How to De-Winterize the NAVS GP9?

[dcarleton]

Some nicely textured Texas and Pacific geeps arrived in the file library not too long ago. Beautiful model, but the details are more appropriate for winter along the great lakes. What is the best way to remove the winterization details so that these units look more at home in Texas? Especially the Engineer's window.

[Darkhorse427]

I will take a stab at it for you. the window and the outside of the winterization hatch are somewhat easy. If I remember there is an inside part of the hatch that is a little more difficult to track down. also I will have to re do all of the textures to not include the shadow from the winterization hatch

[dcarleton]

That would be fantastic. But no hurry, these are just details.
And again, great work on the textures.

[Darkhorse427]

All weather window and outside texture of the winterization hatch are easy to alpha out. The problem with the hatch is that the inner part of the hatch uses the same part of the texture sheet as the underside of the locomotive, if you alpha it out you get very undesired results.
SOO GP9 alpha issue.jpg
the part of the texture sheet,
SOO GP9 Sheet.jpg
SOO GP9 Hatch.jpg

[dcarleton]

The winterization cover over the radiator fan was not necessarily limited to the far North, so it's plausible here.
The all-weather window, on the other hand, that's out of place in the South. Good job on the window.

[Darkhorse427]

the oddity with removing the all weather window is now there is no sunshade on the engineer's side only the firemans

[geepster775]

Maybe the solution lies in using one of Tyler Bundy's 5,000 variations of the GP9 as the starting point.

[yellowdog]

All weather window and outside texture of the winterization hatch are easy to alpha out. The problem with the hatch is that the inner part of the hatch uses the same part of the texture sheet as the underside of the locomotive, if you alpha it out you get very undesired results.

Perhaps this can be resolved by modifying prim states in the shape file?

[burgerbern]

the GP9 units also need dynamic brakes to be totally accurate, they are brilliant as they are but would be even better if there is a shape that has that feature as well

https://www.texaspacificrailway.org/diesel/gp-9/1131

[SD40-2]

Because the actual locomotive body and frame use different shapes, you can adjust the prim states to have the underbody opaque, but the winterization hatch transparent. The only problem I see is modifying the textures to suit.

And I spoke too soon. You can't do that because of how the model is set up, they're tied to the same prim state.

[yellowdog]

you can adjust the prim states to have the underbody opaque, but the winterization hatch transparent. The only problem I see is modifying the textures to suit.

If the prim states are modified correctly (and the areas in question aren't tied to the same prim state), one will ignore the alpha channel of the texture and the other will acknowledge it.