OpenGL ES Android Matrix Transformations

Question

I have a renderer implementing GLSurfaceView.Renderer interface; a subclass of GLSurfaceView and some classes representing my objects I want to draw. I have the code from ht

Answer 1

Note that you're not applying your projection matrix to the triangle you're drawing, that could cause problems.

Should probably be:

Matrix.multiplyMM(mMVMatrix, 0, mVMatrix, 0, mModelMatrix, 0);  
Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVMatrix, 0);