[2798] | 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
---|
[226] | 2 | /* |
---|
| 3 | * ---------------------------------------------------------------------- |
---|
| 4 | * Nanovis: Visualization of Nanoelectronics Data |
---|
| 5 | * |
---|
| 6 | * ====================================================================== |
---|
| 7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
---|
[427] | 8 | * Michael McLennan <mmclennan@purdue.edu> |
---|
[226] | 9 | * Purdue Rendering and Perceptualization Lab (PURPL) |
---|
| 10 | * |
---|
[3502] | 11 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
---|
[226] | 12 | * |
---|
| 13 | * See the file "license.terms" for information on usage and |
---|
| 14 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
---|
| 15 | * ====================================================================== |
---|
| 16 | */ |
---|
[379] | 17 | |
---|
[391] | 18 | #include <sys/time.h> |
---|
[3605] | 19 | #include <cassert> |
---|
[2831] | 20 | #include <cstdio> |
---|
[4949] | 21 | #include <cmath> // for fmod() |
---|
[5703] | 22 | #include <cfloat> |
---|
[2827] | 23 | |
---|
[3465] | 24 | #include <GL/glew.h> |
---|
| 25 | #include <GL/glut.h> |
---|
| 26 | |
---|
| 27 | #include <graphics/RenderContext.h> |
---|
[3630] | 28 | #include <vrmath/BBox.h> |
---|
[3492] | 29 | #include <vrmath/Vector3f.h> |
---|
[2831] | 30 | |
---|
[3465] | 31 | #include <util/FilePath.h> |
---|
| 32 | #include <util/Fonts.h> |
---|
| 33 | |
---|
[915] | 34 | #include <BMPImageLoaderImpl.h> |
---|
| 35 | #include <ImageLoaderFactory.h> |
---|
[848] | 36 | |
---|
[2877] | 37 | #include "config.h" |
---|
[2831] | 38 | #include "nanovis.h" |
---|
[3605] | 39 | #include "nanovisServer.h" |
---|
[2831] | 40 | #include "define.h" |
---|
| 41 | |
---|
[3597] | 42 | #include "Flow.h" |
---|
[2831] | 43 | #include "Grid.h" |
---|
| 44 | #include "HeightMap.h" |
---|
[3611] | 45 | #include "Camera.h" |
---|
| 46 | #include "LIC.h" |
---|
[3612] | 47 | #include "Shader.h" |
---|
[3605] | 48 | #include "OrientationIndicator.h" |
---|
[2831] | 49 | #include "PlaneRenderer.h" |
---|
[3605] | 50 | #include "PPMWriter.h" |
---|
| 51 | #include "Texture2D.h" |
---|
[2831] | 52 | #include "Trace.h" |
---|
[3605] | 53 | #include "TransferFunction.h" |
---|
[2831] | 54 | #include "VelocityArrowsSlice.h" |
---|
[3605] | 55 | #include "Volume.h" |
---|
[2831] | 56 | #include "VolumeInterpolator.h" |
---|
| 57 | #include "VolumeRenderer.h" |
---|
[1429] | 58 | |
---|
[3605] | 59 | using namespace nv; |
---|
[3463] | 60 | using namespace nv::graphics; |
---|
| 61 | using namespace nv::util; |
---|
[3597] | 62 | using namespace vrmath; |
---|
[3463] | 63 | |
---|
[848] | 64 | // STATIC MEMBER DATA |
---|
[2834] | 65 | |
---|
[3605] | 66 | Tcl_Interp *NanoVis::interp = NULL; |
---|
[1111] | 67 | |
---|
[3630] | 68 | bool NanoVis::redrawPending = false; |
---|
[3567] | 69 | bool NanoVis::debugFlag = false; |
---|
[860] | 70 | |
---|
[3567] | 71 | int NanoVis::winWidth = NPIX; |
---|
| 72 | int NanoVis::winHeight = NPIX; |
---|
