Function drawLine

examples/ExampleBrowser/OpenGLGuiHelper.cpp:64–83

	}

	virtual void drawLine(const btVector3& from1, const btVector3& to1, const btVector3& color1)
	{
		//float from[4] = {from1[0],from1[1],from1[2],from1[3]};
		//float to[4] = {to1[0],to1[1],to1[2],to1[3]};
		//float color[4] = {color1[0],color1[1],color1[2],color1[3]};
		//m_glApp->m_instancingRenderer->drawLine(from,to,color);
		if (m_currentLineColor != color1 || m_linePoints.size() >= BT_LINE_BATCH_SIZE)
		{
			flushLines();
			m_currentLineColor = color1;
		}
		MyDebugVec3 from(from1);
		MyDebugVec3 to(to1);

		m_linePoints.push_back(from);
		m_linePoints.push_back(to);

		m_lineIndices.push_back(m_lineIndices.size());
		m_lineIndices.push_back(m_lineIndices.size());
	}

	virtual void drawContactPoint(const btVector3& PointOnB, const btVector3& normalOnB, btScalar distance, int lifeTime, const btVector3& color)
	{