Shader Help Please

[ChalklYne]

I am going to post various shaders and hopefully get the community to help me fix some of the screwy ones.

 

Any ideas as to why this shader sux? I will view the model from the left and it looks good... then if I strafe to the right, it fades to black until when I am all the way to it's right side, it goes black and I cannot see anything.

 

 

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models/map_objects/tiefacility/box_panel_vented
{
{
map models/map_objects/tiefacility/box_panel_vented_diff
blendFunc GL_ONE GL_ZERO
rgbGen lightingDiffuse
}
{
map models/map_objects/tiefacility/box_panel_vented_spec
blendFunc GL_SRC_ALPHA GL_ONE_MINUS_SRC_COLOR
detail
alphaGen lightingSpecular
}
{
map models/map_objects/tiefacility/tiehallreflect
blendFunc GL_DST_COLOR GL_SRC_COLOR
tcMod scale 1 2
tcGen environment
}
{
map models/map_objects/tiefacility/box_panel_vented_diff
blendFunc GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
rgbGen lightingDiffuse
}
}

 

 

 

Also, I remember back in the day a keyword for the shaders to reduce the amount of tcGen environment... Anyone know what I'm referring to?

 

 

Thank you!