void CamerasExporter::operator()(Object *ob, Scene *sce)
{
// TODO: shiftx, shifty, YF_dofdist
Camera *cam = (Camera*)ob->data;
std::string cam_id(get_camera_id(ob));
std::string cam_name(id_name(cam));
switch (cam->type) {
case CAM_PANO:
case CAM_PERSP: {
COLLADASW::PerspectiveOptic persp(mSW);
persp.setXFov(RAD2DEGF(focallength_to_fov(cam->lens, cam->sensor_x)), "xfov");
persp.setAspectRatio((float)(sce->r.xsch)/(float)(sce->r.ysch), false, "aspect_ratio");
persp.setZFar(cam->clipend, false, "zfar");
persp.setZNear(cam->clipsta, false, "znear");
COLLADASW::Camera ccam(mSW, &persp, cam_id, cam_name);
addCamera(ccam);
break;
}
case CAM_ORTHO:
default:
{
COLLADASW::OrthographicOptic ortho(mSW);
ortho.setXMag(cam->ortho_scale, "xmag");
ortho.setAspectRatio((float)(sce->r.xsch)/(float)(sce->r.ysch), false, "aspect_ratio");
ortho.setZFar(cam->clipend, false, "zfar");
ortho.setZNear(cam->clipsta, false, "znear");
COLLADASW::Camera ccam(mSW, &ortho, cam_id, cam_name);
addCamera(ccam);
break;
}
}
}
void TraceGLWindow::draw()
{
if(!valid())
{
glClearColor(0.7f, 0.7f, 0.7f, 1.0);
// We're only using 2-D, so turn off depth
glDisable( GL_DEPTH_TEST );
ortho();
m_nWindowWidth=w();
m_nWindowHeight=h();
}
glClear( GL_COLOR_BUFFER_BIT );
unsigned char* buf;
raytracer->getBuffer(buf, m_nDrawWidth, m_nDrawHeight);
if ( buf ) {
// just copy image to GLwindow conceptually
glRasterPos2i( 0, 0 );
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glPixelStorei( GL_UNPACK_ROW_LENGTH, m_nDrawWidth );
glDrawBuffer( GL_BACK );
glDrawPixels( m_nDrawWidth, m_nDrawHeight, GL_RGB, GL_UNSIGNED_BYTE, buf );
}
glFlush();
}
void Camera::ortho2D (Real left, Real right, Real bottom, Real top, Real n, Real f)
{
MvGl2DemoMatrixIdentity(mProjectionMatrix);
ortho (mProjectionMatrix, left, right, bottom, top, n, f);
return;
}
void SharedProgramState::setOrthoProjectionMatrix(const AABB& volume)
{
float minX, minY, minZ, maxX, maxY, maxZ;
volume.bounds(minX, minY, minZ, maxX, maxY, maxZ);
setProjectionMatrix(ortho(minX, maxX, minY, maxY, minZ, maxZ));
}
void OriginalView::draw()
{
if(!valid())
{
glClearColor(0.7f, 0.7f, 0.7f, 1.0);
// We're only using 2-D, so turn off depth
glDisable( GL_DEPTH_TEST );
// Tell openGL to read from the front buffer when capturing
// out paint strokes
glReadBuffer( GL_FRONT );
ortho();
}
glClear( GL_COLOR_BUFFER_BIT );
if ( m_pDoc->m_ucBitmap )
{
// note that both OpenGL pixel storage and the Windows BMP format
// store pixels left-to-right, BOTTOM-to-TOP!! thus all the fiddling
// around with startrow.
