GrainFactory3

Abstract
Author	Didée
Version	3
Download	GrainFactory3.avsi
Category	Effects
License
Discussion	Doom9 Thread

Description

Noise generator that tries to simulate the behavior of silver grain on film.

Requirements

• AviSynth 2.5.8 or later
• Supported color formats: YV12
• Progressive input only

Required Plugins

• AddGrainC
• MaskTools2 2.0a48+

Syntax and Parameters

GrainFactory3 (clip clp, int "g1str", int "g2str", int "g3str", int "g1shrp", int "g2shrp", int "g3shrp", float "g1size", float "g2size", float "g3size", int "g1tex", int "g2tex", int "g3tex", int "temp_avg", int "ontop_grain", int "th1", int "th2", int "th3", int "th4")

Input:

clip  clp =

Input clip.

Strength of grain:

int  g1str = 13

Strength of grain / for dark areas.

Range: 0 - ???

int  g2str = 15

Strength of grain / for midtone areas.

Range: 0 - ???

int  g3str = 25

Strength of grain / for bright areas.

Range: 0 - ???

Sharpness of grain:

int  g1shrp = 60

Sharpness of grain / for dark areas (NO EFFECT when g1size=1.0 !!)

Range: 0 - 100

int  g2shrp = 66

Sharpness of grain / for midtone areas (NO EFFECT when g2size=1.0 !!)

Range: 0 - 100

int  g3shrp = 80

Sharpness of grain / for bright areas (NO EFFECT when g3size=1.0 !!)

Range: 0 - 100

Size of grain:

float  g1size = 1.50

Size of grain / for dark areas.

Range: 0.5 - 4.0

float  g2size = 1.20

Size of grain / for mid-tone areas.

Range: 0.5 - 4.0

float  g3size = 0.90

Size of grain / for bright areas

Range: 0.5 - 4.0

Texture:

int  g1tex = 0

Strength of "material texture" appearance.

Range: 0 - 100

int  g2tex = 0

(In fact: 'bump' effect)

Range: 0 - 100

int  g3tex = 0

For dark / midtone / bright grain.

Range: 0 - 100

Temporal averaging:

int  temp_avg = 0

Percentage of noise's temporal averaging.

Range: 0 - 100

Mixing zone:

int  th1 = 24

Start of dark->midtone mixing zone.

int  th2 = 56

End of dark->midtone mixing zone.

int  th3 = 128

Start of midtone->bright mixing zone.

int  th4 = 160

End of midtone->bright mixing zone

On top grain:

int  ontop_grain = 0

additional grain to put on top of previously generated grain.

Range:0 - ???

Examples

AviSource("Blah.avi")
Grainfactory3(5,7,10)

Changelog

 Changes 2008-10-03:
   - GrainFactory3
     - Shorten parameters' names
     - Add "mixing zone" parameters
     - Restructure parameters. Better control for dark, midtone, and bright areas.

 Changes 2008-10-01:
   - GrainFactory_MT1/MT2
     - Interdependent version for MaskTools or MaskTools2
     - For all changes see here

 Changes circa 2005:
   - GrainFactory
   - Initial release as a small "noise factory"

External Links

• Doom9 Forum - GrainFactory discussion.

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