GL Graphics crash

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Nigel Brown

(Posted 2007) [#1]

SetGraphicsDriver GLMax2DDriver()

glEnable(GL_POLYGON_SMOOTH)
glEnable(GL_LINE_SMOOTH)

Why does this crash on OSX? Works fine on PC, still stands after typo correction :-)

ImaginaryHuman

(Posted 2007) [#2]

typo? GL_POLYGON_SMOTH should be GL_POLYGON_SMOOTH?

Maybe your particular mac's opengl driver has some issue or bug that doesn't like it?

It looks like legit gl code.

Winni

(Posted 2007) [#3]

It also crashes on my Intel iMac and my PowerBook G4.

ima747

(Posted 2007) [#4]

seems to work on my PowerBook G4... running 10.4.9 and blitz is up to date and synched... always a good thing to make sure blitz is all up to date if you're getting crashes you shouldn't...

DavidDC

(Posted 2007) [#5]

Crashes here too. OS X 10.4.10 Max 1.26

Model Name: iMac
Model Identifier: iMac6,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.16 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache (per processor): 4 MB
Memory: 2 GB
Bus Speed: 667 MHz

Chipset Model: NVIDIA GeForce 7600 GT
Type: Display
Bus: PCIe
VRAM (Total): 256 MB

David

dawlane

(Posted 2007) [#6]

Try and create a graphics object first with the Graphics command before using any opengl commands.

e.g.

GLGraphics 800, 600

rigth out of the blitz help file

SetGraphicsDriver GLMax2DDriver()
Local g:TGraphics=CreateGraphics( 640,480,32,60,GRAPHICS_BACKBUFFER )
SetGraphics g

if you don't create a gl context (thats display) you get a SIGAL: 10 (SIGBUS) error. Which roughly translats to your trying to access something that doesn't exist.

turn off Build GUI app to see such errors.