m_nWindowWidth=w();
m_nWindowHeight=h();
int drawWidth, drawHeight;
GLvoid* bitstart;
// we are not using a scrollable window, so ignore it
Point scrollpos; // = GetScrollPosition();
scrollpos.x=scrollpos.y=0;
drawWidth = min( m_nWindowWidth, m_pDoc->m_nWidth );
drawHeight = min( m_nWindowHeight, m_pDoc->m_nHeight );
int startrow = m_pDoc->m_nHeight - (scrollpos.y + drawHeight);
if ( startrow < 0 )
startrow = 0;
if(this->bToggleEdge){
bitstart = m_pDoc->m_ucEdgeImage + 3 * ((m_pDoc->m_nWidth * startrow) + scrollpos.x);
} else {
bitstart = m_pDoc->m_ucBitmap + 3 * ((m_pDoc->m_nWidth * startrow) + scrollpos.x);}
// just copy image to GLwindow conceptually
glRasterPos2i( 0, m_nWindowHeight - drawHeight );
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glPixelStorei( GL_UNPACK_ROW_LENGTH, m_pDoc->m_nWidth );
glDrawBuffer( GL_BACK );
glDrawPixels( drawWidth, drawHeight, GL_RGB, GL_UNSIGNED_BYTE, bitstart );}
if(bMarker)
drawMarker();
glFlush();
}
/**
* P(r) calculated from the expansion.
*/
double pr(double *pars, double d_max, int n_c, double r) {
double sum = 0.0;
int i;
for (i=0; i<n_c; i++) {
sum += pars[i] * ortho(d_max, i+1, r);
}
return sum;
}
PGL_USING_NAMESPACE
TOOLS_USING_NAMESPACE
/* ----------------------------------------------------------------------- */
ViewCameraMenu::ViewCameraMenu(ViewCameraGL * camera,QWidget * parent, const char * name):
QMenu(parent)
{
if(name)setObjectName(name);
QPixmap home(ViewerIcon::getPixmap(ViewerIcon::home));
QPixmap read(ViewerIcon::getPixmap(ViewerIcon::fileopen));
QPixmap save(ViewerIcon::getPixmap(ViewerIcon::filefloppy));
QPixmap persp(ViewerIcon::getPixmap(ViewerIcon::perspective));
QPixmap ortho(ViewerIcon::getPixmap(ViewerIcon::orthographic));
QPixmap linked(ViewerIcon::getPixmap(ViewerIcon::linked));
QPixmap eyef(ViewerIcon::getPixmap(ViewerIcon::eyef));
QAction * action = addAction(home,tr("Home"), camera,SLOT(home()), Qt::CTRL+Qt::Key_I);
addAction(tr("&Front View (YZ)"),camera,SLOT(YZView()));
addAction(tr("&Right View (XZ)"),camera,SLOT(XZView()));
addAction(tr("&Top View (XY)"), camera,SLOT(XYView()));
addSeparator();
QMenu * __coordMenu = new QMenu(this);
idGEOMcoord = __coordMenu->addAction(tr("GEOM System"), camera,SLOT(setGEOMCoordSys()));
idGLcoord = __coordMenu->addAction(tr("GL System"), camera,SLOT(setGLCoordSys()));
__coordMenu->addSeparator();
__coordMenu->addAction(tr("&Change"), camera,SLOT(changeCoordSys()));
idGEOMcoord->setCheckable(true);
idGLcoord->setCheckable(true);
setCoordSys(camera->getCoordSys());
__coordMenu->setTitle(tr("Coordinates System"));
addMenu(__coordMenu);
addSeparator();
QMenu * __projectionMenu = new QMenu(this);
idPerspective = __projectionMenu->addAction(persp,tr("&Perspective"), camera,SLOT(setPerspectiveMode()));
idOrtho = __projectionMenu->addAction(ortho,tr("Ort&hographic"), camera,SLOT(setOrthographicMode()));
__projectionMenu->addSeparator();
__projectionMenu->addAction(tr("&Change"), camera,SLOT(changeCameraMode()),Qt::CTRL+Qt::Key_D);
idPerspective->setCheckable(true);
idOrtho->setCheckable(true);
__projectionMenu->setTitle(tr("Projection"));
addMenu(__projectionMenu);
setProjectionMode(camera->getProjectionMode());
QObject::connect(camera,SIGNAL(projectionChanged(bool)),this,SLOT(setProjectionMode(bool)));
