Graphics Plus

home *** CD-ROM | disk | FTP | other *** search
/ Graphics Plus / Graphics Plus.iso / msdos / raytrace / rayshade / doc / guide / running.tex / node6_ct.html < prev next >
LaTeX Document | 1992-02-09 | 2.2 KB
open in:
MacOS 8.1 extracted |
Win98 extracted |
DOS extracted
view JSON data |
view as text

This file was processed as: LaTeX Document (document/latex).

You can browse this item here: node6_ct.html
Confidence	Program	Detection	Match Type	Support
`100%`	dexvert	LaTeX Document `(document/latex)`	magic	Supported
`90%`	dexvert	Hypertext Markup Language File `(text/html)`	magic	Supported
`1%`	dexvert	Text File `(text/txt)`	fallback	Supported
`100%`	file	HTML document text	default (weak)
`99%`	file	LaTeX document text	default
`98%`	file	exported SGML document text	default
`97%`	file	exported SGML document, ASCII text, with CRLF, LF line terminators	default
`80%`	TrID	HyperText Markup Language with DOCTYPE	default
`19%`	TrID	HyperText Markup Language	default
`100%`	checkBytes	Printable ASCII	default
`100%`	perlTextCheck	Likely Text (Perl)	default
`100%`	gt2	HTML (Hyper Text Markup Language) Datei	default
`100%`	detectItEasy	Format: plain text[LF]	default (weak)
`100%`	xdgMime	text/html	default
hex view
+--------+-------------------------+-------------------------+--------+--------+
|00000000| 3c 21 44 4f 43 54 59 50 | 45 20 48 54 4d 4c 20 50 |<!DOCTYP|E HTML P|
|00000010| 55 42 4c 49 43 20 22 2d | 2f 2f 57 33 43 2f 2f 44 |UBLIC "-|//W3C//D|
|00000020| 54 44 20 48 54 4d 4c 20 | 33 2e 32 20 46 69 6e 61 |TD HTML |3.2 Fina|
|00000030| 6c 2f 2f 65 6e 22 3e 0a | 0a 3c 21 2d 2d 43 6f 6e |l//en">.|.<!--Con|
|00000040| 76 65 72 74 65 64 20 77 | 69 74 68 20 4c 61 54 65 |verted w|ith LaTe|
|00000050| 58 32 48 54 4d 4c 20 32 | 30 32 32 20 28 52 65 6c |X2HTML 2|022 (Rel|
|00000060| 65 61 73 65 64 20 4a 61 | 6e 75 61 72 79 20 31 2c |eased Ja|nuary 1,|
|00000070| 20 32 30 32 32 29 20 2d | 2d 3e 0a 3c 48 54 4d 4c | 2022) -|->.<HTML|
|00000080| 20 6c 61 6e 67 3d 22 65 | 6e 22 3e 0a 3c 48 45 41 | lang="e|n">.<HEA|
|00000090| 44 3e 0a 3c 54 49 54 4c | 45 3e 43 6f 6e 74 65 6e |D>.<TITL|E>Conten|
|000000a0| 74 73 20 6f 66 20 54 68 | 65 20 52 61 79 20 54 72 |ts of Th|e Ray Tr|
|000000b0| 65 65 3c 2f 54 49 54 4c | 45 3e 0a 0a 3c 4d 45 54 |ee</TITL|E>..<MET|
|000000c0| 41 20 48 54 54 50 2d 45 | 51 55 49 56 3d 22 43 6f |A HTTP-E|QUIV="Co|
|000000d0| 6e 74 65 6e 74 2d 54 79 | 70 65 22 20 43 4f 4e 54 |ntent-Ty|pe" CONT|
|000000e0| 45 4e 54 3d 22 74 65 78 | 74 2f 68 74 6d 6c 3b 20 |ENT="tex|t/html; |
