If you’ve printed CMYW 4-color lithophanes before, you’ve probably noticed a common issue with current tools: prints often look washed-out, muddy, and covered in a grayish haze, losing vivid contrast under backlighting.
To solve this, I reworked and simplified the 4-color blending algorithm to eliminate the gray cast at the generation stage. The result is cleaner color separation, punchier contrast, and significantly better light transmission—using standard filaments.
What’s improved:
-
Zero Muddy Grays: Optimized CMYW layer distribution so colors pop with natural saturation.
-
Custom Sizing: Freely set width and height to fit your specific lightboxes and frames.
-
Web-Based & Instant: Slicer-ready export directly in your browser.
-
100% Free: Open for all makers to test.
Try it here: https://my-gpu-node.top
(Attached below are side-by-side test prints using this generator.)
Would love to hear thoughts and slicer feedback from the community—and hope the MakerLab team might find this algorithm approach useful for future tool upgrades!