The client apparatus 1 is connected to a network and includes a communication packet reception unit 13 and a texture processing unit 18. The communication packet reception unit 13 receives image data, audio data, and image type information designating type of the image data, which are transmitted from another client apparatus connected to the network. The texture processing unit 18 renders an image for the received image data. Moreover, the texture processing unit 18 subjects the image for the image data to a predetermined processing when the image type information received by the communication packet reception unit 13 is information of a predetermined image.