# What are the parameters measure the performance of a rendering? [closed]

Let's say I designed a housing model and rendered it using a rendering engine. how can I measure the performance of my rendering?

## closed as unclear what you're asking by Nicol Bolas, Christian Rau, Dan Hulme♦Apr 15 at 11:17

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• Can you narrow down what you want to know about the rendering performance? There can be many metrics and they too will depend on so many factors in the scene (e.g. complexity of shading models) – Simon F Apr 1 at 8:39

When comparing algorithms, you need to make sure that you are actually comparing images that were output by the same rendering engine. This is crucial if you want to report a faithful metric, otherwise the comparison is unfair and inherently depends on the implementation. For instance, if rendering engine $$A$$ takes twice as long as engine $$B$$ to fetch and load a texture, your reported error will be higher, even though the main algorithm you are testing is the same (assuming you are treating materials as blackboxes). The main downside is that rendering researchers are typically required to implement other algorithms in their engine to report the true performance of their new algorithm.