | 72 65 20 70 65 72 6d 69 |ch you a|re permi|
|00004650| 74 74 65 64 20 74 6f 20 | 75 73 65 20 74 68 69 73 |tted to |use this|
|00004660| 20 66 69 6c 65 2e 20 20 | 54 68 65 20 72 75 6c 65 | file.  |The rule|
|00004670| 73 20 61 72 65 20 69 6e | 20 74 68 65 20 66 69 6c |s are in| the fil|
|00004680| 65 0a 2a 20 20 6e 61 6d | 65 64 20 50 4f 56 4c 45 |e.*  nam|ed POVLE|
|00004690| 47 41 4c 2e 44 4f 43 20 | 77 68 69 63 68 20 73 68 |GAL.DOC |which sh|
|000046a0| 6f 75 6c 64 20 62 65 20 | 64 69 73 74 72 69 62 75 |ould be |distribu|
|000046b0| 74 65 64 20 77 69 74 68 | 20 74 68 69 73 20 66 69 |ted with| this fi|
|000046c0| 6c 65 2e 20 49 66 20 0a | 2a 20 20 50 4f 56 4c 45 |le. If .|*  POVLE|
|000046d0| 47 41 4c 2e 44 4f 43 20 | 69 73 20 6e 6f 74 20 61 |GAL.DOC |is not a|
|000046e0| 76 61 69 6c 61 62 6c 65 | 20 6f 72 20 66 6f 72 20 |vailable| or for |
|000046f0| 6d 6f 72 65 20 69 6e 66 | 6f 20 70 6c 65 61 73 65 |more inf|o please|
|00004700| 20 63 6f 6e 74 61 63 74 | 20 74 68 65 20 50 4f 56 | contact| the POV|
|00004710| 2d 52 61 79 0a 2a 20 20 | 54 65 61 6d 20 43 6f 6f |-Ray.*  |Team Coo|
|00004720| 72 64 69 6e 61 74 6f 72 | 20 62 79 20 6c 65 61 76 |rdinator| by leav|
|00004730| 69 6e 67 20 61 20 6d 65 | 73 73 61 67 65 20 69 6e |ing a me|ssage in|
|00004740| 20 43 6f 6d 70 75 53 65 | 72 76 65 27 73 20 47 72 | CompuSe|rve's Gr|
|00004750| 61 70 68 69 63 73 20 44 | 65 76 65 6c 6f 70 65 72 |aphics D|eveloper|
|00004760| 27 73 0a 2a 20 20 46 6f | 72 75 6d 2e 20 20 54 68 |'s.*  Fo|rum.  Th|
|00004770| 65 20 6c 61 74 65 73 74 | 20 76 65 72 73 69 6f 6e |e latest| version|
|00004780| 20 6f 66 20 50 4f 56 2d | 52 61 79 20 6d 61 79 20 | of POV-|Ray may |
|00004790| 62 65 20 66 6f 75 6e 64 | 20 74 68 65 72 65 20 61 |be found| there a|
|000047a0| 73 20 77 65 6c 6c 2e 0a | 2a 0a 2a 20 54 68 69 73 |s well..|*.* This|
|000047b0| 20 70 72 6f 67 72 61 6d | 20 69 73 20 62 61 73 65 | program| is base|
|000047c0| 64 20 6f 6e 20 74 68 65 | 20 70 6f 70 75 6c 61 72 |d on the| popular|
|000047d0| 20 44 4b 42 20 72 61 79 | 74 72 61 63 65 72 20 76 | DKB ray|tracer v|
|000047e0| 65 72 73 69 6f 6e 20 32 | 2e 31 32 2e 0a 2a 20 44 |ersion 2|.12..* D|
|000047f0| 4b 42 54 72 61 63 65 20 | 77 61 73 20 6f 72 69 67 |KBTrace |was orig|
|00004800| 69 6e 61 6c 6c 79 20 77 | 72 69 74 74 65 6e 20 62 |inally w|ritten b|
|00004810| 79 20 44 61 76 69 64 20 | 4b 2e 20 42 75 63 6b 2e |y David |K. Buck.|
|00004820| 0a 2a 20 44 4b 42 54 72 | 61 63 65 20 56 65 72 20 |.* DKBTr|ace Ver |
|00004830| 32 2e 30 2d 32 2e 31 32 | 20 77 65 72 65 20 77 72 |2.0-2.12| were wr|
|00004840| 69 74 74 65 6e 20 62 79 | 20 44 61 76 69 64 20 4b |itten by| David K|
|00004850| 2e 20 42 75 63 6b 20 26 | 20 41 61 72 6f 6e 20 41 |. Buck &| Aaron A|
|00004860| 2e 20 43 6f 6c 6c 69 6e | 73 2e 0a 2a 0a 2a 2a 2a |. Collin|s..*.***|
|00004870| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00004880| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00004890| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000048a0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000048b0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2f 0a 0a 23 69 6e |********|**/..#in|
|000048c0| 63 6c 75 64 65 20 22 66 | 72 61 6d 65 2e 68 22 0a |clude "f|rame.h".|
|000048d0| 23 69 6e 63 6c 75 64 65 | 20 22 76 65 63 74 6f 72 |#include| "vector|
|000048e0| 2e 68 22 0a 23 69 6e 63 | 6c 75 64 65 20 22 70 6f |.h".#inc|lude "po|
|000048f0| 76 70 72 6f 74 6f 2e 68 | 22 0a 0a 65 78 74 65 72 |vproto.h|"..exter|
|00004900| 6e 20 52 41 59 20 2a 56 | 50 5f 52 61 79 3b 0a 65 |n RAY *V|P_Ray;.e|
|00004910| 78 74 65 72 6e 20 6c 6f | 6e 67 20 42 6f 75 6e 64 |xtern lo|ng Bound|
|00004920| 69 6e 67 5f 52 65 67 69 | 6f 6e 5f 54 65 73 74 73 |ing_Regi|on_Tests|
|00004930| 2c 20 42 6f 75 6e 64 69 | 6e 67 5f 52 65 67 69 6f |, Boundi|ng_Regio|
|00004940| 6e 5f 54 65 73 74 73 5f | 53 75 63 63 65 65 64 65 |n_Tests_|Succeede|
|00004950| 64 3b 0a 65 78 74 65 72 | 6e 20 6c 6f 6e 67 20 43 |d;.exter|n long C|
|00004960| 6c 69 70 70 69 6e 67 5f | 52 65 67 69 6f 6e 5f 54 |lipping_|Region_T|
|00004970| 65 73 74 73 2c 20 43 6c | 69 70 70 69 6e 67 5f 52 |ests, Cl|ipping_R|
|00004980| 65 67 69 6f 6e 5f 54 65 | 73 74 73 5f 53 75 63 63 |egion_Te|sts_Succ|
|00004990| 65 65 64 65 64 3b 0a 65 | 78 74 65 72 6e 20 75 6e |eeded;.e|xtern un|
|000049a0| 73 69 67 6e 65 64 20 69 | 6e 74 20 4f 70 74 69 6f |signed i|nt Optio|
|000049b0| 6e 73 3b 0a 65 78 74 65 | 72 6e 20 6c 6f 6e 67 20 |ns;.exte|rn long |
|000049c0| 49 73 74 61 63 6b 5f 6f | 76 65 72 66 6c 6f 77 73 |Istack_o|verflows|
|000049d0| 3b 0a 65 78 74 65 72 6e | 20 69 6e 74 20 4e 75 6d |;.extern| int Num|
|000049e0| 62 65 72 5f 6f 66 5f 69 | 73 74 61 63 6b 73 3b 0a |ber_of_i|stacks;.|
|000049f0| 65 78 74 65 72 6e 20 69 | 6e 74 20 4d 61 78 5f 49 |extern i|nt Max_I|
|00004a00| 6e 74 65 72 73 65 63 74 | 69 6f 6e 73 3b 0a 65 78 |ntersect|ions;.ex|
