This question already has an answer here:

I've used some stock collada files and imported them into Blender. I did not make any changes to the models, aside from reducing their size. For testing purposes, the runway can be found here.

In the below picture, you'll see that the models look fine until the scene is rendered. My output setting is 1920 x 1080 with 100% resolution and 15% compression.

Any help is greatly appreciated!

Pre-render vs Render


marked as duplicate by Ray Mairlot, PGmath, JakeD, Denis, p2or Mar 21 '17 at 16:19

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.