Kab lus no piav qhia yuav ua li cas los tsim cov nyhuv qaij-ua haujlwm hauv GIMP. Cov nyhuv qaij-ua haujlwm tau dhau los ua neeg nyiam heev nyob rau xyoo tas los no, tej zaum feem ntau yog vim muaj ntau cov duab lim hom apps suav nrog cov nyhuv zoo li no.
Qhov cuam tshuam Tilt-Shift yog dab tsi?
Txawm tias koj tsis tau hnov lub npe qaij-ua haujlwm, koj yuav luag yeej tau pom cov piv txwv ntawm cov duab zoo li no. Feem ntau lawv qhia scenes, feem ntau tua me ntsis los ntawm saum toj no, uas muaj ib tug ntiav band nyob rau hauv tsom, nrog rau tus so ntawm cov duab plooj. Peb lub hlwb txhais cov duab no yog cov duab ntawm cov khoom ua si scenes vim peb tau ua conditioned tias cov duab nrog cov tsom thiab qhov muag plooj yog qhov tseeb cov duab ntawm cov khoom ua si.
Cov nyhuv qaij-ua haujlwm yog muaj npe tom qab tus kws tshaj lij qaij-ua haujlwm lo ntsiab muag tsim los tso cai rau lawv cov neeg siv txav lub hauv ntej ntawm lub lens ntawm nws tus kheej ntawm lub lens. Architectural kws yees duab tuaj yeem siv cov lo ntsiab muag no kom txo tau qhov pom ntawm cov kab ntsug ntawm cov tsev sib txuas thaum lawv tau siab dua. Txawm li cas los xij, vim tias cov lo ntsiab muag no tsuas yog tsom mus rau qhov nqaim ntawm qhov chaw, lawv kuj tau siv los tsim cov duab uas zoo li cov duab ntawm cov khoom ua si scenes.
Yuav Ua Li Cas Tilt-Shift Effect hauv GIMP
Ntawm no yog yuav ua li cas ua rau qaij-ua haujlwm hauv GIMP:
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Qhib koj cov ntaub ntawv hauv GIMP los ntawm kev siv File > Open.
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Vim tias peb tab tom sim tsim cov nyhuv uas zoo li cov khoom ua si scene, es tsis yog daim duab ntawm lub ntiaj teb tiag, peb tuaj yeem ua kom cov xim ci dua thiab tsis tshua muaj ntuj los ntxiv rau tag nrho cov nyhuv.
thawj kauj ruam yog mus rau Colors > Brightness-Contrast thiab tweak ob lub sliders. Tus nqi uas koj kho cov no yuav yog nyob ntawm daim duab uas koj siv, tab sis peb tau nce ob qho tib si Brightness thiab Contrast los ntawm 30. Xaiv OK thaum teem.
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Tom ntej, mus rau Xim > Hue-Saturation thiab txav tus Saturation slider rau txoj cai. Peb nce qhov slider no los ntawm 70 uas feem ntau yuav siab dhau lawm tab sis haum rau peb cov kev xav tau hauv qhov no. Xaiv OK thaum teem.
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Tam sim no nws yog lub sijhawm los theej cov txheej txheem tom qab thiab tom qab ntawd ntxiv qhov muag plooj rau tom qab.
Koj tuaj yeem xaiv qhov Duplicate txheej khawm hauv qab bar ntawm cov khaubncaws sab nraud povtseg lossis mus rau Layer > Txheej Txheej.
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Tam sim no, hauv Layers palette (mus rau Windows > Dockable Dialogs > Layers yog tias nws tsis qhib), xaiv cov txheej txheem qis dua los xaiv nws. Tom ntej no, mus rau Filters > Blur > Gaussian Blur txhawm rau qhib Gaussian Blur dialog. Txheeb xyuas tias cov saw hlau icon tsis tawg yog li cov kev hloov pauv uas koj ua cuam tshuam rau ob qho kev nkag teb chaws - xaiv cov saw hlau kaw yog tias tsim nyog. Tam sim no nce kab rov tav thiab ntsug mus txog 20 thiab xaiv OK
Koj yuav tsis pom qhov pom qhov muag plooj tshwj tsis yog koj nyem eye icon ntawm ib sab Background luam txheej hauv Layers palette kom zais nws. Koj yuav tsum nyem rau ntawm qhov chaw tsis muaj qhov eye icon yog ua kom cov txheej pom dua.
