terrain texture splatting

[irruser]

this is with irrlicht v.1.5.
im using jarheads shader [http://irrlicht.sourceforge.net/phpBB2/ ... ght=normal] for texture splatting on my terrain except when rendered the terrain texture shows no detail only the colour of the texture. i think that this is becuase the texture is being repeated to many times but dont know how to go about fixing it.
this is my shader call back code.

Code: Select all

		//this is our services driver
		IVideoDriver* driver = services->getVideoDriver();

		//ok here is where we set the constants for the shaders
        core::matrix4 view_proj_matrix;

		view_proj_matrix = driver->getTransform(video::ETS_PROJECTION);

		view_proj_matrix *= driver->getTransform(video::ETS_VIEW);

		view_proj_matrix *= driver->getTransform ( video::ETS_WORLD );

	    view_proj_matrix.getTransposed();

		services->setVertexShaderConstant("matViewProjection",view_proj_matrix.pointer(),16);

and this is how the effect is being applied.

Code: Select all

scene::ITerrainSceneNode* terrain = smgr->addTerrainSceneNode(
		"../../media/terrain-heightmap.bmp",
		0,					// parent node
		-1,					// node id
		core::vector3df(0.f, 0.f, 0.f),		// position
		core::vector3df(0.f, 0.f, 0.f),		// rotation
		core::vector3df(40.f, 4.4f, 40.f),	// scale
		video::SColor ( 255, 255, 255, 255 ),	// vertexColor
		5,					// maxLOD
		scene::ETPS_17,				// patchSize
		4					// smoothFactor
		);

	terrain->setMaterialFlag(video::EMF_LIGHTING, false);

	terrain->setMaterialTexture(0,
			driver->getTexture("../../media/alphamap.png"));
	terrain->setMaterialTexture(1,
			driver->getTexture("../../media/textureOne.jpg"));
	terrain->setMaterialTexture(2,
			driver->getTexture("../../media/textureTwo.jpg"));
	terrain->setMaterialTexture(3,
			driver->getTexture("../../media/textureThree.jpg"));
	
	terrain->setMaterialType(EMT_TS);

any ideas welcome , thanks