public bool Initialize(SystemConfiguration configuration, IntPtr windowHandle)
{
try
{
// Create the Direct3D object.
D3D = new DX11();
// Initialize the Direct3D object.
if (!D3D.Initialize(configuration, windowHandle))
{
MessageBox.Show("Could not initialize Direct3D", "Error", MessageBoxButtons.OK);
return(false);
}
// Create the camera object
Camera = new Camera();
// Initialize a base view matrix the camera for 2D user interface rendering.
Camera.SetPosition(0, 0, -1);
Camera.Render();
var baseViewMatrix = Camera.ViewMatrix;
// Create the text object.
Text = new Text();
if (!Text.Initialize(D3D.Device, D3D.DeviceContext, windowHandle, configuration.Width, configuration.Height, baseViewMatrix))
{
MessageBox.Show("Could not initialize the text object", "Error", MessageBoxButtons.OK);
return(false);
}
// Create the model class.
Model = new Model();
// Initialize the model object.
if (!Model.Initialize(D3D.Device, "sphere.txt", new[] { "stone01.dds", "light01.dds" }))
{
MessageBox.Show("Could not initialize the model object", "Error", MessageBoxButtons.OK);
return(false);
}
// Create the light shader object.
LightMapShader = new LightMapShader();
// Initialize the light shader object.
if (!LightMapShader.Initialize(D3D.Device, windowHandle))
{
MessageBox.Show("Could not initialize the light shader", "Error", MessageBoxButtons.OK);
return(false);
}
// Create the light object.
Light = new Light();
// Initialize the light object.
Light.SetAmbientColor(0.15f, 0.15f, 0.15f, 1.0f);
Light.SetDiffuseColor(1, 0, 0, 1f);
Light.SetDirection(1, 0, 1);
Light.SetSpecularColor(0, 1, 1, 1);
Light.SetSpecularPower(32);
// Create the model list object.
ModelList = new ModelList();
// Initialize the model list object.
if (!ModelList.Initialize(25))
{
MessageBox.Show("Could not initialize the model list object", "Error", MessageBoxButtons.OK);
return(false);
}
// Create the frustum object.
Frustum = new Frustum();
return(true);
}
catch (Exception ex)
{
MessageBox.Show("Could not initialize Direct3D\nError is '" + ex.Message + "'");
return(false);
}
}
public bool Render()
{
// Clear the buffer to begin the scene.
D3D.BeginScene(0f, 0f, 0f, 1f);
// Generate the view matrix based on the camera position.
Camera.Render();
// Get the world, view, and projection matrices from camera and d3d objects.
var viewMatrix = Camera.ViewMatrix;
var worldMatrix = D3D.WorldMatrix;
var projectionMatrix = D3D.ProjectionMatrix;
var orthoMatrix = D3D.OrthoMatrix;
// Construct the frustum.
Frustum.ConstructFrustum(SystemConfiguration.ScreenDepth, projectionMatrix, viewMatrix);
// Initialize the count of the models that have been rendered.
var renderCount = 0;
Vector3 position;
Vector4 color;
// Go through all models and render them only if they can seen by the camera view.
for (int index = 0; index < ModelList.ModelCount; index++)
{
// Get the position and color of the sphere model at this index.
ModelList.GetData(index, out position, out color);
// Set the radius of the sphere to 1.0 since this is already known.
var radius = 1.0f;
// Check if the sphere model is in the view frustum.
var renderModel = Frustum.CheckSphere(position, radius);
// If it can be seen then render it, if not skip this model and check the next sphere.
if (renderModel)
{
// Move the model to the location it should be rendered at.
worldMatrix = Matrix.Translation(position);
// Put the model vertex and index buffer on the graphics pipeline to prepare them for drawing.
Model.Render(D3D.DeviceContext);
// Render the model using the color shader.
if (!LightMapShader.Render(D3D.DeviceContext, Model.IndexCount, worldMatrix, viewMatrix, projectionMatrix, Model.TextureCollection.Select(item => item.TextureResource).ToArray()))
{
return(false);
}
// Reset to the original world matrix.
worldMatrix = D3D.WorldMatrix;
// Since this model was rendered then increase the count for this frame.
renderCount++;
}
}
// Set the number of the models that was actually rendered this frame.
if (!Text.SetRenderCount(renderCount, D3D.DeviceContext))
{
return(false);
}
// Turn off the Z buffer to begin all 2D rendering.
D3D.TurnZBufferOff();
// Turn on the alpha blending before rendering the text.
D3D.TurnOnAlphaBlending();
// Render the text string.
if (!Text.Render(D3D.DeviceContext, worldMatrix, orthoMatrix))
{
return(false);
}
// Turn off the alpha blending before rendering the text.
D3D.TurnOffAlphaBlending();
// Turn on the Z buffer to begin all 2D rendering.
D3D.TurnZBufferOn();
// Present the rendered scene to the screen.
D3D.EndScene();
return(true);
}
