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Ray Trace Depth

Ray trace depth sets the maximum number of times the PhotoWorks application can subdivide a scene into simple objects for ray trace calculations.

When ray tracing is enabled, the PhotoWorks application calculates the effect of light rays passing through objects in a scene. It is impractical to check every light ray against every object in the scene. The objects may be too large or complex. Instead, the PhotoWorks application checks for intersections between the light rays and simple objects in the scene.

Initially, the PhotoWorks application divides the scene into simple objects. If a light ray hits an object, the PhotoWorks application subdivides that object into even simpler objects. This process continues until the number of subdivisions equals the Ray trace depth value. The goal is to reduce the geometric complexity of each object that is struck by a light ray.

Small Ray trace depth values increase rendering time but decrease memory usage. The rendering time increases because the PhotoWorks application needs to test the intersection of light rays with more complex objects. Memory usage decreases because the PhotoWorks application creates fewer objects.



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