// draw 3D scene
public override void Draw3D(GraphicsDevice gd)
{
if (gd == null)
{
throw new ArgumentNullException("gd");
}
// clear background
gd.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.Black, 1, 0);
// draw background animation
screenManager.DrawBackground(gd);
// screen aspect
float aspect = (float)gd.Viewport.Width / (float)gd.Viewport.Height;
// camera position
Vector3 cameraPosition = new Vector3(0, 240, -800);
// view and projection matrices
Matrix view = Matrix.CreateLookAt(cameraPosition, Vector3.Zero, Vector3.Up);
Matrix projection =
Matrix.CreatePerspectiveFieldOfView(0.25f, aspect, 1, 1000);
Matrix viewProjection = view * projection;
// rotation matrix
Matrix rotation = Matrix.CreateRotationY(0.5f * elapsedTime);
// translation matrix
Matrix translation = Matrix.CreateTranslation(0, -40, 0);
// draw ship model
gameManager.DrawModel(gd, shipModel, RenderTechnique.NormalMapping,
cameraPosition, rotation, viewProjection, lights);
// draw pad model
gameManager.DrawModel(gd, padModel, RenderTechnique.NormalMapping,
cameraPosition, translation, viewProjection, lights);
// set additive blend with no glow (zero on alpha)
gd.DepthStencilState = DepthStencilState.DepthRead;
gd.BlendState = BlendState.AlphaBlend;
// disable glow (zero in alpha)
//gd.RenderState.SeparateAlphaBlendEnabled = true;
//gd.RenderState.AlphaBlendOperation = BlendFunction.Add;
//gd.RenderState.AlphaSourceBlend = Blend.Zero;
//gd.RenderState.AlphaDestinationBlend = Blend.Zero;
// draw pad halo model
gameManager.DrawModel(gd, padHaloModel, RenderTechnique.PlainMapping,
cameraPosition, translation, viewProjection, null);
// restore blend modes
gd.BlendState = BlendState.Opaque;
gd.DepthStencilState = DepthStencilState.Default;
}
public override void Draw3D(GraphicsDevice gd)
{
if (gd == null)
{
throw new ArgumentNullException("gd");
}
// clear background
gd.Clear(Color.Black);
// draw background animation
screenManager.DrawBackground(gd);
}
public override void Draw3D(GraphicsDevice gd)
{
if (gd == null)
{
throw new ArgumentNullException("gd");
}
// clear backgournd
gd.Clear(Color.Black);
// draw background animation
screenManager.DrawBackground(gd);
// screen aspect
float aspect = (float)gd.Viewport.Width / (float)gd.Viewport.Height;
// camera position
Vector3 cameraPosition = new Vector3(0, 240, -800);
// view and projection matrices
Matrix view = Matrix.CreateLookAt(cameraPosition, Vector3.Zero, Vector3.Up);
Matrix projection =
Matrix.CreatePerspectiveFieldOfView(0.25f, aspect, 1, 1000);
Matrix viewProjection = view * projection;
// translation matrix
Matrix transform = Matrix.CreateTranslation(0, -40, 0);
// if single player mode
if (gameManager.GameMode == GameMode.SinglePlayer)
{
// draw ship model
gameManager.DrawModel(gd, shipModels[selection[0]],
RenderTechnique.NormalMapping,
cameraPosition, rotation[0], viewProjection, lights);
// draw pad model
gameManager.DrawModel(gd, padModel,
RenderTechnique.NormalMapping,
cameraPosition, transform, viewProjection, lights);
// set additive blend
gd.DepthStencilState = DepthStencilState.DepthRead;
gd.BlendState = BlendState.Additive;
// disable glow (zero in alpha)
//gd.RenderState.SeparateAlphaBlendEnabled = true;
//gd.RenderState.AlphaBlendOperation = BlendFunction.Add;
//gd.RenderState.AlphaSourceBlend = Blend.Zero;
//gd.RenderState.AlphaDestinationBlend = Blend.Zero;
// draw pad halo model
