Modellare in cinema per Stampa

A Quick Tutorial Preparing Cinema 4D Files for 3D printing

A Quick Tutorial Preparing Cinema 4D Files for Shapeways

Cinema 4D is a modeling, animation and rendering package developed by German based company Maxon. It is capable of procedural and polygonal sub-divisional modeling, animating, lighting, texturing and rendering. Cinema 4D was first released in 1993 for the Amiga. It has been used for architectural and engineering visualizations as well as in games and feature films such as  and check out their show reel of (very) commercial work.

A quick tutorial

  1. Set Cinema 4D Preferences to use Millimeters
  2. Create geometry without using Boolean (seems like Booleans never work once translated to VRML but they may work with STL)
  3. For the example above I created a, Objects>Text Spline Primitive of the word ‘Shapeways’
  4. I then made an Objects>Nurbs>Extrude Nurbs
  5. In the Object window on the right side of the screen you then drag the Text Spline onto the Extrude Nurbs icon to make the spline into a 3D object
  6. I then made a cube with Objects>Primitive>Cube then Functions>Make Editable then scaled to fit behind the text
  7. Make your geometry a single object, the Objects>Modeling>Connect Object
  8. Drag the elements you want to connect into Connect Object icon using the Object window to the right of the screen.
  9. Keep polygon count less than 100,000 and it must be less than 500,000
  10. Since version 11, if you have Advanced Renderer you can check Render>Cineman>Select non-Manifold edges
  11. Export at VRML 2 with the scale set to 1000

This brings the models in as centimeters, i.e. 100 mm = 10 cm and in Cinema 4D the object is scaled at a reasonable size so it’s easy to work with.

Modeling in Cinema 4d for Shapeways

Step 7. Objects>Modeling>Connect Object

Modeling in Cinema 4d for Shapeways

Step 8. Elements connected together

Unfortunately I was working with the Demo Version which would not allow me to export the files, nor does it have any help or instructions (Not so handy for evaluation purposes) so if anyone has more experience with Cinema 4D they would like to share please contact me duann(at)shapeways.com and I will be more than happy to incorporate your experience into a more advanced tutorial.

Cinema 4D also has really good 3D Painting tools with Projection Painting for distortion-free painting across UV seams or even multiple objects in a scene. CINEMA 4D includes three automatic UV unwrapping algorithms, including the new Optimal Cubic Mapping system.  Again I was limited by the demo version but here is a quick before and after of me painting a 3D object with no help/tutorials but just exploring the software.

Modeling in Cinema 4d for Shapeways
before

Modeling in Cinema 4d for Shapeways
after

Ok, so my experiments are a little crude but you can see the potential if you are about to enter theShapeways Full Color 3D Print Student Contest this tool looks like it allows an amazing level of intuitive control.

The scaling component of the tutorial was provided by Bryan Leister, an artist whose work ranges from illustration, installation and film.  In a recent blog post on his site he was generous enough to share a quick tip on scaling in Cinema 4D for Shapeways.

His work has been commissioned for the covers of many national and international magazines, including Time, BusinessWeek, Forbes, Der Spiegel and the Atlantic Monthly. He has won over 100 awards from competitions such as Communication Arts, the Art Directors Club of Washington DC, the Illustrators Club of Washington DC, AIGA, Graphis, PRINT and a gold and silver medal from the Society of Illustrators in NYC.

Leister currently works from his studio in Denver, Colorado and is an Assistant Professor at the University of Colorado Denver where he teaches Digital Design and Transmedia. He received a BFA from Virginia Commonwealth University and an MFA in Art and Visual Technology from George Mason University.

Modeling in Cinema 4d for Shapeways

 

Tutorial by Duann
Annunci

tutorial da vedere e da provare!

comic shading tutorial by ~cavalars on deviantART

 

oggi un vecchio tutorial.comic shading tutorial by ~cavalars on deviantART

comic shading tutorial by ~cavalars on deviantART.

Tutorial Snapseed Crea in pochi secondi foto fuori dal comune con il tuo iphone!

SNAPSEED è una fantastica applicazione, senza ombra di dubbio tra tutte quelle che ho provato la migliore nel suo genere,molto professionale e intuitiva.

