OpenGL Lighting Issue

[aadityap0901]

BTW this works with FPS Counter:

Code: (Select All)

'$Dynamic



Screen _NewImage(640, 480, 32)

_PrintMode _KeepBackground



Dim Shared Texture As Long, allowGL As _Bit

TMPTexture = _NewImage(64, 64, 32)

_Dest TMPTexture

For X = 0 To 63

    For Y = 0 To 63

        PSet (X, Y), _RGB32(255 - X * 2 - Y * 2, X * 4, Y * 4)

Next Y, X

_Dest 0



Texture = _CopyImage(TMPTexture, 32)

_FreeImage TMPTexture

While Texture: Wend



Dim Shared As _Unsigned Integer LFPS, GFPS, LFPSCount, GFPSCount: LFPS = 60



F = _FreeTimer

On Timer(F, 1) GoSub FPSCounter

Timer(F) On



Cls

_GLRender _Behind

allowGL = -1

Do

    _Limit 60

    LFPSCount = LFPSCount + 1

    Cls 2, 0

    Print "FPS (G/L):"; GFPS; "/"; LFPS

    _Display

Loop Until Inp(&H60) = 1

System



FPSCounter:

If LFPSCount Then LFPS = LFPSCount

LFPSCount = 0

GFPS = GFPSCount

GFPSCount = 0

Return



Sub _GL

    Static As Long TextureHandle

    If Texture < -1 Then GL_Generate_Texture TextureHandle, Texture

    If allowGL = 0 Then Exit Sub



    _glViewport 0, 0, _Width - 1, _Height - 1

    _glEnable _GL_DEPTH_TEST

    _glClearColor 0, 0.5, 1, 0

    _glClear _GL_DEPTH_BUFFER_BIT Or _GL_COLOR_BUFFER_BIT

    _glTranslatef 0, 0, -5

    _glRotatef Timer, 1, 0, 0

    _glRotatef 10 * Timer, 0, 1, 0

    _glMatrixMode _GL_PROJECTION

    _glLoadIdentity

    _gluPerspective 70, _Width / _Height, 0.1, 256

    _glMatrixMode _GL_MODELVIEW

    _glEnable _GL_TEXTURE_2D

    _glBindTexture _GL_TEXTURE_2D, TextureHandle

    _glBegin _GL_QUADS

    _glVertex3f -2, 2, 0

    _glTexCoord2f 0, 1

    _glVertex3f -2, -2, 0

    _glTexCoord2f 0, 0

    _glVertex3f 2, -2, 0

    _glTexCoord2f 1, 0

    _glVertex3f 2, 2, 0

    _glTexCoord2f 1, 1

    _glEnd

    _glDisable _GL_TEXTURE_2D

    _glDisable _GL_DEPTH_TEST

    _glFlush

    GFPSCount = GFPSCount + 1

End Sub

Sub GL_Generate_Texture (Handle As Long, Image As Long)

    Dim M As _MEM

    _glGenTextures 1, _Offset(Handle)

    _glBindTexture _GL_TEXTURE_2D, Handle

    M = _MemImage(Image)

    _glTexImage2D _GL_TEXTURE_2D, 0, _GL_RGBA, _Width(Image), _Height(Image), 0, _GL_BGRA_EXT, _GL_UNSIGNED_BYTE, M.OFFSET

    _MemFree M

    _FreeImage Image

    Image = 0

    _glTexParameteri _GL_TEXTURE_2D, _GL_TEXTURE_MIN_FILTER, _GL_NEAREST

    _glTexParameteri _GL_TEXTURE_2D, _GL_TEXTURE_MAG_FILTER, _GL_NEAREST

End Sub

Someone please find why the code in the above post doesn't work.
When I debug it correctly, it shows FPSCounter is duplicate label.