public OutputData RunBasic()
{
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
float outX = x * (0.1f / 1000.0f);
float outY = y * (0.1f / 1000.0f);
Ray ray = new Ray(new Vector3(x * 0.1f, y * 0.1f, 0.1f), new Vector3(x *0.1f, y*0.1f, 1000.0f));
HashSet<RayCollision> rcs = new HashSet<RayCollision>();
foreach (ILightableObject o in scene.Objects)
{
RayCollision rc = o.RayCollision(ray);
if (rc.IsCollision)
{
rcs.Add(rc);
}
}
if (rcs.Count == 0)
{
output[x, y] = new Vector3(0, 0, 0);
continue;
}
RayCollision closestRay = (from RayCollision r in rcs
orderby Vector3.Distance(r.Position, ray.Start) ascending
select r).First();
output[x, y] = TestLighting(closestRay.Position, closestRay.Obj.CalculateNormal(closestRay.Position), new Vector3(320, 320, -400.0f), closestRay.Obj.Color);
}
}
return output;
}
private Vector3 TestLighting(Vector3 position, Vector3 normal, Vector3 lightPos, Vector3 color)
{
Vector3 litColor = ((position - lightPos).Normalize() * normal) * color;
Ray shadowRay = new Ray(position, lightPos);
foreach (ILightableObject o in scene.Objects)
{
RayCollision rc = o.RayCollision(shadowRay);
if (rc.IsCollision)
{
return new Vector3(1,0,0);
}
}
return litColor;
}