Sunday, 18 March 2012

Exercise - Mixing Greys - anachromatic scale


I did this exercise in acrylics for speed and made a number of scales until I was happy with this.  We are asked to find the neutral gray equidistant between the two extremes and then place this gray next to both the white and the black.

This has the effect of changing the perception of that neutral gray – next to the white it takes on a darker tone, but next to the black it appears lighter than it actually is.  The eye automatically seems to find the greatest contrast between the two tones it is looking at.


Project - Understanding Colour


Looking forward to this part of the course – I really like colour (especially bright colours!) and find colour much more interesting than pattern or mark making. 

Research Point – Colour Theories of Chevreul and how particular artists have used Chevreul’s theories.

There is so much research on colour theory – plenty of it way above my head at present! – but I found a couple of interesting papers on the internet on the subject:


and


Michel-Eugene Chevreul was a French chemist and academic who was appointed a director at the Gobelins Manufactury in Paris (a national textiles factory) in 1824 to develop their dyes.  One major complaint was the quality of the black samples: after comparing these with other samples dyed by different manufacturers, he realised that the problem was not with the black dye itself, but was created when the black was placed next to other colours.

Through experimentation and observation, Chevreul published his research in a book entitled "The Principles of Harmony and Contrast of Colours and their Application to the Arts" (first published in 1839 and translated into English in 1854). This stated that in the case where the eye sees at the same time two contiguous colours, they will appear as dissimilar as possible, both in their optical composition and in the strength of their colour.

A similar process also occurs when comparing lightness - if two colours of grey (light and dark) are placed next to each other, the light grey will appear lighter and the dark grey darker.  The eye automatically enhances the difference between the two to give the greatest possible contrast.

Colour theory was not new (Leonard da Vinci wrote that what we now call complementary colours placed next to each other heighted the colour) and Newton used refracted light to create a rainbow of colours.  However, Chevreul's research took this further and he differentiated between colour contrasts:
- simultaneous contrast (two colours viewed next to each other)
- successive contrast (or negative after-image) and
- mixed contrast (two colours viewed after one another) - this was noted by Chevruel when buyers examined many colours of fabric.

He went on to suggest that colour contrasts could be accurately predicted and stated that if two colours are seen close together, either will shift in hue as if the visual complementary colour of the neighbouring colour was mixed with it (i.e if a dark red and light yellow are seen side by side, the red will shift as if mixed with the complement of the light yellow (dark blue violet) and the yellow will shift as if mixed with the complement of the dark red (light green blue) - therefore the red with appear shifted towards violet and the yellow towards green).  To demonstrate this theory, he developed a model which contained 72 scales of tones - arranged from the lightest to darkest.

Later theorists found problems with his model as it did not distinguish between lightness and chroma in the analysis of colour effects (this was not clarified until later on in the 19th Century - Hermann von Helmholtz and Ogden Rood).

I found an interesting website which allows you to test these theories by placing colours against each other:


and also the effect of colour on a particular painting so you can see exactly how different colours affect mood and intensity:


Raoul Duffy's Jeanne with flowers

Monet's "Impression Sunrise" shows the effect of equiluminance (the sun is same tone as the background – the painting looks very flat and tonally imbalanced in black and white – but in colour, the red sun "moves" giving the painting it's brilliance.  I think this quite clearly demonstrates how, although tonal balance is always very important in a painting, colour can have a very dramatic effect.

This phenomenon also appears in Monet's "Poppies, nr Argenteuil" – the dominant hues are bright red and bright green – the poppies appear to wave slightly in the breeze because of the effect of equiluminance.

Artists

Van Gogh was influenced by Chevreul's emphasis that colour is influenced by the adjacent colours and tones and that opposing colours in the colour wheel (the furthest apart) reinforce each other when painted next to each other.  Although he studied Chevreul's (and Seurat's) work, he then became what he himself described as an arbitrary colourist and sought an emotional/spiritual understanding of the colours he used - he described deep blue as the colour of spiritual rest, and yellow he ascribed to profound religious aspiration. 

