Render using perspective in GuiScreen

[WilliamLe]

I'm currently making a gui that'd display a model and player can edit it, move it around,.... somewhat similar to a 3d model editing program.

But when i use GL11.glTranslated(x, y, z), translate x and y work fine, but no matter what value i put to z, nothing seems to change, no matter what angle i'm looking the model at.

 

After a little search I found out that when rendering guis, Minecraft switch to rendering as Orthographic, and i'd like to know how to change it back to Perspective, when i try GL11.glFrustum it keeps saying "GL ERROR - @ Post render - 1280 : invalid enum

and the model seems to disappear

 

How would i change to render as perspective view correctly?

[Busti]

Try to look at the Gui renderer for the player Inventory where the player model is rendered.

[WilliamLe]

Thank you for your answer but it seems like in player inventory it still renders as Orthographic