private static void setUpStates() {
glShadeModel(GL_SMOOTH);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glLightModel(
GL_LIGHT_MODEL_AMBIENT,
BufferTools.asFlippedFloatBuffer(new float[] {0.05f, 0.05f, 0.05f, 1f}));
glLight(GL_LIGHT0, GL_POSITION, BufferTools.asFlippedFloatBuffer(new float[] {0, 0, 0, 1}));
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT, GL_DIFFUSE);
glColor3f(0.4f, 0.27f, 0.17f);
glMaterialf(GL_FRONT, GL_SHININESS, 10f);
if (GLContext.getCapabilities().GL_ARB_depth_clamp) {
glEnable(ARBDepthClamp.GL_DEPTH_CLAMP);
}
}
private static void render() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
camera.applyTranslations();
glUseProgram(currentShaderProgram);
glLight(
GL_LIGHT0,
GL_POSITION,
BufferTools.asFlippedFloatBuffer(camera.x(), camera.y(), camera.z(), 1));
glDrawArrays(GL_TRIANGLES, 0, model.faces.size() * 3);
}
private static void setUpVBOs() {
int[] vbos;
try {
model = OBJLoader.loadModel(new File(MODEL_LOCATION));
int vboVertexHandle = glGenBuffers();
int vboNormalHandle = glGenBuffers();
FloatBuffer vertices = BufferTools.reserveData(model.faces.size() * 9);
FloatBuffer normals = BufferTools.reserveData(model.faces.size() * 9);
for (Face face : model.faces) {
vertices.put(BufferTools.asFloats(model.vertices.get((int) face.vertex.x - 1)));
vertices.put(BufferTools.asFloats(model.vertices.get((int) face.vertex.y - 1)));
vertices.put(BufferTools.asFloats(model.vertices.get((int) face.vertex.z - 1)));
normals.put(BufferTools.asFloats(model.normals.get((int) face.normal.x - 1)));
normals.put(BufferTools.asFloats(model.normals.get((int) face.normal.y - 1)));
normals.put(BufferTools.asFloats(model.normals.get((int) face.normal.z - 1)));
}
vertices.flip();
normals.flip();
glBindBuffer(GL_ARRAY_BUFFER, vboVertexHandle);
glBufferData(GL_ARRAY_BUFFER, vertices, GL_STATIC_DRAW);
glEnableVertexAttribArray(attributeVertex);
glVertexAttribPointer(attributeVertex, 3, false, 0, vertices);
glBindBuffer(GL_ARRAY_BUFFER, vboNormalHandle);
glEnableVertexAttribArray(attributeNormal);
glBufferData(GL_ARRAY_BUFFER, normals, GL_STATIC_DRAW);
glNormalPointer(GL_FLOAT, 0, 0L);
// TODO: This really isn't finished yet. :-(
} catch (FileNotFoundException e) {
e.printStackTrace();
cleanUp();
System.exit(1);
} catch (IOException e) {
e.printStackTrace();
cleanUp();
System.exit(1);
}
}