GL.Lines only showing in one eye
Hi Guys
I am adding rift support to my Unity Game AI Framework (https://github.com/skooter500/UnitySteeringBehaviours) and I am having trouble with GL.Lines. I have a class for drawing lines that uses a shader and OnPostRender. It's attached to the camera. I have also attached an instance to CameraLeft and CameraRight of the OVRCameraController. The problem is that when the rift camera is enabled, the lines only get drawn in the left eye. The list of lines is static, so all the scripts are drawing the same list of lines. How do I get 3D lines to be drawing in both eyes?
Here is my script:
I am adding rift support to my Unity Game AI Framework (https://github.com/skooter500/UnitySteeringBehaviours) and I am having trouble with GL.Lines. I have a class for drawing lines that uses a shader and OnPostRender. It's attached to the camera. I have also attached an instance to CameraLeft and CameraRight of the OVRCameraController. The problem is that when the rift camera is enabled, the lines only get drawn in the left eye. The list of lines is static, so all the scripts are drawing the same list of lines. How do I get 3D lines to be drawing in both eyes?
Here is my script:
using UnityEngine;
using System.Collections;
using System;
using System.Collections.Generic;
// Must be attached to the camera so that OnPostRender gets called
namespace BGE
{
public class LineDrawer : MonoBehaviour
{
struct Line
{
public Vector3 start;
public Vector3 end;
public Color color;
public bool isDebug;
public Line(Vector3 start, Vector3 end, Color color, bool isDebug)
{
this.start = start;
this.end = end;
this.color = color;
this.isDebug = isDebug;
}
}
static List<Line> lines = new List<Line>();
Material lineMaterial;
// Use this for initialization
void Start()
{
}
void Awake()
{
DontDestroyOnLoad(this);
}
public static void DrawLine(Vector3 start, Vector3 end, Color colour)
{
lines.Add(new Line(start, end, colour, false));
}
public static void DrawTarget(Vector3 target, Color colour)
{
float dist = 1;
DrawLine(new Vector3(target.x - dist, target.y, target.z), new Vector3(target.x + dist, target.y, target.z), colour);
DrawLine(new Vector3(target.x, target.y - dist, target.z), new Vector3(target.x, target.y + dist, target.z), colour);
DrawLine(new Vector3(target.x, target.y, target.z - dist), new Vector3(target.x, target.y, target.z + dist), colour);
}
public static void DrawSquare(Vector3 min, Vector3 max, Color colour)
{
Vector3 tl = new Vector3(min.x, min.y, max.z);
Vector3 br = new Vector3(max.x, min.y, min.z);
LineDrawer.DrawLine(min, tl, colour);
LineDrawer.DrawLine(tl, max, colour);
LineDrawer.DrawLine(max, br, colour);
LineDrawer.DrawLine(br, min, colour);
}
public static void DrawCircle(Vector3 centre, float radius, int points, Color colour)
{
float thetaInc = (Mathf.PI * 2.0f) / (float)points;
Vector3 lastPoint = centre + new Vector3(0, 0, radius);
for (int i = 1; i <= points; i++)
{
float theta = thetaInc * i;
Vector3 point = centre +
(new Vector3((float) Math.Sin(theta), 0, (float) Math.Cos(theta)) * radius);
DrawLine(lastPoint, point, colour);
lastPoint = point;
}
}
public static void DrawVectors(Transform transform)
{
float length = 20.0f;
DrawArrowLine(transform.position, transform.position + transform.forward * length, Color.blue, transform.rotation);
DrawArrowLine(transform.position, transform.position + transform.right * length, Color.red, transform.rotation * Quaternion.AngleAxis(90, Vector3.up));
DrawArrowLine(transform.position, transform.position + transform.up * length, Color.green, transform.rotation * Quaternion.AngleAxis(-90, Vector3.right));
}
public static void DrawArrowLine(Vector3 start, Vector3 end, Color color, Quaternion rot)
{
lines.Add(new Line(start, end, color, false));
float side = 1;
float back = -5;
Vector3[] points = new Vector3[3];
points[0] = new Vector3(-side, 0, back);
points[1] = new Vector3(0, 0, 0);
points[2] = new Vector3(side, 0, back);
for (int i = 0 ; i < 3 ; i ++)
{
points[i] = (rot * points[i]) + end;
}
lines.Add(new Line(points[0], points[1], color, false));
lines.Add(new Line(points[2], points[1], color, false));
}
void CreateLineMaterial()
{
if (!lineMaterial)
{
lineMaterial = new Material("Shader \"Lines/Colored Blended\" {" +
"SubShader { Pass { " +
" Blend SrcAlpha OneMinusSrcAlpha " +
" ZWrite Off Cull Off Fog { Mode Off } " +
" BindChannels {" +
" Bind \"vertex\", vertex Bind \"color\", color }" +
"} } }");
lineMaterial.hideFlags = HideFlags.HideAndDontSave;
lineMaterial.shader.hideFlags = HideFlags.HideAndDontSave;
}
}
void OnGUI()
{
//Debug.Log("On post render called");
CreateLineMaterial();
// set the current material
lineMaterial.SetPass(0);
GL.Begin(GL.LINES);
foreach (Line line in lines)
{
GL.Color(line.color);
GL.Vertex3(line.start.x, line.start.y, line.start.z);
GL.Vertex3(line.end.x, line.end.y, line.end.z);
}
GL.End();
lines.Clear();
}
}
}