|00004a10| 74 65 72 6e 20 49 53 54 | 41 43 4b 20 2a 66 72 65 |tern IST|ACK *fre|
|00004a20| 65 5f 69 73 74 61 63 6b | 3b 0a 0a 69 6e 74 20 49 |e_istack|;..int I|
|00004a30| 6e 74 65 72 73 65 63 74 | 69 6f 6e 20 28 52 61 79 |ntersect|ion (Ray|
|00004a40| 5f 49 6e 74 65 72 73 65 | 63 74 69 6f 6e 2c 20 4f |_Interse|ction, O|
|00004a50| 62 6a 65 63 74 2c 20 52 | 61 79 29 0a 49 4e 54 45 |bject, R|ay).INTE|
|00004a60| 52 53 45 43 54 49 4f 4e | 20 2a 52 61 79 5f 49 6e |RSECTION| *Ray_In|
|00004a70| 74 65 72 73 65 63 74 69 | 6f 6e 3b 0a 4f 42 4a 45 |tersecti|on;.OBJE|
|00004a80| 43 54 20 2a 4f 62 6a 65 | 63 74 3b 0a 52 41 59 20 |CT *Obje|ct;.RAY |
|00004a90| 2a 52 61 79 3b 0a 20 20 | 7b 0a 20 20 49 53 54 41 |*Ray;.  |{.  ISTA|
|00004aa0| 43 4b 20 2a 44 65 70 74 | 68 5f 53 74 61 63 6b 3b |CK *Dept|h_Stack;|
|00004ab0| 0a 20 20 49 4e 54 45 52 | 53 45 43 54 49 4f 4e 20 |.  INTER|SECTION |
|00004ac0| 2a 4c 6f 63 61 6c 3b 0a | 20 20 44 42 4c 20 43 6c |*Local;.|  DBL Cl|
|00004ad0| 6f 73 65 73 74 20 3d 20 | 48 55 47 45 5f 56 41 4c |osest = |HUGE_VAL|
|00004ae0| 3b 0a 0a 20 20 69 66 20 | 28 4f 62 6a 65 63 74 20 |;..  if |(Object |
|00004af0| 3d 3d 20 4e 55 4c 4c 29 | 0a 20 20 20 20 72 65 74 |== NULL)|.    ret|
|00004b00| 75 72 6e 20 28 46 41 4c | 53 45 29 3b 0a 0a 20 20 |urn (FAL|SE);..  |
|00004b10| 69 66 28 21 52 61 79 5f | 49 6e 5f 42 6f 75 6e 64 |if(!Ray_|In_Bound|
|00004b20| 73 20 28 52 61 79 2c 4f | 62 6a 65 63 74 2d 3e 42 |s (Ray,O|bject->B|
|00004b30| 6f 75 6e 64 29 29 0a 20 | 20 20 20 72 65 74 75 72 |ound)). |   retur|
|00004b40| 6e 20 28 46 41 4c 53 45 | 29 3b 0a 0a 20 20 44 65 |n (FALSE|);..  De|
|00004b50| 70 74 68 5f 53 74 61 63 | 6b 20 3d 20 6f 70 65 6e |pth_Stac|k = open|
|00004b60| 5f 69 73 74 61 63 6b 20 | 28 29 3b 0a 0a 20 20 69 |_istack |();..  i|
|00004b70| 66 20 28 41 6c 6c 5f 49 | 6e 74 65 72 73 65 63 74 |f (All_I|ntersect|
|00004b80| 69 6f 6e 73 20 28 4f 62 | 6a 65 63 74 2c 20 52 61 |ions (Ob|ject, Ra|
|00004b90| 79 2c 20 44 65 70 74 68 | 5f 53 74 61 63 6b 29 29 |y, Depth|_Stack))|
|00004ba0| 0a 20 20 20 20 7b 0a 20 | 20 20 20 77 68 69 6c 65 |.    {. |   while|
|00004bb0| 20 28 28 4c 6f 63 61 6c | 20 3d 20 70 6f 70 5f 65 | ((Local| = pop_e|
|00004bc0| 6e 74 72 79 28 44 65 70 | 74 68 5f 53 74 61 63 6b |ntry(Dep|th_Stack|
|00004bd0| 29 29 20 21 3d 20 4e 55 | 4c 4c 29 0a 20 20 20 20 |)) != NU|LL).    |
|00004be0| 20 20 69 66 20 28 4c 6f | 63 61 6c 2d 3e 44 65 70 |  if (Lo|cal->Dep|
|00004bf0| 74 68 20 3c 20 43 6c 6f | 73 65 73 74 29 0a 20 20 |th < Clo|sest).  |
|00004c00| 20 20 20 20 20 20 7b 0a | 20 20 20 20 20 20 20 20 |      {.|        |
|00004c10| 2a 52 61 79 5f 49 6e 74 | 65 72 73 65 63 74 69 6f |*Ray_Int|ersectio|
|00004c20| 6e 20 3d 20 2a 4c 6f 63 | 61 6c 3b 0a 20 20 20 20 |n = *Loc|al;.    |
|00004c30| 20 20 20 20 43 6c 6f 73 | 65 73 74 20 3d 20 4c 6f |    Clos|est = Lo|
|00004c40| 63 61 6c 2d 3e 44 65 70 | 74 68 3b 0a 20 20 20 20 |cal->Dep|th;.    |
|00004c50| 20 20 20 20 7d 0a 20 20 | 20 20 63 6c 6f 73 65 5f |    }.  |  close_|
|00004c60| 69 73 74 61 63 6b 20 28 | 44 65 70 74 68 5f 53 74 |istack (|Depth_St|
|00004c70| 61 63 6b 29 3b 0a 20 20 | 20 20 72 65 74 75 72 6e |ack);.  |  return|
|00004c80| 20 28 54 52 55 45 29 3b | 0a 20 20 20 20 7d 0a 20 | (TRUE);|.    }. |
|00004c90| 20 65 6c 73 65 0a 20 20 | 20 20 7b 0a 20 20 20 20 | else.  |  {.    |
|00004ca0| 63 6c 6f 73 65 5f 69 73 | 74 61 63 6b 20 28 44 65 |close_is|tack (De|
|00004cb0| 70 74 68 5f 53 74 61 63 | 6b 29 3b 0a 20 20 20 20 |pth_Stac|k);.    |
|00004cc0| 72 65 74 75 72 6e 20 28 | 46 41 4c 53 45 29 3b 0a |return (|FALSE);.|
|00004cd0| 20 20 20 20 7d 0a 20 20 | 7d 0a 0a 69 6e 74 20 52 |    }.  |}..int R|
|00004ce0| 61 79 5f 49 6e 5f 42 6f | 75 6e 64 73 20 28 52 61 |ay_In_Bo|unds (Ra|
|00004cf0| 79 2c 42 6f 75 6e 64 73 | 29 0a 52 41 59 20 2a 52 |y,Bounds|).RAY *R|
|00004d00| 61 79 3b 0a 4f 42 4a 45 | 43 54 20 2a 42 6f 75 6e |ay;.OBJE|CT *Boun|
|00004d10| 64 73 3b 0a 20 20 7b 0a | 20 20 4f 42 4a 45 43 54 |ds;.  {.|  OBJECT|
|00004d20| 20 2a 42 6f 75 6e 64 3b | 0a 20 20 49 4e 54 45 52 | *Bound;|.  INTER|
|00004d30| 53 45 43 54 49 4f 4e 20 | 4c 6f 63 61 6c 3b 0a 0a |SECTION |Local;..|
|00004d40| 20 20 66 6f 72 20 28 42 | 6f 75 6e 64 20 3d 20 42 |  for (B|ound = B|
|00004d50| 6f 75 6e 64 73 3b 0a 20 | 20 42 6f 75 6e 64 20 21 |ounds;. | Bound !|
|00004d60| 3d 20 4e 55 4c 4c 3b 0a | 20 20 42 6f 75 6e 64 20 |= NULL;.|  Bound |
|00004d70| 3d 20 42 6f 75 6e 64 2d | 3e 53 69 62 6c 69 6e 67 |= Bound-|>Sibling|
|00004d80| 29 0a 20 20 20 20 7b 0a | 20 20 20 20 42 6f 75 6e |).    {.|    Boun|
|00004d90| 64 69 6e 67 5f 52 65 67 | 69 6f 6e 5f 54 65 73 74 |ding_Reg|ion_Test|
|00004da0| 73 2b 2b 3b 0a 0a 20 20 | 20 20 69 66 20 28 21 49 |s++;..  |  if (!I|
|00004db0| 6e 74 65 72 73 65 63 74 | 69 6f 6e 20 28 26 4c 6f |ntersect|ion (&Lo|
