Debug Graphics: Show normals as lines

nehon · February 12, 2016, 3:24pm

        //mesh is the mesh for which you wan to see tbn
        Geometry debug = new Geometry("Debug normals",  TangentBinormalGenerator.genTbnLines(mesh, 0.08f)
        );
        Material debugMat = assetManager.loadMaterial("Common/Materials/VertexColor.j3m");
        debug.setMaterial(debugMat);
        debug.setCullHint(Spatial.CullHint.Never);
        debug.getLocalTranslation().set(translation);
        rootNode.attachChild(debug);

source in

github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-examples/src/main/java/jme3test/light/TestTangentGen.java#L95


private void addMesh(String name, Mesh mesh, Vector3f translation) {
    TangentBinormalGenerator.generate(mesh);
    Geometry testGeom = new Geometry(name, mesh);
    Material mat = assetManager.loadMaterial("Textures/BumpMapTest/Tangent.j3m");
    testGeom.setMaterial(mat);
    testGeom.getLocalTranslation().set(translation);
    rootNode.attachChild(testGeom);
    Geometry debug = new Geometry(
            "Debug " + name,
            TangentBinormalGenerator.genTbnLines(mesh, 0.08f)
    );
    Material debugMat = assetManager.loadMaterial("Common/Materials/VertexColor.j3m");
    debug.setMaterial(debugMat);
    debug.setCullHint(Spatial.CullHint.Never);
    debug.getLocalTranslation().set(translation);
    rootNode.attachChild(debug);
}