QObject::connect(camera,SIGNAL(coordSysChanged(int)),this,SLOT(setCoordSys(int)));
addSeparator();
addAction(save,tr("&Save"), camera,SLOT(save()));
addAction(read,tr("&Read"), camera,SLOT(read()));
addSeparator();
QAction * idLock = addAction(linked,tr("&Auto Fit to Window"), camera,SLOT(lockDim()));
if(camera)idLock->setChecked(camera->isDimLock());
QObject::connect(camera,SIGNAL(lockDimChanged(bool)),idLock,SLOT(setChecked(bool)));
addAction(eyef,tr("&Fit to Window"), camera,SLOT(reDim()));
}
inline Matrix4f getProjection() const {
if (isPerspective) {
return perspective(FOV, true, aspect, zNear, zFar);
} else {
float distance = (zFar - zNear) / 2.0f;
return ortho(-orthoScale * aspect, orthoScale * aspect, -orthoScale,
orthoScale, -distance, distance);
}
}
/**
* Method used to define a orthogonal projetction as the camera projection
* matrix
* @param _left Left screen side coordinate
* @param _right Right screen side coordinate
* @param _up Up screen side coordinate
* @param _down Down screen side coordinate
* @param _zNear Near plane distance
* @param _zFar Far plane distance
*/
void BaseCamera::setOrthogonalProjection(
float _left,
float _right,
float _up,
float _down,
float _zNear,
float _zFar
)
{
this->projectionMatrix = ortho( _left, _right, _up, _down, _zNear, _zFar );
}
void LifeCounter::Draw(mat4 view, mat4 projection) {
projection = ortho(0.0f, 20.0f * (scene->width / (float)scene->height), 0.0f, 20.0f, -20.0f, 20.0f);
for(int i=0; i<lives; i++) {
Content::shader(basic).Begin();
mat4 model = translation(position + vec3(i * icon.size.x, 0, 0)) * mat4_cast(orientation) * scale(size);
model = model;
glUniformMatrix4fv(Content::shader(basic)("inv_view"), 1, GL_FALSE, &(model[0][0]));
icon.Draw(model, projection);
Content::shader(basic).End();
}
}
bool FloatRect::intersects(const Line &line){
float scalar;
glm::vec2 ray(line.x2 - line.x1, line.y2 - line.y1);
float rayLength = length(ray.x, ray.y);
scalar = skalar(this->x - line.x1, this->y - line.y1, ray.x, ray.y);
float rayPoint1 = scalar /rayLength;
scalar = skalar((this->x + this->w) - line.x1, this->y - line.y1, ray.x, ray.y);
float rayPoint2 = scalar /rayLength;
scalar = skalar(this->x - line.x1, (this->y + this->h) - line.y1, ray.x, ray.y);
float rayPoint3 = scalar /rayLength;
scalar = skalar((this->x + this->w) - line.x1, (this->y + this->h) - line.y1, ray.x, ray.y);
float rayPoint4 = scalar /rayLength;
float maxRay = std::fmax(std::fmax(rayPoint1, rayPoint2), std::fmax(rayPoint3, rayPoint4));
float minRay = std::fmin(std::fmin(rayPoint1, rayPoint2), std::fmin(rayPoint3, rayPoint4));
if(maxRay < 0.f || minRay > rayLength) return false;
glm::vec2 ortho(ray.y, -ray.x);
float orthoLength = length(ortho.x, ortho.y);
scalar = skalar(this->x - line.x1, this->y - line.y1, ortho.x, ortho.y);
float orthoPoint1 = scalar / orthoLength;
scalar = skalar((this->x + this->w) - line.x1, this->y - line.y1, ortho.x, ortho.y);
float orthoPoint2 = scalar / orthoLength;
scalar = skalar(this->x - line.x1, (this->y + this->h) - line.y1, ortho.x, ortho.y);
float orthoPoint3 = scalar / orthoLength;
scalar = skalar((this->x + this->w) - line.x1, (this->y + this->h) - line.y1, ortho.x, ortho.y);
float orthoPoint4 = scalar / orthoLength;
float maxOrtho = std::fmax(std::fmax(orthoPoint1, orthoPoint2), std::fmax(orthoPoint3, orthoPoint4));
