KeepersCompound
/
ThiefLightmapper
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Handle spotlight property

This commit is contained in:
Jarrod Doyle 2024-09-26 17:16:11 +01:00
parent 51e3a3a9e7
commit 2420bbef4f
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
1 changed files with 50 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
KeepersCompound.Lightmapper/Program.cs
View File

@ -16,6 +16,11 @@ class Program
public float innerRadius;
public float radius;
public float r2;
public bool spotlight;
public Vector3 spotlightDir;
public float spotlightInnerAngle;
public float spotlightOuterAngle;
}
static void Main(string[] args)
@ -104,16 +109,17 @@ class Program
{
position = brush.position,
color = HsbToRgb(sz.Y, sz.Z, Math.Min(sz.X, 255.0f)),
innerRadius = 0.0f,
radius = float.MaxValue,
r2 = float.MaxValue
r2 = float.MaxValue,
});
}
else if (brush.media == BrList.Brush.Media.Object)
{
// TODO: Handle PropSpotlightAndAmbient
var id = (int)brush.brushInfo;
var propLight = hierarchy.GetProperty<PropLight>(id, "P$Light");
var propLightColor = hierarchy.GetProperty<PropLightColor>(id, "P$LightColo");
var propSpotlight = hierarchy.GetProperty<PropSpotlight>(id, "P$Spotlight");
if (propLight != null)
{
@ -130,6 +136,20 @@ class Program
r2 = propLight.Radius * propLight.Radius,
};
if (propSpotlight != null)
{
// TODO: Some objects seem to have spotlight direction embedded in the model file
var rot = Matrix4x4.Identity;
rot *= Matrix4x4.CreateRotationX(float.DegreesToRadians(brush.angle.X));
rot *= Matrix4x4.CreateRotationY(float.DegreesToRadians(brush.angle.Y));
rot *= Matrix4x4.CreateRotationZ(float.DegreesToRadians(brush.angle.Z));
light.spotlight = true;
light.spotlightDir = Vector3.Transform(-Vector3.UnitZ, rot);
light.spotlightInnerAngle = (float)Math.Cos(float.DegreesToRadians(propSpotlight.InnerAngle));
light.spotlightOuterAngle = (float)Math.Cos(float.DegreesToRadians(propSpotlight.OuterAngle));
}
if (propLight.Radius == 0)
{
light.radius = float.MaxValue;
@ -367,6 +387,34 @@ class Program
strength *= (light.radius - len) / (light.radius - light.innerRadius);
}
// This is basically the same as how inner radius works. It just applies
// a linear falloff to 0 between the inner angle and outer angle.
if (light.spotlight)
{
var spotAngle = Vector3.Dot(-Vector3.Normalize(dir), light.spotlightDir);
var inner = light.spotlightInnerAngle;
var outer = light.spotlightOuterAngle;
// In an improperly configured spotlight inner and outer angles might be the
// same. So to avoid division by zero (and some clamping) we explicitly handle
// some cases
float spotlightMultiplier;
if (spotAngle >= inner)
{
spotlightMultiplier = 1.0f;
}
else if (spotAngle <= outer)
{
spotlightMultiplier = 0.0f;
}
else
{
spotlightMultiplier = (spotAngle - outer) / (inner - outer);
}
strength *= spotlightMultiplier;
}
return strength;
}