Mode for Begin: draw quads.
If you want to draw something 2D in screen space then
probably you will want to use GL.LoadOrtho or GL.LoadPixelMatrix.
If you want something in "3D", then probably you should consider
using GL.LoadIdentity followed by GL.MultMatrix with the actual
3D transform you want your stuff to be in.
See Also: GL.Begin, GL.End.
// Draw red a rombus on the screen // and also draw a small cyan Quad in the left corner var mat : Material; function OnPostRender() { if (!mat) { Debug.LogError("Please Assign a material on the inspector"); return; } GL.PushMatrix(); mat.SetPass(0); GL.LoadOrtho(); GL.Begin(GL.QUADS); GL.Color(Color.red); GL.Vertex3(0,0.5,0); GL.Vertex3(0.5,1,0); GL.Vertex3(1,0.5,0); GL.Vertex3(0.5,0,0);
GL.Color(Color.cyan); GL.Vertex3(0,0,0); GL.Vertex3(0,0.25,0); GL.Vertex3(0.25,0.25,0); GL.Vertex3(0.25,0,0); GL.End(); GL.PopMatrix(); }
using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { public Material mat; void OnPostRender() { if (!mat) { Debug.LogError("Please Assign a material on the inspector"); return; } GL.PushMatrix(); mat.SetPass(0); GL.LoadOrtho(); GL.Begin(GL.QUADS); GL.Color(Color.red); GL.Vertex3(0, 0.5F, 0); GL.Vertex3(0.5F, 1, 0); GL.Vertex3(1, 0.5F, 0); GL.Vertex3(0.5F, 0, 0); GL.Color(Color.cyan); GL.Vertex3(0, 0, 0); GL.Vertex3(0, 0.25F, 0); GL.Vertex3(0.25F, 0.25F, 0); GL.Vertex3(0.25F, 0, 0); GL.End(); GL.PopMatrix(); } }