Original Post
basically i am trying to render my terrain using vertex arrays. But when i try to multitexture only the ground texture is rendered (detailmap does not render). it works when i am using ordinary lists, but when i tried vertex arrays I can't get both texs to render no matter work. I've tried all sorts (plus most of the solutions posted on here) with little success. Here is my code i am using. I think this is the 'proper' way to do it but it doesn't seem to work. maybe i am missing something somewhere else??
void RenderVertexArray()
{
for(int z=0; z<m_iNumPatchesPerSide; z++)
for(int x=0; x<m_iNumPatchesPerSide; x++)
{
i = GetPatchNumber(x, z);
if( m_bpPatchVisible )
{
iNumIndices = m_iNumIndices[ m_pPatches[GetPatchNumber(x, z)].m_iLOD ];
// Setup first tex coords (ground)
glClientActiveTextureARB( GL_TEXTURE0_ARB );
glEnableClientState( GL_TEXTURE_COORD_ARRAY );
glTexCoordPointer(2, GL_FLOAT, sizeof(GeoTex), m_vTex + (m_iNumVertsPerPatch * i));
// setup 2nd tex coords (detailmap)
glClientActiveTextureARB( GL_TEXTURE1_ARB );
glEnableClientState( GL_TEXTURE_COORD_ARRAY );
glTexCoordPointer(2, GL_FLOAT, sizeof(GeoTex), m_vTex2 + (m_iNumVertsPerPatch * i));
// bind ground tex
glActiveTextureARB( GL_TEXTURE0_ARB );
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, m_Texture.GetID() );
// bind detail tex
glActiveTextureARB( GL_TEXTURE1_ARB );
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, m_DetailMap.GetID() );
glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB );
glTexEnvi( GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 2 );
glColorPointer(3, GL_UNSIGNED_BYTE, sizeof(GeoNorm), m_vNormal + (m_iNumVertsPerPatch * i) );
glVertexPointer(3, GL_FLOAT, sizeof(GeoVertex), m_vVertices + (m_iNumVertsPerPatch * i) );
glDrawElements( GL_TRIANGLES, iNumIndices, GL_UNSIGNED_SHORT, usIndices);
}
}
glDisable( GL_BLEND );
// unbind detail tex
glActiveTextureARB( GL_TEXTURE1_ARB );
glDisable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, 0 );
// unbind ground tex
glActiveTextureARB( GL_TEXTURE0_ARB );
glDisable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, 0 );
}