GL_ARB_multi_draw_indirect https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_multi_draw_indirect.txt GL_ARB_multi_draw_indirect void glMultiDrawArraysIndirect (GLenum mode, const void *indirect, GLsizei primcount, GLsizei stride) void glMultiDrawElementsIndirect (GLenum mode, GLenum type, const void *indirect, GLsizei primcount, GLsizei stride)