GlStateManager.glAlphaFunc(512,0f);
//render
GlStateManager.glAlphaFunc(512,0.1f);
GlStateManager.glAlphaFunc(512,0f);
//render
GlStateManager.glAlphaFunc(512,0.1f);
mc.entityRenderer.loadShader(new ResourceLocation("shaders/post/menu_blur.json"));
(edited)onGuiClosed
mc.entityRenderer.stopUseShader();