| 73 | int NanoVis::renderWindow = 0; |
---|
| 74 | unsigned char *NanoVis::screenBuffer = NULL; |
---|
| 75 | Texture2D *NanoVis::legendTexture = NULL; |
---|
| 76 | Fonts *NanoVis::fonts; |
---|
[3630] | 77 | Camera *NanoVis::_camera = NULL; |
---|
[3567] | 78 | RenderContext *NanoVis::renderContext = NULL; |
---|
[5717] | 79 | GLint NanoVis::max3dTextureSize = 2048; |
---|
[934] | 80 | |
---|
[3567] | 81 | NanoVis::TransferFunctionHashmap NanoVis::tfTable; |
---|
| 82 | NanoVis::VolumeHashmap NanoVis::volumeTable; |
---|
| 83 | NanoVis::FlowHashmap NanoVis::flowTable; |
---|
| 84 | NanoVis::HeightMapHashmap NanoVis::heightMapTable; |
---|
[1028] | 85 | |
---|
[3630] | 86 | BBox NanoVis::sceneBounds; |
---|
[1431] | 87 | |
---|
[3567] | 88 | VolumeRenderer *NanoVis::volRenderer = NULL; |
---|
| 89 | VelocityArrowsSlice *NanoVis::velocityArrowsSlice = NULL; |
---|
[3611] | 90 | LIC *NanoVis::licRenderer = NULL; |
---|
[3567] | 91 | PlaneRenderer *NanoVis::planeRenderer = NULL; |
---|
[3605] | 92 | OrientationIndicator *NanoVis::orientationIndicator = NULL; |
---|
| 93 | Grid *NanoVis::grid = NULL; |
---|
[431] | 94 | |
---|
[3567] | 95 | //frame buffer for final rendering |
---|
| 96 | GLuint NanoVis::_finalFbo = 0; |
---|
| 97 | GLuint NanoVis::_finalColorTex = 0; |
---|
| 98 | GLuint NanoVis::_finalDepthRb = 0; |
---|
| 99 | |
---|
[2951] | 100 | void |
---|
| 101 | NanoVis::removeAllData() |
---|
[1161] | 102 | { |
---|
[3452] | 103 | TRACE("Enter"); |
---|
[3630] | 104 | |
---|
[3362] | 105 | if (grid != NULL) { |
---|
| 106 | TRACE("Deleting grid"); |
---|
| 107 | delete grid; |
---|
| 108 | } |
---|
[3630] | 109 | if (_camera != NULL) { |
---|
| 110 | TRACE("Deleting camera"); |
---|
| 111 | delete _camera; |
---|
[3362] | 112 | } |
---|
| 113 | if (volRenderer != NULL) { |
---|
| 114 | TRACE("Deleting volRenderer"); |
---|
| 115 | delete volRenderer; |
---|
| 116 | } |
---|
| 117 | if (planeRenderer != NULL) { |
---|
| 118 | TRACE("Deleting planeRenderer"); |
---|
| 119 | delete planeRenderer; |
---|
| 120 | } |
---|
| 121 | if (legendTexture != NULL) { |
---|
| 122 | TRACE("Deleting legendTexture"); |
---|
| 123 | delete legendTexture; |
---|
| 124 | } |
---|
| 125 | TRACE("Deleting flows"); |
---|
[3566] | 126 | deleteFlows(interp); |
---|
[3362] | 127 | if (licRenderer != NULL) { |
---|
| 128 | TRACE("Deleting licRenderer"); |
---|
| 129 | delete licRenderer; |
---|
| 130 | } |
---|
| 131 | if (velocityArrowsSlice != NULL) { |
---|
| 132 | TRACE("Deleting velocityArrowsSlice"); |
---|
| 133 | delete velocityArrowsSlice; |
---|
| 134 | } |
---|
| 135 | if (renderContext != NULL) { |
---|
| 136 | TRACE("Deleting renderContext"); |
---|
| 137 | delete renderContext; |
---|
| 138 | } |
---|
| 139 | if (screenBuffer != NULL) { |
---|
| 140 | TRACE("Deleting screenBuffer"); |
---|
| 141 | delete [] screenBuffer; |
---|
[3559] | 142 | screenBuffer = NULL; |
---|
[3362] | 143 | } |
---|
[3470] | 144 | if (fonts != NULL) { |
---|
| 145 | TRACE("Deleting fonts"); |
---|
| 146 | delete fonts; |
---|
| 147 | } |
---|
[3452] | 148 | TRACE("Leave"); |
---|
