tasks a-s

Task/OpenGL/Java/opengl.java

@@ -0,0 +1,57 @@
+import org.lwjgl.LWJGLException;
+import org.lwjgl.opengl.Display;
+import org.lwjgl.opengl.DisplayMode;
+import static org.lwjgl.opengl.GL11.*;
+
+
+public class OpenGlExample {
+
+	public void run() throws LWJGLException {
+		Display.setDisplayMode(new DisplayMode(640, 480));
+		Display.create();
+		
+		glMatrixMode(GL_PROJECTION);
+		glLoadIdentity();
+		glOrtho(-30, 30, -30, 30, -30, 30);
+		glMatrixMode(GL_MODELVIEW);
+		
+		while(!Display.isCloseRequested()) {
+			render();
+			
+			Display.update();
+		}
+		
+		Display.destroy();
+	}
+	
+	public void render() {
+		
+		glClearColor(0.3f, 0.3f, 0.3f, 0.0f);
+		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+		
+		glShadeModel(GL_SMOOTH);
+		
+		glLoadIdentity();
+		glTranslatef(-15.0f, -15.0f, 0.0f);
+		
+		glBegin(GL_TRIANGLES);
+		glColor3f(1.0f, 0.0f, 0.0f);
+		glVertex2f(0.0f, 0.0f);
+		glColor3f(0.0f, 1.0f, 0.0f);
+		glVertex2f(30f, 0.0f);
+		glColor3f(0.0f, 0.0f, 1.0f);
+		glVertex2f(0.0f, 30.0f);
+		glEnd();
+		
+	}
+	
+	public static void main(String[] args) {
+		OpenGlExample openGlExmpl = new OpenGlExample();
+		try {
+			openGlExmpl.run();
+		} catch(LWJGLException e) {
+			System.err.println(e);
+		}
+	}
+	
+}