/// Recursivly raytrace to get the color resulting from the refracted
/// light component for the specified collisionPoint.
private Color RefractionColor(
V3 incidentVec, V3 collisionPoint, V2 collisionUV,
Object3D collidedObj, int depth
)
{
if (!collidedObj.Material.IsTransparent())
{
return(Color.Black);
}
V3 normal = collidedObj.Normal(collisionPoint, collisionUV);
Ray refractionRay = new Ray(
origin: collisionPoint,
direction: incidentVec.RefractedVector(
normalVec: normal,
n1: Scene.RefractiveIndex,
n2: collidedObj.Material.RefractiveIndex
),
originObject: null
);
Color refractionColor = Raytrace(refractionRay, depth - 1);
if (refractionColor == null)
{
return(Color.Black);
}
return(collidedObj.Material.Transparency * refractionColor);
}
/// Recursivly raytrace to get the color resulting from the refracted
/// light component for the specified collisionPoint.
private Color RefractionColor(
V3 incidentVec, V3 collisionPoint, V2 collisionUV,
Object3D collidedObj, int depth
)
{
if (!collidedObj.Material.IsTransparent()) { return Color.Black; }
V3 normal = collidedObj.Normal(collisionPoint, collisionUV);
Ray refractionRay = new Ray(
origin: collisionPoint,
direction: incidentVec.RefractedVector(
normalVec: normal,
n1: Scene.RefractiveIndex,
n2: collidedObj.Material.RefractiveIndex
),
originObject: null
);
Color refractionColor = Raytrace(refractionRay, depth - 1);
if (refractionColor == null) { return Color.Black; }
return collidedObj.Material.Transparency * refractionColor;
}