/**
* Binds a single color texture of this FBO for rendering.
*
* <p>You can write to this texture by setting either `gl_FragColor` or `gl_FragData[0]` from your
* shaders. While bound for rendering, the specified texture cannot be used for texturing
* operations.
*/
public void bindOne(GL2 gl, int colorTextureIndex) throws OpenGLException {
/* Sanity check. */
if (colorTextureIndex < 0 || colorTextureIndex >= getColorTextureCount()) {
throw new AssertionError(
"Color texture index out of range: required that 0 <= "
+ colorTextureIndex
+ " < "
+ getColorTextureCount()
+ ".");
}
/* Save state and adjust viewport if this is the first bind. */
if (!mIsBound) {
gl.glPushAttrib(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_VIEWPORT_BIT);
gl.glGetIntegerv(GL2.GL_FRAMEBUFFER_BINDING, mPreviousBinding, 0);
gl.glBindFramebuffer(GL2.GL_FRAMEBUFFER, getHandle());
gl.glViewport(0, 0, mWidth, mHeight);
mIsBound = true;
}
/* Set draw buffer to the requested color attachment. */
gl.glDrawBuffer(GL2.GL_COLOR_ATTACHMENT0 + colorTextureIndex);
/* Make sure it worked. */
OpenGLException.checkOpenGLError(gl);
}
/**
* Binds several specified color textures of this FBO for rendering.
*
* <p>You can write to them by using the `gl_FragData[]` array from your shaders. While bound for
* rendering, the specified textures cannot be used for texturing operations.
*/
public void bindSome(GL2 gl, int indices[]) throws OpenGLException {
/* Save state and adjust viewport if this is the first bind. */
if (!mIsBound) {
gl.glPushAttrib(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_VIEWPORT_BIT);
gl.glGetIntegerv(GL2.GL_FRAMEBUFFER_BINDING, mPreviousBinding, 0);
gl.glBindFramebuffer(GL2.GL_FRAMEBUFFER, getHandle());
gl.glViewport(0, 0, mWidth, mHeight);
mIsBound = true;
}
/* Set draw buffers to all color attachments. */
int bindings[] = new int[indices.length];
for (int i = 0; i < indices.length; ++i) {
if (indices[i] >= getColorTextureCount()) {
throw new OpenGLException(
"FBO bind index "
+ indices[i]
+ " out of range; only "
+ getColorTextureCount()
+ " color textures.");
}
bindings[i] = GL2.GL_COLOR_ATTACHMENT0 + indices[i];
}
gl.glDrawBuffers(indices.length, bindings, 0);
/* Make sure it worked. */
OpenGLException.checkOpenGLError(gl);
}
/**
* Binds a given texture to the first color target This is useful when we want to render to a
* dynamic cube map texture.
*
* <p>You can write to them by using the `gl_FragData[]` array from your shaders. While bound for
* rendering, the specified textures cannot be used for texturing operations.
*/
public void bindGiven(GL2 gl, int textureTarget, int textureHandle, int colorTextureIndex)
throws OpenGLException {
/* Save state and adjust viewport if this is the first bind. */
if (!mIsBound) {
gl.glPushAttrib(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_VIEWPORT_BIT);
gl.glGetIntegerv(GL2.GL_FRAMEBUFFER_BINDING, mPreviousBinding, 0);
gl.glBindFramebuffer(GL2.GL_FRAMEBUFFER, getHandle());
gl.glViewport(0, 0, mWidth, mHeight);
mIsBound = true;
}
/* Attach the given texture */
gl.glFramebufferTexture2D(
GL2.GL_FRAMEBUFFER,
GL2.GL_COLOR_ATTACHMENT0 + colorTextureIndex,
textureTarget,
textureHandle,
0);
/* Set draw buffer to the requested color attachment. */
gl.glDrawBuffer(GL2.GL_COLOR_ATTACHMENT0 + colorTextureIndex);
/* Make sure it worked. */
OpenGLException.checkOpenGLError(gl);
}
private void drawStar(GL2 gl, GLAutoDrawable drawable, Float x, Float y, Float z) {
// Pushing to matrix stack
gl.glPushMatrix();
// STAR
// Moves the figure in the (x, y, z)-axis
gl.glTranslatef(x, y, z);
// BEGIN Star
gl.glBegin(GL_LINE_LOOP);
// Pushing to attribute stack
gl.glPushAttrib(GL_ALL_ATTRIB_BITS);
// Set color to GREEN
gl.glColor3f(0.0f, 1.0f, 0.0f);
// Draw the sides
gl.glVertex3f(0.0f, 1.0f, 0.0f);
