Parameters stride Specifies the byte offset between consecutive edge flags.
If stride is zero the edge flags are understood to be tightly packed in the array. Description glEdgeFlagPointerEXT specifies the location and data format of an array of boolean edge flags to use when rendering when using the vertex array extension. Static elements may be modified by the application, but once they are modified, the application must explicitly respecify the array before using it for any rendering. When an edge flag array is specified, stride , count and pointer are saved as client-side state, and static array elements may be cached by the implementation. If enabled, the edge flag array is used when glDrawArraysEXT or glArrayElementEXT is called.