OpenGL and negative float values

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Make76

Joined: 13 Aug 2007
Posts: 2
Location: Finland

Make76 21 Aug 2007, 07:06

How could i use negative float values in OpenGL functions?

Next line works fine:
invoke glTranslatef,0.0f,0.0f,-5.0f

But if i use variable then negative value does not work:

z GLfloat -5.0f

invoke glTranslatef,0.0f,0.0f,z

Maybe i should use another variable type than GLfloat, but what?

21 Aug 2007, 07:06

madmatt

Joined: 07 Oct 2003
Posts: 1045
Location: Michigan, USA

madmatt 21 Aug 2007, 07:56

you would need to define it in your data section:

Code:

section '.data' data readable writeable
z dd -5.0

then do this

Code:

invoke glTranslatef, 0.0, 0.0, [z]

21 Aug 2007, 07:56

Make76

Joined: 13 Aug 2007
Posts: 2
Location: Finland

Make76 21 Aug 2007, 08:57

Thanks madmatt it worked . Very Happy

21 Aug 2007, 08:57

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