Blue Pencil Sketchpad
Blue Pencil Sketchpad - a plug-in for Maya,brings 2D drawing to the 3D viewport. It is now available for Maya 2011 sp1, Maya 2012 and 2013. Both windows and Mac version is available. Linux version is under beta testing, which will be soon available.
Blue Pencil is used in planning, annotation, animation, creating thumbnails, rough blocking and arc tracking.It is also used in Model layout,topology planning and as a shot review tool. It provided pressure-sensitive wacom support for line thickness, opacity for brushes, eraser and eyedropper tools. It has Maya native support and the drawing is stored within the Maya scene file itself.In terms of animation, the keyframes are integrated within Maya's timeline and all operations on the animation keys can be performed.