Eugene Delacroix used these theories especially on shadows - eg, yellow skin has violet shadows, red fabric has greenish shadows, and suggested that a warm gray surrounded by bright blue would give the impression of flesh tones.

Georges Seurat, of course, is most well known for his studies in pointillism / optical mixing.  This is based on colour mixing "additively" - that is based on the theory that combining colours of light will make a third colour.  However, paint is mixed "subtractively", so that when bright colours combine, they neutralise each other to form a much duller neutral tone (grey, brown or black) which somewhat reduces the effects of optical mixing.  This effect very much depends on the size of the blocks of colour used – large areas of complementaries will produce the effect they were searching for, but very small areas of colour has the opposite effect, i.e. the neutralizing of the colours.

Also, Seurat academically applied harmonic colour principles derived from Chevreul who stated the following relationships were harmonic:

Adjacents - calm feel
Opposites - more dramatic
Split-complementary (colour either side of direct complementary) - more dramatic
Triads (three colours equidistant on the colour wheel), eg, orange, green and violet - again, dramatic

Hockney Exhibition Visit


David Hockney Exhibition – 24 February 2012 (and return visit 14/3)

My notes from the visits along with further research:

Thixendale Trees - series of four composite paintings (8 canvases each) of a stand of trees, fields and background hills painted from memory – loose brushstrokes with spots of colour.  I felt summer and winter had the most impact – winter was my favourite with the bare branches, blue hills and yellow/ochre ploughed field.  The strong blocks of colour here for the landscape set off the trees very well and the very pale blue/grey sky provides the perfect foil to set off the smaller branches and shapes of the individual trees.

Charcoal drawings – Autumn Thixendale – this is a series of four drawings done only a couple of weeks apart in October.  The first (18th) shows trees with plenty of foliage – the artist has used swirling charcoal strokes for the main bulk of the trees and dots and fine lines for the highest branches.  The last (28th) has a completely different feel to it – the trees are much more open with a clearer sense of their structure, and even the foliage underneath is diminished.  You always get a couple of weeks in Autumn when there are some high winds or storms and all the trees seem to go bare almost immediately – this really shows how doing a series of drawings/paintings of the same scene can alter on a daily basis.  Hockney has said that he really noticed the changing seasons when he returned to the UK from California and I think this is what he was depicting here.

Road to York through Sledmere – riot of colour – purple shadows, red houses and walls – enhanced/unreal colours.  Scale and perspective altered – houses in bottom left of painting and telephone box seem to a different scale to rest of painting – varying textures using brushstrokes and dots on the roofs to differentiate.  Really liked this painting, you can tell it’s a British landscape because of the terraced houses and red telephone box, but otherwise the colours are very tropical.  The houses are possibly built with red brick and have red tiled roofs and Hockney has chosen to accentuate these colours, contrasting them with the bright greens of hedges and trees.  The colours give a feeling of heat (unusual in the North!!) as well as the deep, crisp purple shadows falling on the road.

The theme of a winding road or track is explored in most of the paintings in this exhibition – I watched the Hockney programme on BBC2 and he stated that he started exploring this topic whilst working in California and the winding roads he used to drive to his studio.

One of my favourites although not a new work – Salt Mills 1997 – absolutely loved the colour in this: bright yellow-orange mill building dominates the painting with rows of “stretched” and elongated terraced houses with a purple-pink light on the roofs.  Very textured areas used to depict railway lines and almost abstract bridge as if viewed for a different perspective – blocks of colour for bricks, pointillist colour effects in places.  Very strong complementary colours used in this painting – the dominant hues are the orange of the mill buildings and the purple on the houses and parts around the mill.  Complementaries are again used in the centre of the painting – the red train and line against the deep green of the landscaped area in the middle.  The second time I viewed this painting, I had the room to myself (10 o’clock ticket!) and only this time did I notice there is what appears to be a figure in the centre of the painting – just behind the first row of houses – which appears to be wearing a flat cap – self-portrait perhaps?