gl.glVertex3f(0.2f, 0.2f, 0.0f);
gl.glVertex3f(1.0f, 0.0f, 0.0f);
gl.glVertex3f(0.2f, -0.2f, 0.0f);
gl.glVertex3f(0.0f, -1.0f, 0.0f);
gl.glVertex3f(-0.2f, -0.2f, 0.0f);
gl.glVertex3f(-1.0f, 0.0f, 0.0f);
gl.glVertex3f(-0.2f, 0.2f, 0.0f);
// END Star
gl.glEnd();
// Popping state
gl.glPopAttrib();
gl.glPopMatrix();
}
private void drawSquare(GL2 gl, GLAutoDrawable drawable, Float x, Float y, Float z) {
// Pushing to matrix stack
gl.glPushMatrix();
// SQUARE
// Moves the figure in the (x, y, z)-axis
gl.glTranslatef(x, y, z);
// Makes so that square is filled in
gl.glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
// BEGIN Square
gl.glBegin(GL_QUADS);
// Pushing to attribute stack
gl.glPushAttrib(GL_ALL_ATTRIB_BITS);
// Set color to BLUE
gl.glColor3f(0.0f, 0.0f, 1.0f);
// The Quad
gl.glVertex3f(1.0f, 1.0f, 1.0f);
gl.glVertex3f(-1.0f, 1.0f, 1.0f);
gl.glVertex3f(-1.0f, -1.0f, 1.0f);
gl.glVertex3f(1.0f, -1.0f, 1.0f);
// END Square
gl.glEnd();
// Popping state
gl.glPopAttrib();
gl.glPopMatrix();
}
/** Pushes eval bit */
public void bgnmap2f() {
if (output_triangles) {
// TODO outp triangles surfaceevaluator bgnmap2f
// System.out.println("TODO surfaceevaluator.bgnmap2f output triangles");
} else {
gl.glPushAttrib(GL2.GL_EVAL_BIT);
// System.out.println("TODO surfaceevaluator.bgnmap2f glgetintegerv");
}
}
/**
* Render the arrow as a line and a _head.
*
* @param gl OpenGL Context
*/
public void render(GL2 gl) {
// save Light Attributes and remove lighting to get "full" RGB colors
// gl.glPushAttrib( GL2.GL_LIGHTING_BIT );
gl.glPushAttrib(GL2.GL_ENABLE_BIT);
gl.glDisable(GL2.GL_LIGHTING);
if (_fg_verb) {
System.out.println(
"Arrow pos="
+ _pos.toString()
+ " angZ1="
+ _angZ1
+ " angY2="
+ _angY2
+ " length="
+ _length);
_fg_verb = false;
}
// save transformation matrix, then translate and scale.
gl.glPushMatrix();
gl.glTranslatef(_pos.x, _pos.y, _pos.z);
gl.glRotatef(Matrix.rad2Deg(_angZ1), 0, 0, 1); // rotation around 0z
gl.glRotatef(Matrix.rad2Deg(_angY2), 0, 1, 0); // rotation around 0y
// draw line
gl.glColor4f(_color_fg.x, _color_fg.y, _color_fg.z, _color_fg.w);
gl.glLineWidth(1.0f);
gl.glBegin(GL.GL_LINES);
{
gl.glVertex3f(0, 0, 0);
gl.glVertex3f(_length, 0, 0);
}
gl.glEnd();
// draw head
gl.glPolygonMode(GL.GL_FRONT_AND_BACK, GL2GL3.GL_FILL);
gl.glTranslatef(_length, 0, 0);
gl.glBegin(GL.GL_TRIANGLES);
{
for (float[] face : _head_faces) {
gl.glVertex3f(face[0], face[1], face[2]);
gl.glVertex3f(face[3], face[4], face[5]);
gl.glVertex3f(face[6], face[7], face[8]);
}
}
gl.glEnd();
// restore transformation matrix
gl.glPopMatrix();
// restore attributes
gl.glPopAttrib();
}
// Support Methods
private void drawPyramid(GL2 gl, GLAutoDrawable drawable, Float x, Float y, Float z) {
// Pushing to matrix stack
gl.glPushMatrix();
// PYRAMID
// Moves the figure in the (x, y, z)-axis
gl.glTranslatef(x, y, z);
// Rotates the pyramid, just for "fun"
gl.glRotatef(-55.0f, 0.0f, 1.0f, 0.0f);
// Makes only the outlines
gl.glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
// BEGIN Pyramid
gl.glBegin(GL_TRIANGLES);
// Pushing current color to stack
gl.glPushAttrib(GL_ALL_ATTRIB_BITS);
// Set color to RED
gl.glColor3f(1.0f, 0.0f, 0.0f);
// Front triangle
gl.glVertex3f(0.0f, 1.0f, 0.0f);
gl.glVertex3f(-1.0f, -1.0f, 1.0f);
gl.glVertex3f(1.0f, -1.0f, 1.0f);
// Right triangle
gl.glVertex3f(0.0f, 1.0f, 0.0f);
gl.glVertex3f(1.0f, -1.0f, 1.0f);
gl.glVertex3f(1.0f, -1.0f, -1.0f);
// Left triangle
gl.glVertex3f(0.0f, 1.0f, 0.0f);
gl.glVertex3f(-1.0f, -1.0f, -1.0f);
gl.glVertex3f(-1.0f, -1.0f, 1.0f);
// Back triangle
gl.glVertex3f(0.0f, 1.0f, 0.0f);
gl.glVertex3f(1.0f, -1.0f, -1.0f);
gl.glVertex3f(-1.0f, -1.0f, -1.0f);
// END Pyramid
gl.glEnd();
// Popping state
gl.glPopAttrib();
gl.glPopMatrix();
}
/**
* Binds all color textures of this FBO for rendering.
