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Very Interesting: The reason why the arguments to the glRotatef function in the OpenGL language did not work is that the variables were declared double precision and the code above includes the comman ...

Per the above samples and statements, being that the OpenGL system and the
requirement in the command glRotatef(ROT,XX,YY,ZZ) that the parameters be of the highest significance, what is the differenc ...

Another issue, when I call the GL command in SilverFrost Fortran and have the rotate transformation command CALL glRotatef(ROT,XX,YY,ZZ) from the above program segment with ROT=60., XX=0., YY=0., ZZ=1 ...

Thanks, that worked, Sid Kraft

Paul: I did process using the debugger, the variables were set from a calling machine and passed to the shown routine as arguments. Thus, should have been initialized before being sent. In actuality, ...

Answer from winio@ 0.0000ROT, 0.0000XX, 0.0000YY, 0.0000ZZ when the variables are output to the window in the previous example, Sid Kraft

Here it is:
SUBROUTINE OPENGL(ROT,XX,YY,ZZ)
IMPLICIT REAL*8 (A-H,O-Z)
COMMON PLTX(110), PLTY(110), PLTZ(110), ICIRCL, SGSIZE, INOW
C COMMON ROT,XX,YY,ZZ
...

Paul: I changed the variables as you had requested, made them all DOUBLE PRECISION. Ran the example, they were output to the window and all values were 0.0000. I tried to find an example in the winio@ ...

Supposedly, in the winio@ language, one is supposed to be able to output a floating point number in a window as follows:

i=winio@('%14.4wf VARIABLE &'), where:
...

Using OpenGL to output graphics in a window as defined below,
i=winio@('%es%ca[Simple OpenGL Example]&')

Am wondering if there is a command, maybe in the "winio@" library, to c ...

Where does one find the "Call" routines for the GL Graphics library, i.e. "Call glRotatef(Angle,x,y,x)" ? Sid Kraft

Thanks, Sid Kraft

What is the difference between rebuild dependencies and build? Sid Kraft

Creating a project module and when I do, it asks for existing routines. When I select .for files, it creates a pointer to the file for execution. I would like to transfer this executable module to ano ...

Sounds like a driver problem, where do I go to download the latest driver for ClearWin? Sid Kraft