Bug: Weapon Drawn on HUD going through world...

Graphics and GPU Programming Programming

Started by jmoses January 23, 2004 04:25 PM

6 comments, last by jmoses 20 years, 3 months ago

122

Author

January 23, 2004 04:25 PM

Hello, I''m having a problem with the weapon on my Heads Up Display poking through the world, if I scoot it closer to the camera it happens less, but I like the way it looks where it is. I tried calling glClear( GL_DEPTH_BUFFER_BIT ); right before I draw the HUD (which is the last thing drawn in the game loop), but that didn''t fix it. I''m sure many people have ran into this problem before, how did you guys fix it?

- John Moses

DrEvil

1,151

January 23, 2004 04:28 PM

I think you need to disable depth testing.

Omni-Bot: My game/mod independant AI bot framework.

Megahertz

286

January 23, 2004 05:47 PM

Prolly be better to just clear the Z buffer. You still want depth testing so the model comes out right.

-=[ Megahertz ]=-

-=[Megahertz]=-

jmoses

122

Author

January 23, 2004 09:45 PM

DrEvil, If I disable depth testing on the level, the polygons of the level will overlap all funny, if I disable depth testing with the gun model on the HUD, the weapon models polygons will become all glitchy looking. I''m pretty sure I need to just clear the Z buffer (the depth buffer), and Right before I draw the weapon model I do call glClear( CL_DEPTH_BUFFER_BIT ); but that doesnt work
Any Ideas?

Thanks,
- John

- John Moses

vNistelrooy

140

January 24, 2004 04:19 AM

Post your code, it should work.

"C lets you shoot yourself in the foot rather easily. C++ allows you to reuse the bullet!"

"C lets you shoot yourself in the foot rather easily. C++ allows you to reuse the bullet!"

oliii

2,202

January 24, 2004 07:34 AM

clear the buffers (z buffer, color, stencil, whatever you have), enable z-test, render the scene, clear the z buffer (or try disable depth test), render the gun, disable z-test, render the HUD, swap buffers.

Everything is better with Metal.

joanusdmentia

1,060

January 24, 2004 03:23 PM

If you''re using the stencil buffer anywhere make sure you disable it too.

"Voilà! In view, a humble vaudevillian veteran, cast vicariously as both victim and villain by the vicissitudes of Fate. This visage, no mere veneer of vanity, is a vestige of the vox populi, now vacant, vanished. However, this valorous visitation of a bygone vexation stands vivified, and has vowed to vanquish these venal and virulent vermin vanguarding vice and vouchsafing the violently vicious and voracious violation of volition. The only verdict is vengeance; a vendetta held as a votive, not in vain, for the value and veracity of such shall one day vindicate the vigilant and the virtuous. Verily, this vichyssoise of verbiage veers most verbose, so let me simply add that it's my very good honor to meet you and you may call me V.".....V

Sta7ic

139

January 25, 2004 11:41 AM

Try this:
* Set the stencil op to output a 1 when drawing w/ no stencil test
* Draw your weapon model
* Swap the stencil test to skip pixels with a stencil 1
* Disable the stencil op
* Draw the world geometry

Good luck on yer project.
-"Sta7ic" Matt

Bug: Weapon Drawn on HUD going through world...

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Bug: Weapon Drawn on HUD going through world...

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