PDA

View Full Version : Controlling Tonal Values


jennifervs
07-31-2008, 10:55 AM
There have been some questions about how to address and adjust tonal values when painting with Interactive. The following information is from the Interactive Users' Guide. You can download the entire guide from Chroma's website at: http://www.chromaonline.com/chroma/products/atelier_interactive/using_interactive/beginners_classes/ai_users_guide


The lighter the colour tint; ie the more titanium there is in the mixture, the more noticeable the tone change will be, but it can be controlled as follows:-

• Adding water or medium exaggerates the change; always judge colour mixes by dabbing undiluted paint to the canvas, then add water if needed and disregard the colour you see while it is wet.




• As the paint begins to dry and goes into the tacky stage, if the tone drops it can be seen and more white can be added before the paint dries.

• If the colour is what you wanted, it is always more white which is needed to correct the tone.


• With practice colours can be matched perfectly wet-to-dry, so that for example, wet adjustments can be made to smooth areas such as skies in landscapes which blend seamlessly when they dry.

• When there is brush gesture or texture which can’t be repeated it is best to paint slightly higher in tone in the first place, then darken later with a wash if needed.

JennH
08-01-2008, 08:16 AM
great, thanks!

Lust for life
02-18-2009, 12:31 AM
Why does titanium shift darker than other pigments? Because its the lightest?

What about your mixing white with MICA in it?
Does the MICA help at all, or does the mixing white equally shift darker as the normal titanium white?

jennifervs
02-20-2009, 01:31 PM
Why does titanium shift darker than other pigments? Because its the lightest?

What about your mixing white with MICA in it?
Does the MICA help at all, or does the mixing white equally shift darker as the normal titanium white?

Good questions! Acrylics always will look a bit different from wet to dry simply because wet paint is wet...and dry paint is dry! But another reason why mixtures with titanium shift when dry is because the acrylic emaulsion is milky white when wet, but dries clear. You'll notice this shift more in mixtures that have white in them.

Interactive's Tinting White (Pearl Titanium) is more translucent with its careful balance of titanium and mica pearl. It lifts any colour it is mixed with, and is used for scumbling and other translucent over-painting effects. When transparent colours are used in tints with Tinting White, some very unusual transluscent, light-infused colours result. I find it to be warmer than Titanium White, and prefer to use Tinting White in later stages of my paintings and in glazes.

On Chroma's website, there's more information on Interactive's color range, tinting and toning - visit http://www.chromaonline.com/chroma/products/atelier_interactive/colour_range/colour_groups/tinting_and_toning