|00004dc0| 63 61 6c 2c 20 42 6f 75 | 6e 64 2c 20 52 61 79 29 |cal, Bou|nd, Ray)|
|00004dd0| 29 0a 20 20 20 20 20 20 | 69 66 20 28 21 49 6e 73 |).      |if (!Ins|
|00004de0| 69 64 65 5f 4f 62 6a 65 | 63 74 28 26 52 61 79 2d |ide_Obje|ct(&Ray-|
|00004df0| 3e 49 6e 69 74 69 61 6c | 2c 42 6f 75 6e 64 29 29 |>Initial|,Bound))|
|00004e00| 0a 20 20 20 20 20 20 20 | 20 72 65 74 75 72 6e 20 |.       | return |
|00004e10| 28 46 41 4c 53 45 29 3b | 0a 0a 20 20 20 20 42 6f |(FALSE);|..    Bo|
|00004e20| 75 6e 64 69 6e 67 5f 52 | 65 67 69 6f 6e 5f 54 65 |unding_R|egion_Te|
|00004e30| 73 74 73 5f 53 75 63 63 | 65 65 64 65 64 2b 2b 3b |sts_Succ|eeded++;|
|00004e40| 0a 20 20 20 20 7d 0a 0a | 20 20 72 65 74 75 72 6e |.    }..|  return|
|00004e50| 20 28 54 52 55 45 29 3b | 0a 20 20 7d 0a 0a 69 6e | (TRUE);|.  }..in|
|00004e60| 74 20 50 6f 69 6e 74 5f | 49 6e 5f 43 6c 69 70 20 |t Point_|In_Clip |
|00004e70| 28 49 50 6f 69 6e 74 2c | 20 43 6c 69 70 29 0a 56 |(IPoint,| Clip).V|
|00004e80| 45 43 54 4f 52 20 2a 49 | 50 6f 69 6e 74 3b 0a 4f |ECTOR *I|Point;.O|
|00004e90| 42 4a 45 43 54 20 2a 43 | 6c 69 70 3b 0a 20 20 7b |BJECT *C|lip;.  {|
|00004ea0| 0a 20 20 4f 42 4a 45 43 | 54 20 2a 4c 6f 63 61 6c |.  OBJEC|T *Local|
|00004eb0| 5f 43 6c 69 70 3b 0a 0a | 20 20 66 6f 72 20 28 4c |_Clip;..|  for (L|
|00004ec0| 6f 63 61 6c 5f 43 6c 69 | 70 20 3d 20 43 6c 69 70 |ocal_Cli|p = Clip|
|00004ed0| 3b 0a 20 20 4c 6f 63 61 | 6c 5f 43 6c 69 70 20 21 |;.  Loca|l_Clip !|
|00004ee0| 3d 20 4e 55 4c 4c 3b 0a | 20 20 4c 6f 63 61 6c 5f |= NULL;.|  Local_|
|00004ef0| 43 6c 69 70 20 3d 20 4c | 6f 63 61 6c 5f 43 6c 69 |Clip = L|ocal_Cli|
|00004f00| 70 2d 3e 53 69 62 6c 69 | 6e 67 29 0a 20 20 20 20 |p->Sibli|ng).    |
|00004f10| 7b 0a 20 20 20 20 43 6c | 69 70 70 69 6e 67 5f 52 |{.    Cl|ipping_R|
|00004f20| 65 67 69 6f 6e 5f 54 65 | 73 74 73 2b 2b 3b 0a 20 |egion_Te|sts++;. |
|00004f30| 20 20 20 69 66 20 28 21 | 49 6e 73 69 64 65 5f 4f |   if (!|Inside_O|
|00004f40| 62 6a 65 63 74 28 49 50 | 6f 69 6e 74 2c 20 4c 6f |bject(IP|oint, Lo|
|00004f50| 63 61 6c 5f 43 6c 69 70 | 29 29 20 0a 20 20 20 20 |cal_Clip|)) .    |
|00004f60| 20 20 72 65 74 75 72 6e | 20 28 46 41 4c 53 45 29 |  return| (FALSE)|
|00004f70| 3b 0a 0a 20 20 20 20 43 | 6c 69 70 70 69 6e 67 5f |;..    C|lipping_|
|00004f80| 52 65 67 69 6f 6e 5f 54 | 65 73 74 73 5f 53 75 63 |Region_T|ests_Suc|
|00004f90| 63 65 65 64 65 64 2b 2b | 3b 0a 20 20 20 20 7d 0a |ceeded++|;.    }.|
|00004fa0| 20 20 72 65 74 75 72 6e | 20 28 54 52 55 45 29 3b |  return| (TRUE);|
|00004fb0| 0a 20 20 7d 0a 0a 4f 42 | 4a 45 43 54 20 2a 43 6f |.  }..OB|JECT *Co|
|00004fc0| 70 79 5f 42 6f 75 6e 64 | 5f 43 6c 69 70 20 28 4f |py_Bound|_Clip (O|
|00004fd0| 6c 64 29 0a 4f 42 4a 45 | 43 54 20 2a 4f 6c 64 3b |ld).OBJE|CT *Old;|
|00004fe0| 0a 20 20 7b 0a 20 20 4f | 42 4a 45 43 54 20 2a 43 |.  {.  O|BJECT *C|
|00004ff0| 75 72 72 65 6e 74 2c 20 | 2a 4e 65 77 2c 20 2a 50 |urrent, |*New, *P|
|00005000| 72 65 76 2c 20 2a 46 69 | 72 73 74 3b 0a 0a 20 20 |rev, *Fi|rst;..  |
|00005010| 46 69 72 73 74 20 3d 20 | 50 72 65 76 20 3d 20 4e |First = |Prev = N|
|00005020| 55 4c 4c 3b 0a 0a 20 20 | 66 6f 72 20 28 43 75 72 |ULL;..  |for (Cur|
|00005030| 72 65 6e 74 20 3d 20 4f | 6c 64 3b 0a 20 20 43 75 |rent = O|ld;.  Cu|
|00005040| 72 72 65 6e 74 20 21 3d | 20 4e 55 4c 4c 20 3b 0a |rrent !=| NULL ;.|
|00005050| 20 20 43 75 72 72 65 6e | 74 20 3d 20 43 75 72 72 |  Curren|t = Curr|
|00005060| 65 6e 74 2d 3e 53 69 62 | 6c 69 6e 67 29 20 0a 20 |ent->Sib|ling) . |
|00005070| 20 20 20 7b 0a 20 20 20 | 20 4e 65 77 20 3d 20 43 |   {.   | New = C|
|00005080| 6f 70 79 5f 4f 62 6a 65 | 63 74 20 28 43 75 72 72 |opy_Obje|ct (Curr|
|00005090| 65 6e 74 29 3b 0a 20 20 | 20 20 69 66 20 28 46 69 |ent);.  |  if (Fi|
|000050a0| 72 73 74 20 3d 3d 20 4e | 55 4c 4c 29 0a 20 20 20 |rst == N|ULL).   |
|000050b0| 20 20 20 46 69 72 73 74 | 20 3d 20 4e 65 77 3b 0a |   First| = New;.|
|000050c0| 20 20 20 20 69 66 20 28 | 50 72 65 76 20 21 3d 20 |    if (|Prev != |
|000050d0| 4e 55 4c 4c 29 0a 20 20 | 20 20 20 20 50 72 65 76 |NULL).  |    Prev|
|000050e0| 2d 3e 53 69 62 6c 69 6e | 67 20 3d 20 4e 65 77 3b |->Siblin|g = New;|
|000050f0| 0a 20 20 20 20 50 72 65 | 76 20 3d 20 4e 65 77 3b |.    Pre|v = New;|
|00005100| 0a 20 20 20 20 7d 0a 20 | 20 72 65 74 75 72 6e 20 |.    }. | return |
|00005110| 28 46 69 72 73 74 29 3b | 0a 20 20 7d 0a 0a 4f 42 |(First);|.  }..OB|
|00005120| 4a 45 43 54 20 2a 43 6f | 70 79 5f 4f 62 6a 65 63 |JECT *Co|py_Objec|
|00005130| 74 20 28 4f 6c 64 29 0a | 4f 42 4a 45 43 54 20 2a |t (Old).|OBJECT *|
|00005140| 4f 6c 64 3b 0a 20 20 7b | 0a 20 20 4f 42 4a 45 43 |Old;.  {|.  OBJEC|
|00005150| 54 20 2a 4e 65 77 3b 0a | 0a 20 20 69 66 20 28 4f |T *New;.|.  if (O|
|00005160| 6c 64 20 3d 3d 20 4e 55 | 4c 4c 29 0a 20 20 20 20 |ld == NU|LL).    |
|00005170| 72 65 74 75 72 6e 20 28 | 4e 55 4c 4c 29 3b 0a 0a |return (|NULL);..|
