{"id":53103,"date":"2019-11-24T00:00:00","date_gmt":"2019-11-23T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/dlya-teh-kto-rabotaet-v-houdini-o-kursah-nature-of-vex-i-bites-of-python"},"modified":"2020-02-18T14:00:58","modified_gmt":"2020-02-18T11:00:58","slug":"dlya-teh-kto-rabotaet-v-houdini-o-kursah-nature-of-vex-i-bites-of-python","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/dlya-teh-kto-rabotaet-v-houdini-o-kursah-nature-of-vex-i-bites-of-python","title":{"rendered":"Pro ty, kte\u0159\u00ed pracuj\u00ed v Houdini. O kurzech Nature of Vex a Bites of Python","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pod z\u00e1lo\u017ekou najdete recenzi odborn\u00edk\u016f z Houdini Team krasnodarsk\u00e9ho studia Plarium o video kurzech. Povaha Vexu<\/a><\/noindex> a Kousky Pythonu<\/a><\/noindex> od Mix Training, zam\u011b\u0159en\u00fdch na pr\u00e1ci s jazyky Python a Vex v grafick\u00e9m programu Houdini. <\/p>\n

Tak\u00e9 v t\u00e9to p\u0159\u00edsp\u011bvku kluci sd\u00edlej\u00ed v\u00fdb\u011br materi\u00e1l\u016f, kter\u00e9 budou u\u017eite\u010dn\u00e9 v\u0161em nezaj\u00edmav\u00fdm. <\/p>\n

\"Pro<\/a><\/noindex><\/p>\n

Trochu \u00favodu<\/h3>\n

\nJazyk Vex d\u011bs\u00ed za\u010d\u00ednaj\u00edc\u00ed u\u017eivatele Houdini. Do zna\u010dn\u00e9 m\u00edry kv\u016fli n\u011bmu vznikl stereotyp, \u017ee v Houdini je nutn\u00e9 programovat. Ve skute\u010dnosti v Houdini lze<\/i> programovat, a to pr\u00e1v\u011b usnad\u0148uje a zrychluje mnoho proces\u016f, nikoli je komplikuje. Nap\u0159\u00edklad to pom\u00e1h\u00e1 vyhnout se takov\u00fdm hrozn\u00fdm nastaven\u00edm: <\/p>\n

\"Pro
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\nJazyk Vex byl vytvo\u0159en pro psan\u00ed shader\u016f v renderu Mantra (vstavan\u00fd renderovac\u00ed program Houdini), ale velmi rychle se dostal za hranice p\u016fvodn\u00edho pou\u017eit\u00ed d\u00edky sv\u00e9 flexibilit\u011b, jednoduchosti a rychlosti. N\u00e1zev jazyka poch\u00e1z\u00ed ze zkratky Vector EXpressions, ale s jeho pomoc\u00ed lze manipulovat s r\u016fzn\u00fdmi typy dat. Tak\u017ee Vex se v\u011bt\u0161inou pou\u017e\u00edv\u00e1 pro r\u016fzn\u00e9 typy manipulac\u00ed s prvky geometrie (body, polymery), stejn\u011b jako pro procedur\u00e1ln\u00ed vytv\u00e1\u0159en\u00ed geometrie.<\/p>\n

Jazyk Vex je pom\u011brn\u011b nen\u00e1ro\u010dn\u00fd na syntaxi a form\u00e1tov\u00e1n\u00ed k\u00f3du, m\u00e1 nezvykle n\u00edzk\u00fd pr\u00e1h vstupu. \u010casto sta\u010d\u00ed p\u00e1r \u0159\u00e1dk\u016f, abyste dos\u00e1hli po\u017eadovan\u00e9ho v\u00fdsledku. Mezi jeho v\u00fdhody pat\u0159\u00ed tak\u00e9 v\u00edcetrh a v d\u016fsledku toho dobr\u00e1 rychlost. Programov\u00e1n\u00ed na Vexu je nutn\u00e9 jak pro \u0159e\u0161en\u00ed z\u00e1kladn\u00edch \u00faloh, tak pro slo\u017eit\u00e9 a komplikovan\u00e9 v\u00fdpo\u010dty, a s t\u00edmto jazykem si s t\u00edm nel\u00e9pe porad\u00edte. S jeho pomoc\u00ed lze d\u011blat spoustu \u00fa\u017easn\u00fdch v\u011bc\u00ed v procedur\u00e1ln\u00edm modelov\u00e1n\u00ed, animaci a simulac\u00edch.<\/p>\n

