Lacklustre performance when porting from Java2D to JOGL

OpenGL Development JOGL Development
#1

Hello,

Any suggestions why porting a basic 2D sprite-based game framework from Java2D to Jogl would result in much poorer frame rates?

Java2D framerates max around 150 FPS
Jogl framerates max around 70 FPS

I’m using Java 1.5/most recent stable release of Jogl

Jogl reports:
Vendor: NVIDIA Corporation
Renderer: GeForce 6600 GT/PCI/SSE2/3DNOW!

I’m initialising as follows:
gl = drawable.getGL();
gl.glEnable( GL.GL_TEXTURE_2D );
gl.glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
gl.glViewport( 0, 0, width_, height_ );
gl.glDisable( GL.GL_DEPTH_TEST );

(I’m using what appears to be a fairly common openGL texturing method for rendering : quads textured to match sprite images)

Any ideas where to look for performance bottlenecks without resorting to posting loads of code?

Cheers.

#2

Have you tried calling gl.setSwapInterval(0) in your init() method?

#3

Groovy.

Thanks Ken, that worked a treat.

Now getting CPU-based bottleneck around 650 FPS

Apologies to those who know this already but a little searching reveals my previous 70 FPS to be the default OpenGL swap interval

  • based on my current monitor refresh rate.

Now to get OpenAL up and running…