public static float GetInterpolatedOcclusion(Vector3 position)
{
Profiler.BeginSample("Ambient Probes: GetInterpolatedOcclusion");
ProbeInterpolation data = GetInterpolationData(position);
if (!data.group)
{
return(1);
}
//If one of the other is null
if (data.dest == null && data.source != null)
{
return(data.source.occlusion);
}
if (data.source == null && data.dest != null)
{
return(data.dest.occlusion);
}
float occlusion = Mathf.Lerp(data.dest.occlusion, data.source.occlusion, data.dist01);
Profiler.EndSample();
return(occlusion);
}
/// <summary>
/// Return a struct with the nearest and 2nd nearest probe if the position is within any group's bounds
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public static ProbeInterpolation GetInterpolationData(Vector3 position)
{
ProbeInterpolation data = new ProbeInterpolation();
AmbientProbeGroup nearestGroup = GetNearestGroup(position);
if (!nearestGroup)
{
return(data);
}
data.group = nearestGroup;
data.source = GetNearestProbe(nearestGroup, position);
data.dest = GetNearestProbe(nearestGroup, position, data.source);
//Distance value can exceed 1, but this is fine, the lerp will still return the destination
if (data.source != null && data.dest != null)
{
data.dist01 = (data.dest.position - position).magnitude / (data.dest.position - data.source.position).magnitude;
}
data.dist01 = Mathf.Abs(data.dist01);
return(data);
}
/// <summary>
/// Front end function to get ambient color at any position in world-space
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public static Color GetInterpolatedColor(Vector3 position)
{
Profiler.BeginSample("Ambient Probes: GetInterpolatedColor");
ProbeInterpolation data = GetInterpolationData(position);
//if (!data.group) return RenderSettings.ambientSkyColor;
if (!data.group)
{
return(Color.white); //don't use the ambient sky color when multiplying to indirect light color. it'll ended up similar to multiplying itself making it more darker.
}
//If one of the other is null
if (data.dest == null && data.source != null)
{
return(data.source.color * data.source.occlusion);
}
if (data.source == null && data.dest != null)
{
return(data.dest.color * data.dest.occlusion);
}
//if (data.source == null && data.dest == null) return RenderSettings.ambientSkyColor;
if (data.source == null && data.dest == null)
{
return(Color.white); //don't use the ambient sky color when multiplying to indirect light color. it'll ended up similar to multiplying itself making it more darker.
}
Color src = data.source.overriden ? data.source.color : data.group.color;
if (data.source.global)
{
src = RenderSettings.ambientSkyColor;
}
Color dst = data.dest.overriden ? data.dest.color : data.group.color;
if (data.dest.global)
{
dst = RenderSettings.ambientSkyColor;
}
//Lerp
Color ambient = Color.Lerp(dst, src, data.dist01);
//float occlusion = Mathf.Lerp(data.dest.occlusion, data.source.occlusion, data.dist01);
Profiler.EndSample();
//return ambient * occlusion;
return(ambient);
}
/// <summary>
/// Front end function to get ambient color at any position in world-space
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public static Color GetInterpolatedColor(Vector3 position)
{
Profiler.BeginSample("Ambient Probes: GetInterpolatedColor");
ProbeInterpolation data = GetInterpolationData(position);
if (!data.group)
{
return(RenderSettings.ambientSkyColor);
}
//If one of the other is null
if (data.dest == null && data.source != null)
{
return(data.source.color * data.source.occlusion);
}
if (data.source == null && data.dest != null)
{
return(data.dest.color * data.dest.occlusion);
}
if (data.source == null && data.dest == null)
{
return(RenderSettings.ambientSkyColor);
}
Color src = data.source.overriden ? data.source.color : data.group.color;
if (data.source.global)
{
src = RenderSettings.ambientSkyColor;
}
Color dst = data.dest.overriden ? data.dest.color : data.group.color;
if (data.dest.global)
{
dst = RenderSettings.ambientSkyColor;
}
//Lerp
Color ambient = Color.Lerp(dst, src, data.dist01);
float occlusion = Mathf.Lerp(data.dest.occlusion, data.source.occlusion, data.dist01);
Profiler.EndSample();
return(ambient * occlusion);
}