|00005180| 20 20 4e 65 77 20 3d 20 | 43 6f 70 79 20 28 4f 6c |  New = |Copy (Ol|
|00005190| 64 29 3b 0a 0a 20 20 4e | 65 77 2d 3e 4d 65 74 68 |d);..  N|ew->Meth|
|000051a0| 6f 64 73 20 3d 20 4f 6c | 64 2d 3e 4d 65 74 68 6f |ods = Ol|d->Metho|
|000051b0| 64 73 3b 0a 20 20 4e 65 | 77 2d 3e 54 79 70 65 20 |ds;.  Ne|w->Type |
|000051c0| 20 20 20 3d 20 4f 6c 64 | 2d 3e 54 79 70 65 3b 0a |   = Old|->Type;.|
|000051d0| 20 20 4e 65 77 2d 3e 53 | 69 62 6c 69 6e 67 20 3d |  New->S|ibling =|
|000051e0| 20 4f 6c 64 2d 3e 53 69 | 62 6c 69 6e 67 3b 0a 20 | Old->Si|bling;. |
|000051f0| 20 4e 65 77 2d 3e 54 65 | 78 74 75 72 65 20 3d 20 | New->Te|xture = |
|00005200| 4f 6c 64 2d 3e 54 65 78 | 74 75 72 65 3b 0a 20 20 |Old->Tex|ture;.  |
|00005210| 4e 65 77 2d 3e 42 6f 75 | 6e 64 20 20 20 3d 20 4f |New->Bou|nd   = O|
|00005220| 6c 64 2d 3e 42 6f 75 6e | 64 3b 0a 20 20 4e 65 77 |ld->Boun|d;.  New|
|00005230| 2d 3e 43 6c 69 70 20 20 | 20 20 3d 20 4f 6c 64 2d |->Clip  |  = Old-|
|00005240| 3e 43 6c 69 70 3b 0a 20 | 20 4e 65 77 2d 3e 42 6f |>Clip;. | New->Bo|
|00005250| 75 6e 64 73 20 20 3d 20 | 4f 6c 64 2d 3e 42 6f 75 |unds  = |Old->Bou|
|00005260| 6e 64 73 3b 0a 20 20 4e | 65 77 2d 3e 4e 6f 5f 53 |nds;.  N|ew->No_S|
|00005270| 68 61 64 6f 77 5f 46 6c | 61 67 20 3d 20 4f 6c 64 |hadow_Fl|ag = Old|
|00005280| 2d 3e 4e 6f 5f 53 68 61 | 64 6f 77 5f 46 6c 61 67 |->No_Sha|dow_Flag|
|00005290| 3b 0a 0a 20 20 4e 65 77 | 2d 3e 53 69 62 6c 69 6e |;..  New|->Siblin|
|000052a0| 67 20 3d 20 4e 55 4c 4c | 3b 20 20 20 20 20 20 20 |g = NULL|;       |
|000052b0| 20 20 20 2f 2a 20 49 6d | 70 6f 72 74 61 6e 74 20 |   /* Im|portant |
|000052c0| 2a 2f 0a 0a 20 20 4e 65 | 77 2d 3e 54 65 78 74 75 |*/..  Ne|w->Textu|
|000052d0| 72 65 20 3d 20 43 6f 70 | 79 5f 54 65 78 74 75 72 |re = Cop|y_Textur|
|000052e0| 65 73 20 28 4f 6c 64 2d | 3e 54 65 78 74 75 72 65 |es (Old-|>Texture|
|000052f0| 29 3b 0a 20 20 4e 65 77 | 2d 3e 42 6f 75 6e 64 20 |);.  New|->Bound |
|00005300| 20 20 3d 20 43 6f 70 79 | 5f 42 6f 75 6e 64 5f 43 |  = Copy|_Bound_C|
|00005310| 6c 69 70 20 28 4f 6c 64 | 2d 3e 42 6f 75 6e 64 29 |lip (Old|->Bound)|
|00005320| 3b 0a 20 20 69 66 20 28 | 4f 6c 64 2d 3e 42 6f 75 |;.  if (|Old->Bou|
|00005330| 6e 64 20 21 3d 20 4f 6c | 64 2d 3e 43 6c 69 70 29 |nd != Ol|d->Clip)|
|00005340| 0a 20 20 20 20 4e 65 77 | 2d 3e 43 6c 69 70 20 20 |.    New|->Clip  |
|00005350| 3d 20 43 6f 70 79 5f 42 | 6f 75 6e 64 5f 43 6c 69 |= Copy_B|ound_Cli|
|00005360| 70 20 28 4f 6c 64 2d 3e | 43 6c 69 70 29 3b 0a 20 |p (Old->|Clip);. |
|00005370| 20 65 6c 73 65 0a 20 20 | 20 20 4e 65 77 2d 3e 43 | else.  |  New->C|
|00005380| 6c 69 70 20 20 3d 20 4e | 65 77 2d 3e 42 6f 75 6e |lip  = N|ew->Boun|
|00005390| 64 3b 0a 0a 20 20 72 65 | 74 75 72 6e 20 28 4e 65 |d;..  re|turn (Ne|
|000053a0| 77 29 3b 0a 20 20 7d 20 | 20 20 0a 0a 76 6f 69 64 |w);.  } |  ..void|
|000053b0| 20 54 72 61 6e 73 6c 61 | 74 65 5f 4f 62 6a 65 63 | Transla|te_Objec|
|000053c0| 74 20 28 4f 62 6a 65 63 | 74 2c 20 56 65 63 74 6f |t (Objec|t, Vecto|
|000053d0| 72 29 0a 4f 42 4a 45 43 | 54 20 2a 4f 62 6a 65 63 |r).OBJEC|T *Objec|
|000053e0| 74 3b 0a 56 45 43 54 4f | 52 20 2a 56 65 63 74 6f |t;.VECTO|R *Vecto|
|000053f0| 72 3b 0a 20 20 7b 0a 20 | 20 4f 42 4a 45 43 54 20 |r;.  {. | OBJECT |
|00005400| 2a 53 69 62 3b 0a 0a 20 | 20 69 66 20 28 4f 62 6a |*Sib;.. | if (Obj|
|00005410| 65 63 74 20 3d 3d 20 4e | 55 4c 4c 29 0a 20 20 20 |ect == N|ULL).   |
|00005420| 20 72 65 74 75 72 6e 3b | 0a 0a 20 20 66 6f 72 20 | return;|..  for |
|00005430| 28 53 69 62 20 3d 20 4f | 62 6a 65 63 74 2d 3e 42 |(Sib = O|bject->B|
|00005440| 6f 75 6e 64 3b 0a 20 20 | 53 69 62 20 21 3d 20 4e |ound;.  |Sib != N|
|00005450| 55 4c 4c 3b 0a 20 20 53 | 69 62 20 3d 20 53 69 62 |ULL;.  S|ib = Sib|
|00005460| 2d 3e 53 69 62 6c 69 6e | 67 29 0a 20 20 20 20 54 |->Siblin|g).    T|
|00005470| 72 61 6e 73 6c 61 74 65 | 5f 4f 62 6a 65 63 74 20 |ranslate|_Object |
|00005480| 28 53 69 62 2c 20 56 65 | 63 74 6f 72 29 3b 0a 0a |(Sib, Ve|ctor);..|
|00005490| 20 20 69 66 20 28 4f 62 | 6a 65 63 74 2d 3e 43 6c |  if (Ob|ject->Cl|
|000054a0| 69 70 20 21 3d 20 4f 62 | 6a 65 63 74 2d 3e 42 6f |ip != Ob|ject->Bo|
|000054b0| 75 6e 64 29 0a 20 20 20 | 20 66 6f 72 20 28 53 69 |und).   | for (Si|
|000054c0| 62 20 3d 20 4f 62 6a 65 | 63 74 2d 3e 43 6c 69 70 |b = Obje|ct->Clip|
|000054d0| 3b 0a 20 20 53 69 62 20 | 21 3d 20 4e 55 4c 4c 3b |;.  Sib |!= NULL;|
|000054e0| 0a 20 20 53 69 62 20 3d | 20 53 69 62 2d 3e 53 69 |.  Sib =| Sib->Si|
|000054f0| 62 6c 69 6e 67 29 0a 20 | 20 20 20 54 72 61 6e 73 |bling). |   Trans|
|00005500| 6c 61 74 65 5f 4f 62 6a | 65 63 74 20 28 53 69 62 |late_Obj|ect (Sib|
|00005510| 2c 20 56 65 63 74 6f 72 | 29 3b 0a 0a 20 20 54 72 |, Vector|);..  Tr|
|00005520| 61 6e 73 6c 61 74 65 5f | 54 65 78 74 75 72 65 73 |anslate_|Textures|