|000000f0| 63 68 61 72 73 65 74 3d | 75 74 66 2d 38 22 3e 0a |charset=|utf-8">.|
|00000100| 3c 4d 45 54 41 20 4e 41 | 4d 45 3d 22 76 69 65 77 |<META NA|ME="view|
|00000110| 70 6f 72 74 22 20 43 4f | 4e 54 45 4e 54 3d 22 77 |port" CO|NTENT="w|
|00000120| 69 64 74 68 3d 64 65 76 | 69 63 65 2d 77 69 64 74 |idth=dev|ice-widt|
|00000130| 68 2c 20 69 6e 69 74 69 | 61 6c 2d 73 63 61 6c 65 |h, initi|al-scale|
|00000140| 3d 31 2e 30 22 3e 0a 3c | 4d 45 54 41 20 4e 41 4d |=1.0">.<|META NAM|
|00000150| 45 3d 22 47 65 6e 65 72 | 61 74 6f 72 22 20 43 4f |E="Gener|ator" CO|
|00000160| 4e 54 45 4e 54 3d 22 4c | 61 54 65 58 32 48 54 4d |NTENT="L|aTeX2HTM|
|00000170| 4c 20 76 32 30 32 32 22 | 3e 0a 0a 3c 4c 49 4e 4b |L v2022"|>..<LINK|
|00000180| 20 52 45 4c 3d 22 53 54 | 59 4c 45 53 48 45 45 54 | REL="ST|YLESHEET|
|00000190| 22 20 48 52 45 46 3d 22 | 72 75 6e 6e 69 6e 67 2e |" HREF="|running.|
|000001a0| 63 73 73 22 3e 0a 0a 3c | 4c 49 4e 4b 20 52 45 4c |css">..<|LINK REL|
|000001b0| 3d 22 70 72 65 76 69 6f | 75 73 22 20 48 52 45 46 |="previo|us" HREF|
|000001c0| 3d 22 6e 6f 64 65 35 5f | 6d 6e 2e 68 74 6d 6c 22 |="node5_|mn.html"|
|000001d0| 3e 0a 3c 4c 49 4e 4b 20 | 52 45 4c 3d 22 75 70 22 |>.<LINK |REL="up"|
|000001e0| 20 48 52 45 46 3d 22 6e | 6f 64 65 31 5f 6d 6e 2e | HREF="n|ode1_mn.|
|000001f0| 68 74 6d 6c 22 3e 0a 3c | 2f 48 45 41 44 3e 0a 20 |html">.<|/HEAD>. |
|00000200| 0a 3c 42 4f 44 59 20 62 | 67 63 6f 6c 6f 72 3d 22 |.<BODY b|gcolor="|
|00000210| 23 66 66 66 66 66 66 22 | 20 74 65 78 74 3d 22 23 |#ffffff"| text="#|
|00000220| 30 30 30 30 30 30 22 20 | 6c 69 6e 6b 3d 22 23 39 |000000" |link="#9|
|00000230| 39 34 34 45 45 22 20 76 | 6c 69 6e 6b 3d 22 23 30 |944EE" v|link="#0|
|00000240| 30 30 30 66 66 22 20 61 | 6c 69 6e 6b 3d 22 23 30 |000ff" a|link="#0|
|00000250| 30 66 66 30 30 22 3e 0a | 0a 3c 48 31 3e 3c 41 20 |0ff00">.|.<H1><A |
|00000260| 49 44 3d 22 53 45 43 54 | 49 4f 4e 30 30 31 35 30 |ID="SECT|ION00150|
|00000270| 30 30 30 30 30 30 30 30 | 30 30 30 30 30 30 30 22 |00000000|0000000"|
|00000280| 3e 0a 54 68 65 20 52 61 | 79 20 54 72 65 65 3c 2f |>.The Ra|y Tree</|
|00000290| 41 3e 0a 3c 2f 48 31 3e | 0a 0a 3c 50 3e 0a 57 68 |A>.</H1>|..<P>.Wh|
|000002a0| 65 6e 20 72 61 79 20 74 | 72 61 63 69 6e 67 20 61 |en ray t|racing a|
|000002b0| 20 73 63 65 6e 65 2c 20 | 72 65 66 6c 65 63 74 65 | scene, |reflecte|
|000002c0| 64 20 6f 72 20 74 72 61 | 6e 73 6d 69 74 74 65 64 |d or tra|nsmitted|
|000002d0| 20 72 61 79 73 20 6d 61 | 79 20 73 74 72 69 6b 65 | rays ma|y strike|
|000002e0| 0d 0a 6f 74 68 65 72 20 | 72 65 66 6c 65 63 74 69 |..other |reflecti|
