Improving performance with LOD groups
Optimization principal 5: Minimize the number of draw calls.
Detailed geometry and high-resolution texture maps can be a double-edged sword: they can deliver a better visual experience, but they can impact negatively on the game's performance. LOD groups address this issue by replacing high-quality objects by simplified versions whenever that object takes up a smaller portion of the screen than necessary for a high-quality version to make a significant difference.
In this recipe, we will use a LOD group to create a game object featuring two different levels of detail: a high-quality version for whenever the object takes up more than 50 percent of the screen and a low-quality version for the times it takes up ...
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