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- Demo/intro making and discussion (2:5030/84) ------------------ DEMO.DESIGN - Msg : 13587 of 13588 From : Andrew Matsovkin 2:5030/687.32 24 Jun 36 07:17:42 To : Alexander Akimov 19 May 00 02:14:12 Subj : textures ------------------------------------------------------------------------------- Hello, Alexander! Tue May 16 2000 23:22, Andrew Aksyonoff to Alexander Akimov: AA>> p p AA>> p p (url )? AA> Hugi (www.hugi.de) - . Surf. Bo ec a pa oya (e ae a o o epeo): ______________________________________________________________________ eepa ecyp 64k eax. (by Ile/Aardbei) Hoa e pooa "jizz /pandora"? Ec xoe ya, a axy ecoo eaa ecyp co 64-x ooay ey, o o ec ac. oac oc a o eaec. eepa ecyp coyc "co". Co o ceo- peea ecypa. ec o yaco a aoo e paepa a ecypa, coco pex aao (R/G/B). (B aex pepax ye paccopea ecypa paepo 256x256). aee aoo aaa oe ec o 0 o 255. Oee co coe po e pae (o peaoo pe, oay, eoxoo a y 3). poecc eepa ec a ecoo ao: eepa, peopaoae (caee), eee eo poe pe. Paoae o cey opao: caaa eep o-o ao coe, ae peopaye (caae) coepoe ooo co acoc o pyoo .. Eceoe o e co oaoc o o "aeoc" ecyp ( oo, o "coca" x ecoo p eo o x yacx ecoo). Teep ey. eepa ~~~~~~~~~ pee ceo ao ao a co a-o ae. Ka? a . Ec ecoo pocx cocoo: Sine plasma (aa e epeoy, ya o a ce co) value = 127 + 63.5*sin( x * k ) + 63.5*sin( y * k ), e k - o poco oe (1, 2, 3 oe pyoe eoe co) x, y - o oopa ae coe/ecype Value eec o 0 o 255. Teep oo ocaec ao o aao aoo-o co: layer[0][(y*256)+x].r = value. Environment map Ty ce ee poe. epe ce cop a coo o yae o epa (128, 128). aee ooopc - e ae oa o epa, e ee ee aee. yc epe aee ye 255, a y pae 0. oyc, coeo poa, ap... Subplasma epe ecoo ex oe (cae a 8-o ce) aoc ya cyaoe aee. aee poco epopye ae ocax oax (.e. cpo ocee epexo o ooo eoo ae pyoy). Hapep: oa: 0 1 2 3 4 5 6 7 8 9 10 aee: 132 . . . . . . . 45 . . B oe 0 pa cyaoe aee 132, oe 8 aee 45. Teep ao a poeyoe ae. Haoee pa ye cooae cao (c x oo oyac ae pe). Oa paooce cao o "Catmull-Rom" ca. Fractalplasma (Perlin noise) o poco eooe eee caa (subplasma aee poco SP). Ee oo peca a ecoo caa, aa co coe ayo ao. Caaa coae SP oopo cyae o y epe 128 cee (.e. ceo x oe co cya ae 4). Hao oe, o acae ae x oe oy oca oo 128. ae oope pey a c ao 64, aca aee 64, a aee... Xopoo, ao a 8 caaax. Teep co x. (Koeo poce 8 SP oe co ee. B o cyae oo eco ca-epo ocooac poc ocyco, oy e oo cooa ay ocyco). pyo coco - o peypcoe eee. e co a 4 ac. ae ay ee a 4 .. aoe eee oa eoo cyaoc. remember those colorcycle plasmas from years ago? They divide the layer in 4 pieces, and each of those in 4 others. And every time you subdivide you add a bit of randomness. Oa e o oopo co oecooc - o y eepa cyaoo ca. Ec xoe o a pa ceepea ecypa ea oaoo (paco), o eoxoo o cyaa y eepa o ee cyae ca acoc o epeaaeoo e ca. poco coco o cooa cpy a xor rol. peopaoae (pa) ~~~~~~~~~~~~~~~~~~~~~~~~~~~ epoe o a opeyec o ea epo. e coco o, o aoy cey pcaaec aee pyoo cea a o e coe (apep oop axoc a 3 cea a 2 eo). Ho oe e ee ca, apep cycc a 2.7 cea cec a 