Muab xaum kos duab: kev kawm

2024 Tus sau: Leah Sherlock | [email protected]. Kawg hloov kho: 2023-12-17 05:37

Yog tias koj txiav txim siab los ua tus tswv ntawm cov txheej txheem kos duab cwj mem, txawm tias koj yog ib tus neeg laus lossis menyuam yaus, koj yuav tsum pib los ntawm kev piav qhia txog tej yam yooj yim thiab kawm cov cai yooj yim rau kev ua haujlwm nrog cov khoom siv. Qhov tseem ceeb tshaj plaws yog ua kom zoo ib yam, ua raws txhua kauj ruam hauv lem. Thiab ua siab ntev thiab kam kawm.

Tseem xaum

Yuav kom paub ntau yam kev kos duab cwj mem, koj yuav tsum paub seb cov khoom siv twg siv. Txhua tus cwj mem muaj lub hauv paus (ntoo lossis yas rau lub tshuab ua haujlwm) thiab cov hlau lead, uas tuaj yeem ua graphite, tab sis tsis tas li ntawd.

Cov cwj mem zoo ib yam, uas yog hu ua yooj yim, tuaj hauv qhov sib txawv: tawv yog cim nrog tsab ntawv Askiv H, mos B. Tus lej tom ntej ntawm tsab ntawv qhia txog qib ntawm qhov ntsuas no, piv txwv li, 5B yog ib qho zoo heev. soft lead.

Xov xim xim feem ntau siv. Nws yog qhov nthuav kom ua haujlwm nrog cov xaum xim dej ua ib qho ntxiv rau tib cov xim lossis cov khoom siv ywj pheej.

Kev yooj yim siv hauv daim ntawv xaum, lwm yam kev kos duabKhoom siv: charcoal, chalk, sanguine, thiab lwm yam.

Yam koj xav tau ntxiv rau xaum

Koj tuaj yeem siv ntau hom kev kos duab nrog tus cwj mem yooj yim. Raws li qhov kev xaiv xaiv, daim ntawv thiab lwm yam khoom muaj feem xyuam raug yuav. Yog tias koj yuav ua cov kab kos zoo, daim ntawv yuav tsum tuab thiab du, thiab cov xaum yuav tsum yog tawv lossis nruab nrab. Kev ua yuam kev raug kho nrog lub mos lwj.

Yog tias koj kos duab peb-seem nrog chiaroscuro kis tau tus mob siv hatching, cov xaum yuav tsum tau sharpened, thiab zoo dua tsis yog nrog ib tug sharpener, tab sis nrog ib tug riam, kom cov dawb ib feem ntawm lub stylus protrudes 1-1.5 cm. los ntawm lub hauv paus.

Txhawm rau ua haujlwm los ntawm shading graphite, koj yuav xav tau ib daim ntawv mos, ntaub lossis paj rwb ncoo. Rau qhov kev xaiv ua haujlwm no, daim ntawv nrog qhov tsis sib xws yog qhov tsim nyog, piv txwv li, txawm tias cov xim dej thiab cov xaum muag muag. Tshaj graphite yog ib qho yooj yim tshem tawm nrog ib qho tshwj xeeb softerer, zoo ib yam li plasticine, los yog qhob cij crumb. Raws li koj tau pom, nws yog ib qho tseem ceeb uas yuav tau txiav txim siab ua ntej uas koj yuav ua txoj haujlwm txhawm rau npaj cov ntaub ntawv kom raug.

Basic of mem hluav txheej txheem

Muaj ntau txoj hauv kev los ua kom tiav daim duab:

• ntawm kev nco lossis los ntawm kev xav;
• ntawm xwm (ib yam khoom tiag yog nyob rau ntawm koj xub ntiag);
• los ntawm daim duab lossis qauv (cov qauv luam tawm).

Nyob rau hauv ib qho ntawm txoj kev no, kev ua haujlwm dav dav yuav ua raws li hauv qab no:

1. Xaiv qhov loj ntawm daim ntawv thiab nws qhov chaw nyob(ntsug lossis kab rov tav).
2. Siv qhov piv txwv qhov loj me ntawm cov khoom.
3. Kaw cov qauv ntawm cov duab loj.
4. Paint me me.
5. Xa cov ntim khoom thiab chiaroscuro. Cov cheeb tsam lightest (highlights) yog qhov zoo tshaj plaws sab laug dawb, thiab cov tsaus nti yuav tsum tau ua kawg.

Yog tias cov txheej txheem kos duab kos duab kos duab kos duab kos duab los yog shading tag nrho daim ntawv, ua tib zoo ua kom tsis txhob overwrite qhov ua tiav ntawm daim duab nrog koj txhais tes. Muab ib daim ntawv hauv qab koj txhais caj npab los yog muab cov duab kos rau ntawm lub easel thiab sim tso siab rau daim duab tsis yog tag nrho ntawm tes, tab sis tsuas yog nrog koj tus ntiv tes xwb.

Yuav ua li cas kos duab kos duab

Qhov kev ua haujlwm no yog siv los ua ib txoj hauv kev ywj pheej lossis ua ntej daim ntawv thov ntawm cov ntaub ntawv ntawm cov khoom rau kev kawm tom ntej ntawm chiaroscuro lossis pleev xim nrog cov xim.

