it lets the light flow between the camera and the lens reducing contrast and changing colors. in bright light, as in the second photo, you can see individual rays.
I can't see individual rays, as such. Or do you mean just sometimes, as apposed to in that particular picture?
Oh, and do you know how ray-tracing works? It's a method of producing photo-realistic computer-generated scenes. The concept is the cool thing, in that the program imagines a ray of light (per pixel in the image that's being created) leaving the camera lens, not arriving at it. Now the ray refracts through or reflects off the objects in the 3D scene until it hits a light or leaves the scene, it's travels being used determine the colour of the pixel.
The reason for this approach is only a ray per pixel needs to be plotted. It's still very slow though, and it used to take hours or days to generate a picture on my Amiga in the mid 80s.
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Oh, and do you know how ray-tracing works? It's a method of producing photo-realistic computer-generated scenes. The concept is the cool thing, in that the program imagines a ray of light (per pixel in the image that's being created) leaving the camera lens, not arriving at it. Now the ray refracts through or reflects off the objects in the 3D scene until it hits a light or leaves the scene, it's travels being used determine the colour of the pixel.
The reason for this approach is only a ray per pixel needs to be plotted. It's still very slow though, and it used to take hours or days to generate a picture on my Amiga in the mid 80s.
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