how to make this blending effect with monogame ?
this is my initilize and drawing methods
protected override void Initialize()
{
instance = this;
spriteBatch = new SpriteBatch(GraphicsDevice);
basicEffect = new BasicEffect(GraphicsDevice);
blendState = new BlendState();
this.graphicsDevice = GraphicsDevice;
basicEffect.EnableDefaultLighting();
basicEffect.LightingEnabled = true;
basicEffect.DiffuseColor = Color.White.ToVector3();
basicEffect.DirectionalLight0.Enabled = true;
basicEffect.DirectionalLight0.DiffuseColor = Color.Yellow.ToVector3();
basicEffect.AmbientLightColor = Color.Red.ToVector3();
basicEffect.DirectionalLight0.Direction = new Vector3(1, 1, 1);
GraphicsDevice.BlendState = BlendState.AlphaBlend;
blendState.AlphaBlendFunction = BlendFunction.Add;
blendState.AlphaSourceBlend = Blend.One;
blendState.AlphaDestinationBlend = Blend.InverseSourceAlpha;
basicEffect.CurrentTechnique.Passes[0].Apply();
Bones = new List<Bone>();
base.Initialize();
}
public void DrawOctahedralBone(Vector3 headPos, Vector3 tailPos , Color color)
{
Vector3 direction = tailPos - headPos;
float length = direction.Length();
Vector3 unitDirection = direction / length;
Vector3 right = Vector3.Cross(unitDirection, Vector3.Up);
if (right.Length() < 0.001f)
{
right = Vector3.Cross(unitDirection, Vector3.Right);
}
right.Normalize();
Vector3 up = Vector3.Cross(unitDirection, right);
up.Normalize();
float bodyDistance = length * 0.1f;
Vector3 bodyUp = up * bodyDistance;
Vector3 bodyRight = right * bodyDistance;
Vector3 bodyCenter = headPos + (unitDirection * length * 0.1f);
Vector3[] vertices = new Vector3[6];
vertices[0] = headPos;
vertices[1] = tailPos;
vertices[2] = bodyCenter + bodyUp + bodyRight;
vertices[3] = bodyCenter + bodyUp - bodyRight;
vertices[4] = bodyCenter - bodyUp + bodyRight;
vertices[5] = bodyCenter - bodyUp - bodyRight;
short[] indices = new short[] {
2, 0, 3,
2, 0, 4,
3, 0, 5,
5, 0, 4,
2, 1, 3,
2, 1, 4,
3, 1, 5,
5, 1, 4
};
GraphicsDevice.BlendState = new BlendState
{
AlphaBlendFunction = BlendFunction.Add,
AlphaSourceBlend = Blend.SourceAlpha,
AlphaDestinationBlend = Blend.InverseSourceAlpha
};
Color colorWithOpacity = new Color(color.R, color.G, color.B, (byte)(255 * 0.6f));
VertexPositionColor[] vertexArray = new VertexPositionColor[6];
for (int i = 0; i < 6; i++)
{
vertexArray[i] = new VertexPositionColor(vertices[i], colorWithOpacity);
}
RasterizerState rasterizerState = new RasterizerState();
if (isOktaWireDisEnabled)
{
rasterizerState.FillMode = FillMode.WireFrame;
}
rasterizerState.CullMode = CullMode.None;
GraphicsDevice.RasterizerState = rasterizerState;
GraphicsDevice.BlendState = blendState;
basicEffect.World = Matrix.CreateWorld(headPos, unitDirection, up);
basicEffect.View = ViewMatrix;
basicEffect.Projection = ProjectionMatrix;
GraphicsDevice.DrawUserIndexedPrimitives<VertexPositionColor>(PrimitiveType.TriangleList, vertexArray, 0, 6, indices, 0, 8);
}
protected override void Draw()
{
base.Draw();
GraphicsDevice.Clear(MBlue);
Editor.spriteBatch.Begin(SpriteSortMode.FrontToBack, BlendState.AlphaBlend);
GraphicsDevice.BlendState = BlendState.AlphaBlend;
DrawAxes();
BoneDisplay();
Editor.spriteBatch.End();
}
BoneDisplay(); is waht initiates DrawOctahedralBone
but what i get