Cov txheej txheem kos duab xaum yooj yim tshaj plaws rau cov pib tshiab yog kos duab los ntawm cov qauv hla kab lossis cov hlwb.

Ua haujlwm mus zoo li no:

1. Ntawm daim duab lossis duab koj nyiam thiab kos rau ntawm nws lossis hauv zaj duab xis kom tsis txhob lwj qhov chaw, ib daim phiaj uas muaj cov hlwb. Qhov me me, qhov tseeb thiab yooj yim dua nws yuav hloov cov duab.
2. Ntawm daim ntawv npaj, kos tib daim phiaj nrog tib lub xov tooj. Yog tias daim duab raug xa mus rau tib qhov teev, ces qhov loj ntawm cov squares yog coj tib yam. Txhawm rau nthuav cov qauv, tsuas yog ntsuas lub cell loj.
3. Tam sim cov contours ntawm cov khoom thaum lawv hla cov hlwb ntawm daim phiaj superimposed ntawm tus qauv thiab kos zoo ib yam ntawm koj daim ntawv dawb paug.

Nws tseem yooj yim dua los taug qab cov qauv ntawm cov duab los ntawm iav uas muaj lub teeb ci nyob tom qab, tab sis qhov no, koj daim ntawv thiab cov qauv hauv paus yuav tsum nyias nyias thiab translucent.

Yog tias koj yuav kos tus kws tshaj lij, tsis txhob siv cov kev xaiv saum toj no, tab sis ua haujlwm zoo li no:

1. Kim ciam teb ntawm tag nrho cov khoom nyob hauv daim ntawv (sab laug, sab xis, saum thiab hauv qab).
2. Tsim qhov sib npaug ntawm cov khoom los ntawm qhov muag lossis los ntawm kev ntsuas tsim nyog, piv txwv li, nrog mem hluav.
3. Kaw cov ntsiab lus.

Yog tias daim duab tau tsim los ua ib qho contour rau kev ua hauj lwm nrog cov xim, shading los yog hatching, ua rau nws tsuas yog nyias nyias. Yog hais tias qhov kev ua haujlwm yuav yog linear, nws yog feem ntau tsim nyog hais txog cov khoom foreground nrog ib tug cwj mem softer los yog kab dav.

Yuav ua li cas ntxiv ntim

Ntau tus neeg pib nrog kos duab ntsej muag thaum lawv txiav txim siab ua tus cwj mem kos duab. Lub portrait, qhov tseeb, yog ib qho nyuaj tshaj plaws. Yog tias koj txiav txim siab tsom rau nws, thov nco ntsoov tias txhua qhov nthuav dav yog daim ntawv peb sab, thiab tsis yog lub tiaj tus, uas zoo li hauv daim duab lossis duab. Qhov ntswg, qhov muag, daim di ncauj - tag nrho cov muaj lawv tus kheej ntxoov ntxoo thiab dub thiab dawb nthuav dav. Ib yam mus rau lwm yam khoom.

Muaj ob txoj hauv kev hloov ntim:

• khaw;
• shading.

Hauv thawj rooj plaub, cov hlab ntsha tawg yog superimposed raws li cov duab (vertically ntawm ib tug ncaj nto, arcuately ntawm ib tug complex kheej kheej). Txhawm rau nthuav tawm cov txiaj ntsig ntawm cov khoom siv ntom ntom, cov hlab ntsha yuav tsum tau siv ze rau ib leeg kom lub ntsej muag tsis tau "nyom" lossis "plaub hau". Rau cov pib tshiab, nws yog qhov nyuaj rau kev ua kom raug hatching, yog li nws yog qhov zoo dua los siv txoj kev thib ob. Shading muaj feem xyuam rau lub suab nrov, ua raws li los ntawm rubbing graphite ntawm daim ntawv nyob rau hauv cov duab ntawm ib yam khoom los yog ib feem ntawm nws. Kev hloov xim dub thiab dawb yog mos, thiab cov duab yog qhov tseeb dua, txawm tias cov kws tshaj lij feem ntau tsis siv txoj kev no.

Kev kos duab cwj mem dej

hom cwj mem no yog qhov nthuav heev rau cov pib tshiab thiab cov uas twb muaj kev paub dhau los hauv daim teb no. Cov cwj mem xim dej yog siv ntau txoj hauv kev:

• Raws li cov khoom siv kos duab ywj pheej.
• Kom ua kom paub meej ntawm kev kos duab dej.
• Kom kos thiab tom qab ntawd plooj ib feem ntawm daim duab.

Nws tsim nyog nco ntsoov tias kev nthuav dav yuav tsum tau ua tom qab ua tiav, kom dej tsis poob ntawm cov ntsiab lus. Thiab yog tias koj yuav plam ob yam khoom uas nyob ib sab ntawm cov xim sib txawv, koj yuav tsum xub plooj ob daim duab thiab tsuas yog tom qab ntawd - ciam teb ntawm kev sib cuag ntawm cov duab.

Raws li koj tuaj yeem pom, cov txuj ci kos duabcwj mem yog varied li cov khoom nws tus kheej. Yog tias koj yog tus pib, ua thawj txoj haujlwm los ntawm kev luam cov qauv ntawm kab sib chaws. Thaum koj sim koj txhais tes ntawm kab kos, txav mus rau shading. Kev yug me nyuam los ntawm lub neej yog qhov nyuaj tshaj plaws.