Pixel Overdraw

The Pixel Overdraw override mode visualizes the hit count for each pixel of the render target image. The brighter the color, the more times the pixel was updated.

Use this override mode to understand the overall complexity of your scene and identify potential areas for optimization. If the scene renders only a few objects, the amount of overdraw is usually low and no further optimization is required. If a scene has many overlapping objects, or objects with semitransparent textures (such as smoke, fog, or water), this typically results in a high load on the graphics card and lower frame rates.

Normal Picture

Pixel Overdraw

For more complete information about compiler optimizations, see our Optimization Notice.