Chapter 15 Dynamic HTML Filters and Transitions Outline
- Slides: 61
Chapter 15 - Dynamic HTML: Filters and Transitions Outline 15. 1 15. 2 15. 3 15. 4 15. 5 15. 6 15. 7 15. 8 15. 9 15. 10 15. 11 15. 12 15. 13 Introduction Flip Filters: flipv and fliph Transparency with the chroma Filter Creating Image masks Miscellaneous Image Filters: invert, gray and xray Adding shadows to Text Creating Gradients with alpha Making Text glow Creating Motion with blur Using the wave Filter Advanced Filters: drop. Shadow and light blend. Transition reveal. Transition 2003 Prentice Hall, Inc. All rights reserved.
Objectives • In this lesson, you will learn: – To use filters to achieve special effects. – To combine filters to achieve an even greater variety of special effects. – To be able to create animated visual transitions between Web pages. – To be able to modify filters dynamically, using DHTML. 2003 Prentice Hall, Inc. All rights reserved.
15. 1 Introduction • Filters – Cause changes that are persistent • Transitions – Temporary – Allow transfer from one page to another with pleasant visual effect • For example, random dissolve 2003 Prentice Hall, Inc. All rights reserved.
15. 2 Flip Filters: flipv and fliph • flipv and fliph filters mirror text or images vertically and horizontally, respectively 2003 Prentice Hall, Inc. All rights reserved.
Outline flip. html (1 of 2) 2003 Prentice Hall, Inc. All rights reserved.
Outline flip. html (2 of 2) 2003 Prentice Hall, Inc. All rights reserved.
fliph filter applied Both fliph and flipv filters applied 2003 Prentice Hall, Inc. All rights reserved. No filters applied flipv filter applied
15. 3 Transparency with the chroma Filter • chroma filter applies transparency effects dynamically – Without using a graphics editor to hard-code transparency into the image • onchange – Fires when the value of a form changes 2003 Prentice Hall, Inc. All rights reserved.
Outline chroma. html (1 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline chroma. html (2 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline chroma. html (3 of 3) 2003 Prentice Hall, Inc. All rights reserved.
15. 4 Creating Image masks • Background is a solid color • Foreground is transparent to the image or color behind it 2003 Prentice Hall, Inc. All rights reserved.
Outline mask. html (1 of 2) 2003 Prentice Hall, Inc. All rights reserved.
Outline mask. html (2 of 2) 2003 Prentice Hall, Inc. All rights reserved.
15. 5 Miscellaneous Image Filters: invert, gray and xray • invert filter – Negative image effect • Dark areas become light and light areas become dark • gray filter – Grayscale image effect • All color is stripped from the image, only brightness data remains • xray filter – X-ray effect • Inversion of the grayscale effect 2003 Prentice Hall, Inc. All rights reserved.
Outline misc. html (1 of 2) 2003 Prentice Hall, Inc. All rights reserved.
Outline misc. html (2 of 2) 2003 Prentice Hall, Inc. All rights reserved.
2003 Prentice Hall, Inc. All rights reserved.
15. 6 Adding shadows to Text • shadow filter – Showing effect • Three-dimensional appearance 2003 Prentice Hall, Inc. All rights reserved.
Outline shadow. html (1 of 2) 2003 Prentice Hall, Inc. All rights reserved.
Outline shadow. html (2 of 2) 2003 Prentice Hall, Inc. All rights reserved.
15. 7 Creating Gradients with alpha • alpha filter – Gradient effect • Gradual progression from starting color to target color – style • • Uniform opacity (value 0) Linear gradient (value 1) Circular gradient (value 2) Rectangular gradient (value 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline alpha. html (1 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline alpha. html (2 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline alpha. html (3 of 3) 2003 Prentice Hall, Inc. All rights reserved.
