GL_OES_geometry_point_size
https://www.khronos.org/registry/OpenGL/extensions/OES/OES_geometry_shader.txt
GL_OES_geometry_point_size

	GL_GEOMETRY_SHADER_BIT_OES 0x00000004
	GL_LINES_ADJACENCY_OES 0xA
	GL_LINE_STRIP_ADJACENCY_OES 0xB
	GL_TRIANGLES_ADJACENCY_OES 0xC
	GL_TRIANGLE_STRIP_ADJACENCY_OES 0xD
	GL_LAYER_PROVOKING_VERTEX_OES 0x825E
	GL_UNDEFINED_VERTEX_OES 0x8260
	GL_GEOMETRY_SHADER_INVOCATIONS_OES 0x887F
	GL_GEOMETRY_LINKED_VERTICES_OUT_OES 0x8916
	GL_GEOMETRY_LINKED_INPUT_TYPE_OES 0x8917
	GL_GEOMETRY_LINKED_OUTPUT_TYPE_OES 0x8918
	GL_MAX_GEOMETRY_UNIFORM_BLOCKS_OES 0x8A2C
	GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS_OES 0x8A32
	GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_OES 0x8C29
	GL_PRIMITIVES_GENERATED_OES 0x8C87
	GL_FRAMEBUFFER_ATTACHMENT_LAYERED_OES 0x8DA7
	GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_OES 0x8DA8
	GL_GEOMETRY_SHADER_OES 0x8DD9
	GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_OES 0x8DDF
	GL_MAX_GEOMETRY_OUTPUT_VERTICES_OES 0x8DE0
	GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_OES 0x8DE1
	GL_FIRST_VERTEX_CONVENTION_OES 0x8E4D
	GL_LAST_VERTEX_CONVENTION_OES 0x8E4E
	GL_MAX_GEOMETRY_SHADER_INVOCATIONS_OES 0x8E5A
	GL_MAX_GEOMETRY_IMAGE_UNIFORMS_OES 0x90CD
	GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS_OES 0x90D7
	GL_MAX_GEOMETRY_INPUT_COMPONENTS_OES 0x9123
	GL_MAX_GEOMETRY_OUTPUT_COMPONENTS_OES 0x9124
	GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS_OES 0x92CF
	GL_MAX_GEOMETRY_ATOMIC_COUNTERS_OES 0x92D5
	GL_REFERENCED_BY_GEOMETRY_SHADER_OES 0x9309
	GL_FRAMEBUFFER_DEFAULT_LAYERS_OES 0x9312
	GL_MAX_FRAMEBUFFER_LAYERS_OES 0x9317
