Class: http://pastebin.com/Jdnrur5x

Effectively I am stumped, I know the code is being called I steeped through it all with breakpoints.

Nothing appears to be rendering (I effectively cloned ScreenGui.drawRec())

 

Ideas?

Any other information I need to provide?

Some random ideas...

 

Perhaps your z coordinate is behind the background.  Try using z = -75, or turning off depth testing.

 

Perhaps you have back face culling on, and the triangle vertices are in wrong order.  Try turning off back face culling, or reversing the vertex order in each triangle.

 

-TGG

Just tried both -75 and 75. No luck same with drawing the triangle backwards again no luck

As I've noticed, you don't draw an actual triangle, also the coordinates you give makes it draw an infinitely thin line.

Remove the last 3 addVertex' and try again.

Removed those last 3, no dice. Asking again on IRC revealed that it might be an issue with the opengl options that are being set. Any ideas on that?

Resolved, I found the mapwriter source

 GL11.glEnable(GL11.GL_BLEND);
    	 GL11.glDisable(GL11.GL_TEXTURE_2D);
    	 GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    	 Tessellator tes = Tessellator.instance;
    	 tes.startDrawing(GL11.GL_TRIANGLES);
    	 tes.addVertex(20, 20, 0);
    	 tes.addVertex(20, 30, 0);
    	 tes.addVertex(30, 20, 0);
    	 tes.draw();
    	 GL11.glEnable(GL11.GL_TEXTURE_2D);
    	 GL11.glDisable(GL11.GL_BLEND);