The video game Dordogne, developed in Unity, did not opt for a post-processing filter to simulate watercolor. Its team chose a radical artisanal path: painting each texture by hand with real watercolor on paper, scanning it at high fidelity, and projecting it onto three-dimensional geometry. This hybrid process breaks the barrier between traditional art and video game programming, generating a visual style that is, literally, a living watercolor inside a 3D engine.
Technical pipeline: from brush to polygon in Unity 🎨
The workflow began with physical painting on watercolor paper, capturing textures of backgrounds, flora, and architecture. These pieces were digitized using high-fidelity scanners to preserve the paper grain and pigment transparencies. The next critical step was integration in Photoshop, where perspective distortions were corrected and elements were cropped to fit the UVs of the 3D models. In Unity, the team mapped these flat textures onto polygonal geometry, using custom shaders that respected the luminosity and color bleeding. The biggest technical challenge was avoiding the tiling effect and maintaining visual coherence between backgrounds and characters, which also received pictorial treatments to not break the canvas illusion.
Narrative advantages of the hybrid technique 🖌️
Beyond the technical achievement, this artistic decision enhances the game's emotional narrative. By using real watercolors, each scene possesses an organic and unrepeatable texture that digital rendering could never match. The imperfection of the human stroke and the variation of pigment on paper create an atmosphere of melancholy and memory that reinforces the protagonist's story. For the developer, this pipeline demonstrates that innovation does not always lie in the most complex code, but in knowing how to build bridges between classical artistic disciplines and modern engines like Unity.
How the Dordogne team managed to integrate real hand-painted watercolors into the Unity engine without resorting to post-processing filters, and what technical challenges they faced to maintain pictorial fidelity during animation and real-time interaction
(PS: optimizing for mobile is like trying to fit an elephant into a Mini Cooper)