9.15 GradientFade

Progressively reveals its input image based on a given grey scale image called a gradient map. The image will be show in full at the beginning. It will progressively disappear starting from the dark regions of the gradient map and ending with the bright regions. At the end, the image will have completely disappeared.

Parameters

Default

Range

Description

Path

n/a

n/a

The full path of the gradient map

Feather

10

>0

The blurriness of the boundary of the revealed portions of the image. Values more than 250.0 create pixel-sharp boundaries (along with jaggies). The default 10.0 results in a moderately soft edge. Use values >= 1.0.

Reverse

0

{0,1}

When set to 1, Reverses the animation so that the input image will start off by being entirely invisible. It will start to show through the dark parts of the gradient map first followed by the brighter parts and will end up fully visible.

Input pattern: (A)

Image-Op: Yes.

9.15.1 A gradient fade between two pictures

Though the GradientFade is written as a single input effect, we can use it as a transition by superimposing two gradient fades using layers.

; muSE v2
;
; My super awesome style.
; A gradient fade example.

(style-parameters)

(segment-durations 8.0)

(define muvee-global-effect (effect-stack
                                 (effect "CropMedia" (A))
                                 (effect "Perspective" (A))))

(define muvee-transition (layers (A B)
                                (effect "GradientFade" ()
                                        (input 0 B)
                                        (param "Feather" 20.0)
                                        (param "Reverse" 1) ; Progressively reveal input B
                                        (param "Path" (resource "GradientMap.png")))
                                (effect-stack
                                        (effect "Translate" (A)
                                                (param "z" 0.003))
                                        (effect "GradientFade" ()
                                                (input 0 A)
                                                (param "Feather" 20.0)
                                                (param "Reverse" 0) ; Progressively hide input A
                                                (param "Path" (resource "GradientMap.png"))))))

The gradient map that was used is shown below.

← prev up next →

1	License
2	Getting Started
3	Style Package Structure
4	Anatomy of a muvee
5	Tutorials
6	Specifying Style Behaviour
7	About effects and transitions
8	Sound effects
9	List of primitive effects and transitions
10	Show Time - the muvee timeline
11	Utility functions
12	A Gentle Introduction to mu SE
	Index

9.1	Alignment
9.2	Alpha
9.3	Blur
9.4	Blur Layers
9.5	Cg
9.6	Color Quad
9.7	Color Map RGB
9.8	Color Select
9.9	Crop Media
9.10	Cross Fade
9.11	Desaturate
9.12	Distort
9.13	Flip
9.14	Fragment Program
9.15	Gradient Fade
9.16	Gradient Fade_ Color Border
9.17	Greyscale
9.18	Height Map
9.19	Light
9.20	Look At
9.21	Mask
9.22	Material
9.23	Moving Polygons
9.24	Old Movie Lines
9.25	Old Movie Scratches
9.26	Page Curl
9.27	Perspective
9.28	Picture Quad
9.29	Radial Blur
9.30	Rapid Overlay
9.31	Reflect
9.32	Reflect And Ripples
9.33	RGBto YUV
9.34	Rotate
9.35	Saturate
9.36	Scale
9.37	Seamless Background
9.38	Sepia
9.39	Shatter
9.40	Snow
9.41	Text Out
9.42	Texture Subset
9.43	Translate
9.44	Vertex Program
9.45	Volumetric Lights

Parameters	Default	Range	Description
Path	n/a	n/a	The full path of the gradient map

Feather	10	>0	The blurriness of the boundary of the revealed portions of the image. Values more than 250.0 create pixel-sharp boundaries (along with jaggies). The default 10.0 results in a moderately soft edge. Use values >= 1.0.

Reverse	0	{0,1}	When set to 1, Reverses the animation so that the input image will start off by being entirely invisible. It will start to show through the dark parts of the gradient map first followed by the brighter parts and will end up fully visible.