Method render

Engine/source/environment/VolumetricFog.cpp:1065–1180

}

void VolumetricFog::render(ObjectRenderInst *ri, SceneRenderState *state, BaseMatInstance *overrideMat)
{
   if (overrideMat || !mShapeLoaded || !isClientObject() || mResizing)
      return;

   PROFILE_SCOPE(VolumetricFog_Render);

   GFXTransformSaver saver;
   GFX->setVertexBuffer(mVB);
   GFX->setPrimitiveBuffer(mPB);

   MatrixF mat = getRenderTransform();
   mat.scale(mObjScale);
   GFX->multWorld(mat);

   GFX->setShader(mDeferredShader);
   GFX->setShaderConstBuffer(mPPShaderConsts);
   GFX->setStateBlock(mStateblock_preD);

   // Set all the shader consts...

   MatrixF xform(GFX->getProjectionMatrix());
   xform *= GFX->getViewMatrix();
   xform *= GFX->getWorldMatrix();

   mPPShaderConsts->setSafe(mPPModelViewProjSC, xform);

   const LinearColorF &sunlight = state->getAmbientLightColor();

   Point3F ambientColor(sunlight.red, sunlight.green, sunlight.blue);
   mShaderConsts->setSafe(mAmbientColorSC, ambientColor);

   GFXTextureObject *mDepthBuffer = mDepthBufferTarget ? mDepthBufferTarget->getTexture(0) : NULL;
   GFXTextureObject *mFrontBuffer = mFrontBufferTarget ? mFrontBufferTarget->getTexture(0) : NULL;

   GFX->pushActiveRenderTarget();

   //render backside to target mDepthBuffer
   z_buf->attachTexture(GFXTextureTarget::DepthStencil, GFXTextureTarget::sDefaultDepthStencil);
   z_buf->attachTexture(GFXTextureTarget::Color0, mDepthBuffer);

   GFX->setActiveRenderTarget(z_buf);
   GFX->clear(GFXClearStencil | GFXClearTarget , ColorI(0,0,0,0), 1.0f, 0);

   GFX->drawPrimitive(0);
   z_buf->resolve();

   //render frontside to target mFrontBuffer
   z_buf->attachTexture(GFXTextureTarget::DepthStencil, GFXTextureTarget::sDefaultDepthStencil);
   z_buf->attachTexture(GFXTextureTarget::Color0, mFrontBuffer);
   GFX->clear(GFXClearStencil | GFXClearTarget, ColorI(0, 0, 0, 0), 1.0f, 0);

   GFX->setStateBlock(mStateblock_preF);

   GFX->drawPrimitive(0);
   z_buf->resolve();

   GFX->popActiveRenderTarget();