L’app della famosa Niksoftware conosciuta per numerose plugin per photoshop e software come Color Efex Pro™,si è superata con questo software che è stato eletto App dell’anno ed era Gratis su app store fino a pochi giorni fa, un occasione irripetibile, da non perdere.

Ora vediamo un tutorial veloce veloce per capire come intervenire su uno scatto fatto dal vostro dispositivo e che apparentemente lascia a desiderare. Per prima cosa apriamo Snapseed e in alto a sinistra usiamo il tasto “apri” e selezioniamo importa dalla libreria.

Sconsiglio di utilizzare il primo tool che regola automaticamente l’immagine.

Il primo intervento sulla foto è quella di aggiungere punti di controllo e lavorare direttamente sui punti più interessanti per evidenziare colori,contrasto e luminosita andate quindi su SELECTIVE ADJUST.

Questo tool ci permette di creare con 2 dita una circonferenza sfumata del raggio d’azione del nostro punto di controllo. facendo slide in alto o in basso si seleziona su quale valore intervenire Luminosità/Contrasto/Saturazione.

Il secondo passo da fare è TUNE  IMAGE, che ci offre 5 altri valori generali da modificare, luminosita,contrasto,atmosfera,saturazione e bilanciamento del bianco.

aggiustate la luminostià generale senza esagerare e date maggiore contrasto alla foto per risaltare i neri, saturate un po’ senza esagerare e regolate il bianco come più vi piace.

se occorre ci sono i tool STRAIGHTEN e CROP che rispettivamente intervengono su raddrizzamento e ritaglio della foto.

Passate ora a DETAILS che vi consente di aumentare la nitidezza e di accentuare la struttura della foto dandogli cosi un effetto finto HDR che è tanto in voga su Instagram.

Usate con cautela questi strumenti poichè rovinano drasticamente la qualità della foto, consiglio di utilizzare la lente per controllare fino a che punto potete spingerti.

Nel mio caso sono già soddisfatto cosi, e ritengo la foto sistemata, se invece volete divertirvi potete aggiungere anche filtri DRAMA e GRUNGE, inserire cornici e altri effetti molto utili.

Degno di nota è il tool CENTER FOCUS che permette di sfocare il background se state lavorando su una foto di un soggetto, si puo vignettare oscurando gli angoli o schiarendoli.

Anche lo strumento del TILT SHIFT è molto gradevole è ben regolabile, ma in questo caso volevo mantenere tutta la foto nitida.

Abbiamo finito, come premesso ci abbiamo messo pochi minuti,ora potete condividere la vostra foto e fare invidia a tutti gli amici.

Se il Tutorial vi è piaciuto,nella sua estrema semplicità, lasciate un commento così mi invogliate a farne degli altri…;-)

Vendere Foto – Guida Pratica 1 | faberfoto

Sto da un bel po’ di tempo considerando di provare a vendere qualcosa sul microstock…

ho provato a realizzare elementi grafici, e adesso ancora sto lavorando assiduamente su elementi e illustrazioni da vendere.

Putroppo farsi accettare i file è molto complesso, e per ora non sono ancora riuscito a farmi accettare qualcosa sebbene ci ho lavorato molto.

Come sto facendo io ora, consiglio vivamente di leggere queste indicazioni a chi voglia cimentarsi nel vendere proprie foto e/o illustrazioni….

è un mercato da non sottovalutare, i guadagni se ci si dedica possono essere soddisfacenti e portare ad un buon arrotondamento mensile..

ma non è cosi semplice come sembra…bisogna sudarseli!

ecco come fare:

Vendere Foto | faberfoto.

Vendere Foto – Guida Pratica 1 | faberfoto.

Digital Camera World insegna a fotografare le gocce…

Questo non potevo non re-bloggarlo!

Great photo ideas for more creative water drop photography

Although it’s unlikely that Cartier-Bresson had water drop photography in mind when he talked about the decisive moment, his words ring true when trying to capture the split-second moment a water drop hits the surface below it.

