@Override
public void init() {
shaderProgram.init(gl);
shaderProgram.bind();
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.glClearDepth(1.0f);
gl.glEnable(GL.GL_DEPTH_TEST);
gl.glEnable(GL.GL_CULL_FACE);
projectionMatrix.init(gl, shaderProgram.getUniformLocation("u_projectionMatrix"));
modelViewMatrix.init(gl, shaderProgram.getUniformLocation("u_modelViewMatrix"));
normalMatrix.init(gl, shaderProgram.getUniformLocation("u_normalMatrix"));
light.init(
gl,
shaderProgram.getUniformLocation("u_light.direction"),
shaderProgram.getUniformLocation("u_light.ambientColor"),
shaderProgram.getUniformLocation("u_light.diffuseColor"),
shaderProgram.getUniformLocation("u_light.specularColor"));
material.init(
gl,
shaderProgram.getUniformLocation("u_material.ambientColor"),
shaderProgram.getUniformLocation("u_material.diffuseColor"),
shaderProgram.getUniformLocation("u_material.specularColor"),
shaderProgram.getUniformLocation("u_material.specularExponent"));
model.init(
gl,
shaderProgram.getAttribLocation("a_position"),
shaderProgram.getAttribLocation("a_normal"));
}
@Override
public void reshape(final int x, final int y, final int width, final int height) {
gl.glViewport(0, 0, width, height);
projectionMatrix.loadIdentity();
projectionMatrix.perspective(40f, aspect, 1.0f, 100.0f);
projectionMatrix.bind();
}
@Override
public void display() {
gl.glClear(GL4.GL_COLOR_BUFFER_BIT | GL4.GL_DEPTH_BUFFER_BIT);
// Initialize with the identity matrix ...
modelMatrix.loadIdentity();
// Create the view matrix.
viewMatrix.loadIdentity();
viewMatrix.lookAt(0.0f, 0.0f, 5.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
// The calculations are done in camera / view space.
// So pass the view matrix, which is a rigid body transform.
normalMatrix.extract(viewMatrix);
// MV = V * M (M is identity)
modelViewMatrix.multiply(viewMatrix, modelMatrix);
modelViewMatrix.bind();
normalMatrix.bind();
light.setDirOrPos(Matrix4.multiplyVector3(viewMatrix.getMatrix(), light.getDirOrPos()));
light.bind();
material.bind();
model.bind();
model.draw(GL4.GL_TRIANGLES);
gl.glFlush();
}