Java-Gaming.org    
Featured games (81)
games approved by the League of Dukes
Games in Showcase (499)
Games in Android Showcase (118)
games submitted by our members
Games in WIP (567)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
 
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  [Solved] Using glScissor  (Read 311 times)
0 Members and 1 Guest are viewing this topic.
Offline CopyableCougar4

Senior Member


Medals: 11
Exp: 1 year



« Posted 2014-08-22 21:35:32 »

I was reading about
glScissor
, but I couldn't figure out how to use it. This is what I have but it doesn't trim anything.

1  
2  
3  
4  
5  
6  
glPushMatrix();
renderable.render();
glEnable(GL_SCISSOR_TEST);
glScissor(Math.round(panel.x + sx), Math.round(panel.y + sy), Math.round(panel.width), Math.round(panel.height));
glDisable(GL_SCISSOR_TEST);
glPopMatrix();


Hope someone can help me Smiley

CopyableCougar4

Either wandering the forum or programming. Most likely the latter Smiley

Github: http://github.com/CopyableCougar4
Online princec

JGO Kernel


Medals: 386
Projects: 3
Exp: 16 years


Eh? Who? What? ... Me?


« Reply #1 - Posted 2014-08-22 22:06:23 »

You didn't draw anything...

The scissor test clips drawing while it's enabled.

Cas Smiley

Offline CopyableCougar4

Senior Member


Medals: 11
Exp: 1 year



« Reply #2 - Posted 2014-08-22 22:37:36 »

I shifted the rendering to after glScissor and it doesn't show anything? Do I have to flip the Y value for glScissor?

CopyableCougar4

Either wandering the forum or programming. Most likely the latter Smiley

Github: http://github.com/CopyableCougar4
Games published by our own members! Check 'em out!
Legends of Yore - The Casual Retro Roguelike
Offline CopyableCougar4

Senior Member


Medals: 11
Exp: 1 year



« Reply #3 - Posted 2014-08-22 22:42:48 »

So I adjusted for OpenGL's y values and I think I got it working Smiley

Code:
1  
2  
3  
4  
5  
6  
glPushMatrix();
glEnable(GL_SCISSOR_TEST);
glScissor(Math.round(panel.x + sx), (Launcher.getHeight() - Math.round(panel.y + sy)) - Math.round(panel.height), Math.round(panel.width), Math.round(panel.height));
renderable.render();
glDisable(GL_SCISSOR_TEST);
glPopMatrix();

Either wandering the forum or programming. Most likely the latter Smiley

Github: http://github.com/CopyableCougar4
Pages: [1]
  ignore  |  Print  
 
 

 

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

Pippogeek (37 views)
2014-09-24 16:13:29

Pippogeek (29 views)
2014-09-24 16:12:22

Pippogeek (18 views)
2014-09-24 16:12:06

Grunnt (42 views)
2014-09-23 14:38:19

radar3301 (24 views)
2014-09-21 23:33:17

BurntPizza (61 views)
2014-09-21 02:42:18

BurntPizza (30 views)
2014-09-21 01:30:30

moogie (36 views)
2014-09-21 00:26:15

UprightPath (49 views)
2014-09-20 20:14:06

BurntPizza (52 views)
2014-09-19 03:14:18
List of Learning Resources
by Longor1996
2014-08-16 10:40:00

List of Learning Resources
by SilverTiger
2014-08-05 19:33:27

Resources for WIP games
by CogWheelz
2014-08-01 16:20:17

Resources for WIP games
by CogWheelz
2014-08-01 16:19:50

List of Learning Resources
by SilverTiger
2014-07-31 16:29:50

List of Learning Resources
by SilverTiger
2014-07-31 16:26:06

List of Learning Resources
by SilverTiger
2014-07-31 11:54:12

HotSpot Options
by dleskov
2014-07-08 01:59:08
java-gaming.org is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑gaming.org
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!