# Imagick::shadeImage

(PECL imagick 2, PECL imagick 3)

Imagick::shadeImage — Creates a 3D effect

### 说明

public Imagick::shadeImage(bool `$gray`, float `$azimuth`, float `$elevation`): bool

Shines a distant light on an image to create a three-dimensional effect. You control the positioning of the light with azimuth and elevation; azimuth is measured in degrees off the x axis and elevation is measured in pixels above the Z axis. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。

### 参数

`gray`

  A value other than zero shades the intensity of each pixel.

`azimuth`

  Defines the light source direction.

`elevation`

  Defines the light source direction.

### 返回值

成功时返回 `true`。

### 错误／异常

Throws ImagickException on failure.

### 示例

示例 #1 Imagick::shadeImage()

`<?php
function shadeImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->shadeImage(true, 45, 20);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>`
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