/// <summary>
/// Sets the uniform value.
/// </summary>
/// <param name="name">The uniform name.</param>
/// <param name="value">The uniform value.</param>
/// <returns>Reference to self for method call chaining.</returns>
IShaderUniform IShaderUniform.SetUniform(string name, Quaternion value)
{
int location;
if (this.uniformLocations.TryGetValue(name, out location))
{
gl.Uniform4(location, value.X, value.Y, value.Z, value.W);
}
return this;
}
/// <summary>
/// Accumulate a rotation to this ModelMatrix.
/// </summary>
/// <param name="q">
/// A <see cref="Quaternion"/> representing the rotation.
/// </param>
public void Rotate(Quaternion q)
{
if (q == null)
throw new ArgumentNullException("q");
Set((Matrix4x4)this * (Matrix4x4)q);
}
/// <summary>
/// Create a new camera object with a certain eye position and orientation.
/// </summary>
/// <param name="position">The eye position of the camera.</param>
/// <param name="orientation">The orientation of the camera.</param>
public Camera(Vector3 position, Quaternion orientation)
{
this.Position = position;
this.Orientation = orientation;
}
/// <summary>
/// Rotates the camera by a supplied rotation quaternion.
/// </summary>
/// <param name="rotation">The amount to rotate the camera by.</param>
public void Rotate(Quaternion rotation)
{
Orientation = rotation * orientation;
}
/// <summary>
/// Quaternion constructor from euler rotation axis and rotation angle.
/// </summary>
/// <param name="other">
/// A <see cref="Quaternion"/> representing the rotation axis.
/// </param>
public Quaternion(Quaternion other)
{
if (other == null)
throw new ArgumentNullException("other");
// Set the default rotation axis
mDefaultVector = other.mDefaultVector;
// Copy quaternion fields
mVector = other.mVector;
mCosAngle = other.mCosAngle;
}
private static void OnKeyboardDown(byte key, int x, int y)
{
if (key == 'w') moveforward = true;
if (key == 's') movebackward = true;
if (key == 'a') moveleft = true;
if (key == 'd') moveright = true;
if (key == ' ') moveup = true;
if (Glut.glutGetModifiers() == Glut.GLUT_ACTIVE_SHIFT) movedown = true;
if (key == 'v')
{
testViewMatrix = camera.ViewMatrix;
testPos = camera.Position;
testOrientation = camera.Orientation;
}
if (key == 'f') wireframe = !wireframe;
if (key == 'c')
{
culling = !culling;
if (culling)
Gl.Enable(EnableCap.CullFace);
else
Gl.Disable(EnableCap.CullFace);
}
if (key == 27) Glut.glutLeaveMainLoop();
}