There are several high-tech and costly techniques you can use to get consistent and repeatable water drop shots, such as using electronically activated valves to produce accurately timed drops, and movement triggers that will fire your flash, but it’s surprising just what you can achieve using much simpler techniques and kit that costs just a few pounds.

First, think about how you will create the drops themselves. There are a number of ways to do this, including creating a tiny hole in a suspended plastic bag or using an eyedropper. The most important thing is to ensure that the drops fall in the same place each time, and that the frequency is reasonably predictable. We used a syringe and a small piece of tubing attached to a stand.

You’ll also need a container for the drops to fall into. Any dish or tray will do, but the depth will affect the shape of the droplet, and if you want to capture the reflection of the splash it needs to be large enough to avoid including the edge in your shot.

You can also try changing the viscosity and surface tension of the water. A small amount of washing-up liquid or rinse-aid will lower the surface tension, while adding glucose or glycerine liquid will produce a thicker solution.

It’s easy to get a little hooked on water drop photography, so once you’ve got the basic set-up right be prepared to spend hours pursuing the perfect shot. Here are five techniques you can use to capture very different water-drop images.

5 photo ideas for creative water drop photography

Improve your water drop photography: change your viewpoint

Change your viewpoint
Positioning the camera almost level with the surface of the liquid allows you to capture more of the drop’s reflection for an arty look.

Improve your water drop photography technique: before the splash

Before the splash
You don’t have to capture the splash to create stunning images. Capturing the water droplets mid-flight can also result in beautiful images.

Improve your water drop photography: add some color

Inject some colour
Adding a food dye to the liquid is an easy way to add striking colour. You can also try adding different colours to the drop and static liquids.

Improve your water drop photography: create multiple water drops

Create multiple drops
Once you’ve mastered single drops you can try to capture images of the collision between two drops, with amazing results.

Improve your water drop photography: try using milk

Try milk instead
Due to the very different viscosity and characteristics of the liquid, using milk instead of water will produce softer shapes.

A simple water drop photography set-up

And finally, for those wanting quick results, here is our simple guide to capturing water drops in action. You don’t need costly kit to get impressive results:

A simple water drop photography technique: step 1

Step 1: Create the drops
We used a syringe and some plastic tubing attached to a simple clamp-stand to produce our drops. It’s important that the drop falls in the same place each time, and a small 1ml syringe allowed us to control the droplets accurately.

A simple water drop photography technique: step 2

Step 2: Think about lighting
Placing a piece of frosted glass behind the water, then lighting it with the off-camera flash, proved to be the easiest way to light our drops. The flash was fired using a radio trigger, and was set to 1/32 power manually.

A simple water drop photography technique: step 3

Step 3: Camera settings
With the camera on a tripod we used manual focus and exposure. Some test drops were used to set the focus by placing a ruler in the position where the droplets fell, then carefully pre-focusing on this point.

READ MORE

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Tutorial su come fotografare oggetti metallici

Ecco un eccezionale metodo per fare dei bellissimi still life.

Diy Gary fong lightsphere per 2 euro

Ciao quest’oggi scrivo un altro suggerimento su come modificare e rendere più interessante la luce del vostro speedlight.

Tutti conoscono il famosissimo GaryFong lightsphere, bene questo che ho realizzato io è un simile con meno pretese ma molto economico.

Cosa occorre sono:

-1 confezione di mozzarella esselunga

-1 elastico per capelli

-1 coperchio di cartone riflettente (che potete trovare nei recipienti della Cuki)

il processo di realizzazione è moooolto semplice.

Prendete la mozzarella e la mangiate tutta 🙂 tenete però la scatola che la conteneva.

Lavata e asciugata prendete il vostro speedlight e tracciate sul fondo del contenitore con un pennarello la parte da tagliare.

Incidete con il taglierino e verificate che il vostro flash entri agevolmente rimanendo pero incastrato.

realizzate poi 4 buchi nella parte alta come da foto.

infilate l’elastico in modo da permettere al cartone di incastrarsi sopra e fate un nodo.

Inserite il cartoncino ritagliato con la forma del diffusore e buon divertimento!

Se tutto è stato fatto correttamente dovreste avere una bella luce diffusa adatta per i ritratti, eccone un esempio.

Ciao e alla prossima.

