There is a corel paint application as well as draw, at one time it gave photoshop a good run for it's money, but photoshop became the dominant app out of the two. To be honest most tuts can be translated from app to app once you've delved a little bit into what the applications call different things....

----------

Toolset: Blender, GIMP, Indigo Render, LuxRender, TopMod, Knotplot, Ivy Gen, Plant Studio.