|00005530| 20 28 4f 62 6a 65 63 74 | 2d 3e 54 65 78 74 75 72 | (Object|->Textur|
|00005540| 65 2c 56 65 63 74 6f 72 | 29 3b 0a 0a 20 20 54 72 |e,Vector|);..  Tr|
|00005550| 61 6e 73 6c 61 74 65 20 | 28 4f 62 6a 65 63 74 2c |anslate |(Object,|
|00005560| 56 65 63 74 6f 72 29 3b | 0a 20 20 7d 0a 0a 76 6f |Vector);|.  }..vo|
|00005570| 69 64 20 52 6f 74 61 74 | 65 5f 4f 62 6a 65 63 74 |id Rotat|e_Object|
|00005580| 20 28 4f 62 6a 65 63 74 | 2c 20 56 65 63 74 6f 72 | (Object|, Vector|
|00005590| 29 0a 4f 42 4a 45 43 54 | 20 2a 4f 62 6a 65 63 74 |).OBJECT| *Object|
|000055a0| 3b 0a 56 45 43 54 4f 52 | 20 2a 56 65 63 74 6f 72 |;.VECTOR| *Vector|
|000055b0| 3b 0a 20 20 7b 0a 20 20 | 4f 42 4a 45 43 54 20 2a |;.  {.  |OBJECT *|
|000055c0| 53 69 62 3b 0a 0a 20 20 | 69 66 20 28 4f 62 6a 65 |Sib;..  |if (Obje|
|000055d0| 63 74 20 3d 3d 20 4e 55 | 4c 4c 29 0a 20 20 20 20 |ct == NU|LL).    |
|000055e0| 72 65 74 75 72 6e 3b 0a | 0a 20 20 66 6f 72 20 28 |return;.|.  for (|
|000055f0| 53 69 62 20 3d 20 4f 62 | 6a 65 63 74 2d 3e 42 6f |Sib = Ob|ject->Bo|
|00005600| 75 6e 64 3b 0a 20 20 53 | 69 62 20 21 3d 20 4e 55 |und;.  S|ib != NU|
|00005610| 4c 4c 3b 0a 20 20 53 69 | 62 20 3d 20 53 69 62 2d |LL;.  Si|b = Sib-|
|00005620| 3e 53 69 62 6c 69 6e 67 | 29 0a 20 20 20 20 52 6f |>Sibling|).    Ro|
|00005630| 74 61 74 65 5f 4f 62 6a | 65 63 74 20 28 53 69 62 |tate_Obj|ect (Sib|
|00005640| 2c 20 56 65 63 74 6f 72 | 29 3b 0a 0a 20 20 69 66 |, Vector|);..  if|
|00005650| 20 28 4f 62 6a 65 63 74 | 2d 3e 43 6c 69 70 20 21 | (Object|->Clip !|
|00005660| 3d 20 4f 62 6a 65 63 74 | 2d 3e 42 6f 75 6e 64 29 |= Object|->Bound)|
|00005670| 0a 20 20 20 20 66 6f 72 | 20 28 53 69 62 20 3d 20 |.    for| (Sib = |
|00005680| 4f 62 6a 65 63 74 2d 3e | 43 6c 69 70 3b 0a 20 20 |Object->|Clip;.  |
|00005690| 53 69 62 20 21 3d 20 4e | 55 4c 4c 3b 0a 20 20 53 |Sib != N|ULL;.  S|
|000056a0| 69 62 20 3d 20 53 69 62 | 2d 3e 53 69 62 6c 69 6e |ib = Sib|->Siblin|
|000056b0| 67 29 0a 20 20 20 20 52 | 6f 74 61 74 65 5f 4f 62 |g).    R|otate_Ob|
|000056c0| 6a 65 63 74 20 28 53 69 | 62 2c 20 56 65 63 74 6f |ject (Si|b, Vecto|
|000056d0| 72 29 3b 0a 0a 20 20 52 | 6f 74 61 74 65 5f 54 65 |r);..  R|otate_Te|
|000056e0| 78 74 75 72 65 73 20 28 | 4f 62 6a 65 63 74 2d 3e |xtures (|Object->|
|000056f0| 54 65 78 74 75 72 65 2c | 56 65 63 74 6f 72 29 3b |Texture,|Vector);|
|00005700| 0a 0a 20 20 52 6f 74 61 | 74 65 20 28 4f 62 6a 65 |..  Rota|te (Obje|
|00005710| 63 74 2c 56 65 63 74 6f | 72 29 3b 0a 20 20 7d 0a |ct,Vecto|r);.  }.|
|00005720| 0a 76 6f 69 64 20 53 63 | 61 6c 65 5f 4f 62 6a 65 |.void Sc|ale_Obje|
|00005730| 63 74 20 28 4f 62 6a 65 | 63 74 2c 20 56 65 63 74 |ct (Obje|ct, Vect|
|00005740| 6f 72 29 0a 4f 42 4a 45 | 43 54 20 2a 4f 62 6a 65 |or).OBJE|CT *Obje|
|00005750| 63 74 3b 0a 56 45 43 54 | 4f 52 20 2a 56 65 63 74 |ct;.VECT|OR *Vect|
|00005760| 6f 72 3b 0a 20 20 7b 0a | 20 20 4f 42 4a 45 43 54 |or;.  {.|  OBJECT|
|00005770| 20 2a 53 69 62 3b 0a 0a | 20 20 69 66 20 28 4f 62 | *Sib;..|  if (Ob|
|00005780| 6a 65 63 74 20 3d 3d 20 | 4e 55 4c 4c 29 0a 20 20 |ject == |NULL).  |
|00005790| 20 20 72 65 74 75 72 6e | 3b 0a 0a 20 20 66 6f 72 |  return|;..  for|
|000057a0| 20 28 53 69 62 20 3d 20 | 4f 62 6a 65 63 74 2d 3e | (Sib = |Object->|
|000057b0| 42 6f 75 6e 64 3b 0a 20 | 20 53 69 62 20 21 3d 20 |Bound;. | Sib != |
|000057c0| 4e 55 4c 4c 3b 0a 20 20 | 53 69 62 20 3d 20 53 69 |NULL;.  |Sib = Si|
|000057d0| 62 2d 3e 53 69 62 6c 69 | 6e 67 29 0a 20 20 20 20 |b->Sibli|ng).    |
|000057e0| 53 63 61 6c 65 5f 4f 62 | 6a 65 63 74 20 28 53 69 |Scale_Ob|ject (Si|
|000057f0| 62 2c 20 56 65 63 74 6f | 72 29 3b 0a 0a 20 20 69 |b, Vecto|r);..  i|
|00005800| 66 20 28 4f 62 6a 65 63 | 74 2d 3e 43 6c 69 70 20 |f (Objec|t->Clip |
|00005810| 21 3d 20 4f 62 6a 65 63 | 74 2d 3e 42 6f 75 6e 64 |!= Objec|t->Bound|
|00005820| 29 0a 20 20 20 20 66 6f | 72 20 28 53 69 62 20 3d |).    fo|r (Sib =|
|00005830| 20 4f 62 6a 65 63 74 2d | 3e 43 6c 69 70 3b 0a 20 | Object-|>Clip;. |
|00005840| 20 53 69 62 20 21 3d 20 | 4e 55 4c 4c 3b 0a 20 20 | Sib != |NULL;.  |
|00005850| 53 69 62 20 3d 20 53 69 | 62 2d 3e 53 69 62 6c 69 |Sib = Si|b->Sibli|
|00005860| 6e 67 29 0a 20 20 20 20 | 53 63 61 6c 65 5f 4f 62 |ng).    |Scale_Ob|
|00005870| 6a 65 63 74 20 28 53 69 | 62 2c 20 56 65 63 74 6f |ject (Si|b, Vecto|
|00005880| 72 29 3b 0a 0a 20 20 53 | 63 61 6c 65 5f 54 65 78 |r);..  S|cale_Tex|
|00005890| 74 75 72 65 73 20 28 4f | 62 6a 65 63 74 2d 3e 54 |tures (O|bject->T|
|000058a0| 65 78 74 75 72 65 2c 56 | 65 63 74 6f 72 29 3b 0a |exture,V|ector);.|
|000058b0| 0a 20 20 53 63 61 6c 65 | 20 28 4f 62 6a 65 63 74 |.  Scale| (Object|
|000058c0| 2c 56 65 63 74 6f 72 29 | 3b 0a 20 20 7d 0a 0a 69 |,Vector)|;.  }..i|
|000058d0| 6e 74 20 49 6e 73 69 64 | 65 5f 4f 62 6a 65 63 74 |nt Insid|e_Object|
|000058e0| 20 28 49 50 6f 69 6e 74 | 2c 20 4f 62 6a 65 63 74 | (IPoint|, Object|