Samoz\u0159ejm\u011b n\u00e1m l\u00edb\u00ed, kdy\u017e si n\u011bkdo mysl\u00ed, \u017ee jsme takov\u00ed v\u0161ichni program\u00e1to\u0159i, ale ve skute\u010dnosti jsme zvykl\u00ed na funk\u010dnost a pohodl\u00ed (i kdy\u017e mnoz\u00ed, kte\u0159\u00ed pracuj\u00ed v Houdini poprv\u00e9, mohou m\u00edt pocit, \u017ee pohodl\u00ed je jen sp\u00e1t na h\u0159eb\u00edc\u00edch). Pokud by n\u011bjak\u00fd n\u00e1stroj ned\u011blal n\u00e1\u0161 \u017eivot jednodu\u0161\u0161\u00ed, nepou\u017e\u00edvali bychom ho. Proto nen\u00ed t\u0159eba vn\u00edmat mo\u017enost programov\u00e1n\u00ed jako n\u011bco, co br\u00e1n\u00ed za\u010d\u00edt se u\u010dit Houdini. Vex je jen dal\u0161\u00edm (i kdy\u017e velmi dobr\u00fdm) n\u00e1strojem mezi mnoha dal\u0161\u00edmi.<\/p>\n

Python, kter\u00fd je mnohem v\u00edce zn\u00e1m\u00fd v \u0161irok\u00fdch kruz\u00edch, nepot\u0159ebuje \u017e\u00e1dn\u00e9 p\u0159edstaven\u00ed ani podrobn\u00e9 popisy. Pov\u011bd\u00edme si, k \u010demu ho pot\u0159ebujeme. V kontextu Houdini se Python pou\u017e\u00edv\u00e1 k ovl\u00e1d\u00e1n\u00ed samotn\u00e9ho programu (tvorba uzl\u016f v projektu, operace s files, automatizace opakovan\u00fdch \u00fakon\u016f, reprodukce slo\u017eit\u00fdch kombinac\u00ed akc\u00ed atd.). Tak\u00e9 pot\u0159ebujeme programov\u00e1n\u00ed v Pythonu k vytv\u00e1\u0159en\u00ed hezk\u00fdch rozhran\u00ed v n\u00e1stroj\u00edch a psan\u00ed u\u017eite\u010dn\u00fdch p\u0159\u00edkaz\u016f, kter\u00e9 ovl\u00e1daj\u00ed assety stisknut\u00edm tla\u010d\u00edtka. Kdyby v Houdini assetu existovalo tla\u010d\u00edtko \u201eud\u011blat to hezk\u00e9\u201c, bylo by naps\u00e1no v Pythonu. Krom\u011b toho se ob\u010das pou\u017e\u00edv\u00e1 k manipulaci s geometri\u00ed (jako jazyk Vex), ale je t\u0159eba si uv\u011bdomit, \u017ee Python je m\u00e9n\u011b intuitivn\u00ed pro nastaven\u00ed za t\u00edmto \u00fa\u010delem a \u010dasto tuto pr\u00e1ci zvl\u00e1d\u00e1 pomaleji ne\u017e Vex. <\/p>\n

V\u00edce o kurzech<\/h3>\n

\nV\u00fdvoj\u00e1\u0159 Houdini \u2014 spole\u010dnost Side Effects Software \u2014 vyd\u00e1v\u00e1 tolik aktualizac\u00ed a poskytuje tolik mo\u017enost\u00ed pro u\u017eivatele, \u017ee ofici\u00e1ln\u00ed dokumentace a ofici\u00e1ln\u00ed vzd\u011bl\u00e1vac\u00ed kurzy prost\u011b nest\u00edhaj\u00ed aktualizace. Proto shroma\u017e\u010fujeme informace z r\u016fzn\u00fdch zdroj\u016f (placen\u00fdch, bezplatn\u00fdch, ofici\u00e1ln\u00edch a ne p\u0159\u00edli\u0161), abychom co nejl\u00e9pe ovl\u00e1dli tyto flexibiln\u00ed a siln\u00e9 n\u00e1stroje \u2014 programovac\u00ed jazyky Vex a Python (a celkov\u011b Houdini). Na\u0161e volba padla na kurzy od Mix Training, proto\u017ee m\u011bly \u0161ir\u0161\u00ed pokryt\u00ed materi\u00e1lu o Pythonu a Vex v Houdini.<\/p>\n

Autor kurz\u016f m\u00e1 kan\u00e1l na YouTube<\/a><\/noindex> (skv\u011bl\u00fd zdroj pro ty, kte\u0159\u00ed cht\u011bj\u00ed za\u010d\u00edt s u\u010den\u00edm Houdini), odli\u0161uje se neform\u00e1ln\u00edm uvoln\u011bn\u00fdm p\u0159\u00edstupem a velk\u00fdm mno\u017estv\u00edm t\u00e9mat, od motion designu po hern\u00ed v\u00fdvoj. Krom\u011b kan\u00e1lu m\u00e1 tak\u00e9 svou vlastn\u00ed gar\u00e1\u017eovou death-metalovou skupinu. Rozhodli jsme se, \u017ee autorovi stoj\u00ed za to d\u016fv\u011b\u0159ovat, a zakoupili jsme Povaha Vexu<\/a><\/noindex> a Kousky Pythonu<\/a><\/noindex>, po 8 hodin\u00e1ch ka\u017ed\u00fd kurz (lze sledovat rychlost\u00ed 1,5). <\/p>\n

V\u00fdhody<\/h4>\n

<\/p>\n