Use auto_exposure to adjust the amount of apparent light that enters the camera. If you are using shader glow on an object entering a scene, the light level in the scene may change drastically. With auto_exposure set to true (the default), the amount of glow seen on the object can fluctuate. If this is the case, try using auto_exposure set to false.
auto_exposure only affects glow.
You may have to adjust the glow_color on the shader if you turn auto_exposure off. Do this by increasing the values above 255 (the normal limits for the color).
