Forum > OpenGL
Help (OpenGL-FPC) with the graphic of the view of two polygons in 3D
carlejt:
Hello
My problem is to represent the view of two polygons in 3D, using Free Pascal and OpenGL at fullscreen mode 640x480;
Note: In each polygon draw the image of a bitmap.
1) Position of eye: (20, 20, 20)
2) Point of observation: (0, 0, 0)
3) Vector Up the camera: (-1, -1, 1)
4) Visual Angle: 45
5) Distance Far: 50
6) Near Distance: 0.1
7) The vertices of the polygon 1 are: (0, 0, 0), (1, 1, 0), (2, 0, 0) with a bitmap 1 of 640x480. (occupying the area of the polygon)
8> The vertices of the polygon 2 are: (0, 0, 5), (1, 1, 5), (2, 0, 5) with a bitmap 2 of 320x200. (occupying the area of the polygon)
The code (free pascal) for this program-problem would be helpful. (please).
Any suggestions would help.
Thanks.
mrBrown:
Have you tried GLScene?
carlejt:
Hello
Thanks for responding. I've tried but I failed to install. I followed the instructions in http://wiki.lazarus.freepascal.org/GLScene.
Actually I want to know what would be the code of the program the problem I raised. It would be helpful.
mrBrown:
I think those instructions are a bit outdated.
Just download GLScene from www.glscene.org.
I downloaded the Snapshot for SVN revision 5593 last week and it installed fine in lazarus 0.9.30.
From lazarus do Package -> open package file
and then select glscene_runtime.lpk in the /Lazarus directory of GLScene (or the other one, don't remember). Lazarus will add the other required packages automatically.
Leledumbo:
Try the OpenGL example, then try solving the problem yourself. When stuck, post your code so far and explain what you have done and what's missing.
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