static void vrend_init_pstipple_texture(struct vrend_context *ctx)
{
   glGenTextures(1, &ctx->pstipple_tex_id);
   glBindTexture(GL_TEXTURE_2D, ctx->pstipple_tex_id);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_R8, 32, 32, 0, GL_RED, GL_UNSIGNED_BYTE, NULL);
   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

   ctx->pstip_inited = true;
}

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.