Monday, March 25, 2024

Hsin-Yao Tseng painting workshop 2024


I am so happy to announce that Master artist Hsin-Yao Tseng will come to Austin again and teach a painting workshop in early December 2024. This workshop is quite unique. Hsin-Yao will introduce various kinds of mark making techniques. He will use reference photos of landscape scenes, but concentrate on creating expressive and energetic designs. Hsin-Yao is a very successful artist and wonderful teacher. I hope you can take advantage of this opportunity to bring your art to the next level. Please check: for information and sign up.

Wednesday, March 20, 2024

Albert's trees


I am hosting an oil painting workshop for a Master artist Albert Handell in Austin, TX. Albert has done a wonderful demo today. I was amazed by his palette knife technique and his impressive palette of exotic colors. Besides helping Albert and all workshop attending artists with their logistical needs, I got chance to paint a little as well. This is what I did today. I always thought painting trees is not my a cup of tea, but I liked what I have learned. 

Wednesday, March 13, 2024



I took Robert Moor's class at Scottsdale Artists' School. I have learned a lot. Mark making is so important to make a painting impressive and expressive. I have not spent enough time to develop my mark making skills. Currently, I am still concentrating on color studies, but soon I will have more fun like painting this one.

Saturday, March 2, 2024

Color Relationship from Light to Shadow


I took a photo of an orange lit by a single light source, then measured 10 color samples from light to shadow using the "Color Analyzer App" we developed. The three numbers on each color sample are its hue, chroma, and value. On the color wheel, we can see: (1) in the light area 1 to 5, the hue shifted from yellow to red orange. This hue shift is often referred as the "prismatic color shift". (2) in the shadow are 6 to 10, the hue does not change. On the "value vs. chroma" diagram, we can see the variation of chroma and value is strongly corelated by following two straight lines. These two linear relations of chroma and value governs the color integrity of a 3D solid object. We may refer it as the "saturation constancy" rule. If you violated this rule when you paint, you will have muddy, chalky, or garish color problems. Most advanced artists know the effects intuitively, but I want to express the rule with an unambiguous scientific statement. You may have heard the saying: "rules are made to be broken", but this one won't.