Choose and Colour a Polyhedron ************************************** - Select Edit Mode, then choose a Polyhedron Number - Select colours using the colour picker and click the little numbered yellow circles to apply the colours. * The polyhedra have a hidden back side too! * Use <arrow> keys and <a> & <z> keys to rotate! ** Remember to Remix or Save Now to save your polyhedron with its colours ** * I would love to see your remixes and how you colour the polyhedra. - The Rhombic Triacontahedron (Number 25) only has quadrilateral faces but 3 faces meet at some vertexes and 5 faces meet at other vertexes. This suggests a lot of interesting and different colour schemes. NB: If you click the "Reset colours by face shape" button, some polyhedra such as the Rhombic Triacontahedron will be coloured with only one colour as all faces are the same shape. - There is a gentle Lighting option inside this project. You can set Lighting = 1 if you wish. - The Rhombic Hexecontrahedron (Number 32) is the only non-convex polyhedron in this project. In Edit Mode some numbers for hidden back faces will be visible. Use the face numbers in the centre of the front faces to colour them. Huge thanks to Dave McCooey who has a wonderful website supplying the data to define lots of different polyhedra: http://dmccooey.com/polyhedra/index.html I imported data from Dave McCooey's website for 36 polyhedra. Sprite 2 holds the 5 Platonic & 13 Archimedean Solids stored in "for this sprite only" lists. Sprite 3 holds data for the 13 Catalan Solids and another 5 interesting assorted polyhedra. * There are notes at the top of Sprite 1 explaining how to import data for other polyhedra from Dave McCooey's website http://dmccooey.com/polyhedra/ - My code supports a maximum of 120 faces for a polyhedron but this would be easy to change. 3D Tutorial Studio: https://scratch.mit.edu/studios/5040029/ 3D Polyhedrons / Polyhedra Studio: https://scratch.mit.edu/studios/5085215/ Huge thanks to @TheLogFather for his "Faster Triangle Filler" 3D Rotation theory from Wikipedia: https://en.wikipedia.org/wiki/Rotation_matrix