2003 Prentice Hall, Inc. All rights reserved.
15. 8 Making Text glow • glow filter adds an aura of color around text 2003 Prentice Hall, Inc. All rights reserved.
Outline glow. html (1 of 4) 2003 Prentice Hall, Inc. All rights reserved.
Outline glow. html (2 of 4) 2003 Prentice Hall, Inc. All rights reserved.
Outline glow. html (3 of 4) 2003 Prentice Hall, Inc. All rights reserved.
Outline glow. html (4 of 4) 2003 Prentice Hall, Inc. All rights reserved.
15. 9 Creating Motion with blur • blur filter creates an illusion of motion by blurring text or images in a certain direction – Add • Adds a copy of the original image over the blurred image – Direction • Determines in which direction the blur filter is applied – strength • Determines how strong the blurring effect is 2003 Prentice Hall, Inc. All rights reserved.
Outline blur. html (1 of 5) 2003 Prentice Hall, Inc. All rights reserved.
Outline blur. html (2 of 5) 2003 Prentice Hall, Inc. All rights reserved.
Outline blur. html (3 of 5) 2003 Prentice Hall, Inc. All rights reserved.
Outline blur. html (4 of 5) 2003 Prentice Hall, Inc. All rights reserved.
Outline blur. html (5 of 5) 2003 Prentice Hall, Inc. All rights reserved.
15. 10 Using the wave Filter • wave filter allows user to apply sine-wave distortions to text and images on Web pages – add • Adds a copy of the text or image underneath the filtered effect – freq • Determines the frequency of the wave applied – phase • Indicates the phase shift of the wave 2003 Prentice Hall, Inc. All rights reserved.
Outline wave. html (1 of 2) 2003 Prentice Hall, Inc. All rights reserved.
Outline wave. html (2 of 2) 2003 Prentice Hall, Inc. All rights reserved.
2003 Prentice Hall, Inc. All rights reserved.
15. 11 Advanced Filters: drop. Shadow and light • drop. Shadow – Creates a blacked-out version of the image, and places it behind the image – offx and offy properties • Determined by how many pixels the drop shadow is offset – color property • Specifies the color of the drop shadow • light filters – Most powerful and advanced filter in Internet Explorer 6. 0 – Allows simulation of a light source shining on Web page – All parameters and methods are set by scripting – add. Point • Adds a point light source 2003 Prentice Hall, Inc. All rights reserved.
Outline dropshadow. html (1 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline dropshadow. html (2 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline dropshadow. html (3 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline conelight. html (1 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline conelight. html (2 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline conelight. html (3 of 3) 2003 Prentice Hall, Inc. All rights reserved.
15. 12 blend. Transition • Example of the blend. Trans transition – Creates a smooth fade-in/fade-out effect 2003 Prentice Hall, Inc. All rights reserved.
Outline blendtrans. html (1 of 2) 2003 Prentice Hall, Inc. All rights reserved.
Outline blendtrans. html (2 of 2) 2003 Prentice Hall, Inc. All rights reserved.
Outline blendtrans 2. html (1 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline blendtrans 2. html (2 of 3) 2003 Prentice Hall, Inc. All rights reserved.
Outline blendtrans 2. html (3 of 3) 2003 Prentice Hall, Inc. All rights reserved.
2003 Prentice Hall, Inc. All rights reserved.
15. 13 reveal. Transition • reveal. Trans filter – Create professional-style transitions – From box out to random dissolve 2003 Prentice Hall, Inc. All rights reserved.
Outline revealtrans. html (1 of 4) 2003 Prentice Hall, Inc. All rights reserved.
Outline revealtrans. html (2 of 4) 2003 Prentice Hall, Inc. All rights reserved.
Outline revealtrans. html (3 of 4) 2003 Prentice Hall, Inc. All rights reserved.
Outline revealtrans. html (4 of 4) 2003 Prentice Hall, Inc. All rights reserved.
2003 Prentice Hall, Inc. All rights reserved.
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