by Michael Poitras
A STUDY OF LIGHT Through Acrylic
I have often pondered the lack of depth in my paintings. At first, I used darker and lighter acrylics to give contrast, then began incorporating impasto techniques to give physical depth, as well as depth through color.
Even though I was often satisfied with the final result, something about the pieces would tell me I was thinking through the wrong medium. After some reflection, and through some insightful comments, I realized what I wanted to manipulate was not the paint on the canvas, but the reaction between the acrylics I was using and light.

I began by researching the process I would need to use; the best materials to use; and the best practices and standards to follow. I worked with an LLM (ChatGPT) to adjust recipes based on ambient environmental factors, desired outcomes and the refractive values I wished to maximize in each piece. Through a back-and-forth trial and error process, with no exact measures or laboratory tools, I am able to push the theoretical limits of how light can react with acrylic.
Above is a color template of my third work in this series through different stages of cure, angles, and lighting as well as a negative edit, taken to demonstrate the interaction of color- as per Josef Albers -with the qualities of layering and maximizing interactive values. [Josef Albers was a German-born American artist and educator, considered one of the most influential 20th-century art teachers in the United States. He is known for his work on colour theory. Ed.]

My final goal for this project is not stated as an image or scene but as a compilation of refraction, reflection, pigment suspension and uniformity.
I’ll leave you with a final thought: all the pictures below are the same pigment. Which is most saturated?

[ The process creates highly reflective surfaces, so light and fixtures are clearly seen as white.]
In response to: I’ll leave you with a final thought: all the pictures below are the same pigment. Which is most saturated?
So the last presentation, (made up of five sections or individual “pictures”) is painted with the same colour, varying only according to the amount of water used to dilute the medium, a rusty red acrylic paint. Right away, I think the one in the upper right corner is the most saturated because it seems the brightest. However, it is bordered by darker sections, so I may be influenced by the contrast. The section immediately below it is dark at the top and then that darker pigment streaks across a much lighter pigment. That underlying pigment could be as light as the pigment in the upper right hand section—maybe lighter. Besides, those streaks must have been very wet to run down the painting as they did. They must have been super-saturated. So if water is the determining factor, I suppose the lower right hand picture is the most saturated.
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How informative! Thank you, Michael. I really liked the same colour work. Is the most saturated colour the darkest?
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