//-----------------------------------------------------------------------
void FFPFog::updateGpuProgramsParams(Renderable* rend, Pass* pass, const AutoParamDataSource* source,
const LightList* pLightList)
{
if (mFogMode == FOG_NONE)
return;
FogMode fogMode;
ColourValue newFogColour;
Real newFogStart, newFogEnd, newFogDensity;
if (mPassOverrideParams)
{
fogMode = pass->getFogMode();
newFogColour = pass->getFogColour();
newFogStart = pass->getFogStart();
newFogEnd = pass->getFogEnd();
newFogDensity = pass->getFogDensity();
}
else
{
SceneManager* sceneMgr = ShaderGenerator::getSingleton().getActiveSceneManager();
fogMode = sceneMgr->getFogMode();
newFogColour = sceneMgr->getFogColour();
newFogStart = sceneMgr->getFogStart();
newFogEnd = sceneMgr->getFogEnd();
newFogDensity = sceneMgr->getFogDensity();
}
// Set fog properties.
setFogProperties(fogMode, newFogColour, newFogStart, newFogEnd, newFogDensity);
mFogParams->setGpuParameter(mFogParamsValue);
mFogColour->setGpuParameter(mFogColourValue);
}
//-----------------------------------------------------------------------
bool FFPFog::preAddToRenderState(RenderState* renderState, Pass* srcPass, Pass* dstPass)
{
FogMode fogMode;
ColourValue newFogColour;
Real newFogStart, newFogEnd, newFogDensity;
if (srcPass->getFogOverride())
{
fogMode = srcPass->getFogMode();
newFogColour = srcPass->getFogColour();
newFogStart = srcPass->getFogStart();
newFogEnd = srcPass->getFogEnd();
newFogDensity = srcPass->getFogDensity();
mPassOverrideParams = true;
}
else
{
SceneManager* sceneMgr = ShaderGenerator::getSingleton().getActiveSceneManager();
if (sceneMgr == NULL)
{
fogMode = FOG_NONE;
newFogColour = ColourValue::White;
newFogStart = 0.0;
newFogEnd = 0.0;
newFogDensity = 0.0;
}
else
{
fogMode = sceneMgr->getFogMode();
newFogColour = sceneMgr->getFogColour();
newFogStart = sceneMgr->getFogStart();
newFogEnd = sceneMgr->getFogEnd();
newFogDensity = sceneMgr->getFogDensity();
}
mPassOverrideParams = false;
}
// Set fog properties.
setFogProperties(fogMode, newFogColour, newFogStart, newFogEnd, newFogDensity);
// Override scene fog since it will happen in shader.
dstPass->setFog(true, FOG_NONE, newFogColour, newFogDensity, newFogStart, newFogEnd);
return true;
}
