public void setMatrices(GL10 gl) {
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
GLU.gluPerspective(gl, fieldOfView, aspectRatio, near, far);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
GLU.gluLookAt(
gl, position.x, position.y, position.z, lookAt.x, lookAt.y, lookAt.z, up.x, up.y, up.z);
}
public void setMatrices(GL10 gl) {
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
GLU.gluPerspective(gl, fieldOfView, aspectRatio, near, far);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glRotatef(-pitch, 1, 0, 0);
gl.glRotatef(-yaw, 0, 1, 0);
gl.glTranslatef(-position.x, -position.y, -position.z);
}
protected void resize(GL10 gl, int w, int h) {
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
gl.glViewport(0, 0, w, h); // 重置当前的视图窗口，前两个参数指定了视见区域的左下角在窗口中的位置
// （一般情况下为（0，0）），后两个参数指定了视图窗口的宽度和高度
GLU.gluPerspective(gl, 45.0f, ((float) w) / h, 1f, 100f); // 设置透视投影的大小；第一个参数是视野的角度，
// 其值为0.0~180.0，第二个参数是宽高比，后面两个分别是场景中所能绘制深度的起点和终点
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
if (height == 0) height = 1;
float aspect = (float) width / height;
gl.glViewport(0, 0, width, height);
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
GLU.gluPerspective(gl, 45, aspect, 0.1f, 100.0f);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
}
public void onSurfaceChanged(GL10 gl, int width, int height) {
// ...
// Define the view frustum
gl.glViewport(0, 0, width, height);
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
float ratio = (float) width / height;
GLU.gluPerspective(gl, 45.0f, ratio, 1, 100f);
}
public void onSurfaceChanged(GL10 gl, int width, int height) {
// Define the Viewport
gl.glViewport(0, 0, width, height);
// Select the projection matrix
gl.glMatrixMode(GL10.GL_PROJECTION);
// Reset the projection matrix
gl.glLoadIdentity();
// Calculate the aspect ratio of the window
GLU.gluPerspective(gl, 60.0f, (float) width / (float) height, 0.1f, 100.0f);
// Select the modelview matrix
gl.glMatrixMode(GL10.GL_MODELVIEW);
}
/** Some initialization of the OpenGL stuff (that I don't understand...) */
protected void init() {
// Much of this code is from GLSurfaceView in the Google API Demos.
// I encourage those interested to look there for documentation.
egl = (EGL10) EGLContext.getEGL();
dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
int[] version = new int[2];
egl.eglInitialize(dpy, version);
int[] configSpec = {
EGL10.EGL_RED_SIZE, 5,
EGL10.EGL_GREEN_SIZE, 6,
EGL10.EGL_BLUE_SIZE, 5,
EGL10.EGL_DEPTH_SIZE, 8,
EGL10.EGL_NONE
};
EGLConfig[] configs = new EGLConfig[1];
int[] num_config = new int[1];
egl.eglChooseConfig(dpy, configSpec, configs, 1, num_config);
EGLConfig config = configs[0];
eglContext = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT, null);
surface = egl.eglCreateWindowSurface(dpy, config, sHolder, null);
egl.eglMakeCurrent(dpy, surface, surface, eglContext);
gl = (GL10) eglContext.getGL();
// Load the buffer and stuff
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.glClearDepthf(1.0f);
gl.glVertexPointer(3, GL10.GL_FLOAT, 0, cubeBuff);
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, texBuff);
gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
gl.glEnable(GL10.GL_TEXTURE_2D);
// Resize... whatever?