Midsummer East Yorkshire – 36 watercolour paintings – in depth studies of an area – ordinary streets and fields painted.  Also in same room and same subject matter – oil paintings of Yorkshire in the summer from observation – lots of oranges, yellows and greens with complementary purples used for roads and shadows.  I felt the quality of the paintings here was very variable – many were very sketchy and quite basic, but what created the impact was the layout and the sheer volume of work.  Because they were all closely hung on one wall (watercolours on one, oils on the other) you really had to step back away from the wall to view them.  This, of course, means that you are not looking at any one painting too closely but getting an overall impression of the theme of “summer in Yorkshire” and in this respect this series works.  I don’t think many would stand up as individual paintings but, as a type of sketchbook series as observational works, they do capture the essence of a British rural summer.

Tunnel series x 5 – the same scene of a farm track though trees and fields captures the landscape in the different seasons – I found Late Spring and July really encapsulated the British summer and the lushness and abundance of hedgerows – a riot of greens and yellows (again with purple for shadows).  Again, the artist has concentrated on the colours and feel of the view, rather than the detail of each plant.  I think the “Early July Tunnel”, for me, works best because it is much more closed in that the others – the height of the foliage on each side almost obliterates the wider view, leaving just the blues and greens of high summer.

Woldgate woods – again a series of 7 paintings made up of 6 canvasses each.  I wasn’t particularly impressed with these – they were probably the most basic works – very loosely applied and sketchy.  Also on display were charcoal drawings of the same area – they almost reminded me of Van Gogh drawings – very distinctive mark-making: strong lines and heavy shading, curled lines to depict foliage and eraser used to good effect for trunks and branches.  I found the drawings here much more interesting than the paintings (which was probably a good thing as many people were not looking at the drawings which gave more time to study them!).

Hawthorns series - both charcoal drawings and large-scale paintings.  The largest one in this series (May Blossom on the Roman Road) reminded me very much of impressionist/port-impressionist skies – swirling patterns created by broken colour with clear brushstrokes of bright pink and bright blue.  The sense of depth and scale in this painting is created by a contrasting bright orange path sweeping round into the distance and the diminishing scale of the large sweep of white and cream flowers by the roadside.

All the hedges in the series are abstracted by varying degrees into stylised, simplified forms with dots and strokes of the brush to show blossom and tonal variations.  Some very abstracted forms in these paintings – blossom depicted as large oval forms or even clumped together to make abstract swirls – branches coming out of the tops of bushes look like waving tentacles (or even alien-like!).  Bright greens, creams and yellows used for sunlit scenes with heavy dark blues purples and pinks used for dark tones under trees/bushes and shadows.  The shadows on the roads and paths again abstracted and do not correspond to the object causing the shadow!  Shadow forms reminded me of the cacti you used to see in American Westerns.  Had a bash at copying one these on my ipad (brushes) which was quite good fun and, as the gallery was very busy, lots of people were interested in what I was doing!  Had a very nice lady chat to me about the brushes app – obviously Hockney is one of the artists most prominent in this new field of digital art – so I spent a little time explaining to her how it worked and how easy it was to create colours and textures very quickly, almost like having the biggest colour palette to hand at all times. 


Winter Timber series.  The standout painting here is the 9’ x 20’ “Winter Timber - the dominant element again is colour: it is so vivid: the orange cut logs forming the main sweep up the centre of the painting, leading the eye to the swirling vortex of blue trees and the horizon; shades of purple used for the forest floor, tracks of ‘V’s used to show the working vehicles of the forest and heading down the path in the distance; the pink/purple tree stump; the distant red (bare earth?) field against the green carpet of the floor (which also has complementary red in it) and the cerulean blue stripes of trees.  When you think that the actual colours here at the time of year depicted in the painting would be extremely muted and dull (grey skies, low light levels, brown/grey trees, brown earth) Hockney has really gone to town with his imagination! 

