Rviz image don't show collada texture from Gazebo

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I have a problem with collada texture in Rviz.

In my Gazebo world I have a collada model with a texture (png file). I have a robot with a rgb sensor camera. This robot is defined in a .model file. When I launch gazebo with my world, I can see perfectly my collada model with its texture. Then in Rviz I add an Image display to subscribe to camera/image_raw topic. Here is my problem, in Imagen display I can see what the camera is seeing in gazebo but with the base color, I can't see the texture of collada model.

Could you help me with this problem?

Thank for your attention.