|000058f0| 29 0a 56 45 43 54 4f 52 | 20 2a 49 50 6f 69 6e 74 |).VECTOR| *IPoint|
|00005900| 3b 0a 4f 42 4a 45 43 54 | 20 2a 4f 62 6a 65 63 74 |;.OBJECT| *Object|
|00005910| 3b 0a 20 20 7b 0a 20 20 | 4f 42 4a 45 43 54 20 2a |;.  {.  |OBJECT *|
|00005920| 53 69 62 3b 0a 0a 20 20 | 2f 2a 20 72 65 6d 6f 76 |Sib;..  |/* remov|
|00005930| 65 64 20 37 2f 31 39 2f | 39 32 20 43 45 59 20 20 |ed 7/19/|92 CEY  |
|00005940| 20 0a 20 20 20 66 6f 72 | 20 28 53 69 62 20 3d 20 | .   for| (Sib = |
|00005950| 4f 62 6a 65 63 74 2d 3e | 42 6f 75 6e 64 3b 0a 20 |Object->|Bound;. |
|00005960| 20 20 20 20 20 20 20 53 | 69 62 20 21 3d 20 4e 55 |       S|ib != NU|
|00005970| 4c 4c 3b 0a 20 20 20 20 | 20 20 20 20 53 69 62 20 |LL;.    |    Sib |
|00005980| 3d 20 53 69 62 2d 3e 53 | 69 62 6c 69 6e 67 29 0a |= Sib->S|ibling).|
|00005990| 20 20 20 20 20 69 66 20 | 28 21 49 6e 73 69 64 65 |     if |(!Inside|
|000059a0| 5f 4f 62 6a 65 63 74 28 | 49 50 6f 69 6e 74 2c 20 |_Object(|IPoint, |
|000059b0| 53 69 62 29 29 0a 20 20 | 20 20 20 20 20 72 65 74 |Sib)).  |     ret|
|000059c0| 75 72 6e 28 46 41 4c 53 | 45 29 3b 0a 2a 2f 0a 20 |urn(FALS|E);.*/. |
|000059d0| 20 66 6f 72 20 28 53 69 | 62 20 3d 20 4f 62 6a 65 | for (Si|b = Obje|
|000059e0| 63 74 2d 3e 43 6c 69 70 | 3b 0a 20 20 53 69 62 20 |ct->Clip|;.  Sib |
|000059f0| 21 3d 20 4e 55 4c 4c 3b | 0a 20 20 53 69 62 20 3d |!= NULL;|.  Sib =|
|00005a00| 20 53 69 62 2d 3e 53 69 | 62 6c 69 6e 67 29 0a 20 | Sib->Si|bling). |
|00005a10| 20 20 20 69 66 20 28 21 | 49 6e 73 69 64 65 5f 4f |   if (!|Inside_O|
|00005a20| 62 6a 65 63 74 28 49 50 | 6f 69 6e 74 2c 20 53 69 |bject(IP|oint, Si|
|00005a30| 62 29 29 0a 20 20 20 20 | 20 20 72 65 74 75 72 6e |b)).    |  return|
|00005a40| 28 46 41 4c 53 45 29 3b | 0a 0a 20 20 72 65 74 75 |(FALSE);|..  retu|
|00005a50| 72 6e 20 28 49 6e 73 69 | 64 65 28 49 50 6f 69 6e |rn (Insi|de(IPoin|
|00005a60| 74 2c 4f 62 6a 65 63 74 | 29 29 3b 0a 20 20 7d 0a |t,Object|));.  }.|
|00005a70| 0a 76 6f 69 64 20 49 6e | 76 65 72 74 5f 4f 62 6a |.void In|vert_Obj|
|00005a80| 65 63 74 20 28 4f 62 6a | 65 63 74 29 0a 4f 42 4a |ect (Obj|ect).OBJ|
|00005a90| 45 43 54 20 2a 4f 62 6a | 65 63 74 3b 0a 20 20 7b |ECT *Obj|ect;.  {|
|00005aa0| 0a 20 20 2f 2a 20 20 20 | 4f 42 4a 45 43 54 20 2a |.  /*   |OBJECT *|
|00005ab0| 53 69 62 3b 20 2a 2f 0a | 0a 20 20 69 66 20 28 4f |Sib; */.|.  if (O|
|00005ac0| 62 6a 65 63 74 20 3d 3d | 20 4e 55 4c 4c 29 0a 20 |bject ==| NULL). |
|00005ad0| 20 20 20 72 65 74 75 72 | 6e 3b 0a 0a 20 20 2f 2a |   retur|n;..  /*|
|00005ae0| 20 72 65 6d 6f 76 65 64 | 20 33 2f 32 39 2f 39 33 | removed| 3/29/93|
|00005af0| 20 43 45 59 0a 20 20 20 | 66 6f 72 20 28 53 69 62 | CEY.   |for (Sib|
|00005b00| 20 3d 20 4f 62 6a 65 63 | 74 2d 3e 43 6c 69 70 3b | = Objec|t->Clip;|
|00005b10| 0a 20 20 20 20 20 20 20 | 20 53 69 62 20 21 3d 20 |.       | Sib != |
|00005b20| 4e 55 4c 4c 3b 0a 20 20 | 20 20 20 20 20 20 53 69 |NULL;.  |      Si|
|00005b30| 62 20 3d 20 53 69 62 2d | 3e 53 69 62 6c 69 6e 67 |b = Sib-|>Sibling|
|00005b40| 29 0a 20 20 20 20 20 49 | 6e 76 65 72 74 5f 4f 62 |).     I|nvert_Ob|
|00005b50| 6a 65 63 74 20 28 53 69 | 62 29 3b 0a 2a 2f 0a 20 |ject (Si|b);.*/. |
|00005b60| 20 49 6e 76 65 72 74 20 | 28 4f 62 6a 65 63 74 29 | Invert |(Object)|
|00005b70| 3b 0a 20 20 7d 0a 0a 76 | 6f 69 64 20 44 65 73 74 |;.  }..v|oid Dest|
|00005b80| 72 6f 79 5f 4f 62 6a 65 | 63 74 20 28 4f 62 6a 65 |roy_Obje|ct (Obje|
|00005b90| 63 74 29 0a 4f 42 4a 45 | 43 54 20 2a 4f 62 6a 65 |ct).OBJE|CT *Obje|
|00005ba0| 63 74 3b 0a 20 20 7b 0a | 20 20 4f 42 4a 45 43 54 |ct;.  {.|  OBJECT|
|00005bb0| 20 2a 53 69 62 3b 0a 0a | 20 20 77 68 69 6c 65 20 | *Sib;..|  while |
|00005bc0| 28 4f 62 6a 65 63 74 20 | 21 3d 20 4e 55 4c 4c 29 |(Object |!= NULL)|
|00005bd0| 0a 20 20 20 20 7b 0a 20 | 20 20 20 44 65 73 74 72 |.    {. |   Destr|
|00005be0| 6f 79 5f 54 65 78 74 75 | 72 65 73 20 28 4f 62 6a |oy_Textu|res (Obj|
|00005bf0| 65 63 74 2d 3e 54 65 78 | 74 75 72 65 29 3b 0a 20 |ect->Tex|ture);. |
|00005c00| 20 20 20 44 65 73 74 72 | 6f 79 5f 4f 62 6a 65 63 |   Destr|oy_Objec|
|00005c10| 74 20 28 4f 62 6a 65 63 | 74 2d 3e 42 6f 75 6e 64 |t (Objec|t->Bound|
|00005c20| 29 3b 0a 20 20 20 20 69 | 66 20 28 4f 62 6a 65 63 |);.    i|f (Objec|
|00005c30| 74 2d 3e 42 6f 75 6e 64 | 20 21 3d 20 4f 62 6a 65 |t->Bound| != Obje|
|00005c40| 63 74 2d 3e 43 6c 69 70 | 29 0a 20 20 20 20 20 20 |ct->Clip|).      |
|00005c50| 44 65 73 74 72 6f 79 5f | 4f 62 6a 65 63 74 20 28 |Destroy_|Object (|
|00005c60| 4f 62 6a 65 63 74 2d 3e | 43 6c 69 70 29 3b 0a 20 |Object->|Clip);. |
|00005c70| 20 20 20 53 69 62 20 3d | 20 4f 62 6a 65 63 74 2d |   Sib =| Object-|
|00005c80| 3e 53 69 62 6c 69 6e 67 | 3b 0a 20 20 20 20 44 65 |>Sibling|;.    De|
|00005c90| 73 74 72 6f 79 28 4f 62 | 6a 65 63 74 29 3b 0a 20 |stroy(Ob|ject);. |
