Weird rendering artifact with Gwen Gui

[franck22000]

Hello, i am currently adding Gwen Gui into my game everything is working fine so far but i got a weird rendering artifact on some models (depending of the angle of the camera) if i render the Gui.

 

Look at those images (dont pay attention to the weird rendering of the text):

 

 

I have identified the code responsible of this in the openGL renderer of Gwen Gui, it is this code:

 

 

glColorPointer( 4, GL_UNSIGNED_BYTE, sizeof(Vertex), (void*)&m_Vertices[0].r );
glEnableClientState( GL_COLOR_ARRAY );

 

if i comment this code portion the bug is solved but some part of the gui that need this is getting weird.

 

Is there any solution to fix this small code portion ?

 

Here is the the whole function if it can help:

 

 

void OpenGL::Flush()
{
if ( m_iVertNum == 0 ) return;

glVertexPointer( 3, GL_FLOAT,  sizeof(Vertex), (void*) &m_Vertices[0].x );
glEnableClientState( GL_VERTEX_ARRAY );

// This 2 lines make the weird rendering artifact
glColorPointer( 4, GL_UNSIGNED_BYTE, sizeof(Vertex), (void*)&m_Vertices[0].r );
glEnableClientState( GL_COLOR_ARRAY );

glTexCoordPointer( 2, GL_FLOAT, sizeof(Vertex), (void*) &m_Vertices[0].u );
glEnableClientState( GL_TEXTURE_COORD_ARRAY );

glDrawArrays( GL_TRIANGLES, 0, (GLsizei) m_iVertNum );

m_iVertNum = 0;
glFlush();
}

 

Thanks !

[Josh]

All those calls to glEnableClientState() should have a corresponding call to glDisableClientState after the call to glDrawArrays().

[franck22000]

Thanks a lot Josh it is working now !