Area Lights

I have implemented a few more lights; These types of lights belong to a class called area lights.

They have a finite area and are visible to the renderer so we must be able to intersect with them, but also calculate its light contribution. We must be able to sample uniformly over the surface, retrieve the normal, and also the pdf at the sample point with respect to the solid angle as seen from a point.

It is possible that there is a bug in the implementation bacuase the back wall appears too bright; it may be possible that there is a problem with the normals.

Area Lights

Planerender-plane-area-light.png

Sphere

render-sphere-area-light1.png

Mesh

render-mesh-area-light.pngDisc

render-disc-area-light.png

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s