CODEWITHSUNDEEP
javaopengllwjgl
samster
samster

Reputation: 182

LWJGL - A function that is not available in the current context was called

I just started using LWJGL and OpenGL and I've run into a problem. I'm trying to figure out how to draw a simple line for a game I'm making using a game engine I found.

This is the link to the engine I'm using: https://github.com/SilverTiger/SilenceEngine

In the renderer class I tried adding this function -

 public void drawLine(Point point, Point point2) {

        GL11.glColor3f(0.0f, 1.0f, 0.2f);
        GL11.glBegin(GL11.GL_LINES);
        GL11.glVertex2d(point.x, point.y);
        GL11.glVertex2d(point2.x, point2.y);
        GL11.glEnd();

 }

The error that I get is as follows:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007fff32b524cd, pid=3016, tid=0x0000000000002548
#
# JRE version: Java(TM) SE Runtime Environment (8.0_131-b11) (build 1.8.0_131-b11)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.131-b11 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C  [lwjgl.dll+0x124cd]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\sambu\workspace\NextGen Engine - 0.3.1\hs_err_pid3016.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
[LWJGL] A function that is not available in the current context was called. The JVM will abort execution. Inspect the crash log to find the responsible Java frames.

I'm very new to this and not sure how to fix this.

Upvotes: 1

Views: 6323

Answers (1)

Nick Clark
Nick Clark

Reputation: 1446

The window being created in the engine has an OpenGL context of version 3.2. In version 3.2, you cannot call the old, primitive draw calls. All draw calls need to be done with vertex arrays and buffers. Here is a tutorial on how to do this (keep in mind, this is written in C++): Draw Your First Triangle. Here is the engine's forums on getting started (called Newbie Questions). Forum

Upvotes: 1

Related Questions