raProceduralMaterial.cpp

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

namespace System
{
    raProceduralMaterial::raProceduralMaterial(raSmartPointer<raDirectX> dx, int frequenz,
       LPCSTR techniquename, int colorsSelection) : raMaterial(dx,
       "raEffects\\Noise.fx", techniquename)
    {
        m_pFreqVariable = NULL;
        m_Freq = frequenz;
        m_Bias = 0.5f;

        m_pPermutationsVariable = NULL;
        CreatePermutations();

        m_pHeightTexture = NULL;
        m_pHeightTextureSRV = NULL;
        m_ptxHeight = NULL;
        m_ColorsSelection = colorsSelection;
    }

    raProceduralMaterial::raProceduralMaterial(raSmartPointer<raDirectX> dx,
        int frequenz, LPCSTR effectFilename,
        LPCSTR techniquename, int colorsSelection): raMaterial(dx,
        effectFilename, techniquename)
    {
        m_pFreqVariable = NULL;
        m_Freq = frequenz;
        m_Bias = 0.4f;

        m_pPermutationsVariable = NULL;
        CreatePermutations();

        m_pHeightTexture = NULL;
        m_pHeightTextureSRV = NULL;
        m_ptxHeight = NULL;
        m_ColorsSelection = colorsSelection;
    }

    void raProceduralMaterial::CreatePermutations()
    {
        for(int i = 0; i < 256; i++)
        {
            m_pPermutations[i] = rand() % 8;
        }

        if(m_pPermutationsVariable)
            m_pPermutationsVariable->SetIntArray(m_pPermutations, 0, 256); //muss nicht in jedem Frame neu gemacht werden
    }

    bool raProceduralMaterial::Create()
    {
        raMaterial::Create();

        m_pFreqVariable = m_pEffect->
            GetVariableByName("g_freq")->AsScalar();

        m_pBiasVariable = m_pEffect->
            GetVariableByName("g_bias")->AsScalar();

        m_pPermutationsVariable = m_pEffect->
            GetVariableByName("g_indices" )->AsScalar();
        m_pPermutationsVariable->SetIntArray(m_pPermutations, 0, 256); //muss nicht in jedem Frame neu gemacht werden

        CreateHeightTexture();
        m_ptxHeight = m_pEffect->
            GetVariableByName("g_txColorsFromHeight" )->AsShaderResource();
        m_ptxHeight->SetResource(m_pHeightTextureSRV);

        return true;
    }

    bool raProceduralMaterial::Destroy()
    {
        raMaterial::Destroy();
        SAFE_RELEASE(m_pHeightTexture);
        SAFE_RELEASE(m_pHeightTextureSRV);

        return true;
    }

    void raProceduralMaterial::Setup()
    {
        m_pFreqVariable->SetInt(m_Freq);
        m_pBiasVariable->SetFloat(m_Bias);
    }

    void raProceduralMaterial::CreateHeightTexture()
    {
        raColor data[5];
        switch(m_ColorsSelection)
        {
        case 0:
            {
                //Mond (weiss)
                data[0] = raColor(1.0f, 1.0f, 1.0f, 1.0f);
                data[1] = raColor(1.0f, 1.0f, 1.0f, 1.0f);
                data[2] = raColor(1.0f, 1.0f, 1.0f, 1.0f);
                data[3] = raColor(1.0f, 1.0f, 1.0f, 1.0f);
                data[4] = raColor(1.0f, 1.0f, 1.0f, 1.0f);
            }
            break;
        case 3:
            {
                //Mars
                data[0] = raColor(0.6f, 0.5f, 0.4f, 1.0f);
                data[1] = raColor(0.6f, 0.25f, 0.2f, 1.0f);
                data[2] = raColor(0.6f, 0.4f, 0.05f, 1.0f);
                data[3] = raColor(0.6f, 0.4f, 0.4f, 1.0f);
                data[4] = raColor(0.9f, 0.8f, 0.7f, 1.0f);
            }
            break;
        case 4:
            {
                //Wolken
                data[0] = raColor(0.1f, 0.0f, 0.9f, 1.0f); //hellblau
                data[1] = raColor(0.0f, 0.0f, 0.9f, 1.0f); //hellblau
                data[2] = raColor(0.9f, 0.9f, 1.0f, 1.0f); //hellblau
                data[3] = raColor(0.9f, 0.9f, 0.9f, 1.0f); //schneeweiß             data[4] = raColor(0.7f, 0.7f, 0.7f, 1.0f); //hellgrau
            }
            break;
        default:
            {
            //Erde
            data[0] = raColor(0.0f, 0.0f, 0.8f, 1.0f); //blau
            data[1] = raColor(0.0f, 0.2f, 0.6f, 1.0f); //blau
            data[2] = raColor(0.0f, 0.5f, 0.05f, 1.0f); //grün
            data[3] = raColor(0.5f, 0.4f, 0.4f, 1.0f); //braun
            data[4] = raColor(0.9f, 0.9f, 0.9f, 1.0f); //schneeweiß
         }
            break;
        }
        D3D11_TEXTURE1D_DESC dstex;
        dstex.Width = 5;
        dstex.MipLevels = 1;
        dstex.Format = DXGI_FORMAT_R32G32B32A32_FLOAT;
        dstex.Usage = D3D11_USAGE_DEFAULT;
        dstex.BindFlags = D3D11_BIND_SHADER_RESOURCE;
        dstex.CPUAccessFlags = 0;
        dstex.MiscFlags = 0;
        dstex.ArraySize = 1;
        D3D11_SUBRESOURCE_DATA InitData;
        InitData.pSysMem = (float*) data;
        InitData.SysMemPitch = 4 * 4 * sizeof(float);
        InitData.SysMemSlicePitch = 4 * 4 * sizeof(float);
        m_dx->GetDevice()->CreateTexture1D(&dstex, &InitData, &m_pHeightTexture);