REblog: perfectly safe guide to sensor cleaning

Sensor cleaning: a quick and easy guide

Sensor cleaning can be quite terrifying for a photographer to try on his or her own. Considering how much you paid for it, delving deep into your digital camera’s inner sanctum is the last thing most photographers want to do. Luckily, as we’ll show you below, there are safe methods of sensor cleaning, which are also quick and easy to accomplish.

First, why do we need a sensor cleaning tutorial like this? Dust and dirt can be your digital camera’s downfall. The interchangeable lens system makes it impossible to stop foreign particles entering your camera, and it doesn’t take long for them to stick to the sensor.

Most of the time you won’t notice them, but when you’re shooting blue skies or white studio backdrops with a narrow aperture, dark flecks will become all too visible (download our cheat sheet on when to use a wide or small aperture).

Back in the days of film there was no such problem – you quite literally started each exposure with a clean canvas. However, with digital cameras, a spot of dust on the sensor will blight every shot until it’s removed.

It’s only a matter of time until your digital camera’s sensor will need to be cleaned manually. The more you change lenses, the more you zoom and the dustier the places you go, the quicker this moment will arrive.

To clean one of the most delicate parts of your camera, you do need to exercise caution. However, anyone with steady hands can do it.

There are lots of specialist tools and solutions available for cleaning sensors, but they can be split into two camps – wet or dry. You should think of sensor cleaning as a two-stage process: use a dry system first, then move on to the wet process if necessary.

For both tasks, you’ll need to use a special setting on the camera so that the delicate shutter and mirror mechanisms stay out of the way. This means you can reach the sensor and clean to your heart’s content. Here’s how to do it…

Sensor cleaning made easy

Before You Start

Sensor cleaning - what to do before you start

Before you start the sensor cleaning process, shoot a piece of white paper before you start, to see how dirty the sensor is. Shoot in Aperture Priority (A) mode at f/22; you can use the pop-up flash.

Take a similar shot after you’ve finished your sensor cleaning, comparing the images and seeing the improvement. It’s possible to zoom in and review these shots on the camera’s LCD, but a computer is better.

Safe sensor cleaning - step 1

01 Dry clean
To reach the sensor you need to get the mirror and shutter out of the way. On recent D-SLRs, go to Setup, then ‘Lock mirror up for cleaning’. This option will be greyed out unless the batteries are fully charged. Press OK, then OK again. Press the shutter release.

Safe sensor cleaning - step 2

02 Use a light
You need good light to see the sensor – a head torch is ideal, but a desk lamp can be used instead. Remove the lens and use a hurricane blower to blast dust from the sensor. Be careful not to touch the sensor or other internal components with the blower tip.

Safe sensor cleaning - step 3

03 Add the solution
Use a specialist cleaner designed for the size of your camera, and read the instructions. Pre-impregnated swabs are good when you’re travelling, but a dry swab with a separate cleaning solution tends to give a more effective clean. Don’t use too much liquid.

Safe sensor cleaning - step 4

04 Sweep up
Drag the swab slowly and smoothly from the left of the sensor to the right. Use a single movement, and don’t rub or scratch at the sensor. Turn the swab 90 degrees and drag the clean side from right to left. Throw this swab away. Turn the camera off to reset the mirror.

Top tips: more sensor cleaning ideas

Sensor cleaning tips: vibration cleaning system

01 Shake away
If your camera has it, try using the built-in vibration cleaning system to clear some dust. Do this before you start a manual clean.

Sensor cleaning tips: charge your battery

02 Charge up
Charge your battery before cleaning the sensor. Full power will be needed to keep the shutter open and mirror raised.

Sensor cleaning tips: use a hurricane blower

03 Blast off
Keep your hurricane blower in a plastic bag when it’s not in use, so that it doesn’t suck up dust as you carry it.

Sensor cleaning tips: try different brushes

04 Know the options
Dry cleaning alternatives to a blower include special brushes such as the Arctic Butterfly, or sticky pads like Dust-Aid.

Sensor cleaning tips: wipe down your camera

05 Wipe down
Carry a microfibre lens cloth to clean the outside of the camera. This can reduce the amount of dust getting to the sensor.

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