Comments on: [TUTORIAL] – Automatically Create Light Probes

By: Barbe63

Barbe63 — Fri, 16 Jan 2015 08:14:25 +0000

Yeah… not working.. Please try your scripts before posting it, I already see this “if(bbox.min.z maxX) maxX = bbox.max.x;” wich obviously makes no sense and i bet more are missing seeing how much monodevelop is angry at me when i paste this.

By: xalsVR

xalsVR — Thu, 28 Aug 2014 08:49:05 +0000

I fixed the script

// ————————————————–
// Copyright (C) 2013 Ghost Mantis Games LLC
// This software is provided “as is”, withouth warranty of any kind.
// This software is provided exclusively to you free of charge.
// Ghost Mantis Games LLC does not make and hereby disclaims any warranties
// of any kind. By using this software you agree to these terms.
//
// Fixed by xalsVR 08/2014
// ————————————————–

using UnityEngine;
using UnityEditor;
using System.Collections.Generic;

public class CreateLightProbes : EditorWindow {
float Spacing = 2.0f;
float SecondHeight = 4.0f;

[MenuItem("Custom/Create Light Probes")]

static void Init(){
// Get existing open window or if none, make a new one:
CreateLightProbes window = (CreateLightProbes)EditorWindow.GetWindow(typeof(CreateLightProbes), true, “Create Light Probes”);
window.position = new Rect((Screen.width / 2) – 125, Screen.height / 2 + 85, 300, 80);
window.Show();
}

void OnGUI(){
GUILayout.Label (“Creation:”, EditorStyles.boldLabel);
Spacing = EditorGUILayout.FloatField(“Spacing:”, Spacing);
SecondHeight = EditorGUILayout.FloatField(“Secondary Height:”, SecondHeight);

// Clamp values
if(Spacing < 0.1f) Spacing = 0.1f;
if(SecondHeight < 0.1f) SecondHeight = 0.1f;

if(GUILayout.Button("Create Light Probes On Selected Objects")){
Bounds();
}
}

void Bounds(){
// Get selection
GameObject[] Select = Selection.gameObjects;
if(Select.Length < 1) return;

// Get total bounds for selected objects
float minX = 0.0f;
float minY = 0.0f;
float minZ = 0.0f;
float maxX = 0.0f;
float maxY = 0.0f;
float maxZ = 0.0f;
for(int i=0; i // First check that mesh has a collider attached to it
// if it doesn't then we can't raycast so we should ignore this object
Collider col = Select[i].GetComponent();
if(col == null) continue;

// Get renderer component attached to object
// If there is no renderer attached then we ignore this object
Renderer renderer = Select[i].GetComponent();
if(renderer == null) continue;

// Get the renderer bounds
Bounds bbox = renderer.bounds;

// Update total bounds
if(bbox.min.x < minX) minX = bbox.min.x;
if(bbox.min.y < minY) minY = bbox.min.y;
if(bbox.min.z maxX) maxX = bbox.max.x;
if(bbox.max.y > maxY) maxY = bbox.max.y;
if(bbox.max.z > maxZ) maxZ = bbox.max.z;
}

// Now go through in a grid and attempt to place a light probe using raycasting
float xCount = minX;
float zCount = minZ;

List VertPositions = new List();

for(int z=0; z for(int x=0; x // Raycast downwards through each selected object and
// attempt to find one that we are over
for(int j=0; j Collider col = Select[j].GetComponent();

RaycastHit hit;
Ray ray = new Ray();
ray.origin = new Vector3(xCount, maxY, zCount);
ray.direction = -Vector3.up;
if(col.Raycast(ray, out hit, (maxY-minY)*2)){
VertPositions.Add(hit.point + new Vector3(0, 0.07f, 0));
VertPositions.Add(hit.point + new Vector3(0, SecondHeight, 0));
}
}

xCount += Spacing;
}

// Reset X Counter
xCount = minX;

zCount += Spacing;
}

// Check if we have any hits
if(VertPositions.Count < 1) return;

// Get _LightProbes game object
GameObject LightProbeGameObj = GameObject.Find("_LightProbes");
if(LightProbeGameObj == null) return;

// Get light probe group component
LightProbeGroup LPGroup = LightProbeGameObj.GetComponent("LightProbeGroup") as LightProbeGroup;
if(LPGroup == null) return;

// Create lightprobe positions
Vector3[] ProbePos = new Vector3[VertPositions.Count];
for(int i=0; i ProbePos[i] = VertPositions[i];
}

// Set new light probes
LPGroup.probePositions = ProbePos;

Debug.Log("Finished Probe Calculations with: " + ProbePos.Length + "Probes.");
}
}

By: xalsVR

xalsVR — Thu, 28 Aug 2014 08:42:45 +0000

for those who have error on compilate it

using UnityEngine;
using UnityEditor;
using System.Collections.Generic;

public class CreateLightProbes : EditorWindow {
float Spacing = 2.0f;
float SecondHeight = 4.0f;

[MenuItem("Custom/Create Light Probes")]

// Clamp values
if(Spacing < 0.1f) Spacing = 0.1f;
if(SecondHeight < 0.1f) SecondHeight = 0.1f;

if(GUILayout.Button("Create Light Probes On Selected Objects")){
Bounds();
}
}

void Bounds(){
// Get selection
GameObject[] Select = Selection.gameObjects;
if(Select.Length < 1) return;

// Get renderer component attached to object
// If there is no renderer attached then we ignore this object
Renderer renderer = Select[i].GetComponent();
if(renderer == null) continue;

// Get the renderer bounds
Bounds bbox = renderer.bounds;

// Now go through in a grid and attempt to place a light probe using raycasting
float xCount = minX;
float zCount = minZ;

List VertPositions = new List();

for(int z=0; z for(int x=0; x // Raycast downwards through each selected object and
// attempt to find one that we are over
for(int j=0; j Collider col = Select[j].GetComponent();

xCount += Spacing;
}

// Reset X Counter
xCount = minX;

zCount += Spacing;
}

// Check if we have any hits
if(VertPositions.Count < 1) return;

// Get _LightProbes game object
GameObject LightProbeGameObj = GameObject.Find("_LightProbes");
if(LightProbeGameObj == null) return;

// Get light probe group component
LightProbeGroup LPGroup = LightProbeGameObj.GetComponent("LightProbeGroup") as LightProbeGroup;
if(LPGroup == null) return;

// Create lightprobe positions
Vector3[] ProbePos = new Vector3[VertPositions.Count];
for(int i=0; i ProbePos[i] = VertPositions[i];
}

// Set new light probes
LPGroup.probePositions = ProbePos;

Debug.Log("Finished Probe Calculations with: " + ProbePos.Length + "Probes.");
}
}

By: Fishypants

Fishypants — Thu, 15 May 2014 23:39:35 +0000

To the people having issues, it appears things have changed in the latest version of Unity. I will work on getting it converted and updated to the latest Unity release, and I will update the blog accordingly.

By: Brian

Brian — Thu, 15 May 2014 20:26:34 +0000

I get this error:

“Assets/Editor/CreateLightProbes.cs(78,17): error CS0246: The type or namespace name `List’ could not be found. Are you missing a using directive or an assembly reference?”

I am using Unity 4.3.4f1.

I have System.Collections.Generic in the script, but I still receive this error…