Hello, I'm the writer of this demo.
Because this is WebGL, this demo may or may not run, so here(https://github.com/Erkaman/webgl-rsm) you can see
an image of what it should look like.
This is an implementation of Indirect Lighting using Reflective Shadow Maps(http://www.klayge.org/material/3_12/GI/rsm.pdf).
This technique results in some nice color bleeding effects, which can be seen in the red glow on Lucy(statue)
and the blue glow on the cute rabbit. This is light that has bounced from the colored walls.
This is an implementation of Indirect Lighting using Reflective Shadow Maps(http://www.klayge.org/material/3_12/GI/rsm.pdf). This technique results in some nice color bleeding effects, which can be seen in the red glow on Lucy(statue) and the blue glow on the cute rabbit. This is light that has bounced from the colored walls.
The implementation details can be found in the repo: https://github.com/Erkaman/webgl-rsm#implementation-details