请教关于例子系统的纹理问题

Game_Cen

问题出现在我绘制粒子的时候它把我的地形问题的纹理也混合上去了。
粒子渲染前的状态设计：
           //关闭灯光
        m_pDevice->SetRenderState(D3DRS_LIGHTING, FALSE);
        //m_pDevice->SetRenderState( D3DRS_FOGENABLE, FALSE );
        m_pDevice->SetRenderState(D3DRS_POINTSPRITEENABLE,true);//指定当前实体将贴图设置到点精灵
        m_pDevice->SetRenderState(D3DRS_POINTSCALEENABLE,true);
        // m_pDevice->SetRenderState(D3DRS_POINTSIZE,FtoDw(10.0f));
        // m_pDevice->SetRenderState(D3DRS_POINTSIZE_MIN,FtoDw(0.0f));
        //距离系数
        m_pDevice->SetRenderState(D3DRS_POINTSCALE_A,FtoDw(0.0f));
        m_pDevice->SetRenderState(D3DRS_POINTSCALE_B,FtoDw(0.0f));
        m_pDevice->SetRenderState(D3DRS_POINTSCALE_C,FtoDw(1.f));

        m_pDevice->SetTextureStageState( 0 , D3DTSS_COLOROP,   D3DTOP_MODULATE );
        m_pDevice->SetTextureStageState( 0 , D3DTSS_COLORARG1, D3DTA_TEXTURE );
        m_pDevice->SetTextureStageState( 0 , D3DTSS_COLORARG2, D3DTA_DIFFUSE );
        m_pDevice->SetTextureStageState( 0 , D3DTSS_ALPHAOP,   D3DTOP_MODULATE );
        m_pDevice->SetTextureStageState( 0 , D3DTSS_ALPHAARG1, D3DTA_TEXTURE );
        m_pDevice->SetTextureStageState( 0 , D3DTSS_ALPHAARG2, D3DTA_DIFFUSE );
//         m_pDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
//         m_pDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1);

        m_pDevice->SetRenderState( D3DRS_ALPHABLENDENABLE, TRUE );
       
        m_pDevice->SetRenderState( D3DRS_SRCBLEND, D3DBLEND_SRCALPHA );
        m_pDevice->SetRenderState( D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA );
       
        //m_pDevice->SetRenderState( D3DRS_ZENABLE , false );
        m_pDevice->SetRenderState( D3DRS_ZWRITEENABLE , false );

地形渲染设计：
          m_pd3dDevice->SetRenderState(D3DRS_LIGHTING, false);
        m_pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
        m_pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
        m_pd3dDevice->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_WRAP);
        m_pd3dDevice->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_WRAP);
        m_pd3dDevice->SetTexture(0, m_pTex[0]);
        m_pd3dDevice->SetTextureStageState(0, D3DTSS_TEXCOORDINDEX, 0);
        m_pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1);
        m_pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);

        m_pd3dDevice->SetSamplerState(1, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
        m_pd3dDevice->SetSamplerState(1, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
        m_pd3dDevice->SetSamplerState(1, D3DSAMP_ADDRESSU, D3DTADDRESS_WRAP);
        m_pd3dDevice->SetSamplerState(1, D3DSAMP_ADDRESSV, D3DTADDRESS_WRAP);
        m_pd3dDevice->SetTexture(1, m_pTex[1]);
        m_pd3dDevice->SetTextureStageState(1, D3DTSS_TEXCOORDINDEX, 1);
        m_pd3dDevice->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_ADDSIGNED);
        m_pd3dDevice->SetTextureStageState(1, D3DTSS_COLORARG1, D3DTA_TEXTURE);
        m_pd3dDevice->SetTextureStageState(1, D3DTSS_COLORARG2, D3DTA_CURRENT);
地形用了多纹理混合，粒子绘制顶点格式为（D3DFVF_XYZ | D3DFVF_PSIZE | D3DFVF_DIFFUSE）。

我在想地形多纹理混合是不是有什么状态搞错了。



顺便问一下，在做混合是不关灯光的后果是什么，我怎么有时候关不关灯光好像结果没什么不一样。

rock77

做粒子Render之前SetTexture(0, NULL);

Game_Cen

  谢谢了啊
  原来真的是这样