public Camera(Camera camera, Vec3 movement, Vec3 turn)
{
this.width = camera.width;
this.height = camera.height;
this.maxBounces = camera.maxBounces;
Vector4 temp = camera.lookAt - camera.origin;
if (turn.y != 0)
{
temp += Vector4.Transform(temp, Matrix4x4.CreateFromAxisAngle(Vec3.cross(Vec3.cross(camera.up, (camera.lookAt - camera.origin)), (camera.lookAt - camera.origin)), (float)turn.y));
}
if (turn.x != 0)
{
temp += Vector4.Transform(temp, Matrix4x4.CreateFromAxisAngle(Vec3.cross(camera.up, (camera.lookAt - camera.origin)), (float)turn.x));
}
lookAt = camera.origin + Vec3.unitVector(temp);
this.origin = camera.origin + movement;
this.lookAt += movement;
this.up = camera.up;
axis = OrthoNormalBasis.fromZY(Vec3.unitVector(lookAt - origin), up);
aspectRatio = ((float)width / (float)height);
cameraPlaneDist = 1.0f / XMath.Tan(camera.verticalFov * XMath.PI / 360.0f);
this.verticalFov = camera.verticalFov;
reciprocalHeight = 1.0f / height;
reciprocalWidth = 1.0f / width;
}
public Camera(Vec3 origin, Vec3 lookAt, Vec3 up, int width, int height, int maxBounces, float verticalFov)
{
this.width = new SpecializedValue <int>(width);
this.height = new SpecializedValue <int>(height);
this.maxBounces = new SpecializedValue <int>(maxBounces);
this.verticalFov = verticalFov;
this.origin = origin;
this.lookAt = lookAt;
this.up = up;
axis = OrthoNormalBasis.fromZY(Vec3.unitVector(lookAt - origin), up);
aspectRatio = ((float)width / (float)height);
cameraPlaneDist = 1.0f / XMath.Tan(verticalFov * XMath.PI / 360.0f);
reciprocalHeight = 1.0f / height;
reciprocalWidth = 1.0f / width;
}
