Click and drag to move the vertices around. There are 2 transparent triangles being drawn among these 4 vertices, showing the exactness of this rasterization method.
A much more exact method of triangle rasterization than the method usually used in Scratch projects. This uses a scanline algorithm to draw the triangles according to the top-left rule, which makes for no missed or overdrawn pixels along triangle edges, which is important for rendering transparent objects in 3D. However, this is much slower than the usual method because it must draw many more lines.