Part of the Winter Timber series was four charcoal drawings of the area which were very sensitively done and much more detailed than the paintings.  Cut Trees – Timber, and Timber Gone (both 2008) are of the same view and it is very interesting to compare how the artist approach the scene on different occasions and how just changing small details can change the whole feel of a drawing.  In the first drawing, the focus is on the cut wood, and the area immediately surrounding it.  Once that focus has gone, the artist then concentrates the detail in other areas of the drawing – the trees/shrubs on the far right are much more detailed, as are the stand of trees to the left – by pulling out the trunks with an eraser, he has changed the focal point from the central foreground (Timber) to the area immediately surrounding the “emptiness” where the timber had been in Timber Gone.

One thing I did find particularly interesting was the videos (not normally a fan of installations!) – a bank of cameras was fixed to the top of a jeep and driven round, focusing on a hedgerow and a track in woods through the seasons.  Although the video is, in effect, a film of one area, the splitting of the viewpoint (by the use of cameras and the intersecting black lines) and the slightly different angles stops you focusing on just one area – it makes you view each area as a different (and complete) view in its own right.  The one which was most effective I felt was the view down the lane in winter with snow on the ground.  I think the lack of colour in this view leads you to focus more on the individual shapes of the trees and branches. 

After viewing the videos, it led me to think a bit more about all the paintings that were composed of varying numbers of canvasses.  I am assuming that Hockney used multiple canvasses for ease of working/transporting, etc, but it seems that doing this has caused him to think about split viewpoints, and so the videos were created (as the videos were done after the paintings).

Arrival of Spring – 51 prints of ipad drawings plus one large scale oil painting.  These were actually designed to fill the space of the room they were to be exhibited in.  The drawings date from January to the end of May 2011 and each one is titled the day on which it was done.  Obviously being computer generated, these have a different, graphic/illustration feel to them but I can see his logic in using the ipad app for this series – especially the winter ones when it’s cold (he stated that some were done sitting in his car).  I know there has been some criticism over his use of the ipad/iphone but, it is just a tool for expression, the same as anything other medium and it is what you make of it. 

One room I didn’t see the first time round (far too busy) was his sketchbooks.  Luckily, when I returned, it was much less crowded so I had a chance to look at leisure although, as with any sketchbook exhibits, you really want to be able to browse through each page.  It was very informative to see his original sketches, and how these had been progressed to the final works and paintings: the original sketch for winter timber takes up a double page of his sketchbook in crayon and charcoal.  The colours he has drawn form the basis of the large painting – purples and browns used for the ground and tree stump and light brown/orange for the cut timber.  These brighter colours were probably used as a “near as” colour because crayons don’t usually have a wide colour range and so you are forced to simplify the colours.  What the artist has then done is to emphasis these basic colours – the purples are more purple, the cut trees are more orange, etc.

Another sketchbook that interested me was the Blossom Sketchbook.  “Blossom, May 25th 2009: the artist has basically sketched an entire hedgerow in ink, watercolour and charcoal, but made it an exercise in mark-making – each tree is totally different to the next and he has obviously used all his tools – pens, brushes, inks, fingers – to create this line of trees.  In another sketch (which I quickly copied into my notebook – below) shows the inspiration for a number of works – the tunnel has been emphasized, and you can see where he has highlighted the different basic shapes for some blossom plants – these basic shapes, forms and patterns were repeated, and abstracted further, in the whole series of blossom paintings.


