protected override void Update()
{
base.Update();
this.constantBufferData.Model = Float4X4.RotationY(-degree);
degree += 1.0f;
}
public void SetProjectionParameters(float minimumFieldOfView, float aspectRatio, float nearPlane, float farPlane)
{
float minScale = 1.0f / (float)Math.Tan(minimumFieldOfView * BasicMath.PI / 360.0f);
float xScale = 1.0f;
float yScale = 1.0f;
if (aspectRatio < 1.0f)
{
xScale = minScale;
yScale = minScale * aspectRatio;
}
else
{
xScale = minScale / aspectRatio;
yScale = minScale;
}
float zScale = farPlane / (farPlane - nearPlane);
this.projection = new Float4X4(
xScale, 0.0f, 0.0f, 0.0f,
0.0f, yScale, 0.0f, 0.0f,
0.0f, 0.0f, -zScale, -nearPlane * zScale,
0.0f, 0.0f, -1.0f, 0.0f
);
}
public void Update(ITimer timer)
{
this.constantBufferData.Model = Float4X4.RotationY((float)(-(timer?.TotalSeconds ?? 0.0) * 60.0f));
this.camera.SetViewParameters(new Float3(0, 1.0f, 2.0f), new Float3(0, 0, 0), new Float3(0, 1, 0));
this.constantBufferData.View = this.camera.GetViewMatrix();
this.deviceResources.D3DContext.UpdateSubresource(this.constantBuffer, 0, null, this.constantBufferData, 0, 0);
}
public void SetViewParameters(Float3 eyePosition, Float3 lookPosition, Float3 up)
{
this.position = eyePosition;
this.direction = (lookPosition - eyePosition).Normalize();
Float3 zAxis = -this.direction;
Float3 xAxis = Float3.Cross(up, zAxis).Normalize();
Float3 yAxis = Float3.Cross(zAxis, xAxis);
float xOffset = -Float3.Dot(xAxis, this.position);
float yOffset = -Float3.Dot(yAxis, this.position);
float zOffset = -Float3.Dot(zAxis, this.position);
this.view = new Float4X4(
xAxis.X, xAxis.Y, xAxis.Z, xOffset,
yAxis.X, yAxis.Y, yAxis.Z, yOffset,
zAxis.X, zAxis.Y, zAxis.Z, zOffset,
0.0f, 0.0f, 0.0f, 1.0f
);
}
public void Update(ITimer timer)
{
this.constantBufferData.Model = Float4X4.RotationY(-this.degree);
this.degree += 1.0f;
}
