[OGRE-22] Lighting is incorrect when camera-relative rendering is enabled.

[paroj]

[reporter="spacegaier", created="Sat, 24 Nov 2012 19:52:36 +0100"]

Original reporter: myint

http://www.ogre3d.org/forums/viewtopic.php?f=4&t=60939

Original Mantis Ticket: http://www.ogre3d.org/mantis/view.php?id=360

[paroj]

[author="masterfalcon", created="Sat, 30 Mar 2013 08:15:13 +0100"]

I'm unable to reproduce this in the 1.9 branch. Can anyone else confirm?

[paroj]

[author="masterfalcon", created="Fri, 7 Jun 2013 07:04:26 +0200"]

Yeah, I believe this is fixed. You can paste this into BezierPatch.h to test.

BezierPatch.h

#ifndef __BezierPatch_H__
#define __BezierPatch_H__
#include "SdkSample.h"
using namespace Ogre;
using namespace OgreBites;
class _OgreSampleClassExport Sample_BezierPatch : public SdkSample
{
public:
    Sample_BezierPatch()
    {
        mInfo["Title"] = "Bezier Patch";
        mInfo["Description"] = "A demonstration of the Bezier patch support.";
        mInfo["Thumbnail"] = "thumb_bezier.png";
        mInfo["Category"] = "Geometry";
    }
protected:
    bool frameRenderingQueued(const FrameEvent& evt)
    {
for (unsigned int i = 0; i < 4; i++)
{
    topNode->setOrientation(Ogre::Quaternion(Ogre::Radian(Ogre::Degree(i * 90)),
     Ogre::Vector3(0, 0, 1)));
    Ogre::WindowEventUtilities::messagePump();
    mWindow->update();
    // Save to file for later comparison
    std::stringstream ss;
    ss << "render" << i << ".png";
    mWindow->writeContentsToFile(ss.str());
}
        return SdkSample::frameRenderingQueued(evt);
    }
    void setupContent()
    {
mSceneMgr->setCameraRelativeRendering(true);
mCamera->setPosition(0, 0, 200);
mCamera->lookAt(0, 0, 0);
mViewport->setBackgroundColour(Ogre::ColourValue(0., 0., .5));
mSceneMgr->setAmbientLight(Ogre::ColourValue(0.1, 0.1, 0.1));
topNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
Ogre::Light *light = mSceneMgr->createLight("light");
light->setType(Ogre::Light::LT_POINT);
Ogre::SceneNode *lightNode = topNode->createChildSceneNode();
lightNode->attachObject(light);
lightNode->setPosition(50., 0., 50.);
Ogre::Entity *cube = mSceneMgr->createEntity("cube", Ogre::SceneManager::PT_CUBE);
cube->setMaterialName("BaseWhite");
Ogre::SceneNode *cubeNode = lightNode->createChildSceneNode();
cubeNode->attachObject(cube);
cubeNode->setScale(.1, .2, .3);
Ogre::Entity *plane = mSceneMgr->createEntity("plane", Ogre::SceneManager::PT_PLANE);
plane->setMaterialName("BaseWhite");
Ogre::SceneNode *planeNode = topNode->createChildSceneNode();
planeNode->attachObject(plane);
Ogre::Entity *sphere = mSceneMgr->createEntity("sphere", Ogre::SceneManager::PT_SPHERE);
sphere->setMaterialName("BaseWhite");
Ogre::SceneNode *sphereNode = topNode->createChildSceneNode();
sphereNode->attachObject(sphere);
sphereNode->setScale(.5, .5, .5);
    }
    Ogre::SceneNode *topNode;
};
#endif

[paroj]

[author="scrawl", created="Tue, 3 Sep 2013 21:04:57 +0200"]

Pulled 1.9 today, I still get this problem when moving the camera, it looks like the (camera-space) light positions are lagging a frame behind.

[paroj]

[author="scrawl", created="Tue, 3 Sep 2013 21:07:23 +0200"]

Ah - the problem only happens when I'm attaching the camera to a bone.

[paroj]

[author="scrawl", created="Wed, 4 Sep 2013 16:21:06 +0200"]

Could you give a link to the commit that you believe fixed the original problems? That might give me a hint where to start looking why its still happening for bones.

[paroj]

[author="masterfalcon", created="Wed, 4 Sep 2013 16:50:51 +0200"]

I don't know specifically. I was just rechecking bugs and was not able to reproduce this one with the test case provided.

[paroj]

does not reproduce with 1.11.2