*
* <p>You can write to them by using the `gl_FragData[]` array from your shaders. While bound for
* rendering, the specified textures cannot be used for texturing operations.
*/
public void bindAll(GL2 gl) throws OpenGLException {
/* Save state and adjust viewport if this is the first bind. */
if (!mIsBound) {
gl.glPushAttrib(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_VIEWPORT_BIT);
gl.glGetIntegerv(GL2.GL_FRAMEBUFFER_BINDING, mPreviousBinding, 0);
gl.glBindFramebuffer(GL2.GL_FRAMEBUFFER, getHandle());
gl.glViewport(0, 0, mWidth, mHeight);
mIsBound = true;
}
/* Set draw buffers to all color attachments. */
int bindings[] = new int[getColorTextureCount()];
for (int i = 0; i < getColorTextureCount(); ++i) {
bindings[i] = GL2.GL_COLOR_ATTACHMENT0 + i;
}
gl.glDrawBuffers(getColorTextureCount(), bindings, 0);
/* Make sure it worked. */
OpenGLException.checkOpenGLError(gl);
}
@Override
public void display(GLAutoDrawable drawable) {
gl = drawable.getGL().getGL2();
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glMatrixMode(GL2.GL_MODELVIEW);
gl.glLoadIdentity();
// desenha ou nao a bounding sphere de cada objeto
if (InputHandler.getInstance().isKeyPressed(KeyEvent.VK_B)) { // tecla B
BoundingVolume.isVisible = !BoundingVolume.isVisible;
}
// habilita ou nao fog
if (InputHandler.getInstance().isKeyPressed(KeyEvent.VK_F)) { // tecla F
fogEnabled = !fogEnabled;
if (fogEnabled) gl.glEnable(GL2.GL_FOG);
else gl.glDisable(GL2.GL_FOG);
}
// atualiza camera
camera.update();
// atualiza objetos
{
Iterator<SceneObject> it = Scene.getInstance().getSceneObjectsIterator();
while (it.hasNext()) {
SceneObject so = it.next();
// animacao da porta
if (so.getName().contains("door")) {
if (Collision.collide(
camera.getSceneObject().getBoundingSphere(), so.getBoundingSphere()))
so.setAnimating(true);
else so.setAnimating(false);
}
so.update();
}
}
glu.gluLookAt(
FPCamera.position.x,
FPCamera.position.y,
FPCamera.position.z,
FPCamera.position.x + FPCamera.look.x,
FPCamera.position.y + FPCamera.look.y,
FPCamera.position.z + FPCamera.look.z,
FPCamera.up.x,
FPCamera.up.y,
FPCamera.up.z);
if (FPCamera.changed) { // se direcao da camera mudar
FPCamera.changed = false;
frustum.generate(drawable); // gera o frustum
Scene.getInstance().clearVisibleObjectsList();
Iterator<SceneObject> it = Scene.getInstance().getSceneObjectsIterator();
while (it.hasNext()) {
SceneObject so = it.next();
if (frustum.sphereInFrustum(so.getBoundingSphere()))
Scene.getInstance().addVisibleObject(so);
}
// System.out.println("Renderable objects: "+ Scene.getInstance().getSize());
// System.out.println(FPCamera.position);
}
// desenha objetos
{
Iterator<SceneObject> it = Scene.getInstance().getVisibleObjectsIterator();
SceneObject so;
while (it.hasNext()) {
so = it.next();
if (so.getName().contains("lake")) {
gl.glPushAttrib(GL2.GL_ENABLE_BIT);
gl.glEnable(GL.GL_BLEND);
gl.glBlendFunc(GL.GL_ONE, GL.GL_ONE);
so.draw(drawable);
gl.glPopAttrib();
continue;
}
so.draw(drawable);
}
}
// int e = gl.glGetError();
// if(e != GL.GL_NO_ERROR) {
// System.err.println("Erro: "+ gl.glGetString(e));
// }
// calculo do fps
++frame;
long time = System.currentTimeMillis();
elapsed = time - timebase;
if (elapsed > 1000) {
long fps = frame * 1000 / (time - timebase);
timebase = time;
frame = 0;
String str = "FPS: " + fps;
mainFrame.setTitle(str);
}
// gl.glFlush();
}
