I hadn't seen this message. Please do. Then I'll show you what I just did (morph targets, lip-synching with speech synthesizing all offline, of course).

You can still access older versions by their version number. Like so: https://jpct.de/download/net/jpctapi_124.zip

Hello, I'm currently trying to access an older version of jPCT that supports JVM 1.3, since the latest version only supports JVM 1.4 at minimum. I would like to experiment with JVM 1.1-1.3 support for certain applications, and based on the version history, jPCT 1.24 seems to be the last to officially support JVM 1.1 before jPCT 1.25 made JVM 1.4 a mandatory requirement.

I would greatly appreciate any assistance in this area.

Didn't get to it over the holidays. I'll try to look at it later this month.

Yeah, that's a bit strange indeed.

I'll produce a simple test for you. But it's interesting that it doesn't happen on Intel, right?

Looks more like some AI hallucination to me. The only part in which jPCT is using GL_SCISSOR_TEST is in the context of render targets, which doesn't apply here.

I'll try to find some time to look into it during the holiday season. Do you actually have a basic test case that shows the issue?

I have a surprising piece of information: I've been trying hardware for running offline AI and I got an excellent computer with an Intel GPU. On AMD and NVidia that problem happens. On the Intel GPU it does not. So I asked that very computer and it suggested the following:

// After you have moved the camera or otherwise changed the viewport size:
GL11.glDisable(GL11.GL_SCISSOR_TEST);          // make sure the old scissor is gone
GL11.glViewport(0, 0, canvas.getWidth(), canvas.getHeight());
GL11.glEnable(GL11.GL_SCISSOR_TEST);           // re‑enable with the *new* dimensions
GL11.glScissor(0, 0, canvas.getWidth(), canvas.getHeight());


Maybe...I'll have to look into it to see what the overlay code does exactly.

The code is only the following. Is it possible that the Overlay class needs attention after this change to AWTGlCanvas?

       fullScreenOverlay = new Overlay(theWorld, 0, 50, (int)(buffer.getWidth()), (int)(buffer.getHeight()-50), "FullInterface");
       fullScreenOverlay.setTransparencyMode(Object3D.TRANSPARENCY_MODE_DEFAULT);
       fullScreenOverlay.setTransparency(250);