Parts of imported obj appear invisible

[dreamzfiction]

Hello creators.. So I recently hit a wall   after modelling was done in blender of a house model, I imported the model into terragen 4.5.56 as an obj, parts of the model were visible while others appeared invisible in the viewport and render. Which was never my desire

Ps: I confirmed that all normals were facing the correct orientation.

[WAS]

Is the effected geometry using ngons? Terragen doesn't render them. Additionally, is the opacity of the object part 0?

[dreamzfiction]

Yes the geometry is made of ngons, (and triangles).. wow I had no clue that terragen doesn't render ngons.. Will I have to remodel the House? Or is there a way around this?

[WAS]

Believe there are a few tutorials out there for converting ngons to tris in Blender. I remember this being asked before. Youtube probably has something to follow.

[dreamzfiction]

Thanks for the quick diagnostics.. I'll follow up on those tutorials.. I'm glad that i know the cause of the problem. Thanks again

[dreamzfiction]

Your suggestion worked like magic.. For blender users simply go to Mesh > Faces > Triangulate Faces and BOOM, you have Tris. After importing back to terragen i'm glad to inform you that i'ts no longer wearing the cloak of invisibility . Thank you WAS

[dreamzfiction]

After triangulation was done in blender.. It now looks as intended.