What I will Learn here?:

​On this tutorial ​​we will learn how to render into a texture and then render that pre rendered text​ure as a bitmap.

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​Note:

Try "God Mode" F12 and check the 2D Frustrum View

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​Let's check our current main source tree, except the LIBs:

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Added source on White:

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​│   Applicationclass.cpp
│   Applicationclass.h
│   counter.h
│   main.cpp
│   main.h
│
├───camera
│       cameraClass.cpp
│       cameraClass.h
│       frustumClass.cpp
│       frustumClass.h​

│       lightClass.cpp
│       lightClass.h
│       positionClass.cpp
│       positionClass.h

│       RenderFrustumClass.cpp
│       RenderFrustumClass.h
│
├───game
│       playerClass.cpp
│       playerClass.h​
│​

├───graphics

│       renderTextureClass.cpp
│       renderTextureClass.h
│       spriteClass.cpp
│       spriteClass.h​

│       textClass.cpp
│       textClass.h
│       textFontClass.cpp
│       textFontClass.h
│
├───input
│       inputClass.cpp
│       inputClass.h
│
├───loader
│       objModelV2Class.cpp
│       objModelV2Class.h
│
├───shader
│       shaderClass.cpp
│       shaderClass.h
│

├───system
│       dx11Class.cpp
│       dx11class.h
│       SystemClass.cpp
│       SystemClass.h
│       xml_loader.cpp
│       xml_loader.h​

│
​└───terrain
        bitmapclass.cpp
        bitmapclass.h
        Minimapclass.cpp
        Minimapclass.h
        quadtreeClass.cpp
        quadtreeClass.h
        terrainClass.cpp
        terrainClass.h
        terrainManagerClass.cpp
        terrainManagerClass.h
​

​​​(main.h) ​

- Set for Chapter 15

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Initialization of Mini-map:

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We need also a new projection Matrix once we will not use a prespective view:

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    // [15] MINIMAP
    //-----------------------------------------------------------------------------------------    
    #if TUTORIAL_CHAP >= 15

    if(!m_TerrainManager.m_MiniMap.Initialize(g_DirectX11, &m_TerrainManager.m_Terrain[m_TerrainManager.active_terrain],
                                (float)(m_TerrainManager.m_Terrain[m_TerrainManager.active_terrain].m_terrainWidth - 1),
                                (float)(m_TerrainManager.m_Terrain[m_TerrainManager.active_terrain].m_terrainHeight - 1)))
        {MyMessageBox(L"Could not initialize the MiniMap object");return false;}

    g_DirectX11->GetProjectionMiniMapMatrix(g_projectionMiniMapMatrix);
    #endif//

 

Update our position after movements update in mini-map also:​

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#if TUTORIAL_CHAP >= 15 && defined (SCENE_MINIMAP)
    //The position of the user on the mini-map will then be accurately reflected each frame.
    // Update the location of the camera on the mini map.
    // --------------------------------------------------------------------------------------------
    for (UINT i=0; i < HowManyPlayers; i++)
    {
        #if TUTORIAL_CHAP >= 90
        if (m_player[i]->p_player.online && m_player[i]->p_player.faction == m_player[g_NetID]->p_player.faction) //if player online and from our faction
        #endif
        {
            posX = m_Position[i]->m_positionX;
            posZ = m_Position[i]->m_positionZ;

            m_TerrainManager.m_MiniMap.PositionUpdate(i, posX, posZ);
            m_TerrainManager.m_MiniMap.m_pointRotation[i] = (int)m_Position[i]->m_rotationY; //need to update rotY
        }
    }
#endif//​

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Render the Mini-map:​

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    // SPRITES: MINI MAP
    //----------------------------------------------------------------------------------------------------------------------
#if TUTORIAL_CHAP >= 15 && defined(SCENE_MINIMAP)
    IF_NOT_RETURN_FALSE ( m_TerrainManager.m_MiniMap.Render(pContext) );
#endif//
 

 

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​​​​Project Code:

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http://woma.no-ip.org/woma/WoMA_PartII_Chap15.zip​

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​What's next?

On next tutorial we will see how to Render the Respective Mini-Map of this Big Map