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I created a scene with a big reflective object in the front. unfortunately the refelctions seem to have much bigger pixels than the rest of the scene. As a work-around I thought about rendering the reflective area again in a higher resolution but I assume there is a better way of solving this. I am looking for a time-saving solution.
Which render-values do I have to change in order to get rid of this problem without increasing render-time too much?