[1161] | 149 | } |
---|
| 150 | |
---|
[4947] | 151 | void |
---|
[3630] | 152 | NanoVis::eventuallyRedraw() |
---|
[1431] | 153 | { |
---|
[3630] | 154 | if (!redrawPending) { |
---|
[2863] | 155 | glutPostRedisplay(); |
---|
[3630] | 156 | redrawPending = true; |
---|
[1431] | 157 | } |
---|
| 158 | } |
---|
| 159 | |
---|
[1241] | 160 | void |
---|
[3630] | 161 | NanoVis::panCamera(float dx, float dy) |
---|
[1236] | 162 | { |
---|
[3630] | 163 | _camera->pan(dx, dy); |
---|
[1312] | 164 | |
---|
[3630] | 165 | collectBounds(); |
---|
| 166 | _camera->resetClippingRange(sceneBounds.min, sceneBounds.max); |
---|
[1236] | 167 | } |
---|
| 168 | |
---|
[2854] | 169 | void |
---|
[3630] | 170 | NanoVis::zoomCamera(float z) |
---|
[2854] | 171 | { |
---|
[3630] | 172 | _camera->zoom(z); |
---|
[1236] | 173 | |
---|
[3630] | 174 | collectBounds(); |
---|
| 175 | _camera->resetClippingRange(sceneBounds.min, sceneBounds.max); |
---|
| 176 | } |
---|
[3492] | 177 | |
---|
[3630] | 178 | void |
---|
| 179 | NanoVis::orientCamera(double *quat) |
---|
| 180 | { |
---|
| 181 | _camera->orient(quat); |
---|
| 182 | |
---|
[3492] | 183 | collectBounds(); |
---|
[3630] | 184 | _camera->resetClippingRange(sceneBounds.min, sceneBounds.max); |
---|
| 185 | } |
---|
[3492] | 186 | |
---|
[3630] | 187 | void |
---|
| 188 | NanoVis::setCameraPosition(Vector3f pos) |
---|
| 189 | { |
---|
| 190 | _camera->setPosition(pos); |
---|
| 191 | |
---|
| 192 | collectBounds(); |
---|
| 193 | _camera->resetClippingRange(sceneBounds.min, sceneBounds.max); |
---|
[2854] | 194 | } |
---|
| 195 | |
---|
[3492] | 196 | void |
---|
[3630] | 197 | NanoVis::setCameraUpdir(Camera::AxisDirection dir) |
---|
| 198 | { |
---|
| 199 | _camera->setUpdir(dir); |
---|
| 200 | |
---|
| 201 | collectBounds(); |
---|
| 202 | _camera->resetClippingRange(sceneBounds.min, sceneBounds.max); |
---|
| 203 | } |
---|
| 204 | |
---|
| 205 | void |
---|
[3492] | 206 | NanoVis::resetCamera(bool resetOrientation) |
---|
| 207 | { |
---|
| 208 | TRACE("Resetting all=%d", resetOrientation ? 1 : 0); |
---|
| 209 | |
---|
| 210 | collectBounds(); |
---|
[3630] | 211 | _camera->reset(sceneBounds.min, sceneBounds.max, resetOrientation); |
---|
[3492] | 212 | } |
---|
| 213 | |
---|
[2877] | 214 | /** \brief Load a 3D volume |
---|
| 215 | * |
---|
[3597] | 216 | * \param name Volume ID |
---|
| 217 | * \param width Number of samples in X direction |
---|
| 218 | * \param height Number of samples in Y direction |
---|
| 219 | * \param depth Number of samples in Z direction |
---|
| 220 | * \param numComponents the number of scalars for each space point. All component |
---|
[2877] | 221 | * scalars for a point are placed consequtively in data array |
---|
| 222 | * width, height and depth: number of points in each dimension |
---|
[3597] | 223 | * \param data Array of floats |
---|
| 224 | * \param vmin Min value of field |
---|
| 225 | * \param vmax Max value of field |
---|
| 226 | * \param nonZeroMin Minimum non-zero value of field |
---|
[2877] | 227 | * \param data pointer to an array of floats. |
---|
[226] | 228 | */ |
