Scaling a parallax map texture

[itsagam]

I am using parallax mapping and have a brick texture on the surface of a wall. The problem is it appears simply too large and I cannot scale it down. The way I scale down textures is

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getMaterial(0).getTextureMatrix(0).setScale()/setTextureScale()/setTextureScaleCenter()

But these have no effect at all as long as the material type is EMT_PARALLAX_MAP_SOLID (as soon as I change the material type to EMT_SOLID, the bricks have the size I want).

What I have tried so far:

- Using setScale()/setTextureScale()/setTextureScaleCenter()
- Scaling the mesh itself with mesh->setScale() and smgr->getMeshManipulator()->scale()
- Programatically resizing the texture by ITexture->IImage->copyToScaling->IImage->ITexture
- Manually resizing the texture image to 1/4th of the size

No matter what I do, the texture always has the same size.

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        IAnimatedMesh* mesh = smgr->getMesh(data->get<stringc>("world.map.model"));
        IMesh* tangentMesh = smgr->getMeshManipulator()->createMeshWithTangents(mesh->getMesh(0));
        
        mapNode = smgr->addOctreeSceneNode(tangentMesh);
        mapNode->setMaterialFlag(EMF_LIGHTING, false);
        mapNode->setPosition(data->get<vector3df>("world.map.position"));
        mapNode->setRotation(data->get<vector3df>("world.map.rotation"));
        mapNode->setScale(data->get<vector3df>("world.map.scale"));
        
        ITexture* texture = driver->getTexture("Data/textures/bricks/brick.png");
        mapNode->getMaterial(1).setTexture(0, texture);     
        ITexture* normalMap = driver->getTexture("Data/textures/bricks/brick_height.png");
        mapNode->getMaterial(1).getTextureMatrix(0).setScale(6.0f);
        driver->makeNormalMapTexture(normalMap, 9.0f);
        mapNode->getMaterial(1).setTexture(1, normalMap);
        mapNode->getMaterial(1).getTextureMatrix(1).setScale(6.0f);
        mapNode->getMaterial(1).MaterialType = EMT_PARALLAX_MAP_SOLID;
        mapNode->getMaterial(1).MaterialTypeParam = 0.035f;
 
        tangentMesh->drop();
        smgr->addLightSceneNode(0, vector3df(0, 0, 0), SColorf(1.0f, 1.0f, 1.0f), 1800.0f);
 

I am using Irrlicht SVN 4293

[Mel]

Another way you can try is to alter the mapping coordinates of the exported model, if posible.

[hybrid]

Yes, unfortunately, the shaders used for the normal and parallax mapping in Irrlicht only support very limited features. Thus, no support for texture matrices. You could try and add this to the shader sources (needs to recompile Irrlicht) or transform the texture coords manually. IIRC, we also have a function in mesh manipulator that scales the texture coords once in the vertex structures.