Theodor Kittelsen’s drawings have a special place in the history of Norwegian art and culture. He is perhaps best known for his illustrations of Asbjørnsen and Moe’s folktales, but he also illustrated his own texts.
Drawing Sprites in Android OpenGL efficiently?
I want to do this using OpenGL-ES 2.0 on Android. Since the textures can be varying sizes, I was thinking I would save the vertices along with the textures and pass them to the shaders every draw call using “glVertexAttribPointer”. Is there a better(performance) way of doing this? I would also make use of a model matrix to translate/rotate the sprites. Is this a normal thing to do for 2d rendering?
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asked Feb 25, 2013 at 10:29
Krazy Krazy
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You’ll want to look at SpriteBatch then which basically involves deferring any actual GPU draw calls until all the drawing has been completed and ready to be flushed to the GPU bugger. This is a very common approach to draw 100s or even 1000s of sprites on a screen at once without negative implications on the frame rate. There’s a lot of different ways to implement SpriteBatching so I’ll leave the exact implementation in OpenGL to you, but in a lot of implementations I’ve seen (MonoGame, Direct X Toolkit) the Begin function of the SpriteBatch will take a transform view matrix (which will translate, rotate and scale the sprites). I suggest you look at the implementations I’ve linked to and derive your own. MonoGame has OpenGL components which will probably be of use to you.
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answered Feb 26, 2013 at 0:23
Vaughan Hilts Vaughan Hilts
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Artist/producer
Born 27.04.1857 in Kragerø, death 21.01.1914 in Jeløya, Norge
Although the figures portrayed in Nøkken (The Monster of the Lake), Skogtrollet (The Forest Troll) and Pesta (The Black Death) are over 100 years old, they still resonate as icons within the minds of many Norwegians. But who is the artist who created these legendary characters?
As a young man Theodor Kittelsen wanted to become a painter, but it would be his drawings that brought him the greatest success. Here he found an outlet for his sense of humour and his enthusiasm for stories, fairy tales, the comedic and, not least, the magic of nature. Kittelsen’s pictures of the Ash Lad, trolls, princesses and animals have captured the imaginations of generation after generation. In Troldskab (Magic), a series of mystical images of the natural world illustrating Kittelsen’s own texts, he portrayed nature and natural forces that he himself had experienced at first hand. The boy gazing at the golden palace in the distance, from the series of paintings Soria Moria slott (Soria Moria Palace), has become a symbol of the dream of succeeding in life.
Moods of nature
“It is not the dramatic ‘effects’ of nature that I am concerned about. It is the mystical aspect of it, the calm, the secretive…”Kittelsen, Aftenposten (newspaper), 9 October 1904
Kittelsen’s close connection with his natural surroundings – not only their mystical and secretive aspects, but also their subtle and evocative ones – is reflected in his drawings. The drawings from Lofoten, which he executed while living there, are among his most important works. The same can be said of his lovely, subdued watercolours from Jomfruland, depicting the luminous summer landscape of the outermost skerries by Kragerø. He often used realistic renditions of the landscape as a basis for his works, but incorporated elements of age-old legends to introduce an extra dimension. Again, these bear witness to his love of drawing and ability to combine different techniques. As a young man Kittelsen was not fond of winter, but as he grew older he became increasingly fascinated by the process of rendering snow and snow-covered landscapes. Snow-laden spruce trees containing bullfinches or leaping squirrels are transformed into captivating winter fairy tales.
The plague
The illustrations for Svartedauen (The Black Death) reveal Kittelsen’s great skill in creating a series. Here he combined historical material from the Middle Ages with his own pull towards the dark and melancholy in nature. The pictures, texts and vignettes were based on stories of the rural population’s encounters with folktales about the black plague and death. The landscapes and buildings in the series can also be traced back to various places where the artist himself had lived, from the Sole farm in Eggedal to Sund in Lofoten. The gaunt, crooked figure representing the plague is an unpleasant reminder of the hardships and distress of the past. The combination of pencil with wash, charcoal and wax crayon serves to intensify the atmosphere of the pictures.
