GL_NV_bindless_multi_draw_indirect_count https://www.khronos.org/registry/OpenGL/extensions/NV/NV_bindless_multi_draw_indirect_count.txt GL_NV_bindless_multi_draw_indirect_count void glMultiDrawArraysIndirectBindlessCountNV (GLenum mode, const void *indirect, GLintptr drawCount, GLsizei maxDrawCount, GLsizei stride, GLint vertexBufferCount) void glMultiDrawElementsIndirectBindlessCountNV (GLenum mode, GLenum type, const void *indirect, GLintptr drawCount, GLsizei maxDrawCount, GLsizei stride, GLint vertexBufferCount)