This program makes little demo world, rendered realtime with raytracing on CPU. SSE2 CPU is required (there is version with no sse2 too, but much slower). On Intel i3 it gives about 35 fps at 480p.
I think it makes smoothest colors in the world. There are glass ball, mirror ball and other color balls. Reduce window size to improve frame rate. Use WASD and mouse. Use flashlight at night. Actually, there is nothing to do, just walk and see.
Also I added world_of_light folder. It is another render with light emission test.
Just 3 balls and reflections.
Here we can see sunset and upside down picture thru the glass ball at right.
Selfie in the mirror ball. We can see multiple reflections in eyes and in ball again.
Glossy balls.
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Balls in the dark.
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I made real lens with depth of field. I'm so cool.
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