Thank you for ur fast reply - much appreciated!
I know nothing about OpenGL, however the code refered to (below) causes vm to crash. Any G11 method (GL11.glMatrixMode+GL11.glColor3f+) makes it crash. What do I leave out?
while (loop) {
// do jPCT things
world.renderScene(buffer);
world.draw(buffer);
buffer.update();
// do lwjgl things
GL11.glBegin(GL11.GL_LINES);
GL11.glVertex2f(10, 10);
GL11.glVertex2f(50, 50);
GL11.glEnd();
buffer.displayGLOnly();
Thread.sleep(10);
}
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glPushMatrix();
GL11.glLoadIdentity();
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glPushMatrix();
GL11.glLoadIdentity();
GL11.glOrtho(0, 1, 1, 0, 0.1, 100);
GL11.glColor3f(255, 255, 255);
GL11.glDisable(GL11.GL_TEXTURE_2D);
GL11.glBegin(GL11.GL_LINES);
GL11.glVertex3f(0.0f, 0.0f, -1f);
GL11.glVertex3f(1.0f, 1.0f, -1f);
GL11.glEnd();
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glPopMatrix();
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glPopMatrix();
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00af098d, pid=2176, tid=2460
#
# Java VM: Java HotSpot(TM) Client VM (1.5.0_04-b05 mixed mode)
# Problematic frame:
# j org.lwjgl.opengl.GL11.glMatrixMode(I)V+0