Scene3d SkyBox support, part 1

dlangui-msvc.visualdproj

@@ -787,6 +787,7 @@
       <File path="src\dlangui\graphics\scene\node.d" />
       <File path="src\dlangui\graphics\scene\objimport.d" />
       <File path="src\dlangui\graphics\scene\scene3d.d" />
+      <File path="src\dlangui\graphics\scene\skybox.d" />
       <File path="src\dlangui\graphics\scene\transform.d" />
      </Folder>
      <Folder name="xpm">

src/dlangui/graphics/scene/camera.d

@@ -18,12 +18,17 @@ class Camera : Node3d {
 
     protected bool _enabled;
 
+    protected float _far = 100;
+
     this(string ID = null) {
         super(ID);
         _enabled = true;
         setPerspective(4.0f, 3.0f, 45.0f, 0.1f, 100.0f);
     }
 
+    /// returns FAR range of camera
+    @property float farRange() { return _far; }
+
     /// returns true if camera is active (enabled)
     @property bool enabled() { return _enabled; }
 
@@ -75,12 +80,14 @@ class Camera : Node3d {
 
     /// set orthographic projection
     void setOrtho(float left, float right, float bottom, float top, float near, float far) {
+        _far = far;
         _projectionMatrix.setOrtho(left, right, bottom, top, near, far);
         _dirtyViewProjection = true;
     }
 
     /// set perspective projection
     void setPerspective(float width, float height, float fov, float near, float far) {
+        _far = far;
         _projectionMatrix.setPerspective(fov, width / height, near, far);
         _dirtyViewProjection = true;
     }

src/dlangui/graphics/scene/mesh.d

@@ -491,7 +491,7 @@ class Mesh : RefCountedObject {
     }
 
 
-    private void addQuad(ref vec3 v0, ref vec3 v1, ref vec3 v2, ref vec3 v3, ref vec4 color) {
+    void addQuad(ref vec3 v0, ref vec3 v1, ref vec3 v2, ref vec3 v3, ref vec4 color) {
         ushort startVertex = cast(ushort)vertexCount;
         if (hasElement(VertexElementType.NORMAL)) {
             vec3 normal = vec3.crossProduct((v1 - v0), (v3 - v0)).normalized;

src/dlangui/graphics/scene/node.d

@@ -92,6 +92,27 @@ class Node3d : Transform {
         destroy(_children.remove(index));
     }
 
+    /// remove and destroy child node (returns true if child is found and removed)
+    bool removeChild(Node3d child) {
+        int index = findChild(child);
+        if (index >= 0) {
+            removeChild(index);
+            return true;
+        }
+        return false;
+    }
+
+    /// find node index, returns -1 if not found
+    int findChild(Node3d node) {
+        if (node is null)
+            return -1;
+        for (int i = 0; i < childCount; i++) {
+            if (child(i) is node)
+                return i;
+        }
+        return -1;
+    }
+
     @property ref ObjectList!Node3d children() { return _children; }
 
     /// parent node

src/dlangui/graphics/scene/scene3d.d

@@ -7,6 +7,7 @@ import dlangui.core.types;
 
 import dlangui.core.math3d;
 import dlangui.graphics.scene.node;
+import dlangui.graphics.scene.skybox;
 
 /// Reference counted Scene3d object
 alias Scene3dRef = Ref!Scene3d;
@@ -19,12 +20,23 @@ class Scene3d : Node3d {
 
     protected vec3 _ambientColor;
     protected Camera _activeCamera;
+    protected SkyBox _skyBox;
 
     /// ambient light color
     @property vec3 ambientColor() { return _ambientColor; }
     /// set ambient light color
     @property void ambientColor(const ref vec3 v) { _ambientColor = v; }
 
+    this(string id = null) {
+        super(id);
+        _skyBox = new SkyBox(this);
+    }
+
+    ~this() {
+        destroy(_skyBox);
+    }
+
+    @property SkyBox skyBox() { return _skyBox; }
 
     /// active camera
     override @property Camera activeCamera() {
@@ -53,10 +65,19 @@ class Scene3d : Node3d {
     void drawScene(bool wireframe) {
         _wireframe = wireframe;
         updateAutoboundLights();
+        if (_skyBox.visible) {
+            if (_activeCamera) {
+                _skyBox.translation = _activeCamera.translation;
+                _skyBox.scaling = _activeCamera.farRange * 0.8;
+            }
+            sceneDrawVisitor(_skyBox);
+        }
         visit(this, &sceneDrawVisitor);
     }
 
     protected bool sceneDrawVisitor(Node3d node) {
+        if (!node.visible)
+            return false;
         if (!node.drawable.isNull)
             node.drawable.draw(node, _wireframe);
         return false;