前提条件

dotnet add package Aspose.Slides.Foss

外側ドロップシャドウを追加

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Drawing;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var shape = prs.Slides[0].Shapes.AddAutoShape(
    ShapeType.Rectangle, 100, 100, 300, 120
);
shape.AddTextFrame("Shadowed Shape");

var ef = shape.EffectFormat;
ef.EnableOuterShadowEffect();
ef.OuterShadowEffect.BlurRadius = 10;       // softness in points
ef.OuterShadowEffect.Direction = 315;       // 315 degrees = upper-left
ef.OuterShadowEffect.Distance = 8;          // offset in points
ef.OuterShadowEffect.ShadowColor.Color = Color.FromArgb(128, 0, 0, 0);

prs.Save("shadow.pptx", SaveFormat.Pptx);

Common Direction values: 0=右, 45=右下, 90=下, 180=左, 270=上, 315=左上.

グロー効果を追加

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Drawing;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var shape = prs.Slides[0].Shapes.AddAutoShape(
    ShapeType.Ellipse, 150, 100, 250, 250
);

var ef = shape.EffectFormat;
ef.EnableGlowEffect();
ef.GlowEffect.Radius = 20;
ef.GlowEffect.Color.Color = Color.Gold;

prs.Save("glow.pptx", SaveFormat.Pptx);

ガウスぼかしを適用する

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var shape = prs.Slides[0].Shapes.AddAutoShape(
    ShapeType.Rectangle, 100, 100, 350, 180
);
shape.EffectFormat.SetBlurEffect(radius: 10, grow: true);

prs.Save("blur.pptx", SaveFormat.Pptx);

grow: true はブラー領域をシェイプの境界の外側に拡張します; grow: false はブラーをシェイプ内部でクリップします。

3Dベベルを適用する

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var shape = prs.Slides[0].Shapes.AddAutoShape(
    ShapeType.Rectangle, 150, 150, 280, 120
);
shape.AddTextFrame("3D Button");

var tdf = shape.ThreeDFormat;
tdf.BevelTop.BevelType = BevelPresetType.Circle;
tdf.BevelTop.Width = 12;
tdf.BevelTop.Height = 6;

prs.Save("bevel.pptx", SaveFormat.Pptx);

BevelPresetType の値: Circle, RelaxedInset, CoolSlant, Divot, Riblet, HardEdge, Slope, Convex

カメラとライトリグを使用した3Dベベル

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var shape = prs.Slides[0].Shapes.AddAutoShape(
    ShapeType.Rectangle, 150, 150, 280, 120
);
shape.AddTextFrame("Metal Button");

var tdf = shape.ThreeDFormat;
tdf.BevelTop.BevelType = BevelPresetType.Circle;
tdf.BevelTop.Width = 10;
tdf.BevelTop.Height = 5;
tdf.Camera.CameraType = CameraPresetType.PerspectiveAbove;
tdf.LightRig.LightType = LightRigPresetType.Balanced;
tdf.LightRig.Direction = LightingDirection.Top;
tdf.Material = MaterialPresetType.Metal;
tdf.Depth = 20;

prs.Save("3d-metal.pptx", SaveFormat.Pptx);

シャドウと3Dベベルを組み合わせる

両方のエフェクトシステムを同時に同じシェイプで有効にできます：

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Drawing;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var shape = prs.Slides[0].Shapes.AddAutoShape(
    ShapeType.RoundCornerRectangle, 150, 150, 320, 130
);
shape.AddTextFrame("Premium Card");

// Solid fill
shape.FillFormat.FillType = FillType.Solid;
shape.FillFormat.SolidFillColor.Color = Color.FromArgb(255, 30, 80, 180);

// 3D bevel
var tdf = shape.ThreeDFormat;
tdf.BevelTop.BevelType = BevelPresetType.Circle;
tdf.BevelTop.Width = 8;
tdf.Camera.CameraType = CameraPresetType.PerspectiveAbove;
tdf.Material = MaterialPresetType.Plastic;

// Drop shadow
var ef = shape.EffectFormat;
ef.EnableOuterShadowEffect();
ef.OuterShadowEffect.BlurRadius = 12;
ef.OuterShadowEffect.Direction = 270;
ef.OuterShadowEffect.Distance = 6;
ef.OuterShadowEffect.ShadowColor.Color = Color.FromArgb(80, 0, 0, 0);

prs.Save("premium-card.pptx", SaveFormat.Pptx);

エフェクトの確認と削除

using Aspose.Slides.Foss;

using var prs = new Presentation();
var shape = prs.Slides[0].Shapes.AddAutoShape(
    ShapeType.Rectangle, 100, 100, 200, 100
);
var ef = shape.EffectFormat;

ef.EnableOuterShadowEffect();
ef.EnableGlowEffect();
Console.WriteLine($"Has effects: {!ef.IsNoEffects}");  // True

ef.DisableOuterShadowEffect();
ef.DisableGlowEffect();
Console.WriteLine($"Has effects: {!ef.IsNoEffects}");  // False

形状に3D効果と影を適用する方法