raSkyBox.cpp

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#include "..\include\raMain.h"

namespace System
{
    raSkyBox::raSkyBox(raSmartPointer<raDirectX> dx, raMaterial* pMaterial) : raEntity(dx, pMaterial)
    {
        m_nVertices = 8;
        m_nIndices = 36;

        m_DrawOder = 0;
        m_bDepthDisable = true;
    }
    raSkyBox::raSkyBox(raSmartPointer<raDirectX> dx, LPCSTR texFileName) :
    raEntity(dx, new raTexturedMaterial(dx.get(), "raEffects\\SkyBoxEffect.fx", "RenderSkyBox",
             texFileName, "g_SkyboxTexture"))
    {
        m_nVertices = 8;
        m_nIndices = 36;

        m_DrawOder = 0;
        m_bDepthDisable = true;
    }
    void raSkyBox::SetupVertices()
    {
        m_pVertices = new CUBEMAPVERTEX[m_nVertices];
        m_pVertices[0].position.x = -1.0f;
        m_pVertices[0].position.y = -1.0f;
        m_pVertices[0].position.z = -1.0f;

        m_pVertices[1].position.x = -1.0f;
        m_pVertices[1].position.y = 1.0f;
        m_pVertices[1].position.z = -1.0f;

        m_pVertices[2].position.x = 1.0f;
        m_pVertices[2].position.y = -1.0f;
        m_pVertices[2].position.z = -1.0f;

        m_pVertices[3].position.x = 1.0f;
        m_pVertices[3].position.y = 1.0f;
        m_pVertices[3].position.z = -1.0f;

        m_pVertices[4].position.x = -1.0f;
        m_pVertices[4].position.y = -1.0f;
        m_pVertices[4].position.z = 1.0f;

        m_pVertices[5].position.x = -1.0f;
        m_pVertices[5].position.y = 1.0f;
        m_pVertices[5].position.z = 1.0f;

        m_pVertices[6].position.x = 1.0f;
        m_pVertices[6].position.y = -1.0f;
        m_pVertices[6].position.z = 1.0f;

        m_pVertices[7].position.x = 1.0f;
        m_pVertices[7].position.y = 1.0f;
        m_pVertices[7].position.z = 1.0f;

        for(UINT i = 0; i < m_nVertices; i++)
        {
            m_pVertices[i].texcoord = m_pVertices[i].position;
        }
    }
    void raSkyBox::SetupIndices()
    {
        m_pIndices = new UINT16[m_nIndices];

        //vorn
        m_pIndices[0] = 0;
        m_pIndices[1] = 2;
        m_pIndices[2] = 1;
        m_pIndices[3] = 1;
        m_pIndices[4] = 2;
        m_pIndices[5] = 3;

        //hinten
        m_pIndices[6] = 4;
        m_pIndices[7] = 5;
        m_pIndices[8] = 6;
        m_pIndices[9] = 5;
        m_pIndices[10] = 7;
        m_pIndices[11] = 6;

        //links
        m_pIndices[12] = 4;
        m_pIndices[13] = 1;
        m_pIndices[14] = 5;
        m_pIndices[15] = 4;
        m_pIndices[16] = 0;
        m_pIndices[17] = 1;

        //rechts
        m_pIndices[18] = 2;
        m_pIndices[19] = 7;
        m_pIndices[20] = 3;
        m_pIndices[21] = 2;
        m_pIndices[22] = 6;
        m_pIndices[23] = 7;

        //unten
        m_pIndices[24] = 0;
        m_pIndices[25] = 4;
        m_pIndices[26] = 6;
        m_pIndices[27] = 0;
        m_pIndices[28] = 6;
        m_pIndices[29] = 2;

        //oben
        m_pIndices[30] = 1;
        m_pIndices[31] = 7;
        m_pIndices[32] = 5;
        m_pIndices[33] = 1;
        m_pIndices[34] = 3;
        m_pIndices[35] = 7;

        m_pSubsets[0].IndexStart = 0;
        m_pSubsets[0].IndexCount = m_nIndices;
    }
    void raSkyBox::SetupEffectVariables(const raMatrix& pView, const raMatrix& pProj,
                                          const raLight* pLight)
    {
        float zf = pProj.m43 / ( 1 - pProj.m33);
        float scale = 0.04f * zf;
        raMatrix mScale;
        mScale = raMatrixScaling(raVector3(scale, scale,scale));

        raMatrix worldTmp(mScale * m_World);
        raMatrix viewTmp(pView);

        viewTmp.m41 = 0;
        viewTmp.m42 = 0;
        viewTmp.m43 = 0;

        raMatrix mWorldView, mWorldViewProjection;
        mWorldView = worldTmp * viewTmp;
        mWorldViewProjection = mWorldView * pProj;

        for (DWORD matNo = 0; matNo < m_numMaterials; matNo++)
        {
            m_pMaterials[matNo]->SetupPerFrame(pLight);
            m_pMaterials[matNo]->SetupPerObject(worldTmp, mWorldView, mWorldViewProjection);
        }
    }
};