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Nyob rau hauv cov kauj ruam no, peb tuaj yeem ntxiv daim npog ntsej muag rau saum txheej uas yuav tso cai rau qee qhov keeb kwm yav dhau los qhia los ntawm qhov yuav ua rau peb muaj qhov qaij-ua haujlwm.
Right-click on the Background copy layer in the Layers palette thiab xaiv Add Layer Mask los ntawm cov ntawv qhia zaub mov uas qhib. Hauv Add Layer Mask dialog, xaiv White (tag nrho opacity) thiab xaiv Add Koj yuav tam sim no pom daim npog ntsej muag dawb dawb hauv Layers palette.
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Xaiv lub cim kom paub meej tias nws tau xaiv thiab tom qab ntawd mus rau Tools palette ntawm sab laug vaj huam sib luag thiab xaiv qhov Gradient cuab yeej rau qhib lub Blend cuab tam.
The Blend cov kev xaiv tam sim no yuav pom hauv qab Tools palette thiab nyob rau ntawd, xyuas kom meej tias Opacity slider yog teem rau 100, lub Gradient yog FG rau pob tshab thiab Shape yog Linear.
Yog cov xim pem hauv ntej nyob rau hauv qab ntawm Tools palette tsis teem rau dub, nias d tus yuam sij ntawm cov keyboard los teeb cov xim rau lub neej ntawd dub thiab dawb.
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Nrog rau Blend cov cuab yeej tam sim no teeb tsa kom raug, koj yuav tsum kos duab gradient rau saum thiab hauv qab ntawm daim npog ntsej muag uas tso cai rau keeb kwm yav dhau los qhia thaum tawm hauv ib pawg ntawm sab saum toj daim duab pom. Tuav lub Ctrltus yuam sij ntawm koj cov keyboard kom txwv lub kaum sab xis ntawm Blend cuab yeej mus rau 15-degree kauj ruam, xaiv daim duab txog ib lub hlis twg los ntawm sab saum toj thiab tuav sab laug Ctrltus yuam sij cia thaum koj rub daim duab mus rau me ntsis saum toj ib nrab taw tes thiab tso lub pob laug. Koj yuav tsum tau ntxiv lwm qhov gradient zoo sib xws rau hauv qab ntawm daim duab, lub sijhawm no yuav nce mus.
Tam sim no koj yuav tsum muaj qhov tsim nyog qaij-ua haujlwm, txawm li cas los xij, tej zaum koj yuav tau ntxuav cov duab me ntsis yog tias koj muaj cov khoom hauv pem hauv ntej lossis tom qab uas tseem ua kom pom tseeb.
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Cov kauj ruam kawg yog ua kom qhov muag plooj qhov chaw uas tseem nyob hauv kev tsom tab sis yuav tsum tsis txhob ua. Nyob rau hauv daim duab no, phab ntsa ntawm sab xis ntawm daim duab yog heev nyob rau hauv pem hauv ntej, yog li qhov no yuav tsum tau tiag tiag qhov muag plooj.
Xaiv lub Paintbrush tool hauv Tools palette thiab hauv Tool Options palette, xyuas kom meej tias Mode yog teem rau Nom, xaiv ib tus txhuam mos (peb xaiv 2. Hardness 050) thiab teeb qhov loj me raws li qhov tsim nyog rau thaj chaw uas koj yuav mus ua hauj lwm rau. Tsis tas li ntawd, xyuas tias cov xim pem hauv ntej tau teem rau dub.
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Tam sim no xaiv lub Layer Mask icon kom paub meej tias nws tseem ua haujlwm thiab tsuas yog pleev xim rau thaj tsam uas koj xav kom plooj. Thaum koj pleev xim rau ntawm daim npog ntsej muag, txheej sab saud yuav muab zais kom pom cov txheej plooj hauv qab.
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