Smaller area = less render time supposed to be better for scrolling. use arrow keys and turbo mode. If you are scrolling, try the largest pen sizes. ------------------------------------ Based on nXIII's Simplex project, I was inspired to turn it into a terrain generator. To modify the color scheme, change the values in the lists: Scheme Color & Scheme Shade you can change the number of colors as well (download to see script) I imagine this is similar to how games like minecraft generate their terrains.