9.2 Alpha

Controls the opacity of the scene it is applied to. The opacity of an object affected by more than one Alpha effect is determined by multiplying the opacity value specified by each of them.

Parameters

Default

Range

Description

Alpha

1.0

[0.0 - 1.0]

The new opacity value of the user media. A value of 0.0 means the scene is fully transparent. A value of 1.0 means the scene is fully opaque.

Input pattern: (A)

Image-Op: No

9.2.1 Simple usage

The muvee style below halves the transparency of the user media.

; muSE v2
;
; My super awesome style.
; It halves the transparency of the user media.

(style-parameters)

(segment-durations 8.0)

(define muvee-global-effect
  (effect-stack (effect "Perspective" (A))
                (effect "CropMedia" (A))
                (effect "Alpha" (A)
                        (param "alpha" 0.5))))

This style halves the transparency of the user media.

9.2.2 Animated alpha

This example animates the transparency of an image to achieve a fade-to-black effect.

; muSE v2
;
; My super awesome Style
; This style creates a simple fade to black behaviour

(style-parameters)

(segment-durations 8.0)

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

(define muvee-segment-effect
  (effect "Alpha" (A)
          (param "Alpha" 1.0
                 (linear 0.5 0.0)
                 (linear 1.0 1.0))))

Refer to Explicit animation curves for more info.

← 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
	Alpha		1.0		[0.0 - 1.0]		The new opacity value of the user media. A value of 0.0 means the scene is fully transparent. A value of 1.0 means the scene is fully opaque.