Sandman in the outliner window:
If you have an old model with an image plane, you will have a material created for that,
Drag the background image to that material and popup menu "Texture Type" should appear; select emission.
You will like to have emission color to be set to white, that way shading/viewing angle will not affect the image.
By keeping the image as diffuse as well you can open the model in old wings releases too.
If you have an old model with an image plane, you will have a material created for that,
Drag the background image to that material and popup menu "Texture Type" should appear; select emission.
You will like to have emission color to be set to white, that way shading/viewing angle will not affect the image.
By keeping the image as diffuse as well you can open the model in old wings releases too.