|00005ca0| 20 20 20 4f 62 6a 65 63 | 74 20 3d 20 53 69 62 3b |   Objec|t = Sib;|
|00005cb0| 0a 20 20 20 20 7d 0a 20 | 20 7d 20 20 20 0a 0a 76 |.    }. | }   ..v|
|00005cc0| 6f 69 64 20 54 72 61 6e | 73 66 6f 72 6d 5f 4f 62 |oid Tran|sform_Ob|
|00005cd0| 6a 65 63 74 20 28 4f 62 | 6a 65 63 74 2c 20 54 72 |ject (Ob|ject, Tr|
|00005ce0| 61 6e 73 29 0a 4f 42 4a | 45 43 54 20 2a 4f 62 6a |ans).OBJ|ECT *Obj|
|00005cf0| 65 63 74 3b 0a 54 52 41 | 4e 53 46 4f 52 4d 20 2a |ect;.TRA|NSFORM *|
|00005d00| 54 72 61 6e 73 3b 0a 20 | 20 7b 0a 20 20 4f 42 4a |Trans;. | {.  OBJ|
|00005d10| 45 43 54 20 2a 53 69 62 | 3b 0a 0a 20 20 69 66 20 |ECT *Sib|;..  if |
|00005d20| 28 4f 62 6a 65 63 74 20 | 3d 3d 20 4e 55 4c 4c 29 |(Object |== NULL)|
|00005d30| 0a 20 20 20 20 72 65 74 | 75 72 6e 3b 0a 0a 20 20 |.    ret|urn;..  |
|00005d40| 66 6f 72 20 28 53 69 62 | 20 3d 20 4f 62 6a 65 63 |for (Sib| = Objec|
|00005d50| 74 2d 3e 42 6f 75 6e 64 | 3b 0a 20 20 53 69 62 20 |t->Bound|;.  Sib |
|00005d60| 21 3d 20 4e 55 4c 4c 3b | 0a 20 20 53 69 62 20 3d |!= NULL;|.  Sib =|
|00005d70| 20 53 69 62 2d 3e 53 69 | 62 6c 69 6e 67 29 0a 20 | Sib->Si|bling). |
|00005d80| 20 20 20 54 72 61 6e 73 | 66 6f 72 6d 5f 4f 62 6a |   Trans|form_Obj|
|00005d90| 65 63 74 20 28 53 69 62 | 2c 20 54 72 61 6e 73 29 |ect (Sib|, Trans)|
|00005da0| 3b 0a 0a 20 20 69 66 20 | 28 4f 62 6a 65 63 74 2d |;..  if |(Object-|
|00005db0| 3e 43 6c 69 70 20 21 3d | 20 4f 62 6a 65 63 74 2d |>Clip !=| Object-|
|00005dc0| 3e 42 6f 75 6e 64 29 0a | 20 20 20 20 66 6f 72 20 |>Bound).|    for |
|00005dd0| 28 53 69 62 20 3d 20 4f | 62 6a 65 63 74 2d 3e 43 |(Sib = O|bject->C|
|00005de0| 6c 69 70 3b 0a 20 20 53 | 69 62 20 21 3d 20 4e 55 |lip;.  S|ib != NU|
|00005df0| 4c 4c 3b 0a 20 20 53 69 | 62 20 3d 20 53 69 62 2d |LL;.  Si|b = Sib-|
|00005e00| 3e 53 69 62 6c 69 6e 67 | 29 0a 20 20 20 20 54 72 |>Sibling|).    Tr|
|00005e10| 61 6e 73 66 6f 72 6d 5f | 4f 62 6a 65 63 74 20 28 |ansform_|Object (|
|00005e20| 53 69 62 2c 20 54 72 61 | 6e 73 29 3b 0a 0a 20 20 |Sib, Tra|ns);..  |
|00005e30| 54 72 61 6e 73 66 6f 72 | 6d 5f 54 65 78 74 75 72 |Transfor|m_Textur|
|00005e40| 65 73 20 28 4f 62 6a 65 | 63 74 2d 3e 54 65 78 74 |es (Obje|ct->Text|
|00005e50| 75 72 65 2c 54 72 61 6e | 73 29 3b 0a 0a 20 20 54 |ure,Tran|s);..  T|
|00005e60| 72 61 6e 73 66 6f 72 6d | 20 28 4f 62 6a 65 63 74 |ransform| (Object|
|00005e70| 2c 54 72 61 6e 73 29 3b | 0a 20 20 7d 0a 0a 76 6f |,Trans);|.  }..vo|
|00005e80| 69 64 20 63 72 65 61 74 | 65 5f 69 73 74 61 63 6b |id creat|e_istack|
|00005e90| 20 28 29 0a 20 20 7b 0a | 20 20 49 53 54 41 43 4b | ().  {.|  ISTACK|
|00005ea0| 20 2a 4e 65 77 3b 0a 0a | 20 20 69 66 20 28 28 4e | *New;..|  if ((N|
|00005eb0| 65 77 20 3d 20 28 49 53 | 54 41 43 4b 20 2a 29 20 |ew = (IS|TACK *) |
|00005ec0| 6d 61 6c 6c 6f 63 20 28 | 73 69 7a 65 6f 66 20 28 |malloc (|sizeof (|
|00005ed0| 49 53 54 41 43 4b 29 29 | 29 20 3d 3d 20 4e 55 4c |ISTACK))|) == NUL|
|00005ee0| 4c 29 20 0a 20 20 20 20 | 7b 0a 20 20 20 20 66 70 |L) .    |{.    fp|
|00005ef0| 72 69 6e 74 66 20 28 73 | 74 64 65 72 72 2c 20 22 |rintf (s|tderr, "|
|00005f00| 5c 6e 4f 75 74 20 6f 66 | 20 6d 65 6d 6f 72 79 2e |\nOut of| memory.|
|00005f10| 20 43 61 6e 6e 6f 74 20 | 61 6c 6c 6f 63 61 74 65 | Cannot |allocate|
|00005f20| 20 69 73 74 61 63 6b 22 | 29 3b 0a 20 20 20 20 63 | istack"|);.    c|
|00005f30| 6c 6f 73 65 5f 61 6c 6c | 28 29 3b 0a 20 20 20 20 |lose_all|();.    |
|00005f40| 65 78 69 74 28 31 29 3b | 0a 20 20 20 20 7d 0a 0a |exit(1);|.    }..|
|00005f50| 20 20 4e 65 77 2d 3e 6e | 65 78 74 20 3d 20 66 72 |  New->n|ext = fr|
|00005f60| 65 65 5f 69 73 74 61 63 | 6b 3b 0a 20 20 66 72 65 |ee_istac|k;.  fre|
|00005f70| 65 5f 69 73 74 61 63 6b | 20 3d 20 4e 65 77 3b 0a |e_istack| = New;.|
|00005f80| 0a 20 20 69 66 20 28 28 | 4e 65 77 2d 3e 69 73 74 |.  if ((|New->ist|
|00005f90| 61 63 6b 20 3d 20 28 49 | 4e 54 45 52 53 45 43 54 |ack = (I|NTERSECT|
|00005fa0| 49 4f 4e 20 2a 29 0a 20 | 20 20 20 6d 61 6c 6c 6f |ION *). |   mallo|
|00005fb0| 63 20 28 4d 61 78 5f 49 | 6e 74 65 72 73 65 63 74 |c (Max_I|ntersect|
|00005fc0| 69 6f 6e 73 20 2a 20 73 | 69 7a 65 6f 66 20 28 49 |ions * s|izeof (I|
|00005fd0| 4e 54 45 52 53 45 43 54 | 49 4f 4e 29 29 29 20 3d |NTERSECT|ION))) =|
|00005fe0| 3d 20 4e 55 4c 4c 29 20 | 0a 20 20 20 20 7b 0a 20 |= NULL) |.    {. |
|00005ff0| 20 20 20 66 70 72 69 6e | 74 66 20 28 73 74 64 65 |   fprin|tf (stde|
|00006000| 72 72 2c 20 22 5c 6e 4f | 75 74 20 6f 66 20 6d 65 |rr, "\nO|ut of me|
|00006010| 6d 6f 72 79 2e 20 43 61 | 6e 6e 6f 74 20 61 6c 6c |mory. Ca|nnot all|
|00006020| 6f 63 61 74 65 20 69 73 | 74 61 63 6b 20 65 6e 74 |ocate is|tack ent|
|00006030| 72 69 65 73 22 29 3b 0a | 20 20 20 20 63 6c 6f 73 |ries");.|    clos|
|00006040| 65 5f 61 6c 6c 28 29 3b | 0a 20 20 20 20 65 78 69 |e_all();|.    exi|
|00006050| 74 28 31 29 3b 0a 20 20 | 20 20 7d 0a 20 20 4e 75 |t(1);.  |  }.  Nu|