|000002f0| 76 65 20 6f 72 20 74 72 | 61 6e 73 70 61 72 65 6e |ve or tr|ansparen|
|00000300| 74 20 6f 62 6a 65 63 74 | 73 2e 20 20 46 75 72 74 |t object|s.  Furt|
|00000310| 68 65 72 20 72 65 66 6c | 65 63 74 65 64 20 6f 72 |her refl|ected or|
|00000320| 0d 0a 74 72 61 6e 73 6d | 69 74 74 65 64 20 72 61 |..transm|itted ra|
|00000330| 79 73 20 77 69 6c 6c 20 | 62 65 20 73 70 61 77 6e |ys will |be spawn|
|00000340| 65 64 2c 20 61 6e 64 20 | 73 6f 20 6f 6e 2e 20 20 |ed, and |so on.  |
|00000350| 54 61 6b 65 6e 20 74 6f | 67 65 74 68 65 72 2c 20 |Taken to|gether, |
|00000360| 73 75 63 68 0d 0a 61 20 | 66 61 6d 69 6c 79 20 6f |such..a |family o|
|00000370| 66 20 72 61 79 73 20 69 | 73 20 74 65 72 6d 65 64 |f rays i|s termed|
|00000380| 20 74 68 65 20 3c 45 4d | 3e 72 61 79 20 74 72 65 | the <EM|>ray tre|
|00000390| 65 3c 2f 45 4d 3e 2e 20 | 20 43 61 72 65 20 6d 75 |e</EM>. | Care mu|
|000003a0| 73 74 20 62 65 20 74 61 | 6b 65 6e 0d 0a 74 6f 20 |st be ta|ken..to |
|000003b0| 63 6f 6e 74 72 6f 6c 20 | 74 68 65 20 64 65 70 74 |control |the dept|
|000003c0| 68 20 6f 66 20 74 68 69 | 73 20 74 72 65 65 3a 20 |h of thi|s tree: |
|000003d0| 20 49 66 20 69 74 20 69 | 73 20 61 6c 6c 6f 77 65 | If it i|s allowe|
|000003e0| 64 20 74 6f 20 67 72 6f | 77 20 74 6f 6f 20 64 65 |d to gro|w too de|
|000003f0| 65 70 6c 79 2c 0d 0a 6f | 6e 65 20 6d 61 79 20 73 |eply,..o|ne may s|
|00000400| 70 65 6e 64 20 61 20 67 | 72 65 61 74 20 64 65 61 |pend a g|reat dea|
|00000410| 6c 20 6f 66 20 74 69 6d | 65 20 63 6f 6d 70 75 74 |l of tim|e comput|
|00000420| 69 6e 67 20 72 61 79 73 | 20 74 68 61 74 20 63 6f |ing rays| that co|
|00000430| 6e 74 72 69 62 75 74 65 | 20 6c 69 74 74 6c 65 0d |ntribute| little.|
|00000440| 0a 74 6f 20 74 68 65 20 | 66 69 6e 61 6c 20 70 69 |.to the |final pi|
|00000450| 63 74 75 72 65 3b 20 69 | 66 20 69 74 20 69 73 20 |cture; i|f it is |
|00000460| 6e 6f 74 20 61 6c 6c 6f | 77 65 64 20 74 6f 20 67 |not allo|wed to g|
|00000470| 72 6f 77 20 66 61 72 20 | 65 6e 6f 75 67 68 2c 20 |row far |enough, |
|00000480| 74 68 69 73 0d 0a 70 72 | 65 6d 61 74 75 72 65 20 |this..pr|emature |
|00000490| 74 72 65 65 20 70 72 75 | 6e 69 6e 67 20 6d 61 79 |tree pru|ning may|
|000004a0| 20 62 65 20 65 76 69 64 | 65 6e 74 20 69 6e 20 74 | be evid|ent in t|
|000004b0| 68 65 20 69 6d 61 67 65 | 2e 0a 0a 3c 50 3e 0a 70 |he image|...<P>.p|
|000004c0| 72 6f 76 69 64 65 73 20 | 74 77 6f 20 63 6f 6d 70 |rovides |two comp|
|000004d0| 6c 65 6d 65 6e 74 61 72 | 79 20 6d 65 74 68 6f 64 |lementar|y method|
