glTexImage2D = no texture

There are a quite a few posts on glTexImage2D but the only one that was my problem remained unanswered so I will dare to ask it again... gluBuild2DMipmaps(...) works okay but glTexImage2D(...) doesn't render a texture onto my model at all. No errors and I've set GL_TEXTURE_MIN_FILTER correctly (I think).


void CRenderingDevice::Initialise(CPlatform *pPlatform)
{
	m_pPlatform = pPlatform;

	m_pPlatform->InitialiseOpenGL();

	// Ensure correct display of polygons
	glEnable(GL_CULL_FACE);
	glEnable(GL_DEPTH_TEST);
	glEnable(GL_TEXTURE_2D);	
	glDepthMask(GL_TRUE);

	glFrontFace(GL_CW);

	
	{//test code...
		GLfloat light_ambient[]= { 0.1f, 0.1f, 0.1f, 0.1f };
		GLfloat light_diffuse[]= { 1.0f, 1.0f, 1.0f, 0.0f };
		GLfloat light_specular[]= { 1.0f, 1.0f, 1.0f, 0.0f };

		GLfloat light_position[]= { 10.0f, 10.0f, 10.0f, 1.0f };

		glLightfv (GL_LIGHT1, GL_AMBIENT, light_ambient);
		glLightfv (GL_LIGHT1, GL_DIFFUSE, light_diffuse);
		glLightfv (GL_LIGHT1, GL_SPECULAR, light_specular);
		glLightfv (GL_LIGHT1, GL_POSITION, light_position);

		glEnable (GL_LIGHT1);
		glEnable (GL_LIGHTING);
	}

	// select modulate to mix texture with color for shading
	glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );

	glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
	glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );

	// the texture wraps over at the edges (repeat)
	glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
	glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );

	glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
}

...

void CRenderingDevice::DrawMesh(CMesh* pMesh)
{
	static GLuint texture = 0;
	GLenum error = GL_NO_ERROR;

	if (!texture)
	{
		glGenTextures(1, &texture);
		glBindTexture(GL_TEXTURE_2D, texture);
		gluBuild2DMipmaps(GL_TEXTURE_2D, 3, pMesh->m_pImage->m_iWidth, pMesh->m_pImage->m_iHeight, GL_RGB, GL_UNSIGNED_BYTE, pMesh->m_pImage->m_pData);
		//glTexImage2D(GL_TEXTURE_2D, 0, 3, pMesh->m_pImage->m_iWidth, pMesh->m_pImage->m_iHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, pMesh->m_pImage->m_pData);
		error=glGetError();
		if (error!=GL_NO_ERROR)
		{
			int parp = 1;
		}
	}
	glBindTexture(GL_TEXTURE_2D, texture);

	// draw the triangle
	glBegin(GL_TRIANGLES);

	for (unsigned int loop = 0; loop < pMesh->m_iNumIndicies; loop+=3)
	{
		glNormal3f(pMesh->m_pVertices[pMesh->m_wIndicies[loop]].m_vNormal.m_fX, pMesh->m_pVertices[pMesh->m_wIndicies[loop]].m_vNormal.m_fY, pMesh->m_pVertices[pMesh->m_wIndicies[loop]].m_vNormal.m_fZ);
		glTexCoord2d(pMesh->m_pVertices[pMesh->m_wIndicies[loop]].m_fU,pMesh->m_pVertices[pMesh->m_wIndicies[loop]].m_fV);
		glVertex3f(pMesh->m_pVertices[pMesh->m_wIndicies[loop]].m_vPosition.m_fX, pMesh->m_pVertices[pMesh->m_wIndicies[loop]].m_vPosition.m_fY, pMesh->m_pVertices[pMesh->m_wIndicies[loop]].m_vPosition.m_fZ);

		glNormal3f(pMesh->m_pVertices[pMesh->m_wIndicies[loop+1]].m_vNormal.m_fX, pMesh->m_pVertices[pMesh->m_wIndicies[loop+1]].m_vNormal.m_fY, pMesh->m_pVertices[pMesh->m_wIndicies[loop+1]].m_vNormal.m_fZ);
		glTexCoord2d(pMesh->m_pVertices[pMesh->m_wIndicies[loop+1]].m_fU,pMesh->m_pVertices[pMesh->m_wIndicies[loop+1]].m_fV);
		glVertex3f(pMesh->m_pVertices[pMesh->m_wIndicies[loop+1]].m_vPosition.m_fX, pMesh->m_pVertices[pMesh->m_wIndicies[loop+1]].m_vPosition.m_fY, pMesh->m_pVertices[pMesh->m_wIndicies[loop+1]].m_vPosition.m_fZ);

		glNormal3f(pMesh->m_pVertices[pMesh->m_wIndicies[loop+2]].m_vNormal.m_fX, pMesh->m_pVertices[pMesh->m_wIndicies[loop+2]].m_vNormal.m_fY, pMesh->m_pVertices[pMesh->m_wIndicies[loop+2]].m_vNormal.m_fZ);
		glTexCoord2d(pMesh->m_pVertices[pMesh->m_wIndicies[loop+2]].m_fU,pMesh->m_pVertices[pMesh->m_wIndicies[loop+2]].m_fV);
		glVertex3f(pMesh->m_pVertices[pMesh->m_wIndicies[loop+2]].m_vPosition.m_fX, pMesh->m_pVertices[pMesh->m_wIndicies[loop+2]].m_vPosition.m_fY, pMesh->m_pVertices[pMesh->m_wIndicies[loop+2]].m_vPosition.m_fZ);
	}

	glEnd();

	// restore the previous transformation
	glMatrixMode(GL_MODELVIEW);
	glPopMatrix();

	glEnd();
}

Thanks, Andy

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