New functionality in the core OpenGL 4.1 specification includes:
- Full compatibility with OpenGL ES 2.0 APIs for easier porting between mobile and desktop platforms;
- The ability to query and load a binary for shader program objects to save re-compilation time;
- The capability to bind programs individually to programmable stages for programming flexibility;
- 64-bit floating-point component vertex shader inputs for higher geometric precision;
- Multiple viewports for a rendering surface for increased rendering flexibility.
New ARB extensions introduced with OpenGL 4.1 include:
- OpenGL sync objects linked to OpenCL event objects for enhanced OpenCL interoperability;
- The ability to set stencil values in a fragment shader for enhanced rendering flexibility;
- Features to improve robustness, for example when running WebGL applications;
- Callback mechanisms to receive enhanced errors and warning messages.
Reference from Here
