This is how it starts. Just a pattern on graph paper. In this case one square equals one inch. The spaces are notated with letters indicating possible color choices on a black and white copy. The colors are worked out on a separate copy. The pattern is colored in to see how the colors work together. Here is where I can really see how I want things to be represented. If I need to custom blend colors, this is when it the formula for the desired colors are worked out.
I often use textured glass to more closely replicate the facets that occur in art glass. This example is on tempered flat glass. I enlarge the black and white pattern and when possible put it directly under the glass to be painted for the most accurate pattern transfer. The lines are then applied to the glass using a product called Cerne Relief. It comes in small toothpaste-type tubes and is squeezed out directly onto the surface to form three-dimensional lines that will harden. These will be the "leading" that holds the colors in place.
Now the Vitrail paint is applied. It is the consistency of motor oil and is poured, applied with a soft brush, or an eyedropper depending on the size of the area and the finish desired. It is a very saturated hue and must be thinned down with medium to get the best show of color. The paint comes in transparent, opaque, glossy, matte, pearle, glitter, and crackle finish. It can also be made to look like mottled glass by painting wet on wet using multiple colors. I am constantly experimenting with the paint to find new effects.
Here is a closeup. The frog is completed with some parts glossy and some glitter. The cattails are also glitter. The lilly pad is a very pale peach in a pearl finish.
Almost done. I like the center of the waterfall clear. However, since this is a shower door,for modesty, I will most likely end up applying a rippled clear glass directly to the surface. This will enhance the illusion of a moving water in the waterfall.
The ripple glass while giving privacy did not really convey the movement of water as I had hoped. I ended up using a very diluted mixture of 10% turquoise and 90% medium then randomly scattered extra fine glitter in Light Blue and Holographic Gold. By making some areas more heavily concentrated with the glitter it gives the illusion of light bouncing off moving water and gives additional privacy.