[Solved] Draw simple 2D shape in custom ItemRenderer

[Hunternif]

I made a custom IItemRenderer implementation to render items in inventory slots. Now I need to draw a simple 2D polygonal shape in the inventory item slot.

 

The javadoc says:

If rendering as a 2D texture, the rendering should be in GUI pixel coordinates from (0, 0, 0)-(16, 16, 0)

 

So I thought the code should look something like this:

 

// Draw a semi-transparent red square
GL11.glColor4f(1.0f, 0f, 0f, 0.5f);
GL11.glBegin(GL11.GL_QUADS);
GL11.glVertex3f(0F, 0F, 0F);
GL11.glVertex3f(16F, 0F, 0F);
GL11.glVertex3f(16F, 16F, 0F);
GL11.glVertex3f(0F, 16F, 0F);
GL11.glEnd();

 

But nothing appears in the item slot. Can anyone help me with this?

[Hunternif]

Nvm, figured it out. Will post solution later. Maybe I'll make a wiki too

[Hunternif]

Here: http://www.minecraftforge.net/wiki/Custom_2D_Inventory_Item_Renderer

 

*ENGINEER IS CREDIT TO TEAM*