if you push the source point way off the screen, you’ll start to get that effect. you can do something similar with cc light burst too, and it has a halo alpha option which is a bit more like what these rays look like. you could do something similar with shine, but you’d need to create a different layer for the shine part that looked more like outlined circles rather than filled circles…
for a quick setup, create a new white solid and add the checker board effect (it will be squares instead of circles, but this is a quick demo). make it 3d and rotate the x-axis -90 and position it so it seems like it’s on the floor.
add a new adjustment layer and add shine or cc light burst. adjust y-position of the source point or center property to something like 3000 to move it way off the bottom of the screen.
add a 3d camera and use the camera orbit and tracking tools to move around the scene to see how it reacts…
obviously there is a fair amount of work to still be done, but i think this will get you close…
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW