This thread is a book to reference all necessary opengl settings to get the best emulation in OpenGL High Definition Mode for each listed games.
each video options are listed just below, use the 2 letters code when you add video options for a specific game.
Frame limiter, frameskip are not necessary.
AF : Adjust framebuffer Access
SU: Special upload detection
OD: OffScreenDrawing (by default it's set to 3, but you can change it from 0 to 4, if not 3 set for example OD4)
AB: Advanced Blending
AM: Alpha MultiPass
MB: Mask Bit
FT: Frame Texture
BF: Busy Fix
ES: Expand Screen Width
G4: G4 Polygon Cache
OE: Odd/even bit detection
SD: Swap front/back detection
DF: Direct Framebuffer Access
DC: Disable coord check
RB: Remove blue glitch
LU: Lazy update detection