|00006060| 6d 62 65 72 5f 6f 66 5f | 69 73 74 61 63 6b 73 2b |mber_of_|istacks+|
|00006070| 2b 3b 0a 20 20 7d 0a 0a | 49 53 54 41 43 4b 20 2a |+;.  }..|ISTACK *|
|00006080| 6f 70 65 6e 5f 69 73 74 | 61 63 6b 28 29 0a 20 20 |open_ist|ack().  |
|00006090| 7b 0a 20 20 49 53 54 41 | 43 4b 20 2a 69 73 74 6b |{.  ISTA|CK *istk|
|000060a0| 3b 0a 0a 20 20 69 66 20 | 28 66 72 65 65 5f 69 73 |;..  if |(free_is|
|000060b0| 74 61 63 6b 20 3d 3d 20 | 4e 55 4c 4c 29 20 0a 20 |tack == |NULL) . |
|000060c0| 20 20 20 63 72 65 61 74 | 65 5f 69 73 74 61 63 6b |   creat|e_istack|
|000060d0| 20 28 29 3b 0a 0a 20 20 | 69 73 74 6b 20 3d 20 66 | ();..  |istk = f|
|000060e0| 72 65 65 5f 69 73 74 61 | 63 6b 3b 0a 20 20 66 72 |ree_ista|ck;.  fr|
|000060f0| 65 65 5f 69 73 74 61 63 | 6b 20 3d 20 69 73 74 6b |ee_istac|k = istk|
|00006100| 2d 3e 6e 65 78 74 3b 0a | 20 20 69 73 74 6b 2d 3e |->next;.|  istk->|
|00006110| 74 6f 70 5f 65 6e 74 72 | 79 20 3d 20 30 3b 0a 0a |top_entr|y = 0;..|
|00006120| 20 20 72 65 74 75 72 6e | 20 28 69 73 74 6b 29 3b |  return| (istk);|
|00006130| 0a 20 20 7d 0a 0a 76 6f | 69 64 20 63 6c 6f 73 65 |.  }..vo|id close|
|00006140| 5f 69 73 74 61 63 6b 20 | 28 69 73 74 6b 29 0a 49 |_istack |(istk).I|
|00006150| 53 54 41 43 4b 20 2a 69 | 73 74 6b 3b 0a 20 20 7b |STACK *i|stk;.  {|
|00006160| 0a 20 20 69 73 74 6b 2d | 3e 6e 65 78 74 20 3d 20 |.  istk-|>next = |
|00006170| 66 72 65 65 5f 69 73 74 | 61 63 6b 3b 0a 20 20 66 |free_ist|ack;.  f|
|00006180| 72 65 65 5f 69 73 74 61 | 63 6b 20 3d 20 69 73 74 |ree_ista|ck = ist|
|00006190| 6b 3b 0a 20 20 7d 0a 0a | 76 6f 69 64 20 69 6e 63 |k;.  }..|void inc|
|000061a0| 73 74 61 63 6b 28 69 73 | 74 6b 29 0a 49 53 54 41 |stack(is|tk).ISTA|
|000061b0| 43 4b 20 2a 69 73 74 6b | 3b 0a 20 20 7b 0a 20 20 |CK *istk|;.  {.  |
|000061c0| 69 66 20 28 2b 2b 69 73 | 74 6b 2d 3e 74 6f 70 5f |if (++is|tk->top_|
|000061d0| 65 6e 74 72 79 20 3e 3d | 20 28 75 6e 73 69 67 6e |entry >=| (unsign|
|000061e0| 65 64 20 69 6e 74 29 4d | 61 78 5f 49 6e 74 65 72 |ed int)M|ax_Inter|
|000061f0| 73 65 63 74 69 6f 6e 73 | 29 0a 20 20 20 20 7b 0a |sections|).    {.|
|00006200| 20 20 20 20 69 73 74 6b | 2d 3e 74 6f 70 5f 65 6e |    istk|->top_en|
|00006210| 74 72 79 2d 2d 3b 0a 20 | 20 20 20 49 73 74 61 63 |try--;. |   Istac|
|00006220| 6b 5f 6f 76 65 72 66 6c | 6f 77 73 2b 2b 3b 0a 20 |k_overfl|ows++;. |
|00006230| 20 20 20 7d 0a 20 20 7d | 0a 0a 2a 20 20 77 68 69 |   }.  }|..*  whi|
|00006240| 63 68 20 79 6f 75 20 61 | 72 65 20 70 65 72 6d 69 |ch you a|re permi|
|00006250| 74 74 65 64 20 74 6f 20 | 75 73 65 20 74 68 69 73 |tted to |use this|
|00006260| 20 66 69 6c 65 2e 20 20 | 54 68 65 20 72 75 6c 65 | file.  |The rule|
|00006270| 73 20 61 72 65 20 69 6e | 20 74 68 65 20 66 69 6c |s are in| the fil|
|00006280| 65 0a 2a 20 20 6e 61 6d | 65 64 20 50 4f 56 4c 45 |e.*  nam|ed POVLE|
|00006290| 47 41 4c 2e 44 4f 43 20 | 77 68 69 63 68 20 73 68 |GAL.DOC |which sh|
|000062a0| 6f 75 6c 64 20 62 65 20 | 64 69 73 74 72 69 62 75 |ould be |distribu|
|000062b0| 74 65 64 20 77 69 74 68 | 20 74 68 69 73 20 66 69 |ted with| this fi|
|000062c0| 6c 65 2e 20 49 66 20 0a | 2a 20 20 50 4f 56 4c 45 |le. If .|*  POVLE|
|000062d0| 47 41 4c 2e 44 4f 43 20 | 69 73 20 6e 6f 74 20 61 |GAL.DOC |is not a|
|000062e0| 76 61 69 6c 61 62 6c 65 | 20 6f 72 20 66 6f 72 20 |vailable| or for |
|000062f0| 6d 6f 72 65 20 69 6e 66 | 6f 20 70 6c 65 61 73 65 |more inf|o please|
|00006300| 20 63 6f 6e 74 61 63 74 | 20 74 68 65 20 50 4f 56 | contact| the POV|
|00006310| 2d 52 61 79 0a 2a 20 20 | 54 65 61 6d 20 43 6f 6f |-Ray.*  |Team Coo|
|00006320| 72 64 69 6e 61 74 6f 72 | 20 62 79 20 6c 65 61 76 |rdinator| by leav|
|00006330| 69 6e 67 20 61 20 6d 65 | 73 73 61 67 65 20 69 6e |ing a me|ssage in|
|00006340| 20 43 6f 6d 70 75 53 65 | 72 76 65 27 73 20 47 72 | CompuSe|rve's Gr|
|00006350| 61 70 68 69 63 73 20 44 | 65 76 65 6c 6f 70 65 72 |aphics D|eveloper|
|00006360| 27 73 0a 2a 20 20 46 6f | 72 75 6d 2e 20 20 54 68 |'s.*  Fo|rum.  Th|
|00006370| 65 20 6c 61 74 65 73 74 | 20 76 65 72 73 69 6f 6e |e latest| version|
|00006380| 20 6f 66 20 50 4f 56 2d | 52 61 79 20 6d 61 79 20 | of POV-|Ray may |
|00006390| 62 65 20 66 6f 75 6e 64 | 20 74 68 65 72 65 20 61 |be found| there a|
|000063a0| 73 20 77 65 6c 6c 2e 0a | 2a 0a 2a 20 54 68 69 73 |s well..|*.* This|
|000063b0| 20 70 72 6f 67 72 61 6d | 20 69 73 20 62 61 73 65 | program| is base|
|000063c0| 64 20 6f 6e 20 74 68 65 | 20 70 6f 70 75 6c 61 72 |d on the| popular|
|000063d0| 20 44 4b 42 20 72 61 79 | 74 72 61 63 65 72 20 76 | DKB ray|tracer v|
|000063e0| 65 72 73 69 6f 6e 20 32 | 2e 31 32 2e 0a 2a 20 44 |ersion 2|.12..* D|
|000063f0| 4b 42 54 72 61 63 65 20 | 77 61 73 20 6f 72 69 67 |KBTrace |was orig|
+--------+-------------------------+-------------------------+--------+--------+