Bump Converter Proper Usage

[dj_buckley]

What is the correct way to use the bump converter in terms of the strength and blur values?

To change the strength do I use the Native Max value in the Maps rollout?

What about blur?  Do I do that in the bitmap or in the blur value of the bump converter?  For example I have a CG Source multitexture map in a bump converter in the bump slot.  In the multitexture I've specified a blur of 0.01 for my wooden boards.  If I leave the bump converter blur at 1 - what blur value is being applied to my textures?

[mferster]

The strength value is multiplicative with the maps bump amount.

so a bump amount value of 1.0 with a bumpconverter strength value of 4, is the same as a bump amount value of 0.5 and bumpconverter strength of 8.

the blur value of your map contributes to the blur value of the bumpconverter. So however much blur you define on the map level gets more blur added on top of it with the bumpconverter blur.

It should be noted that bumpconverter blur works differently than a map's blur offset. bumpconverter works on screenspace where map blur offset works on worldspace. ie) it will look different if you render it at 640x480 then when you render at 6400x4800.

*edits for clarification

[dj_buckley]

Perfect, thanks for clearing it up