1 /*
2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package test3d;
27
28 import javafx.application.ConditionalFeature;
29 import javafx.application.Platform;
30 import javafx.scene.Group;
31 import javafx.scene.PerspectiveCamera;
32 import javafx.scene.Scene;
33 import javafx.scene.paint.Color;
34 import javafx.scene.shape.Rectangle;
35 import javafx.stage.Stage;
36 import org.junit.Test;
37 import testharness.VisualTestBase;
38
39 /**
40 * Basic visual near and far clipping tests using glass Robot to sample pixels.
41 */
42 public class NearAndFarClipTest extends VisualTestBase {
43
44 private Stage testStage;
45 private Scene testScene;
46
47 private static final double TOLERANCE = 0.07;
48 private static final double OFFSET_PERCENT = 0.01; // 1 percent tolerance
49
50 @Test(timeout=5000)
51 public void testNearAndFarClips() {
52 final int WIDTH = 500;
53 final int HEIGHT = 500;
54 final double FOV = 30.0;
55 final double NEAR = 0.1;
56 final double FAR = 10.0;
57
58 runAndWait(() -> {
59 testStage = getStage();
60 testStage.setTitle("Near and Far Clip Test");
61
62 final double tanOfHalfFOV = Math.tan(Math.toRadians(FOV) / 2.0);
63 final double halfHeight = HEIGHT / 2;
64 final double focalLength = halfHeight / tanOfHalfFOV;
65 final double eyePositionZ = -1.0 * focalLength;
66 final double nearClipDistance = focalLength * NEAR + eyePositionZ;
67 final double farClipDistance = focalLength * FAR + eyePositionZ;
68 final double nearClipDistanceOffset = Math.abs(nearClipDistance * OFFSET_PERCENT);
69 final double farClipDistanceOffset = Math.abs(farClipDistance * OFFSET_PERCENT);
70
71 // System.out.println("In scene coordinate: focalLength = " + focalLength
72 // + ", nearClipDistance = " + nearClipDistance
73 // + ", nearClipDistanceOffset = " + nearClipDistanceOffset
74 // + ", farClipDistance = " + farClipDistance
75 // + ", farClipDistanceOffset = " + farClipDistanceOffset);
76
77 Rectangle insideRect = new Rectangle(220, 220, Color.GREEN);
78 insideRect.setLayoutX(140);
79 insideRect.setLayoutY(140);
80
81 Rectangle insideNearClip = new Rectangle(16, 16, Color.BLUE);
82 insideNearClip.setLayoutX(242);
83 insideNearClip.setLayoutY(242);
84 insideNearClip.setTranslateZ(nearClipDistance + nearClipDistanceOffset);
85
86 Rectangle outsideNearClip = new Rectangle(16, 16, Color.YELLOW);
87 outsideNearClip.setLayoutX(242);
88 outsideNearClip.setLayoutY(242);
89 outsideNearClip.setTranslateZ(nearClipDistance - nearClipDistanceOffset);
90
91 Rectangle insideFarClip = new Rectangle(3000, 3000, Color.RED);
92 insideFarClip.setTranslateX(-1250);
93 insideFarClip.setTranslateY(-1250);
94 insideFarClip.setTranslateZ(farClipDistance - farClipDistanceOffset);
95
96 Rectangle outsideFarClip = new Rectangle(4000, 4000, Color.CYAN);
97 outsideFarClip.setTranslateX(-1750);
98 outsideFarClip.setTranslateY(-1750);
99 outsideFarClip.setTranslateZ(farClipDistance + farClipDistanceOffset);
100
101 Group root = new Group();
102
103 // Render in painter order (far to near)
104 root.getChildren().addAll(outsideFarClip, insideFarClip, insideRect, insideNearClip, outsideNearClip);
105
106 // Intentionally set depth buffer to false to reduce test complexity
107 testScene = new Scene(root, WIDTH, HEIGHT, false);
108
109 PerspectiveCamera camera = new PerspectiveCamera();
110 camera.setFieldOfView(FOV);
111 camera.setNearClip(NEAR);
112 camera.setFarClip(FAR);
113 testScene.setCamera(camera);
114
115 testStage.setScene(testScene);
116 testStage.show();
117 });
118 waitFirstFrame();
119 runAndWait(() -> {
120
121 if (!Platform.isSupported(ConditionalFeature.SCENE3D)) {
122 System.out.println("*************************************************************");
123 System.out.println("* Platform isn't SCENE3D capable, skipping 3D test. *");
124 System.out.println("*************************************************************");
125 return;
126 }
127
128 Color color;
129 // Verify Near Clip
130 color = getColor(testScene, WIDTH / 2, HEIGHT / 2);
131 assertColorEquals(Color.BLUE, color, TOLERANCE);
132
133 // Verify Inside Rect
134 color = getColor(testScene, (WIDTH / 3), HEIGHT / 2);
135 assertColorEquals(Color.GREEN, color, TOLERANCE);
136
137 // Verify Far Clip
138 color = getColor(testScene, WIDTH / 5, HEIGHT / 2);
139 assertColorEquals(Color.RED, color, TOLERANCE);
140
141 // Verify Fill
142 color = getColor(testScene, WIDTH / 8, HEIGHT / 2);
143 assertColorEquals(Color.WHITE, color, TOLERANCE);
144 });
145 }
146
147 }