renderer.py 文件源码

def clear_fn(self):
        color = tf.placeholder(tf.float32, [3], name="ph_color")
        depth = tf.placeholder(tf.float32, [], name="ph_depth")
        packed_color = utils.pack_colors(color, 0)
        tiled_color = tf.fill([self.height, self.width], packed_color)
        tiled_depth = tf.fill([self.height, self.width], depth)
        assign_color = tf.assign(self.color, tiled_color)
        assign_depth = tf.assign(self.depth, tiled_depth)
        self.commands.append(assign_color)
        self.commands.append(assign_depth)

        def _clear(color_val=[0., 0., 0.], depth_val=FLT_MIN):
            self.args[color] = color_val
            self.args[depth] = depth_val

        return _clear