For this alla prima painting to work the shafts of light had to be placed deftly and in a radiating way – not parallel lines. The path of the light must be smooth and uninterrupted. Its easier said than done.
If the painting is not alla prima, the dry layer of the background can be glazed with a lighter tone to represent the shafts of light. It needs to be brushed in and made smooth as possible. Its OK but does not have the same vivid effect as wet on wet.
Planning is important. Like the last painting, this is a fleeting moment and not a scene you can study and record at your leisure. Which means its mostly from the imagination / memory. Constructed layer by layer, and like a game of chess, what you do early on will have a bearing on what will happen a few moves later.
The video will illustrate the process and seeing it done is far more instructive than a written description. There are a few issues which will not be apparent in the video. I will briefly mention them.
The sky is simple and flat with a few clouds for variety. The cloud on the left was placed as a reservoir of white paint for the shafts of light later on. What’s not used to drag down as light shafts will be left as a distant cloud. Immediately after smearing the paint for the light shafts the trees are painted in. The trees which will intersect the shafts are painted onto the smeared paint and because the paint is wet it will blend with the tree colour, lightening it. The trees behind the shafts are painted above and below, not intersecting the shafts. All this is to create the effect of distance. Some trees are beyond the shafts of light, some are intersecting, and later I place the trees in front.
The nature of the wet paint is used to create the tones needed and it can be done quickly with the result fluid and dynamic. The alternative method of letting each layer dry, then mixing a range of lighter tones to represent the trees in their various states of concealment, is tedious and the result can be stiff.
The most critical factor was the drying time of the paint. Standard oils would have to be left for a day or two between layers, not to dry, but to become tacky. I’m using Alkyd fast drying paint and this painting was completed in under 3 hours. Much of that time is waiting for the paint to partially dry. Its very manageable compared to checking the paint for drying after days, as with standard oils.
You must understand the nature of the paint and how it behaves when manipulated on the canvas. Its craftwork requiring practise and patience. The painting is constructed, based on what you know you can do. There are accidents and calamities every step of the way and you must be able to incorporate these and change course continually.
Here is the video. See you soon.