Saturday, September 10, 2011

Sky & Clouds

When my League instructor Robert Schulz offered this lecture to the class, I remember being struck by the amount of information the students were being given. Reilly's program  went way beyond teaching us how to paint, it helped us understand what we were painting. In retrospect it seems obvious that we should pay some attention to the different types of clouds in our landscape, but until then I hadn't given it much thought.

Cirrus are seen early morning or evening. They come together to form cumulus clouds in the afternoon. Stratus clouds are high in the sky and flatter. Cumulus are heaped up, but keep them light and floating. Cumulonimbus and nimbus are thunderclouds with precipitation.

All clouds have action. They are a mass of floating water vapor moved by the wind. Soften edges, pull wisps out of the cloud to show its loftiness and the action the wind puts upon it. Often the shadow side of a cloud is the same value as the sky behind it, a warm neutral against a blue sky.

Your composition will determine which values of the sky vault will appear in your picture. Thalo blue and green are mentioned here, but ultramarine blue and viridian are mentioned elsewhere and work just as well.

 A gray day sky is flat with little or no vault (change in value).

A moonlit sky has a slight value change to the sky vault.

The Rose Dore Effect.
At the end of the day, dust and pollution rise up into the lower sky and become a red-orange haze of transmitted light. Reilly called this the Rose Dore' Effect after the pigment used to get the effect.  The sky vault was painted first, and let to dry. The clouds were painted wet on dry, and the rose dore was glazed over the horizon part way up the lower portion of the sunset sky, without changing the value.

 © John Ennis 2011
 Next Topic: Trees


Diane Hutchinson said...

I've been a follower of this site for at least a year and only really started reading it today! What a WEALTH of information...Thanks so much for sharing it...

alffla said...

i love this blog. please keep posting!

Gwendolene van der Merwe said...

wow, very interesting. Thank you for posting this :)

kev ferrara said...

Great stuff as usual.

Thank you so much. Really great information.

как пользоваться android said...

All are android market apk good lasses, but whence come the sygic mobile maps android bad wives?

Rani said...

Is this blog still active?

John said...

We need more! Thanks for doing this!

Kathy's Art Blog said...

I am just discovering this blog. It's amazing. Really looking forward to the next post about trees. Really appreciate your generosity. Kudos.

Marco Piunti said...

Please, give us the trees' entry!

Thank you for sharing these notions.

m :)

greenishthing said...

please go on posting more! this is invaluable!!!

greenishthing said...

Plerase add more Reilly documents here, I check this blog every week, please more!

many thanks for your efforts


Karen Roberson @ Split-Site PhD said...

I think that it is a great idea to learn more about what you are painting. It probably gives you a better appreciation when you are painting it. I love all your notes from the class. Thank you for sharing this with us.

greenishthing said...

please post more! this is unique stuff! I check this blog every week!

bumbu pecel bali said...

this is good post.
and you can go here

tanks very much.... :)

Kathy G. said...

I am referring to this blog on a daily basis as I am trying to understand the science of colour and the landscape. It is the best information that I have found and boy have I been looking! Thankyou for being so generous.

Hakkinda Bilgi said...

Thanks for great blog and posts ... :)

toko kain tenun said...

Amazing post, Thank you for presenting a wide variety of information that is very interesting to see in this artikle

tour karimunjawa
and jual furniture
or jepara furniture
and tenun troso
Up tenun sutra

Syaiful wisata said...

very amazing post, I like It, Thank you for presenting a wide variety of information that is very interesting to see in this artikle, good job adnd succes For you

paket karimunjawa januari |
paket karimunjawa februari |
paket karimunjawa maret |
paket karimunjawa april |
paket karimunjawa mei |
paket karimunjawa juni |
paket karimunjawa juli |
paket karimunjawa agustus |
paket karimunjawa september |
paket karimunjawa oktober |
paket karimunjawa november |
paket karimunjawa desember |
paket karimunjawa 2 hari 1 malam |
paket karimunjawa 3 hari 2 malam |
paket karimunjawa 4 hari 3 malam |
Homestay karimunjawa |
homestay karimunjawa |
homestay karimunjawa |
hotel karimunjawa |
paket hotel karimunjawa |
karimunjawa hotel |
paket wisata karimunjawa |

Syaiful wisata said...

I like It, Thank you for presenting a wide variety of information that is very interesting to see in this artikle, good job adnd succes For you

paket honeymoon karimunjawa |
Paket Honeymoon karimunjawa murah |
backpacker karimunjawa |
paket karimunjawa murah |
wisma apung karimunjawa |
jiwaquest resort karimunjawa |
menjangan resort karimunjawa |
nirwana resort karimunjawa |
dewadaru resort karimunjawa |
hotel escape karimunjawa |
Blue Laguna inn karimunjawa |
puri karimun jawa |
karimunjawa inn |
alchy cottage karimunjawa |
paket diving karimunjawa |
paket murah karimunjawa |
paket rombongan karimunjawa |
paket natal dan tahun baru karimunjawa |
paket wisata karimunjawa murah |
paket natal karimunjawa |
paket tahun baru karimunjawa |
paket idul adha karimunjawa |
paket lebaran karimunjawa |
paket idul fitri karimunjawa |

Syaiful wisata said...

article from a very amazing, Good Job, Thank you for presenting a wide variety of information that is very interesting to see in this artikle

paket bulan puasa karimunjawa |
taman nasional karimunjawa |
pulau karimunjawa |
cara ke karimunjawa |
jadwal trip karimunjawa |
hotel di karimunjawa |
penginapan di karimunjawa |
resort karimunjawa |
hotel di jepara |
panorama karimunjawa |
situs bawah air karimunjawa |
homestay karimunjawa |
hoemestay karimunjawa |
paket homestay karimunjawa |
homestay karimunjawa |
homestay karimunjawa |
paket diving karimunjawa |
penduduk karimunjawa |
tracking mangrov karimunjawa |
wisata di karimunjawa |
keindahan pulau karimunjawa |
tips berlibur karimunjawa |
indahnya karimunjawa |
pesona karimunjawa |
pantai karimunjawa |

Syaiful wisata said...

Amazing post, Thank you for presenting a wide variety of information that is very interesting to see in this artikle

place of karimunjawa |
karimunjawa island beauty |
puisi karimunjawa |
pulau gosong karimunjawa |
sunset ungu karimunjawa |
kapal nazi karimunjawa |
keindahan wisata karimunjawa |
pesona laut karimunjawa |
indahnya tanjung gelam karimunjawa |
wisata pulau karimunjawa |
liburan ke karimunjawa |
surga pantai karimunjawa |
hiu karimunjawa |
sunset cantik karimunjawa |
karimunjawa menakjubkan |
snorkling di karimunjawa |
agenda wisata karimunjawa
boking paket karimunjawa
tempat wisata di jepara
pantai karimunjawa
indahnya pantai karimunjawa