float minOrtho = std::fmin(std::fmin(orthoPoint1, orthoPoint2), std::fmin(orthoPoint3, orthoPoint4));
if(maxOrtho < 0.f || minOrtho > 0.f) return false;
glm::vec2 rectX(this->w, 0);
float rectXLength = rectX.x;
scalar = skalar(line.x1 - this->x, line.y1 - this->y, rectX.x, rectX.y);
float rectXPoint1 = scalar / rectXLength;
scalar = skalar(line.x2 - this->x, line.y2 - this->y, rectX.x, rectX.y);
float rectXPoint2 = scalar / rectXLength;
float maxRectX = std::fmax(rectXPoint1, rectXPoint2);
float minRectX = std::fmin(rectXPoint1, rectXPoint2);
if(maxRectX < 0.f || minRectX > rectXLength) return false;
glm::vec2 rectY(0, this->h);
float rectYLength = rectY.y;
scalar = skalar(line.x1 - this->x, line.y1 - this->y, rectY.x, rectY.y);
float rectYPoint1 = scalar / rectYLength;
scalar = skalar(line.x2 - this->x, line.y2 - this->y, rectY.x, rectY.y);
float rectYPoint2 = scalar / rectYLength;
float maxRectY = std::fmax(rectYPoint1, rectYPoint2);
float minRectY = std::fmin(rectYPoint1, rectYPoint2);
if(maxRectY < 0.f || minRectY > rectYLength) return false;
return true;
}
GLuint
pick(int x, int y)
{
int hits;
(void) glRenderMode(GL_SELECT);
glInitNames();
glPushName(~0);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPickMatrix(x, winHeight - y, 8.0, 8.0, viewport);
ortho();
glMatrixMode(GL_MODELVIEW);
selectControlPoints();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
hits = glRenderMode(GL_RENDER);
if (hits) {
#ifdef DEBUG
{
unsigned int i;
GLint names;
GLuint *ptr;
printf("hits = %d\n", hits);
ptr = (GLuint *) selectBuffer;
for (i = 0; i < hits; i++) { /* for each hit */
int j;
names = *ptr;
printf("number of names for hit = %d\n", *ptr);
ptr++;
printf(" z1 is %g;", (float) *ptr / 0xffffffff);
ptr++;
printf(" z2 is %g\n", (float) *ptr / 0xffffffff);
ptr++;
printf(" the name is ");
for (j = 0; j < names; j++) { /* For each name. */
printf("%d ", *ptr);
ptr++;
}
printf("\n");
}
}
#endif
return selectBuffer[3];
} else {
return ~0;
}
}
GameView::GameView(RenderTarget &target)
: ground(ResourceManager::Instance().getResource<ShaderProgram>("renderground"), Model::TesselatedSquare(128), target)
, water(ResourceManager::Instance().getResource<ShaderProgram>("renderwater"), Model::TesselatedSquare(128), target)
, gameObjects(ResourceManager::Instance().getResource<ShaderProgram>("renderGameObjs"), Model::Square(), target)
, hud(ResourceManager::Instance().getResource<ShaderProgram>("renderHud"), hudscene, target)
, loading(ResourceManager::Instance().getResource<ShaderProgram>("renderLoading"), loadingscene, target)
, state(0)
, target(target)
{
loadingscene.add(new MenuObject(ResourceManager::Instance().getResource<Model>("loadingbar")));
loading.Register("model_mvp", ortho( -500.0f, 500.0f, 500.0f * target.height / target.width, -500.0f * target.height / target.width, -5.0f, 5.0f));
loading.AddTexture("tex", ResourceManager::Instance().getResource<Texture>("progressbar"));
}
void Renderer::guiBegin() {
glViewport(0,0,contextW,contextH);
//glBindVertexArray(guiVao);
glBindBuffer(GL_ARRAY_BUFFER,guiVerticesId);
//FIXME vao
const size_t textotal{sizeof(GLfloat)*4};
guiprogram->use();
setAttribute(glGetAttribLocation(guiprogram->getId(),"vertex"),2,GL_FLOAT,textotal,0);
setAttribute(glGetAttribLocation(guiprogram->getId(),"texcoord"),2,GL_FLOAT,textotal,textotal/2);
