Version: 2019.4
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  • C#

GL.PushMatrix

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public static void PushMatrix();

Description

Saves the model, view and projection matrices to the top of the matrix stack.

Changing the model, view or projection matrices overrides the current rendering matrices. It is good practice to save and restore these matrices using GL.PushMatrix and GL.PopMatrix.

See Also: PopMatrix function.

using UnityEngine;

public class Example : MonoBehaviour { // Draw a yellow line from the botton left to the // top right of the screen Material mat;

void OnPostRender() { if (!mat) { Debug.LogError("Please Assign a material on the inspector"); return; } GL.PushMatrix(); // Save the current state mat.SetPass(0); GL.LoadPixelMatrix(); GL.Color(Color.yellow); GL.Begin(GL.LINES); GL.Vertex3(0, 0, 0); GL.Vertex3(Screen.width, Screen.height, 0); GL.End(); GL.PopMatrix(); // Pop changes. } }