maxwell-render the render engine-user manal-beta 1.2.00 User Manual

MAXWELL RENDERER: Calculation Layers and Tone Mapping

Includes light

energy from the

emitters for

calculaton

Includes bounced

light energy

for calculaton

Includes direct

reflected caustics

for calculaton

Includes direct

refracted caustics

for calculaton

Includes bounced
reflected caustics
for calculaton

Includes bounced
refracted caustics
for calculaton

Controls the intensity
of the image

Controls the white
saturation of the
burnt colors

Approved
monitor gamma

Not Available

Film ISO

Calculate Direct Layer
Calculates light rays from the emitters.

Calculate Indirect Layer
Calculates bounced light rays from the surfaces.

Do Direct Reflection Caustic Layer
Do Direct Refraction Caustic Layer
Calculates direct reflected and refracted caustics.

Do Indirect Reflection Caustic Layer
Do Indirect Refraction Caustic Layer
Calculates bounced reflected and refracted caustics.

Film ISO
Determines the standards for respond of film grains to the light. 
Lower values strengths motion blur and weakens brightness.
eg. photographers use ISO 400 for high action (sport) stills 
without having unwanted motion blur.

Intensity & Burn
This parameter applies a potential function to the irradiance value 
that is coming to the image pixel. With a value equal to one this 
parameter creates a linear response to the energy, and produces 
a very fast saturation in the pixel color. When you decrease this 
parameter you obtain a very fast increase in the dynamic range 
and avoiding a fast saturation of the pixels. This effect also 
produces a reduction of the contrast in the output image.

Monitor Gamma
Gamma describes the non-linear relationship between the pixel 
levels and the luminance of the monitor (the light energy it emits). 
Gamma affects middle tones; it has no effect on black or white.
If gamma is set too high, middle tones appear too dark. 
Conversely, if it's set too low, middle tones appear too light.