mat4 projection=mat4{ortho(0.0f,1.0f,1.0f,0.0f,0.0f,1.0f)};
guiprogram->projectionMatrix(projection);
}
bool CanvasWidget::updateCanvasSize()
{
if (m_frameBuffer == nullptr || m_frameBuffer->getSize() != m_computedSize)
{
m_frameBuffer.reset(new video::FrameBuffer());
m_frameBuffer->setSize(m_computedSize);
m_backgroundTexture = m_frameBuffer->addTexture("Background");
setBackground(m_backgroundTexture);
m_viewMatrix = ortho(0.f, m_computedSize.x, m_computedSize.y, 0.f);
return true;
}
return false;
}
/**
* @brief OrthographicProjection: Calculate orthographic projection matrix
* @param left: left boundary
* @param right: right boundary
* @param bottom: bottom boundary
* @param top: top boundary
* @param n: n boundary
* @param f: f boundary
* @return 4X4 orthographic projection matrix
*/
mat4 OrthographicProjection(float l, float r, float b, float t, float n, float f)
{
mat4 ortho = mat4::Zero();
ortho(0, 0) = 2.0f / (r - l);
ortho(1, 1) = 2.0f / (t - b);
ortho(2, 2) = -2.0f / (f - n);
ortho(3, 3) = 1.0f;
ortho(1, 3) = -(r + l) / (r - l);
ortho(2, 3) = -(t + b) / (t - b);
ortho(2, 3) = -(f + n) / (f - n);
return ortho;
}
//! renvoie la transformation associee a une camera orthographique (Projection)
Transform Orthographic( const float left, const float right,
const float bottom, const float top,
const float znear, const float zfar )
{
// opengl version
Matrix4x4 ortho(
2.f / (right - left) , 0.f , 0.f , -(right + left) / (right - left),
0.f , 2.f / (top - bottom), 0.f , -(top + bottom) / (top - bottom),
0.f , 0.f , -2.f / (zfar - znear), -(zfar + znear) / (zfar - znear),
0.f, 0.f, 0.f, 1.f
);
return Transform(ortho);
}
void GraphicsManager::setOrthogonal(float clipNear, float clipFar) {
// Force calling it from the main thread
if (!Common::isMainThread()) {
Events::MainThreadFunctor<void> functor(boost::bind(&GraphicsManager::setOrthogonal, this, clipNear, clipFar));
return RequestMan.callInMainThread(functor);
}
ortho(0.0f, _width, 0.0f, _height, clipNear, clipFar);
_projectType = kProjectTypeOrthogonal;
_clipNear = clipNear;
_clipFar = clipFar;
}
void TileRender::setMatrices( const cinder::Camera &camera )
{
float left, top, right, bottom, nearPlane, farPlane;
camera.getFrustum( &left, &top, &right, &bottom, &nearPlane, &farPlane );
if( camera.isPersp() ) {
frustum( left, right, bottom, top, nearPlane, farPlane );
}
else {
ortho( left, right, bottom, top, nearPlane, farPlane );
}
glMatrixMode( GL_MODELVIEW );
glLoadMatrixf( camera.getModelViewMatrix().m );
}
void GFX::set_orthographic(const float screen_ratio, float s, const float aspect_ratio, const float clip_start, const float clip_end, const float screen_orientation)
{
s = ( s * 0.5f ) * aspect_ratio;
ortho(-1.0f,
1.0f,
-screen_ratio,
screen_ratio,
clip_start,
clip_end );
scale( 1.0f / s, 1.0f / s, 1.0f );
if (screen_orientation ) rotate( screen_orientation, 0.0f, 0.0f, 1.0f );
}
//use CropMatrix to adjust the projection matrix which Cascaded Shadow Maps need;
QMatrix4x4 Scene::getCropMatrix(AABB frustumAABB)
{
float scaleX = 2.0f/(frustumAABB.max ().x() - frustumAABB.min ().x());
float scaleY = 2.0f/(frustumAABB.max ().y() - frustumAABB.min ().y());
float offsetX = -0.5f*(frustumAABB.max ().x() + frustumAABB.min ().x()) * scaleX;
float offsetY = -0.5f*(frustumAABB.max ().y() + frustumAABB.min ().y()) * scaleY;
