[문제해결]opengl 구체 그리는 소스인데..

{
		m_Stacks = 50;
		m_Slices = 50;
		vertexSize = 3 * ((m_Slices * 2 + 2) * m_Stacks);
		_vertex = new GLfloat[vertexSize];
		normalSize = vertexSize;
		_normal = new GLfloat[normalSize];
		textureSize = 2 * ((m_Slices * 2 + 2) * m_Stacks);
		_texCoord = new GLfloat[textureSize];
		colorSize = (4 * (m_Slices * 2 + 2) * m_Stacks);
		_colors = new GLfloat[colorSize];
		indiceSize = 1 * ((m_Slices * 2 + 2) * m_Stacks);
		_indices = new GLushort[indiceSize];
		int phiIdx, thetaIdx;
 
		for (phiIdx = 0; phiIdx < m_Stacks; phiIdx++){
 
			GLfloat phi0 = (GLfloat)PI * ((GLfloat)(phiIdx + 0) * (1.0f / (GLfloat)(m_Stacks)) - 0.5f);
			GLfloat phi1 = (GLfloat)PI * ((GLfloat)(phiIdx + 1) * (1.0f / (GLfloat)(m_Stacks)) - 0.5f);
 
			GLfloat cosPhi0 = (GLfloat)cos(phi0);
			GLfloat sinPhi0 = (GLfloat)sin(phi0);
			GLfloat cosPhi1 = (GLfloat)cos(phi1);
			GLfloat sinPhi1 = (GLfloat)sin(phi1);
 
			GLfloat cosTheta, sinTheta;
 
			for (thetaIdx = 0; thetaIdx < m_Slices; thetaIdx++){
				GLfloat theta = (GLfloat)(-2.0f*(GLfloat)PI*((GLfloat)thetaIdx)*(1.0f / (GLfloat)(m_Slices - 1.0f)));
				cosTheta = (GLfloat)cos(theta);
				sinTheta = (GLfloat)sin(theta);
 
				_vertex[vIndex + 0] = m_Scale*cosPhi0*cosTheta;
				_vertex[vIndex + 1] = m_Scale*(sinPhi0*m_Squash);
				_vertex[vIndex + 2] = m_Scale*(cosPhi0*sinTheta);
 
				_vertex[vIndex + 3] = m_Scale*cosPhi1*cosTheta;
				_vertex[vIndex + 4] = m_Scale*(sinPhi1*m_Squash);
				_vertex[vIndex + 5] = m_Scale*(cosPhi1*sinTheta);
 
				GLfloat texX = (GLfloat)thetaIdx * (1.0f / (GLfloat)(m_Slices - 1));
				_texCoord[tIndex + 0] = texX;
				_texCoord[tIndex + 1] = (GLfloat)(phiIdx + 0) * (1.0f / (GLfloat)(m_Stacks));
				_texCoord[tIndex + 2] = texX;
				_texCoord[tIndex + 3] = (GLfloat)(phiIdx + 1) * (1.0f / (GLfloat)(m_Stacks));
 
				vIndex += 2 * 3;
				tIndex += 2 * 2;
			}
 
			_vertex[vIndex + 0] = _vertex[vIndex + 3] = _vertex[vIndex - 3];
			_vertex[vIndex + 1] = _vertex[vIndex + 4] = _vertex[vIndex - 2];
			_vertex[vIndex + 2] = _vertex[vIndex + 5] = _vertex[vIndex - 1];
 
			_texCoord[tIndex + 0] = _texCoord[tIndex + 2] = _texCoord[tIndex - 2];
			_texCoord[tIndex + 1] = _texCoord[tIndex + 3] = _texCoord[tIndex - 1];
		}
	}