Some questions about SimpleGrid

raygeee

15-02-2009 19:19:41

Hi,
I wrapped this great plugin to work with managed code (MHydrax 0.4a) and got most of it working but now I have some questions:

1. Is it normal that a SimpleGrid doesn't allow looking underwater? ProjectedGrid works fine but when I'm using SimpleGrid I can't see through the water, no caustics, no ground, no transparency... But if I move the camera underwater I can see the caustics, the ground, the sky, godrays... Refraction doesn't work too, which is kinda obvious. So the trees' relection looks a little bit strange when ending in the middle of the water.

2. How do you set up Hydrax with any Module NOT using a configuration file? I wasn't able to do that. All the ways I tried (setting different parameters) caused a crash when creating the Module inside Hydrax::create(). Working with unmanaged and managed code makes it very hard to find a bug or misusage because I always get the same AccessViolationException.

3. Is it possible to use more than one SimpleGrid?

Thanks and keep up the good work. Waiting for 0.5 ;-)

Xavyiy

17-02-2009 12:03:29

Hi!

1-All modules allows all hydrax features. You can just download the editor and open a .hdx file with simple grid to see(Or just switch to simple grid in water options window).
2-Something like this is the right way to set-up hydrax without using hydrax config files:

// Set our shader mode

		mHydrax->setShaderMode(Hydrax::MaterialManager::SM_HLSL);



		// Set components

		mHydrax->setComponents(

            static_cast<Hydrax::HydraxComponent>(Hydrax::HYDRAX_COMPONENT_SUN        |

                                                 Hydrax::HYDRAX_COMPONENT_FOAM       |

                                                 Hydrax::HYDRAX_COMPONENT_DEPTH      |

                                                 Hydrax::HYDRAX_COMPONENT_SMOOTH     |

                                                 Hydrax::HYDRAX_COMPONENT_CAUSTICS   |

												 Hydrax::HYDRAX_COMPONENT_UNDERWATER |

												 Hydrax::HYDRAX_COMPONENT_UNDERWATER_REFLECTIONS |

												 Hydrax::HYDRAX_COMPONENT_UNDERWATER_GODRAYS));



		// Set our module (Initial module)

		mHydrax->setModule(static_cast<Hydrax::Module::Module*>(ProjectedGridGeometryModuleVertex));

// Create water

        mHydrax->create();



// Adjust some options

        mHydrax->setPosition(Ogre::Vector3(1500,100,1500)); // Just for simple grid (Projected grid doesn't use it)

        mHydrax->setPlanesError(10.5);

        mHydrax->setDepthLimit(90);

        mHydrax->setSunPosition(mSunPosition[mCurrentSkyBox]);

        mHydrax->setSunColor(mSunColor[mCurrentSkyBox]);

        mHydrax->setNormalDistortion(0.075);

        mHydrax->setWaterColor(Ogre::Vector3(0.139765,0.359464,0.425373));

        mHydrax->setSmoothPower(5);

		mHydrax->setCausticsScale(135);

		mHydrax->setCausticsEnd(0.8);

		mHydrax->setCausticsPower(10.5);

        mHydrax->setFullReflectionDistance(99999997952);

		mHydrax->setGlobalTransparency(0);

3-No.. at the moment only one Hydrax instance is allowed(Wich means only a module at the same time).

Xavi