Data commit

Task/OpenGL/D/opengl.d

@@ -0,0 +1,32 @@
+module opengl_sample; // file name + directory
+import dglut.core, dglut.window, dglut.opengl;
+
+void main() {
+  with (new Canvas) {
+    setName("Triangle");
+    map;
+
+    onResize = (Canvas self) { // A delegate literal that takes a parameter.
+      with (self) glViewport(0, 0, width, height);
+      MatrixMode.Projection.Identity; // For functions without parameters, the () can be omitted.
+      glOrtho(-30, 30, -30, 30, -30, 30);
+      MatrixMode.Modelview;
+    };
+
+    onDisplay=(Canvas self) {
+      scope(exit) self.swap; // Scope guards ease exception-safe programming
+      glClearColor(0.3f, 0.3f, 0.3f, 0f);
+      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+      glLoadIdentity;
+      // A convenience wrapper around glTranslatef. Supports numbers, arrays and vectors.
+      Translate(-15, -15, 0);
+      // This is a delegate literal as well. Triangles is a wrapper around glBegin and glEnd.
+      Triangles = {
+        Color(1f, 0f, 0f); Vertex(0, 0);
+        Color(0f, 1f, 0f); Vertex(30, 0);
+        Color(0f, 0f, 1f); Vertex(0, 30);
+      };
+    };
+  }
+  loop;
+}