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
gl.glViewport(0, 0, width, height);
GLU.gluPerspective(gl, 45.0f, ((float) width) / height, 1f, 100f);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
GLU.gluLookAt(gl, 0, 0, 5.5f, 0, 0, 0, 0, 1, 0);
gl.glNormal3f(0, 0, 1);
}
public void onSurfaceChanged(GL10 gl, int width, int height) {
if (height == 0) {
height = 1;
}
gl.glViewport(0, 0, width, height); // Reset The Current Viewport
gl.glMatrixMode(GL10.GL_PROJECTION); // Select The Projection Matrix
gl.glLoadIdentity(); // Reset The Projection Matrix
GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 100.0f);
gl.glMatrixMode(GL10.GL_MODELVIEW); // Select The Modelview Matrix
gl.glLoadIdentity();
}
/** If the surface changes, reset the view */
public void onSurfaceChanged(GL10 gl, int width, int height) {
if (height == 0) { // Prevent A Divide By Zero By
height = 1; // Making Height Equal One
}
gl.glViewport(0, 0, width, height); // Reset The Current Viewport
gl.glMatrixMode(GL10.GL_PROJECTION); // Select The Projection Matrix
gl.glLoadIdentity(); // Reset The Projection Matrix
// Calculate The Aspect Ratio Of The Window
GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 500.0f);
gl.glMatrixMode(GL10.GL_MODELVIEW); // Select The Modelview Matrix
gl.glLoadIdentity(); // Reset The Modelview Matrix
}
public void onSurfaceChanged(GL10 gl, int width, int height) {
mWidth = width;
mHeight = height;
gl.glViewport(0, 0, width, height); // Reset The Current Viewport
gl.glMatrixMode(GL10.GL_PROJECTION); // Select The Projection Matrix
gl.glLoadIdentity(); // Reset The Projection Matrix
// Calculate The Aspect Ratio Of The Window
GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 100.0f);
gl.glMatrixMode(GL10.GL_MODELVIEW); // Select The Modelview Matrix
gl.glLoadIdentity();
}
// Call back after onSurfaceCreated() or whenever the window's size changes
public void onSurfaceChanged(GL10 gl, int width, int height) {
if (height == 0) height = 1; // To prevent divide by zero
float aspect = (float) width / height;
// Set the viewport (display area) to cover the entire window
gl.glViewport(0, 0, width, height);
// Setup perspective projection, with aspect ratio matches viewport
gl.glMatrixMode(GL10.GL_PROJECTION); // Select projection matrix
gl.glLoadIdentity(); // Reset projection matrix
// Use perspective projection
GLU.gluPerspective(gl, 45, aspect, 0.1f, 100.f);
gl.glMatrixMode(GL10.GL_MODELVIEW); // Select model-view matrix
gl.glLoadIdentity(); // Reset
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
gl.glViewport(0, 0, width, height);
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
float fovy = 50.0f; // Field of view angle, in degrees, in the Y direction.
float aspect = (float) width / (float) height;
float zNear = 0.1f;
float zFar = 100.0f;
// Set up a perspective projection matrix
GLU.gluPerspective(gl, fovy, aspect, zNear, zFar);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
Log.d("changed", "surface changed for " + width + "X" + height);
if (true) return;
// Sets the current view port to the new size.
gl.glViewport(0, 0, width, height); // OpenGL docs.
// Select the projection matrix
// gl.glMatrixMode(GLES20.GL_PROJECTION);// OpenGL docs.
// Reset the projection matrix
gl.glLoadIdentity(); // OpenGL docs.
// Calculate the aspect ratio of the window
GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 100.0f);
// Select the modelview matrix
// gl.glMatrixMode(GLES20.GL_MODELVIEW);// OpenGL docs.
// Reset the modelview matrix
gl.glLoadIdentity(); // OpenGL docs.
}
/**
* Called when the GLSurfaceView changes shape or size.
*
* @param gl The GL10 instance that the game is using.
* @param width The new width of the GLSurfaceView.
* @param height The new height of the GLSurfaceView.
*/
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
// Set GL_MODELVIEW transformation mode
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity(); // reset the matrix to its default state
// When using GL_MODELVIEW, you must set the view point
GLU.gluLookAt(gl, 0, 0, -5, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
gl.glViewport(0, 0, width, height);
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 1000.0f);
gl.glViewport(0, 0, width, height);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
gl.glViewport(0, 0, width, height);
// Set our projection matrix. This doesn't have to be done each time we draw, but usually a new
// projection needs to be set when the viewport is resized.
mScreenAspectRatio = (float) width / height;
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
GLU.gluPerspective(gl, mFovY_deg, mScreenAspectRatio, mZnear, mZfar);
// setPerspective(gl, mFovY_deg, mScreenAspectRatio, mZnear, mZfar);
setCurrentProjection(gl);