1.1 eo. Teep 4 cea opee ay "oy": (x ,y ), (x+1,y ), (x ,y+1) (x+1,y+1). aee opee ao o co "aoc" ( "ec") cxo x pox ace x cee: 0.7 * 0.1 = 0.07 epo 0.3 * 0.1 = 0.03 opo 0.7 * 0.9 = 0.63 pee, 0.3 * 0.9 = 0.27 eepo. (oe ce o cye o aa eey). e eep r,g,b cocae cea 1 a 0.07. eae oe caoe cex epex caae ae - oyae poa ce. Ecea poea o o, o ce o ye co opo. 16 yoe a 1 ce! Ho ec oya o co oo eoo copa. A ec pe ca MMX, o eo oe ee cpee... Sinedistort aee eye o epec o c eoop ceee. o ceee cec c oo ooeoo cyca. pep: cea 0 cyc ye 0, a o ce ocaec e ee, a 40-o cea aee cyca ye apep 0.55, yoae o a ao-o oe oyae ceee oopoo epe aee. Twirl o e o e oooe. O apyae ecypy opy epa. Boe eo cooo - o poce ec c cyca/ocyca. Mapdistort ec coyec pyo co axoe cee (o co o ye ee a-o pa). ee o-o, ae coye o ee eo-o ee a aee. M poco epe a aa (r/g/b) co yoae a aoe-y co epaa o 0 o 1, coye o a ceee. Oe poco. May c ea ~~~~~~~~~~~~~~~~~~~~~ eee eo oe e oe e oxo. Hecoo pepo. eppoae O cax pocx, o oe pe oex po. aoo ooea ea eae "x = 255 - x". HSV o aoe HSV? o ccea pecae ea. Too ae a RGB oa opeee e pe ooea, oo o e Kpac/ee/C, a To(Hue)/Haceoc(Saturation)/poc(Value). a ccea pecae coo acpa, oepyy e ece coca ea, a eo ocpe eoeo. C oo HSV oo c eoc e eoy cocay, e e p o ecoc. (Hapep: pac oo epeec c o pe, a e ocaec e, a ep ep). Hao oo peca ccey HSV a epeepy oyc, o epepy ocoa oopoo o e pay ceec py. K epy ce oe ao epexo e, a y oyca (ocp) ce epexo ep e. Bo oey epeeac o pyy (e yo py coa "To") eec e o e eec eo poc aceoc. poca cocaa oeae a o a coo e ee. 1 o e, 0 o ep. ao e aee a co o oc oyca. Teep o e e poco epe RGB, epeo HSV, ee ye cocae epeo opao RGB. Sinecolor poco epe epecae e r=sin(r). Oo o yaco, o oa ae oe ae eo. poe pe ~~~~~~~~~~~~~ Ceae coe Ceae 2 co. Ho e 50/50, a coy p, cae 80% o epoo co caae c 20% o opoo (aoe o e oyoc oe 100% :). Coee/Bae/oee poco caae/ae aceoc ea, aoe oppeo opaaae epeoee (Hapep: "240+60=255", "33-80=0"). Blur (Caae) poco ooe caae, o oo cooa apaeoe "cae" ( o cyae ae epyc c eo co oo-o apae). Shade (aeee/ceee) epe eoop co opao ecyp, a aee cop ec aee paec 128 a e e eec, ec aee oe 128 a cee, ee - aee (ec aee 255 o e poc e, ec aee 0 o ep). Emboss (eaa/pee) Ca o cee o e poo yace ea (pae oe cepoo). a ce eo o pocxo? a ce yee eoo pa ey cea. o eaec cee opao: -1 0 1 -1 0 1 -1 0 1 "0" ocepee pecae a ce. aee cop a 8 eax oe yoae aoe a coceoe aee (-1, 0 1). Caae pae 128. Hy o oy y yacey apy. o eep c e ea? Hy oo apep o e ae ecypy (c. pe. y). (Photoshop coye apy 3x3, o oo oy). Pictures B oee cooa ecyppoae logo p. poco oe 2x ey apy (coxpae ee 8 ceo a a, ee ye ee ca) ooe ee a o co, a a pyo eypy poc aoee oye, apep, pac oo. Heoo o o a xpa aooy cao ecyp ee. Kaoy py cac cooece oo-o oep. aee a p ee ecoo a ax oopx xpac apaep oo pa. Bo ec e popaa oopo peaoao ce e ocaoe: ftp://ftp.scene.org/pub/demos/groups/aardbei/atg2.zip

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FAQ - .

design/collection/some content by Frog,
DEMO DESIGN FAQ (C) Realm Of Illusion 1994-2000,
: "DEMO.DESIGN FAQ, http://www.enlight.ru/demo/faq".