Learn how to combine matcap images to create new GLSL materials for real-time model display in Blender's GLSL shading mode. Explore techniques for merging existing matcap images, crafting custom materials, and saving the results as new matcap images for future use in sculpting or model showcasing. Gain valuable insights into enhancing your 3D workflow and achieving impressive real-time rendering results in this 18-minute tutorial from CG Cookie.