|000004e0| 73 20 66 6f 72 20 63 6f | 6e 74 72 6f 6c 6c 69 6e |s for co|ntrollin|
|000004f0| 67 20 74 68 65 20 64 65 | 70 74 68 0d 0a 6f 66 20 |g the de|pth..of |
|00000500| 74 68 65 20 72 61 79 20 | 74 72 65 65 2e 20 20 4f |the ray |tree.  O|
|00000510| 6e 65 20 6d 65 74 68 6f | 64 20 73 65 74 73 20 61 |ne metho|d sets a|
|00000520| 6e 20 61 62 73 6f 6c 75 | 74 65 20 6d 61 78 69 6d |n absolu|te maxim|
|00000530| 75 6d 20 66 6f 72 20 74 | 68 65 20 74 72 65 65 2e |um for t|he tree.|
|00000540| 20 20 54 68 65 0d 0a 6f | 74 68 65 72 20 61 6c 6c |  The..o|ther all|
|00000550| 6f 77 73 20 6f 6e 65 20 | 74 6f 20 61 64 61 70 74 |ows one |to adapt|
|00000560| 69 76 65 6c 79 20 70 72 | 75 6e 65 20 61 20 74 72 |ively pr|une a tr|
|00000570| 65 65 20 61 73 20 69 74 | 20 67 72 6f 77 73 20 73 |ee as it| grows s|
|00000580| 6f 20 74 68 61 74 20 60 | 60 75 6e 69 6d 70 6f 72 |o that `|`unimpor|
|00000590| 74 61 6e 74 27 27 0d 0a | 72 61 79 73 20 61 72 65 |tant''..|rays are|
|000005a0| 20 6e 6f 74 20 73 70 61 | 77 6e 65 64 2e 0a 0a 3c | not spa|wned...<|
|000005b0| 50 3e 0a 3c 42 52 3e 0a | 3c 49 4d 47 0a 20 20 53 |P>.<BR>.|<IMG.  S|
|000005c0| 54 59 4c 45 3d 22 68 65 | 69 67 68 74 3a 20 32 2e |TYLE="he|ight: 2.|
|000005d0| 33 38 65 78 3b 20 76 65 | 72 74 69 63 61 6c 2d 61 |38ex; ve|rtical-a|
|000005e0| 6c 69 67 6e 3a 20 31 37 | 36 2e 34 30 65 78 3b 20 |lign: 17|6.40ex; |
|000005f0| 22 20 53 52 43 3d 22 69 | 6d 67 39 2e 70 6e 67 22 |" SRC="i|mg9.png"|
|00000600| 0a 20 41 4c 54 3d 22 5c | 62 65 67 69 6e 7b 64 65 |. ALT="\|begin{de|
|00000610| 66 6b 65 79 7d 7b 6d 61 | 78 64 65 70 74 68 7d 7b |fkey}{ma|xdepth}{|
|00000620| 7b 5c 65 6d 20 6c 65 76 | 65 6c 7d 7d 0a 44 6f 20 |{\em lev|el}}.Do |
|00000630| 6e 6f 74 20 73 70 61 77 | 6e 20 72 61 79 73 20 64 |not spaw|n rays d|
|00000640| 65 65 70 65 72 20 74 68 | 61 6e 20 74 68 6f 73 65 |eeper th|an those|
|00000650| 20 61 74 20 74 68 65 20 | 67 69 76 65 6e 20 7b 5c | at the |given {\|
|00000660| 65 6d 20 6c 65 76 65 6c | 7d 2e 0a 5c 65 6e 64 7b |em level|}..\end{|
|00000670| 64 65 66 6b 65 79 7d 22 | 3e 0a 3c 42 52 3e 0a 52 |defkey}"|>.<BR>.R|
|00000680| 61 79 73 20 66 72 6f 6d | 20 74 68 65 20 65 79 65 |ays from| the eye|
|00000690| 20 61 72 65 20 6f 66 20 | 64 65 70 74 68 20 7a 65 | are of |depth ze|
|000006a0| 72 6f 2e 20 20 54 68 65 | 20 64 65 66 61 75 6c 74 |ro.  The| default|
|000006b0| 20 76 61 6c 75 65 20 66 | 6f 72 0d 0a 3c 45 4d 3e | value f|or..<EM>|
|000006c0| 6c 65 76 65 6c 3c 2f 45 | 4d 3e 20 69 73 20 31 35 |level</E|M> is 15|
|000006d0| 2e 0d 0a 54 68 69 73 20 | 64 65 70 74 68 20 6d 61 |...This |depth ma|