Overall I really enjoyed this exhibition – I think the exuberance, colour and sheer volume of works on a theme makes up for some of the downsides of these works:  I felt some works were repetitive and too similar to give any meaningful contrast or message.  As I said previously, a lot of other works were very sketchily done and, if being shown on their own, would not have stood out.  However, be massing the works as he has done, you see the overall view rather than the detail of each work.  I also appreciated his sketchbooks and charcoal drawings much more than many of the paintings – they are more detailed and have a lot more atmosphere than some of the paintings – perhaps he felt he had to make some of the paintings purely to fill the space provided?  But, everyone coming out of the exhibition seemed happy – the bright, dynamic colours used seemed to lift spirits (perhaps what was intended in an English winter).

Sunday, 12 February 2012

Assignment one continued

Using acrylics, I did quick colour sketches (in acrylic) on top of both the above grounds. 



Although the yellow did provide a very warm ground, I felt it was too bright for this subject, and would have to be toned down considerably to be used successfully – the bright yellow just dominated too much.

The second colour sketch on the raw umber/purple ground I felt was more successful in terms of providing a warm, indoor background colour to my painting although, again, the colour was a little strong.

I decided to work along the lines of the redder tones but to lighten it for my final painting.   I began mixing oils and testing them on a sheet of paper, and eventually decided upon a ground of crimson alizarin, raw sienna and cobalt violet which was heavily diluted with thinners and then applied to an A2 sheet of canvas paper with a rag to blend the colour in. 

I then drew the basic lines of the composition in light charcoal to avoid it showing through to the final painting.

In order to allow the background to show through to the final painting I used mainly transparent paint, using turps to thin.  This also had the benefit of drying quickly!

I used a light ochre wash to mark out the basic shapes and angles of the cupboards and then worked up from there, trying not to be too hung up on all the detail in the painting.  For the myriad books, I used muted colours and, in most cases, a single stroke with a flat brush.  I then used a cut up credit card as an implement to give the impression the writing on the spines.  The other objects on the shelves (ornaments, etc) I tried to complete with the minimum of brush strokes.  For the shadows, I mainly used dilute mixes of greys and browns (burnt umber and ultramarine mixed), again, to preserve the underneath layers of colour. 

I completed the painting in four sessions; the image below is after the second session – I worked from the top down to avoid smudging those areas already painted and, as mentioned previously, used fairly dilute transparent paint to help the speed of drying (photo taken in lamp light so more yellow than the actual). 

The chair was quite straightforward to do – I painted a base layer of sap green all over the chair and then used viridian, cadmium yellow and French ultramarine for the leather.  I did use a little white mixed with the viridian, but didn’t like the shade this created (too “pastelly”) so then used the cad yellow to lighten, which I think reflects the actual colour much better.  I began using black to darken the green but, again, found this too dull, so mainly used ultramarine (with just a hint of black) for the dark tones.   Painting the chair only took just over an hour as I tried not to show every detail, just getting the basics in. 

I then used a credit card to apply the colours to the floor – white, burnt umber and yellow ochre mixed loosely and then spread over to give the impression of floorboards.

The image below shows where I was after three sessions – only things left now to complete are:

-       final shadows on the cupboard
-       detail on the cupboard doors
-       stereo on the second shelf up
-       chair legs
-       shadow from the chair
-       chrome fire surround
-       yellow lamp on fireplace

Tonal Studies on Dark Ground


I completed two tonal studies on a dark ground – both on black backgrounds (acrylic ground for speed).

The first was the same still life grouping I used for the tonal study on a white ground as I wanted to directly compare the effects of using the same colours for the same scene on different backgrounds.

The main difference in this painting was that I had to use opaque paint in order to cover the black.  Also, as it was a black background, I painted directly onto the ground without drawing any outlines first.  This painting was completed much more quickly than the still life on a white ground as I deliberately tried to paint more freely - the outlines are not as sharp and the lightest tones are applied loosely with a large round brush simply dragged down.

