private LightTechnique_Common GetSpotLight(Models.Elements.Light light)
{
return(new LightTechnique_Common()
{
Spot = new LightTechnique_CommonSpot()
{
Color = new TargetableFloat3()
{
Value = string.Format(CultureInfo.InvariantCulture, "{0} {1} {2}", light.Color.R / 255f, light.Color.G / 255f, light.Color.B / 255f)
},
Constant_Attenuation = new TargetableFloat()
{
Value = light.Length
},
Linear_Attenuation = new TargetableFloat()
{
Value = light.Ambience
},
Quadratic_Attenuation = new TargetableFloat()
{
Value = 0
},
Falloff_Angle = new TargetableFloat()
{
Value = light.Width * 180.0 / Math.PI
}
}
});
}
private LightTechnique_Common GetPointLight(Models.Elements.Light light)
{
return(new LightTechnique_Common()
{
Point = new LightTechnique_CommonPoint()
{
Color = new TargetableFloat3()
{
Value = string.Format(CultureInfo.InvariantCulture, "{0} {1} {2}", light.Color.R / 255f, light.Color.G / 255f, light.Color.B / 255f)
},
Constant_Attenuation = new TargetableFloat()
{
Value = light.Length
},
Linear_Attenuation = new TargetableFloat()
{
Value = 0
},
Quadratic_Attenuation = new TargetableFloat()
{
Value = 0
}
}
});
}
private Light GetLight(Models.Elements.Light light, int i)
{
return(new Light()
{
Id = $"Light-{i}",
Name = $"Light-{i}",
Technique_Common = i != 4 ? GetSpotLight(light) : GetPointLight(light)
});
}
private Node GetLightNode(Models.Elements.Light light, int i)
{
var id = $"Light-{i}";
var node = new Node()
{
Id = id,
Name = id
};
var rotationZdeg = Math.PI / 180.0 * (light.Direction * 360.0 / 255.0);
var rotationYdeg = Math.PI / 180.0 * (-90 - 180 / Math.PI * light.Tilt);
var rotationZcos = (float)Math.Cos(rotationZdeg);
var rotationZsin = (float)Math.Sin(rotationZdeg);
var rotationZ = new Matrix4x4(rotationZcos, -rotationZsin, 0, 0,
rotationZsin, rotationZcos, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1);
var rotationYcos = (float)Math.Cos(rotationYdeg);
var rotationYsin = (float)Math.Sin(rotationYdeg);
var rotationY = new Matrix4x4(rotationYcos, 0, rotationYsin, 0,
0, 1, 0, 0,
-rotationYsin, 0, rotationYcos, 0,
0, 0, 0, 1);
var rotation = rotationZ * rotationY;
var transformMatrix = rotation;
transformMatrix.M14 = light.X;
transformMatrix.M24 = light.Y;
transformMatrix.M34 = light.Z;
node.Matrix.Add(new Matrix()
{
Value = string.Format(CultureInfo.InvariantCulture, "{0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10} {11} {12} {13} {14} {15}", transformMatrix.M11,
transformMatrix.M12,
transformMatrix.M13,
transformMatrix.M14,
transformMatrix.M21,
transformMatrix.M22,
transformMatrix.M23,
transformMatrix.M24,
transformMatrix.M31,
transformMatrix.M32,
transformMatrix.M33,
transformMatrix.M34,
transformMatrix.M41,
transformMatrix.M42,
transformMatrix.M43,
transformMatrix.M44)
});
var instanceGeometry = new Instance_Light()
{
Url = $"#{id}"
};
node.Instance_Light.Add(instanceGeometry);
return(node);
}
