glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, GL_STENCIL, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &value);
if(value!=GL_NONE)
sys_format = (sys_format, STENCIL_ATTACHMENT);
glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, GL_STENCIL, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &value);
if(value!=GL_NONE)
sys_format = (sys_format, STENCIL_ATTACHMENT);