The second study I completed was a monochromatic study of a glass candlestick (in acrylic for speed of drying) on a black background.  For this study, I set the candlestick on top of my sketchbook (which has black covers) and placed a piece of black mountboard behind the candlestick to obliterate all colour from the scene.  This concentrated the light (desk spotlight) onto and through the candlestick.  The main difficulty I found with this painting was that, as I did it in a couple of sessions, when I sat back down to paint, I found it difficult to get exactly the same angle with my stool – I think next time I do something complicated like this, I will mark tape on the floor to show the exact position!

This sort of object would be ideal for a very detailed still life – this painting probably took me about 1.5 hours and there were so many areas I simplified which could be explored further.  As I have said previously in this section, I particularly like the detailed still life work of contemporary artists such as James Gillick so I would like to explore this further when I have had more practice / experience in acrylic and oils.


Otherwise, this was fairly straightforward to do and, I think, shows what can be achieved with just one colour, and how many shades of black and white there actually are.  One thing I did notice when I had painted the candlestick was that even on a black background, the candlestick cast a darker shadow.  I therefore lightened the foreground slightly with a very dilute wash in order to show this shadow.  

One of the main benefits of working on a black background is that it is very easy to correct mistakes – just black out the offending area and start again!  I found it quite difficult here to render the complete tonal range of the light in the candlestick – I found it difficult to differentiate between the brighter light areas and the few areas of very strong highlight – even with a few layers of white paint, some areas just weren’t bright enough.  I think I will have another go at this again later in the course to see if I have improved on my observational skills at all!

I think painting a simple still life on a very dark or black background is an especially effective way of concentrating on the detail (or conversely the simplicity) of an object in a powerful way.

We are asked to assess how well each study has succeeded in modelling light and rendering tonal values, any technical problems we encounter and the efforts to resolve them:

I think the most successful in modelling light has to be the candlestick; it probably should be as that is really the whole point of painting glass – to explore and portray light through a transparent object.  I have never attempted a complicated glass object before, but really enjoyed painting this.  I don’t think I would have had the patience to do it in oils but, because the acrylics dried quickly and could be painted over the erase any mistakes, I just kept going until I found the lines I liked!  It was also very useful as a tonal exercise – by only using varying dilutions of white, it allowed me to practice building up layers to achieve the tones I wanted. 

The study on the white ground also, I feel, reflects the tonal variations very well – I think it is easier to compare / mix paint on a white palette and then apply it to a white ground – you know exactly what the colour/tone will be.  Having had a background, so far, mainly in drawing and watercolours I still find it easier to work from light to dark, building up the layers to achieve the tones I want, and I found this easier to do on the white ground.   I prefer this painting to the ones on darker grounds, in this case, because of the brilliance of the colour here (even though I know this is meant to be a tonal exercise!).  Using varying dilutions of transparent paint (the dark blue) has allowed me to explore the full range of tones whilst keeping the vibrancy of the colour used and allowing the white ground to shine through.

However, I think that the still life on the darker ground has more atmosphere – you can clearly feel that it is dark outside, the colours (because of the inclusion of white to make the paint opaque) are matt and more subdued.  Also, because I deliberately painted this more quickly and loosely, I find I actually prefer the wine bottle in this painting – the quick application of the white paint with a large brush for the labels and highlights appeals to me – it is not so fussy as the one of the white ground.

On the technical side, I am still getting used to painting in oils – the main issue, of course, is speed of drying, and there are probably a few smudge marks where I forgot the paint was wet!  I also need to buy myself some smaller brushes – it was very difficult to get the fine lines on the glass and round the bottom of the jug – especially when using “neat” white paint straight from the tube – I did get a few blobs – not an issue in this painting (actually worked quite well) but probably more necessary for a really detailed painting.

Getting an even application of paint was another issue – again, not so much of a problem here as these are simply studies but, for future painting, I think it will be necessary to plan ahead further if you are aware that you will want a really smooth finished (probably more than one coat of paint necessary).