01 ka 05
Isingeniso
Kunezinhlobo eziningi zezindlela zokufanisa eMaya, kodwa enye yeziqalo zokuqala zokuqala ziboniswa indlela yokudala i-geometry ngokushintsha ijika nge-pivot.
Ngokuhamba kwesikhathi, kuyinqubo okungenzeka ukuthi ngeke iphele ukusebenzisa okuningi njenge- extrude noma ufaka amathuluzi wokungqimba okweqenqemeni , kodwa yinto ephelele yokwethulwa ngoba ivumela abaqalayo ukuba babone imiphumela ebonakalayo ngokushesha kakhulu.
Ukuguqula ijika kunendlela elula futhi elula yokwenza izinkombe, amapuleti, izitsha, izinsika-nanoma yikuphi i-geometry e-cylindric ephuma endaweni ephakathi. Ukusebenzisa i-curve, i-modeler ingaveza ama-radial alula kakhulu kakhulu ngesikhathi esincane kakhulu.
Kulo lonke lolu tutorial, sizoqhubeka nenqubo yokwenza umcibisholo olula we-champagne ngokuguqula ijika.
02 ka 05
I-Anatomy ye-Curve
Ngaphambi kokuba singene esimweni sokulinganisa, ngifuna nje ukuveza amaphuzu ambalwa okusheshayo mayelana namajika eMaya.
Ama-Vertices okulawula: I- curves yenziwe ngamaphoyinti okuthiwa ama-vertic control (ama-CV). Ngemuva kokuthi ijika lidonsa, isimo salo singaguqulwa ngokukhetha i-CV bese ishukumisela ukuyihambisa eduze kwe-x, y, noma i- axis . Emfanekisweni ngenhla, ama-CV abonakala njengezikwele ezincane ezibomvu. I-vertex yesithathu yokulawula kusukela ngezansi kwekhava lesokunxele okwamanje likhethiwe ekuhumusheni.
I-EP ne-CV Curves : Uma uya ukudweba ijika, uzobona ukuthi unokhetho phakathi kwe-EP noma i-CV amathuluzi wejika. Into engcono kakhulu okumele uyikhumbule nge-EP kanye ne-CV curve ukuthi umphumela wokugcina ufana ncamashi . Umehluko kuphela phakathi kokubili yilokho okuyi-EP, ukulawula ama-vertices okuqondile ngqo kwi-curve uqobo, kanti amaphuzu okulawula ekhoneni le-CV ahlale ehlangothini lwe-convex lomugqa. Sebenzisa noma yikuphi ocabanga ukuthi ukhululekile kakhulu.
I-Curve Degree: Ungabona ukuthi ngiye phambili futhi ngidonsela ama-curve amabili futhi ngababeka eceleni. Lezi zindlovu ezimbili zifana ngokufanayo, ngaphandle kweqiniso lokuthi omunye ubushelelezi kanti enye ihambisana. Ebhokisini lezinketho ze-curves, faka izinga eli-1 (elilinganayo) lezinhlobo ze-angular, ne-3 (cubic) yezintambo ezibushelelezi.
Ukuqondisa: Kubalulekile ukuphawula ukuthi i- NURBS ijika ngama-Maya ineziqondiso ezithile. Qaphela imibuthano emibili ebomvu etholwe esithombeni ngenhla. Ikhefu ngakwesobunxele livela kumzansi, okusho ukuthi ligeleza ukusuka phansi kuze kube phezulu. Ijika lesokudla liguqulwa, futhi ligeleza phezulu kuze kube phansi. Nakuba ukuqondiswa kwe-curve akunandaba uma usebenzisa umsebenzi wokuguquka, kunezinye izenzo (ezifana ne-extrusion) ezithatha ukuqondiswa kwe-akhawunti.
03 ka 05
Ukudweba i-Curve Profile
Kulula ukudala ijika kwelinye lamakhamera we-Maya, ngakho-ke ukushintsha iphaneli lokubuka, ibha yamathuluzi esiteleka. Lokhu kuzokhipha isakhiwo sephaneli seMaya ezine.
Hambisa igundane ukuze igxume kunoma yiliphi iwindi noma ngefasitela langaphambili bese ushaya ibha yesikhala futhi ukuze ukwandise iphaneli.
Ukuze ufinyelele ithuluzi le-CV Curve, iya kuDala -> I- CV Curve Tool , futhi isikhombisi sakho sizophenduka izinwele ezithintekayo. Ukubeka iphuzu lokulawula, chofoza noma yikuphi efasiteleni. Amakhodi e-CV abhebhetheka ngokuzenzakalela, kodwa ama-Maya akakwazi ukukhipha ubushelelezi kuze kube yilapho usubeke ama-vertices amathathu-ijika lizobonakala lilingane uze wenze kanjalo.
Uma ufaka ama-CV, ungawafakela grid ngokubamba x . Lokhu kusebenza ngokumangalisayo lapho ufanisa isimo semidlalo.
Ukudala i-Curve Profile
Ukwakha umtshingo we-champagne, sizosebenzisa ithuluzi lejika le-CV ukudweba ingxenye yesimo. Hamba iphuzu lokuqala kumvelaphi, bese uqhubeka udweba iphrofayela kusuka lapho. Bheka ijika lami eliphelile esithombeni ngenhla, futhi khumbula-ungashintsha isikhundla se-CVs kamuva, ngakho ungawugijimi uma ungawatholi okokuqala okokuqala.
Dlala nxazonke ngethuluzi lejika ukuze uthole ukuma kwephrofayela ojabule ngayo. Uma wonke ama-vertices akho okulawula ekhona, faka ukungena ukwakha ijika.
04 ka 05
Ukuguqula i-Curve
Kuleli phuzu, umsebenzi onzima usuphelile.
Ukuqeda umcibisholo we-champagne, qinisekisa ukuthi usemodemu yokuvula .
Ngamakhethi akhethiwe, iya ezindaweni -> vula futhi ukhethe ibhokisi lokukhetha ukuletha iwindi eliboniswe esithombeni ngenhla.
Kulesi simo, izilungiselelo ezizenzakalelayo zizosebenza kahle, kodwa kukhona okukhethwa kukho okukodwa noma ezimbili okufanele sibukeke:
- I-Axis: Ngokuvamile kunokuba uzobe uhamba ngokuzungeza i-axis Y ezenzakalelayo, kodwa i-x neyatholakala uma ubadinga.
- I-Geometry ye-Output - I-NURBS noma i-Polygons: Isaziso, ungakwazi ukukhipha isakhiwo se-NURBS noma into ye-polygon . Ngoba manje ama-NURBS angahlala ekhethiwe, kodwa uma imodeli yakho izogcina iphelile enjini yegeyimu, kuwumqondo omuhle ukusebenzisa amapoloni.
- Qala & Qedela Qhafaza: Uma ungafuni ijika lakho livule ama-360 degrees agcwele, ungashintsha inani lokuphela lokufa. Ukuguqula ijika nge-degrees angu-90 kungasiza ekudaleni izingxenyana ezizungezile ngokwakhiwa kwezakhiwo.
05 ka 05
Kuphelile!
Ulapha. Ngokusebenzisa ithuluzi lokuguqula i- Maya sisebenzise ukulingisa umcibisholo omncane we-champagne ngaphandle kwesikhala esithile.
Sizoshiya lapha kuze kube manje, kodwa mhlawumbe esikhathini esizayo esiseduze sizokwenza isifundo ngokunikeza ama-caustics!