# Distribution

From Eclat-Digital Ocean 2014 Documentation

Defines an angular distribution function. It is used by generic emitters

# Uniform

### Summary

The uniform distribution is isotropic over the half-sphere. Emitter using this distribution will be seen having the same luminance from any direction.

### Link

Uniform distribution reference

# Cone

### Summary

Uniform distribution over an cone defined by its angular radius.

### Link

# Soft cone

### Summary

Uniform distribution over a cone defined by its angular radius, followed by a falloff up to another larger angle.

### Link

Soft cone distribution reference

# Cosine exponent

### Summary

Distribution proportional to cos(θ)^{n}, where n is a parameter.

### Link

Cosine exponent distribution reference

# Map

### Summary

Distribution defined by an equirectangular projected luminance map image

### Link