| LOCATION = "location" |
| OFFSET = "offset" |
| BINDING = "binding" |
| INDEX = "index" |
| SET = "set" |
| BUILTIN = "builtin" |
| INPUT_ATTACHMENT_INDEX = "input_attachment_index" |
| ORIGIN_UPPER_LEFT = "origin_upper_left" |
| OVERRIDE_COVERAGE = "override_coverage" |
| BLEND_SUPPORT_ALL_EQUATIONS = "blend_support_all_equations" |
| PUSH_CONSTANT = "push_constant" |
| POINTS = "points" |
| LINES = "lines" |
| LINE_STRIP = "line_strip" |
| LINES_ADJACENCY = "lines_adjacency" |
| TRIANGLES = "triangles" |
| TRIANGLE_STRIP = "triangle_strip" |
| TRIANGLES_ADJACENCY = "triangles_adjacency" |
| MAX_VERTICES = "max_vertices" |
| INVOCATIONS = "invocations" |
| WHEN = "when" |
| KEY = "key" |
| CTYPE = "ctype" |
| INVALID = . |