软件光栅化渲染器(四)

加入了背面剔除

//背面剔除
    void RemoveBackfaceTriangle()
    {
        for (int i = ; i < objectListCount; i++)
        {
            for (int j = ; j < objecetList[i]->triangleCount; j++)
            {
                Vector3D v1 = objecetList[i]->triangleList[j].newPos[] - objecetList[i]->triangleList[j].newPos[];
                Vector3D v2 =  objecetList[i]->triangleList[j].newPos[] - objecetList[i]->triangleList[j].newPos[];
                //法线
                Vector3D normal;
                VectorCross(normal, v1, v2);

                Vector3D direction = objecetList[i]->triangleList[j].newPos[] - camera->GetPosition();

                float dot = VectorDot(direction, normal);

                if (dot <= f)
                {
                    objecetList[i]->triangleList[j].State = TRIANGLE_BACKFACE;
                }
            }
        }
    }
           

效果图

项目Github地址