        D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc;
        ZeroMemory( &SRVDesc, sizeof(SRVDesc) );
        SRVDesc.Format = dstex.Format;
        SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE1D;
        SRVDesc.Texture2D.MipLevels = dstex.MipLevels;
        m_dx->GetDevice()->CreateShaderResourceView(m_pHeightTexture, &SRVDesc,
            &m_pHeightTextureSRV);
    }
};
                data[4] = raColor(0.7f, 0.7f, 0.7f, 1.0f); //hellgrau
            }
            break;
        default:
            {
            //Erde
            data[0] = raColor(0.0f, 0.0f, 0.8f, 1.0f); //blau
            data[1] = raColor(0.0f, 0.2f, 0.6f, 1.0f); //blau
            data[2] = raColor(0.0f, 0.5f, 0.05f, 1.0f); //grün
            data[3] = raColor(0.5f, 0.4f, 0.4f, 1.0f); //braun
            data[4] = raColor(0.9f, 0.9f, 0.9f, 1.0f); //schneeweiß         }
            break;
        }
        D3D11_TEXTURE1D_DESC dstex;
        dstex.Width = 5;
        dstex.MipLevels = 1;
        dstex.Format = DXGI_FORMAT_R32G32B32A32_FLOAT;
        dstex.Usage = D3D11_USAGE_DEFAULT;
        dstex.BindFlags = D3D11_BIND_SHADER_RESOURCE;
        dstex.CPUAccessFlags = 0;
        dstex.MiscFlags = 0;
        dstex.ArraySize = 1;
        D3D11_SUBRESOURCE_DATA InitData;
        InitData.pSysMem = (float*) data;
        InitData.SysMemPitch = 4 * 4 * sizeof(float);
        InitData.SysMemSlicePitch = 4 * 4 * sizeof(float);
        m_dx->GetDevice()->CreateTexture1D(&dstex, &InitData, &m_pHeightTexture);

        D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc;
        ZeroMemory( &SRVDesc, sizeof(SRVDesc) );
        SRVDesc.Format = dstex.Format;
        SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE1D;
        SRVDesc.Texture2D.MipLevels = dstex.MipLevels;
        m_dx->GetDevice()->CreateShaderResourceView(m_pHeightTexture, &SRVDesc,
            &m_pHeightTextureSRV);
    }
};
            }
            break;
        }
        D3D11_TEXTURE1D_DESC dstex;
        dstex.Width = 5;
        dstex.MipLevels = 1;
        dstex.Format = DXGI_FORMAT_R32G32B32A32_FLOAT;
        dstex.Usage = D3D11_USAGE_DEFAULT;
        dstex.BindFlags = D3D11_BIND_SHADER_RESOURCE;
        dstex.CPUAccessFlags = 0;
        dstex.MiscFlags = 0;
        dstex.ArraySize = 1;
        D3D11_SUBRESOURCE_DATA InitData;
        InitData.pSysMem = (float*) data;
        InitData.SysMemPitch = 4 * 4 * sizeof(float);
        InitData.SysMemSlicePitch = 4 * 4 * sizeof(float);
        m_dx->GetDevice()->CreateTexture1D(&dstex, &InitData, &m_pHeightTexture);

        D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc;
        ZeroMemory( &SRVDesc, sizeof(SRVDesc) );
        SRVDesc.Format = dstex.Format;
        SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE1D;
        SRVDesc.Texture2D.MipLevels = dstex.MipLevels;
        m_dx->GetDevice()->CreateShaderResourceView(m_pHeightTexture, &SRVDesc,
            &m_pHeightTextureSRV);
    }
};