gameManager.DrawModel(gd, padHaloModel, RenderTechnique.PlainMapping,
cameraPosition, transform, viewProjection, null);
// enable glow (alpha not zero)
//gd.RenderState.SeparateAlphaBlendEnabled = false;
gd.BlendState = BlendState.AlphaBlend;
// if not confirmed, draw animated selection circle
if (confirmed[0] == false)
{
transform = Matrix.CreateRotationY(elapsedTime);
float scale = 1.0f + 0.03f * (float)Math.Cos(elapsedTime * 7);
transform = transform * Matrix.CreateScale(scale);
transform.M42 = -10;
gameManager.DrawModel(gd, padSelectModel,
RenderTechnique.PlainMapping, cameraPosition, transform,
viewProjection, null);
}
// restore blend modes
gd.DepthStencilState = DepthStencilState.Default;
gd.BlendState = BlendState.Opaque;
}
else // if multi player mode
{
Matrix transform1 = rotation[0] * Matrix.CreateTranslation(90, 0, 0);
Matrix transform2 = rotation[1] * Matrix.CreateTranslation(-90, 0, 0);
// draw ship model for player 1
gameManager.DrawModel(gd, shipModels[selection[0]],
RenderTechnique.NormalMapping,
cameraPosition, transform1, viewProjection, lights);
// draw ship model for player 2
gameManager.DrawModel(gd, shipModels[selection[1]],
RenderTechnique.NormalMapping,
cameraPosition, transform2, viewProjection, lights);
// draw pad model for player 1
transform.M41 = 90;
gameManager.DrawModel(gd, padModel, RenderTechnique.NormalMapping,
cameraPosition, transform, viewProjection, lights);
// draw pad model for player 2
transform.M41 = -90;
gameManager.DrawModel(gd, padModel, RenderTechnique.NormalMapping,
cameraPosition, transform, viewProjection, lights);
// set additive blend
gd.DepthStencilState = DepthStencilState.DepthRead;
gd.BlendState = BlendState.Additive;
// disable glow (zero in alpha)
//gd.RenderState.SeparateAlphaBlendEnabled = true;
//gd.RenderState.AlphaBlendOperation = BlendFunction.Add;
//gd.RenderState.AlphaSourceBlend = Blend.Zero;
//gd.RenderState.AlphaDestinationBlend = Blend.Zero;
// draw pad halo model for player 1
transform.M41 = 90;
gameManager.DrawModel(gd, padHaloModel, RenderTechnique.NormalMapping,
cameraPosition, transform, viewProjection, null);
// draw pad halo model for player 2
transform.M41 = -90;
gameManager.DrawModel(gd, padHaloModel, RenderTechnique.NormalMapping,
cameraPosition, transform, viewProjection, null);
// enable glow (alpha not zero)
//gd.RenderState.SeparateAlphaBlendEnabled = false;
gd.BlendState = BlendState.AlphaBlend;
// if not confirmed, draw animated selection circle for player 1
if (confirmed[0] == false)
{
transform = Matrix.CreateRotationY(elapsedTime);
float scale = 0.9f + 0.03f * (float)Math.Cos(elapsedTime * 7);
transform = transform * Matrix.CreateScale(scale);
transform.M41 = 90;
transform.M42 = -10;
gameManager.DrawModel(gd, padSelectModel,
RenderTechnique.PlainMapping, cameraPosition, transform,
viewProjection, null);
}
// if not confirmed, draw animated selection circle for player 2
if (confirmed[1] == false)
{
transform = Matrix.CreateRotationY(elapsedTime);
float scale = 0.9f + 0.03f * (float)Math.Cos(elapsedTime * 7);
transform = transform * Matrix.CreateScale(scale);
transform.M41 = -90;
transform.M42 = -10;
gameManager.DrawModel(gd, padSelectModel,
RenderTechnique.PlainMapping, cameraPosition, transform,
viewProjection, null);
}
// restore blend modes
gd.DepthStencilState = DepthStencilState.Default;
gd.BlendState = BlendState.Opaque;
}
}