setViewport(gl);
}
public void initGL() {
int width = sv.getWidth();
int height = sv.getHeight();
mGL.glViewport(0, 0, width, height);
mGL.glMatrixMode(GL10.GL_PROJECTION);
mGL.glLoadIdentity();
float aspect = (float) width / height;
GLU.gluPerspective(mGL, 45.0f, aspect, 1.0f, 30.0f);
mGL.glClearColor(0.5f, 0.5f, 0.5f, 1);
mGL.glClearDepthf(1.0f);
// light
mGL.glEnable(GL10.GL_LIGHTING);
// the first light
mGL.glEnable(GL10.GL_LIGHT0);
// ambient values
mGL.glLightfv(GL10.GL_LIGHT0, GL10.GL_AMBIENT, new float[] {0.1f, 0.1f, 0.1f, 1f}, 0);
// light that reflects in all directions
mGL.glLightfv(GL10.GL_LIGHT0, GL10.GL_DIFFUSE, new float[] {1f, 1f, 1f, 1f}, 0);
// place it in projection space
mGL.glLightfv(GL10.GL_LIGHT0, GL10.GL_POSITION, new float[] {10f, 0f, 10f, 1}, 0);
// allow our object colors to create the diffuse/ambient material setting
mGL.glEnable(GL10.GL_COLOR_MATERIAL);
// some rendering options
mGL.glShadeModel(GL10.GL_SMOOTH);
mGL.glEnable(GL10.GL_DEPTH_TEST);
// mGL.glDepthFunc(GL10.GL_LEQUAL);
mGL.glEnable(GL10.GL_CULL_FACE);
mGL.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST);
// the only way to draw primitives with OpenGL ES
mGL.glEnableClientState(GL10.GL_VERTEX_ARRAY);
Log.i("GL", "GL initialized");
}
@Override
protected void onDraw(Canvas canvas) {
GL11 gl = (GL11) context.getGL();
int w = getWidth();
int h = getHeight();
context.waitNative(canvas, this);
gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
gl.glViewport(0, 0, w, h);
GLU.gluPerspective(gl, 45.0f, ((float) w) / h, 1f, 100f);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
GLU.gluLookAt(gl, 0, 0, 5, 0, 0, 0, 0, 1, 0);
gl.glTranslatef(0, 0, -10);
gl.glRotatef(30.0f, 1, 0, 0);
// gl.glRotatef(40.0f, 0, 1, 0);
gl.glVertexPointer(3, GL10.GL_FIXED, 0, vertices[frame_ix]);
gl.glNormalPointer(GL10.GL_FIXED, 0, normals);
gl.glTexCoordPointer(2, GL10.GL_FIXED, 0, texCoords);
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_NORMAL_ARRAY);
gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
// gl.glColor4f(1,0,0,1);
gl.glBindTexture(GL10.GL_TEXTURE_2D, tex);
// gl.glBindTexture(GL10.GL_TEXTURE_2D, 0);
gl.glDrawElements(GL10.GL_TRIANGLES, verts, GL10.GL_UNSIGNED_SHORT, indices);
frame_ix = (frame_ix + 1) % m.getFrameCount();
context.waitGL();
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
gl.glViewport(0, 0, width, height);
mViewportWidth = width;
mViewportHeight = height;
float ratio = (float) width / height;
mViewRect.top = 1.0f;
mViewRect.bottom = -1.0f;
mViewRect.left = -ratio;
mViewRect.right = ratio;
updatePageRects();
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
if (USE_PERSPECTIVE_PROJECTION) {
GLU.gluPerspective(gl, 20f, (float) width / height, .1f, 100f);
} else {
GLU.gluOrtho2D(gl, mViewRect.left, mViewRect.right, mViewRect.bottom, mViewRect.top);
}
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
/*
* Set our projection matrix. This doesn't have to be done
* each time we draw, but usually a new projection needs to
* be set when the viewport is resized.
*/
gl.glViewport(0, 0, width, height);
// To prevent divide by zero
float aspect = (float) width / height;
// Set the viewport (display area) to cover the entire window.
gl.glViewport(0, 0, width, height);
// Setup perspective projection, with aspect ratio matches viewport
// Select projection matrix.
gl.glMatrixMode(GL10.GL_PROJECTION);
// Reset projection matrix.
gl.glLoadIdentity();
// Use perspective projection.
GLU.gluPerspective(gl, 45, aspect, 0.1f, 100.f);
// Select model-view matrix.
gl.glMatrixMode(GL10.GL_MODELVIEW);
// Reset.
gl.glLoadIdentity();
}
@Override
public void onDrawFrame(GL10 gl) {
gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
GL11 gl11 = (GL11) gl;
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
// perspective
GLU.gluPerspective(gl11, 45, aspect, 0.01f, 100f);
GLU.gluLookAt(
gl,
(float) (Math.cos(angle) * eyeDistance),
0,
(float) (Math.sin(angle) * eyeDistance),
0,
0,
0.0f,
0.0f,
1.0f,
0.0f);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
// set render status
gl.glEnable(GL10.GL_TEXTURE_2D);
gl.glEnable(GL10.GL_ALPHA_TEST);
gl.glAlphaFunc(GL10.GL_EQUAL, 1.0f);
// gl.glColor4f(1, 1, 1, 1);
// bind
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture);
vbo.bind(gl11);
// left
gl11.glPushMatrix();
{
gl11.glTranslatef(-1, 0, 0);
ibo.draw(gl11);
}
gl11.glPopMatrix();
// right
gl11.glPushMatrix();
{
gl11.glTranslatef(1, 0, 0);
ibo.draw(gl11);
}
gl11.glPopMatrix();
// up
gl11.glPushMatrix();
{
gl11.glTranslatef(0, -1, 0);
ibo.draw(gl11);
}
gl11.glPopMatrix();
// down
gl11.glPushMatrix();
{
gl11.glTranslatef(0, 1, 0);
ibo.draw(gl11);
}
gl11.glPopMatrix();
// unbind
vbo.unbind(gl11);
gl.glDisable(GL10.GL_TEXTURE_2D);
angle += (float) (1f / 180f * Math.PI);
}
