/// <summary>
/// Initializes the billboard
/// </summary>
private void InitializeBillboard()
{
fBillboard = new DynamicBillboard(GraphicsDevice);
fBillboard.Mode = BillboardMode.Quad;
fBillboard.UseVertexBuffer = true;
const float DISTANCE = 1000f;
for (int x = -4; x <= 4; x++)
{
for (int y = -4; y <= 4; y++)
{
for (int z = -4; z <= 4; z++)
{
fBillboard.AddObject(
new Vector3(DISTANCE * x, DISTANCE * y, DISTANCE * z), Color.White, 400f);
}
}
}
}
/// <summary>
/// Draw particles
/// </summary>
private void RenderParticles()
{
Dictionary <Texture2D, DynamicBillboard> billboards = new Dictionary <Texture2D, DynamicBillboard>();
foreach (Particle particle in fParticles)
{
Texture2D texture = particle.Texture;
if (texture == null)
{
SetParticleTexture(particle);
texture = particle.Texture;
}
if (!billboards.ContainsKey(texture))
{
billboards.Add(texture, new DynamicBillboard(GraphicsDevice));
}
DynamicBillboard billboard = billboards[texture];
billboard.AddObject(particle.Position, Color.White, particle.Size);
}
//--------------------
GraphicsDevice.BlendState = fBlendState;
GraphicsDevice.DepthStencilState = DepthStencilState.None;
Matrix vp = fCamera.Camera.ViewMatrix * fCamera.Camera.ProjectionMatrix;
fShader.Parameters["world"].SetValue(fCamera.Camera.WorldMatrix);
fShader.Parameters["vp"].SetValue(vp);
int i = 0;
foreach (KeyValuePair <Texture2D, DynamicBillboard> kvp in billboards)
{
fShader.Parameters["particleTexture"].SetValue(kvp.Key);
for (int ps = 0; ps < fShader.CurrentTechnique.Passes.Count; ps++)
{
fShader.CurrentTechnique.Passes[ps].Apply();
kvp.Value.Render();
}
i++;
}
//--------------------
}
private void InitBillboard()
{
fBillboardChanged = false;
if (fBillboard == null)
{
fBillboard = new DynamicBillboard(GraphicsDevice);
}
else
{
fBillboard.Clear();
}
foreach (MyPoint point in fPoints)
{
Color color = Color.White;
Vector3 direction = point.Direction;
int r = (byte)(128 + 127 * direction.X);
int g = (byte)(128 + 127 * direction.Y);
int b = (byte)(128 + 127 * direction.Z);
color = new Color(r, g, b, 255);
fBillboard.AddObject(point.Position, color, point.Size);
}
}