auto CropMatrix = QMatrix4x4(scaleX,0.0f, 0.0f, offsetX,
0.0f, scaleY, 0.0f, offsetY,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f );
auto orthoMatrix = QMatrix4x4();
orthoMatrix.ortho(-1.0, 1.0, -1.0, 1.0, -frustumAABB.max ().z(), -frustumAABB.min ().z() );
orthoMatrix = CropMatrix * orthoMatrix;
return orthoMatrix;
}
void OverlayRenderer::render(RenderContext& context, const float viewWidth, const float viewHeight) {
if (m_vbo == NULL)
m_vbo = new Vbo(GL_ARRAY_BUFFER, 0xFFFF);
if (m_compass == NULL)
m_compass = new CompassRenderer();
glClear(GL_DEPTH_BUFFER_BIT);
const Mat4f projection = orthoMatrix(0.0f, 1000.0f, -viewWidth / 2.0f, viewHeight / 2.0f, viewWidth / 2.0f, -viewHeight / 2.0f);
const Mat4f view = viewMatrix(Vec3f::PosY, Vec3f::PosZ) * translationMatrix(500.0f * Vec3f::PosY);
Renderer::ApplyTransformation ortho(context.transformation(), projection, view);
const Mat4f compassTransformation = translationMatrix(Vec3f(-viewWidth / 2.0f + 50.0f, 0.0f, -viewHeight / 2.0f + 50.0f)) * scalingMatrix(2.0f);
Renderer::ApplyModelMatrix applyCompassTranslate(context.transformation(), compassTransformation);
m_compass->render(*m_vbo, context);
}
int Mat4::lua_Orthographic( lua_State* lua )
{
int result = 0;
int nargs = lua_gettop( lua );
if( nargs >= 6 )
{
float left = static_cast<float>( lua_tonumber( lua, 1 ) );
float right = static_cast<float>( lua_tonumber( lua, 2 ));
float top = static_cast<float>( lua_tonumber( lua, 3 ));
float bottom = static_cast<float>( lua_tonumber( lua, 4 ) );
float nearplane = static_cast<float>( lua_tonumber( lua, 5 ));
float farplane = static_cast<float>( lua_tonumber( lua, 6 ) );
result = lua_Write( lua, ortho( left, right, bottom, top, nearplane, farplane ) );
}
return result;
}
void
reshape(int w, int h)
{
glViewport(0, 0, w, h);
winWidth = w;
winHeight = h;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
ortho();
glGetDoublev(GL_PROJECTION_MATRIX, projMatrix);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glGetDoublev(GL_MODELVIEW_MATRIX, modelMatrix);
viewport[0] = 0;
viewport[1] = 0;
viewport[2] = winWidth;
viewport[3] = winHeight;
}
/**
* P(r) calculated from the expansion, with errors
*/
void pr_err(double *pars, double *err, double d_max, int n_c,
double r, double *pr_value, double *pr_value_err) {
double sum = 0.0;
double sum_err = 0.0;
double func_value;
int i;
for (i=0; i<n_c; i++) {
func_value = ortho(d_max, i+1, r);
sum += pars[i] * func_value;
//sum_err += err[i]*err[i]*func_value*func_value;
sum_err += err[i*n_c+i]*func_value*func_value;
}
*pr_value = sum;
if (sum_err>0) {
*pr_value_err = sqrt(sum_err);
} else {
*pr_value_err = sum;
}
}
void GraphicsManager::setupScene() {
if (!_screen)
throw Common::Exception("No screen initialized");
glClearColor(0, 0, 0, 0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glViewport(0, 0, _width, _height);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glShadeModel(GL_SMOOTH);
glClearColor(0.0f, 0.0f, 0.0f, 0.5f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glAlphaFunc(GL_GREATER, 0.1f);
glEnable(GL_ALPHA_TEST);
setCullFace(_cullFaceEnabled, _cullFaceMode);
switch (_projectType) {
case kProjectTypePerspective:
perspective(_viewAngle, ((float) _width) / ((float) _height), _clipNear, _clipFar);
break;
case kProjectTypeOrthogonal:
ortho(0.0f, _width, 0.0f, _height, _clipNear, _clipFar);
break;
default:
assert(false);
break;
}
}
void SceneView::updateMatrices()
{
makeCurrent();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
auto aspect = float(width()) / float(height());
if (m_ortho) ortho(aspect, m_z);
else perspective(30.0f, aspect, 0.3f, 50.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// World transform:
gluLookAt(m_x, m_y, m_z, m_x, m_y, m_z - 1, 0, 1, 0);
glRotatef(m_beta, 1, 0, 0);
glRotatef(m_alpha, 0, 1, 0);
// Object transform:
m_scene->transform();
}
static void drawTriangle(GLuint verticesVBO, unsigned char r, unsigned char g, unsigned char b, unsigned char a) {
glUseProgram(shaderProgram);
GLuint posLoc = glGetAttribLocation(shaderProgram, "a_position");
GLuint mvpLoc = glGetUniformLocation(shaderProgram, "u_mvpMatrix");
GLuint colorLoc = glGetUniformLocation(shaderProgram, "u_color");
GLfloat mvpMat[16];
ortho(-WINDOWS_SIZE/2, WINDOWS_SIZE/2, -WINDOWS_SIZE/2, WINDOWS_SIZE/2, -100, 100, mvpMat);
glUniformMatrix4fv(mvpLoc, 1, GL_FALSE, mvpMat);
glUniform4f(colorLoc, r/255.f, g/255.f, b/255.f, a/255.f);
glBindBuffer(GL_ARRAY_BUFFER, verticesVBO);
glEnableVertexAttribArray(posLoc);
glVertexAttribPointer(posLoc, 3, GL_FLOAT, GL_FALSE, 3*sizeof(float), BUFFER_OFFSET(0));
glDrawArrays(GL_TRIANGLES, 0, 3);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glUseProgram(0);
}
void View::PreRender( real64_t dt ) {
// set up 2d/3d perspective
if ( is2D ) {
matrix4 o = ortho(
0.0f,
static_cast<real32_t>( width ),
0.0f,
static_cast<real32_t>( height ),
0.0f, // zNear
1.0f // zFar
);
projectionMatrix = glm::make_mat4( o.data );
}
if ( callbackPreRender ) {
callbackPreRender( dt );
}
BufferMemory bufferMem;
perFrameData->MapDiscard( &bufferMem, sizeof( matrix4 ) );
matrix4 *m = static_cast<matrix4 *>( bufferMem.devicePtr );
memcpy( m->data, glm::value_ptr( projectionMatrix ), sizeof(m->data) );
perFrameData->Unmap();
perFrameData->BindRange( 6, bufferMem.offset, bufferMem.size );
// sort surfaces etc?
while ( !renderObjects.empty() ) {
const auto &object = renderObjects.front();
if ( object.handle != Renderable::invalidHandle ) {
//FIXME: this design seems ass-backwards WRT RenderInfo.handle -> Renderable::Draw( RenderInfo )
Renderable::Get( object.handle )->Draw( object );
}
renderObjects.pop();
}
}
void TextBox::Draw(ivec2 pos, vec4 color)
{
glViewport(0, 0, WIDTH, HEIGHT);
if (VAO == NULL)
{
cout << "Failed to open VAO!" << endl;
exit(-1);
}
ivec2 size = ivec2(WIDTH, HEIGHT);
if(color.a < 1.f)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
glUseProgram(shader);
glUniform4f(glGetUniformLocation(shader, "color"), color.r, color.g, color.b, color.a);
mat4 proj = ortho(0.0f, static_cast<GLfloat>(size.x), 0.0f, static_cast<GLfloat>(size.y));
glUniformMatrix4fv(glGetUniformLocation(shader, "projection"), 1, GL_FALSE, value_ptr(proj));
glBindVertexArray(VAO);
GLfloat vertices[6][4] = {
{ pos.x, pos.y + size.y, 0.0, 0.0 },
{ pos.x, pos.y, 0.0, 1.0 },
{ pos.x + size.x, pos.y, 1.0, 1.0 },
{ pos.x, pos.y + size.y, 0.0, 0.0 },
{ pos.x + size.x, pos.y, 1.0, 1.0 },
{ pos.x + size.x, pos.y + size.y, 1.0, 0.0 }
};
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glDrawArrays(GL_TRIANGLES, 0, 6);
glBindVertexArray(NULL);
if(color.a < 1.f)
{
glDisable(GL_BLEND);
}
}
