liberty.framework.skybox.impl source code

1 /**
2  * Copyright:       Copyright (C) 2018 Gabriel Gheorghe, All Rights Reserved
3  * Authors:         $(Gabriel Gheorghe)
4  * License:         $(LINK2 https://www.gnu.org/licenses/gpl-3.0.txt, GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007)
5  * Source:          $(LINK2 https://github.com/GabyForceQ/LibertyEngine/blob/master/source/liberty/framework/skybox/impl.d)
6  * Documentation:
7  * Coverage:
8 **/
9 module liberty.framework.skybox.impl;
10 
11 import liberty.framework.skybox.vertex;
12 import liberty.graphics.shader.impl;
13 import liberty.material.impl;
14 import liberty.math.matrix;
15 import liberty.math.vector;
16 import liberty.model.impl;
17 import liberty.model.io;
18 import liberty.scene.entity;
19 import liberty.scene.meta;
20 
21 /**
22  *
23 **/
24 final class SkyBox : Entity {
25   mixin NodeBody;
26 
27   private {
28     Shader shader;
29   }
30 
31   /**
32    *
33   **/
34   this(string id) {
35     super(id);
36     register;
37 
38     shader = Shader
39       .getOrCreate("SkyBox", (shader) {
40         shader
41           .setViewMatrixEnabled(false)
42           .addGlobalRenderMethod((program) {
43             // Make it unreachable
44             Matrix4F newViewMatrix = scene.camera.viewMatrix;
45             newViewMatrix.c[0][3] = 0;
46             newViewMatrix.c[1][3] = 0;
47             newViewMatrix.c[2][3] = 0;
48 
49             program
50               .loadUniform("uFadeLowerLimit", 0.0f)
51               .loadUniform("uFadeUpperLimit", 30.0f)
52               .loadUniform("uFogColor", scene.world.getExpHeightFogColor)
53               .loadUniform("uViewMatrix", newViewMatrix);
54           });
55       });
56     
57     shader.registerEntity(this);
58     scene.shaderMap[shader.id] = shader;
59   }
60 
61   /**
62    *
63    * Returns reference to this so it can be used in a stream.
64   **/
65   typeof(this) build(Material material) {
66     model = new Model(ModelIO.loadRawModel(skyBoxVertices), [material]);
67     return this;
68   }
69 }
70 
71 private const float SIZE = 500.0f;
72 
73 private SkyBoxVertex[36] skyBoxVertices = [  
74   SkyBoxVertex(Vector3F(-SIZE,  SIZE, -SIZE)),
75   SkyBoxVertex(Vector3F(-SIZE, -SIZE, -SIZE)),
76   SkyBoxVertex(Vector3F( SIZE, -SIZE, -SIZE)),
77   SkyBoxVertex(Vector3F( SIZE, -SIZE, -SIZE)),
78   SkyBoxVertex(Vector3F( SIZE,  SIZE, -SIZE)),
79   SkyBoxVertex(Vector3F(-SIZE,  SIZE, -SIZE)),
80 
81   SkyBoxVertex(Vector3F(-SIZE, -SIZE,  SIZE)),
82   SkyBoxVertex(Vector3F(-SIZE, -SIZE, -SIZE)),
83   SkyBoxVertex(Vector3F(-SIZE,  SIZE, -SIZE)),
84   SkyBoxVertex(Vector3F(-SIZE,  SIZE, -SIZE)),
85   SkyBoxVertex(Vector3F(-SIZE,  SIZE,  SIZE)),
86   SkyBoxVertex(Vector3F(-SIZE, -SIZE,  SIZE)),
87 
88   SkyBoxVertex(Vector3F( SIZE, -SIZE, -SIZE)),
89   SkyBoxVertex(Vector3F( SIZE, -SIZE,  SIZE)),
90   SkyBoxVertex(Vector3F( SIZE,  SIZE,  SIZE)),
91   SkyBoxVertex(Vector3F( SIZE,  SIZE,  SIZE)),
92   SkyBoxVertex(Vector3F( SIZE,  SIZE, -SIZE)),
93   SkyBoxVertex(Vector3F( SIZE, -SIZE, -SIZE)),
94 
95   SkyBoxVertex(Vector3F(-SIZE, -SIZE,  SIZE)),
96   SkyBoxVertex(Vector3F(-SIZE,  SIZE,  SIZE)),
97   SkyBoxVertex(Vector3F( SIZE,  SIZE,  SIZE)),
98   SkyBoxVertex(Vector3F( SIZE,  SIZE,  SIZE)),
99   SkyBoxVertex(Vector3F( SIZE, -SIZE,  SIZE)),
100   SkyBoxVertex(Vector3F(-SIZE, -SIZE,  SIZE)),
101 
102   SkyBoxVertex(Vector3F(-SIZE,  SIZE, -SIZE)),
103   SkyBoxVertex(Vector3F( SIZE,  SIZE, -SIZE)),
104   SkyBoxVertex(Vector3F( SIZE,  SIZE,  SIZE)),
105   SkyBoxVertex(Vector3F( SIZE,  SIZE,  SIZE)),
106   SkyBoxVertex(Vector3F(-SIZE,  SIZE,  SIZE)),
107   SkyBoxVertex(Vector3F(-SIZE,  SIZE, -SIZE)),
108 
109   SkyBoxVertex(Vector3F(-SIZE, -SIZE, -SIZE)),
110   SkyBoxVertex(Vector3F(-SIZE, -SIZE,  SIZE)),
111   SkyBoxVertex(Vector3F( SIZE, -SIZE, -SIZE)),
112   SkyBoxVertex(Vector3F( SIZE, -SIZE, -SIZE)),
113   SkyBoxVertex(Vector3F(-SIZE, -SIZE,  SIZE)),
114   SkyBoxVertex(Vector3F( SIZE, -SIZE,  SIZE))
115 ];