||Permanently Orthographic View|| Here is a (nearly) fully operational 3d tri-filled engine, with dynamic lighting, and cool settings. Now, 3D is not fully implemented in Scratch, so you use math to fake depth by dividing an object's X and Y positions by its Z (distance) position. Because dividing by a larger number makes the result smaller, objects with a high Z value naturally shrink and move toward the center of the screen, creating a perspective effect. You can code this by setting a sprite's screen position to (X / Z) * multiplier and its size to 100 / Z. Creators use this basic formula to scale regular sprites, connect moving dots with the Pen tool to draw 3D wireframe boxes, or build raycast mazes. So, I used the wireframe 3D engine and implemented the tri-fill, and... yeah!
Thank you @-AutoFX- for the Tri-fill script! The initial wireframe program was made by me Z-layering is a bit... weird, but otherwise it's great Added Scaling Factor I removed the perspective factor to remove boundaries.