Easy Triangles

Open a new image of any color background (make sure it is square).

Choose Image/Deformation/Perspective-Vertical or Horizontal. Move the slide bar all the way to the end (either -100 or 100). (Note: whatever background is selected in the palette will show up in your image).

A=Horizontal -100 B=Horizontal 100 C=Vertical -100 D=Vertical 100

You can now alter your triangle any way you want. Add dropshadows, use the cutout filter to give it a bevel, or use specialty filters like Blade Pro, Filter Factory Gallery...