Plastic vs Graintouch

In contrast to most other modeling tools, Plastic does not use polygons to define the shape of an object. Instead, you build up a volumetric representation by simply combining primitives with add and subtract operations. The same tools used for modeling can also be used to apply color to the model in one continuous workflow. And, since all of these actions in Plastic are non-destructive, you can easily change aspects of your scene at any point without affecting unrelated work. When you are done, objects can be exported as PLY files to be animated, rendered, or 3D printed with the help of other tools. To get started, create a new project by tapping the “+”-symbol in the project gallery. To edit an object in the scene, you can either tap it twice in the outline or tap the “Edit” button after selecting it and switching to the attributes panel. By tapping the plus button in the outline panel, you can now add strokes to your object and build up its shape. Although I am trying my best to provide a polished experience, Plastic is still in an early stage in its development and occasional bugs, missing features, and frequent design changes cannot be completely avoided. If you are interested in updates on the development progress, feel free to follow me on Twitter @raffael_kaehn. For feedback, please send me a direct message or an email to feedback@plastic.app.

Graintouch is a drawing app with the soul of print. Inspired by Risograph™ aesthetics, it lets you layer, blend, and create with the warmth of real ink—right on your screen. BOOL BRUSH A bold, organic vector brush that stacks colors like ink on paper. Blend, overlap, knockout and build rich textures with effortless strokes. PRINT SIMULATION See your artwork as if it just rolled off a risograph. Offset imperfections, layered tints, and the charm of real ink—without the mess. MINIMAL UI Nothing in your way, just pure drawing. A clean, focused space where tools feel like an extension of your hand. COLORFUL CONSTRAINTS A playful palette of 18 handpicked inks, straight from the riso universe. Instead of endless choice, you get meaningful constraints that spark creativity—just like mixing real inks on a print run. VECTOR STENCILS Every Layer becomes a crisp, resolution-independent stencil. Your drawings export as clean vector stencils, perfect for scaling, separating by color, and bringing straight to print—no loss, just pure shapes.