// tick for OpenGL rendering code
public void RenderGL()
{
// measure frame duration
float frameDuration = timer.ElapsedMilliseconds;
timer.Reset();
timer.Start();
// update rotation
Tpot.angle.Y += 0.001f * frameDuration;
if (Tpot.angle.Y > 2 * PI)
{
Tpot.angle.Y -= 2 * PI;
}
Tpot2.angle.X += 0.001f * frameDuration;
if (Tpot2.angle.X > 2 * PI)
{
Tpot2.angle.X -= 2 * PI;
}
Tpot3.angle.Y += 0.001f * frameDuration;
if (Tpot3.angle.Y > 2 * PI)
{
Tpot3.angle.Y -= 2 * PI;
}
Tfloor.angle.Y += 0.001f * frameDuration;
if (Tfloor.angle.Y > 2 * PI)
{
Tfloor.angle.Y -= 2 * PI;
}
Tfloor3.angle.X += 0.001f * frameDuration;
if (Tfloor3.angle.X > 2 * PI)
{
Tfloor3.angle.X -= 2 * PI;
}
// render scene
sceneGraph.Render();
}
// tick for OpenGL rendering code
public void RenderGL()
{
// measure frame duration
float frameDuration = timer.ElapsedMilliseconds;
timer.Reset();
timer.Start();
// prepare matrix for vertex shader
float angle90degrees = PI / 2;
Vector3 cameraPos = new Vector3(0, 50f, 0);
int cameraID = GL.GetUniformLocation(shader.programID, "cameraPos");
GL.UseProgram(shader.programID);
GL.Uniform3(cameraID, cameraPos);
Matrix4 Tcar = Matrix4.CreateScale(0.5f) * Matrix4.CreateRotationY(10f) * Matrix4.CreateTranslation(new Vector3(0, 0, 0)) * Matrix4.CreateFromAxisAngle(new Vector3(0, 1, 0), 9 + 0) * Matrix4.CreateTranslation(new Vector3(0, 0, 0));
Matrix4 Tflag = Matrix4.CreateScale(0.08f) * Tcar * Matrix4.CreateTranslation(new Vector3(0, 2, 0));
Matrix4 toWorld = Tflag;
Matrix4 Tfloor = Matrix4.CreateScale(4.0f) * Matrix4.CreateFromAxisAngle(new Vector3(0, 1, 0), 0);
Matrix4 Tcamera = Matrix4.CreateTranslation(-cameraPos) * Matrix4.CreateFromAxisAngle(new Vector3(1, 0, 0), angle90degrees);
Matrix4 Tview = Matrix4.CreatePerspectiveFieldOfView(1.2f, 1.3f, .1f, 1000);
// defining the model view matrix for the mesh object
flag.modelViewMatrix = Tflag * Tcamera * Tview;
flag.toWorld = toWorld;
car.modelViewMatrix = Tcar * Tcamera * Tview;
car.toWorld = toWorld;
floor.modelViewMatrix = Tfloor * Tcamera * Tview;
floor.toWorld = toWorld;
SceneGraph floor_sg = new SceneGraph(floor);
floor_sg.pos = new Vector3(0, 0, 0);
floor_sg.rotation = a;
floor_sg.scale = new Vector3(4, 2, 2);
// update rotation
a += 0.0005f * frameDuration;
if (a > 2 * PI)
{
a -= 2 * PI;
}
b = a * a;
if (a > 6 * PI)
{
a -= 10 * PI;
}
if (useRenderTarget)
{
// enable render target
target.Bind();
// render scene via Scenegraph
floor_sg.Render(Tcamera * Tview);
// render scene to render target
/*
* flag.Render(shader, Tflag * Tcamera * Tview, toWorld, dark);
* car.Render( shader, Tcar*Tcamera*Tview, toWorld, silver);
* floor.Render( shader, Tfloor * Tcamera * Tview, toWorld, wood ); */
// render quad
target.Unbind();
quad.Render(postproc, target.GetTextureID());
}
else
{
// render scene via SceneGraph
floor_sg.Render(Tcamera);
// render scene directly to the
/*
* flag.Render(shader, Tflag * Tcamera * Tview, toWorld, dark);
* car.Render(shader, Tcar * Tcamera * Tview, toWorld, silver);
* floor.Render(shader, Tfloor * Tcamera * Tview, toWorld, wood); */
}
}