|000006e0| 79 20 61 6c 73 6f 20 62 | 65 20 73 65 74 20 66 72 |y also b|e set fr|
|000006f0| 6f 6d 20 74 68 65 20 63 | 6f 6d 6d 61 6e 64 20 6c |om the c|ommand l|
|00000700| 69 6e 65 20 74 68 72 6f | 75 67 68 20 74 68 65 20 |ine thro|ugh the |
|00000710| 3c 54 54 3e 2d 44 3c 2f | 54 54 3e 20 6f 70 74 69 |<TT>-D</|TT> opti|
|00000720| 6f 6e 2e 0a 0a 3c 50 3e | 0a 3c 42 52 3e 0a 3c 49 |on...<P>|.<BR>.<I|
|00000730| 4d 47 0a 20 20 53 54 59 | 4c 45 3d 22 68 65 69 67 |MG.  STY|LE="heig|
|00000740| 68 74 3a 20 32 2e 31 30 | 65 78 3b 20 76 65 72 74 |ht: 2.10|ex; vert|
|00000750| 69 63 61 6c 2d 61 6c 69 | 67 6e 3a 20 31 37 36 2e |ical-ali|gn: 176.|
|00000760| 36 38 65 78 3b 20 22 20 | 53 52 43 3d 22 69 6d 67 |68ex; " |SRC="img|
|00000770| 31 30 2e 70 6e 67 22 0a | 20 41 4c 54 3d 22 5c 62 |10.png".| ALT="\b|
|00000780| 65 67 69 6e 7b 64 65 66 | 6b 65 79 7d 7b 63 75 74 |egin{def|key}{cut|
|00000790| 6f 66 66 7d 7b 7b 5c 65 | 6d 20 74 68 72 65 73 68 |off}{{\e|m thresh|
|000007a0| 6f 6c 64 7d 7d 0a 44 6f | 20 6e 6f 74 20 73 70 61 |old}}.Do| not spa|
|000007b0| 77 6e 20 72 61 79 73 20 | 77 68 6f 73 65 20 63 6f |wn rays |whose co|
|000007c0| 6e 74 72 69 62 75 74 69 | 6f 6e 20 74 2e 2e 2e 0a |ntributi|on t....|
|000007d0| 2e 2e 2e 61 73 20 61 20 | 73 69 6e 67 6c 65 20 66 |...as a |single f|
|000007e0| 6c 6f 61 74 69 6e 67 2d | 70 6f 69 6e 74 20 76 61 |loating-|point va|
|000007f0| 6c 75 65 2c 0a 6f 72 20 | 61 73 20 61 20 72 65 64 |lue,.or |as a red|
|00000800| 2d 67 72 65 65 6e 2d 62 | 6c 75 65 20 74 72 69 70 |-green-b|lue trip|
|00000810| 6c 65 2e 0a 5c 65 6e 64 | 7b 64 65 66 6b 65 79 7d |le..\end|{defkey}|
|00000820| 22 3e 0a 3c 42 52 3e 0a | 54 68 65 20 64 65 66 61 |">.<BR>.|The defa|
|00000830| 75 6c 74 20 76 61 6c 75 | 65 20 69 73 20 30 2e 30 |ult valu|e is 0.0|
|00000840| 30 32 2e 20 20 54 68 69 | 73 20 74 68 72 65 73 68 |02.  Thi|s thresh|
|00000850| 6f 6c 64 20 6d 61 79 20 | 61 6c 73 6f 20 62 65 20 |old may |also be |
|00000860| 73 65 74 20 66 72 6f 6d | 0d 0a 74 68 65 20 63 6f |set from|..the co|
|00000870| 6d 6d 61 6e 64 20 6c 69 | 6e 65 20 74 68 72 6f 75 |mmand li|ne throu|
|00000880| 67 68 20 74 68 65 20 3c | 54 54 3e 2d 54 3c 2f 54 |gh the <|TT>-T</T|
|00000890| 54 3e 20 6f 70 74 69 6f | 6e 2e 0d 0a 0a 3c 48 52 |T> optio|n....<HR|
|000008a0| 3e 0a 0a 3c 2f 42 4f 44 | 59 3e 0a 3c 2f 48 54 4d |>..</BOD|Y>.</HTM|
|000008b0| 4c 3e 0a                |                         |L>.     |        |
+--------+-------------------------+-------------------------+--------+--------+