umlum questions

umlum answers

• Is it possible to link the axes of two surface plots for 3d-rotation?
• How do I declare the OpenGL version in shaders on Android?
• OpenGLES 2 -- when to glBindTexture, and when to glActiveTexture?
• How do you tell OpenGL ES 2.0 to use a texture as the depth buffer?
• OpenGL ES2.0 glReadPixels() read data from renderbuffer through framebuffer