/// <summary>Renders a series of particles</summary>
/// <param name="particles">Particles that will be rendered</param>
/// <param name="primitiveBatch">
/// Primitive batch that will receive the vertices generated by the particles
/// </param>
public void Render(
ArraySegment <ParticleType> particles,
PrimitiveBatch <ParticleType> primitiveBatch
)
{
primitiveBatch.Draw(
particles.Array, particles.Offset, particles.Count,
PrimitiveType.PointList,
this.drawContext
);
}
public static void Draw(VoxelEngine.Primitives.GeometricPrimitive primitive)
{
primitive.Update();
if (primitive is VoxelChunk)
{
batch.Draw(PrimitiveType.TriangleList, primitive.VerticeArray);
}
else
{
batch.DrawIndexed(PrimitiveType.TriangleList, primitive.IndiceArray, primitive.VerticeArray);
}
}
/// <summary>Renders a series of particles</summary>
/// <param name="particles">Particles that will be rendered</param>
/// <param name="primitiveBatch">
/// Primitive batch that will receive the vertices generated by the particles
/// </param>
public void Render(
ArraySegment <ParticleType> particles,
PrimitiveBatch <ParticleType> primitiveBatch
)
{
Vector3 cameraPosition = this.Camera.Translation;
Vector3 cameraUp = this.Camera.Up;
Vector3 cameraForward = this.Camera.Forward;
Matrix billboard;
ParticleType tl, tr, bl, br;
int end = particles.Offset + particles.Count;
for (int index = particles.Offset; index < end; ++index)
{
tl = particles.Array[index];
tr = tl;
bl = tl;
br = tl;
Vector3 position;
this.accessor.GetPosition(ref tl, out position);
Matrix.CreateBillboard(
ref position, ref cameraPosition, ref cameraUp, cameraForward, out billboard
);
Vector3 corner;
corner.X = position.X + billboard.M11 + billboard.M21;
corner.Y = position.Y + billboard.M12 + billboard.M22;
corner.Z = position.Z + billboard.M13 + billboard.M23;
this.accessor.SetPosition(ref tl, ref corner);
corner.X = position.X - billboard.M11 + billboard.M21;
corner.Y = position.Y - billboard.M12 + billboard.M22;
corner.Z = position.Z - billboard.M13 + billboard.M23;
this.accessor.SetPosition(ref tr, ref corner);
corner.X = position.X + billboard.M11 - billboard.M21;
corner.Y = position.Y + billboard.M12 - billboard.M22;
corner.Z = position.Z + billboard.M13 - billboard.M23;
this.accessor.SetPosition(ref bl, ref corner);
corner.X = position.X - billboard.M11 - billboard.M21;
corner.Y = position.Y - billboard.M12 - billboard.M22;
corner.Z = position.Z - billboard.M13 - billboard.M23;
this.accessor.SetPosition(ref br, ref corner);
}
primitiveBatch.Draw(
particles.Array, particles.Offset, particles.Count,
PrimitiveType.PointList,
this.drawContext
);
}
public void Draw(TextureNode node, float width, float height)
{
for (int index = 0; index < 4; index++)
{
Vector2 vec = GameMode.ModePoints[index] * new Vector2(node.Destination.Width, node.Destination.Height);
Vector4 pos = Vector2.Transform(vec, node.Transform);
Vector3 pos2 = new Vector3(2 * pos.X / width - 1.0f, 2 * pos.Y / -height + 1.0f, 0);
vertices[index * 2].Position = pos2;
}
for (int index = 0; index < 4; index++)
{
vertices[index * 2 + 1].Position = (vertices[index * 2].Position + vertices[index * 2 + 2].Position) / 2;
}
vertices[8] = vertices[0];
effect.CurrentTechnique.Passes[0].Apply();
batch.Begin();
batch.Draw(PrimitiveType.LineStrip, vertices);
batch.End();
}