---|
[927] | 229 | Volume * |
---|
[2877] | 230 | NanoVis::loadVolume(const char *name, int width, int height, int depth, |
---|
[3597] | 231 | int numComponents, float *data, double vmin, double vmax, |
---|
| 232 | double nonZeroMin) |
---|
[457] | 233 | { |
---|
[3567] | 234 | VolumeHashmap::iterator itr = volumeTable.find(name); |
---|
| 235 | if (itr != volumeTable.end()) { |
---|
[2863] | 236 | WARN("volume \"%s\" already exists", name); |
---|
[3567] | 237 | removeVolume(itr->second); |
---|
[457] | 238 | } |
---|
[3567] | 239 | |
---|
[3630] | 240 | Volume *volume = new Volume(width, height, depth, |
---|
[3597] | 241 | numComponents, |
---|
| 242 | data, vmin, vmax, nonZeroMin); |
---|
[3362] | 243 | Volume::updatePending = true; |
---|
[3567] | 244 | volume->name(name); |
---|
| 245 | volumeTable[name] = volume; |
---|
| 246 | |
---|
| 247 | return volume; |
---|
[226] | 248 | } |
---|
| 249 | |
---|
[834] | 250 | // Gets a colormap 1D texture by name. |
---|
[2930] | 251 | TransferFunction * |
---|
[3567] | 252 | NanoVis::getTransferFunction(const TransferFunctionId& id) |
---|
[834] | 253 | { |
---|
[3567] | 254 | TransferFunctionHashmap::iterator itr = tfTable.find(id); |
---|
| 255 | if (itr == tfTable.end()) { |
---|
[3568] | 256 | TRACE("No transfer function named \"%s\" found", id.c_str()); |
---|
[887] | 257 | return NULL; |
---|
[3567] | 258 | } else { |
---|
| 259 | return itr->second; |
---|
[445] | 260 | } |
---|
[226] | 261 | } |
---|
| 262 | |
---|
[834] | 263 | // Creates of updates a colormap 1D texture by name. |
---|
[2930] | 264 | TransferFunction * |
---|
[3567] | 265 | NanoVis::defineTransferFunction(const TransferFunctionId& id, |
---|
| 266 | size_t n, float *data) |
---|
[587] | 267 | { |
---|
[3567] | 268 | TransferFunction *tf = getTransferFunction(id); |
---|
| 269 | if (tf == NULL) { |
---|
| 270 | TRACE("Creating new transfer function \"%s\"", id.c_str()); |
---|
[3568] | 271 | tf = new TransferFunction(id.c_str(), n, data); |
---|
[3567] | 272 | tfTable[id] = tf; |
---|
[834] | 273 | } else { |
---|
[3567] | 274 | TRACE("Updating existing transfer function \"%s\"", id.c_str()); |
---|
| 275 | tf->update(n, data); |
---|
[834] | 276 | } |
---|
[3567] | 277 | return tf; |
---|
[834] | 278 | } |
---|
[380] | 279 | |
---|
[1089] | 280 | int |
---|
[2877] | 281 | NanoVis::renderLegend(TransferFunction *tf, double min, double max, |
---|
[5716] | 282 | int width, int height, const char *tag) |
---|
[829] | 283 | { |
---|
[3452] | 284 | TRACE("Enter"); |
---|
[1984] | 285 | |
---|
[2877] | 286 | int old_width = winWidth; |
---|
| 287 | int old_height = winHeight; |
---|
[829] | 288 | |
---|
[2930] | 289 | planeRenderer->setScreenSize(width, height); |
---|
[2877] | 290 | resizeOffscreenBuffer(width, height); |
---|
[829] | 291 | |
---|
| 292 | // generate data for the legend |
---|
| 293 | float data[512]; |
---|
| 294 | for (int i=0; i < 256; i++) { |
---|
| 295 | data[i] = data[i+256] = (float)(i/255.0); |
---|
| 296 | } |
---|
[2834] | 297 | legendTexture = new Texture2D(256, 2, GL_FLOAT, GL_LINEAR, 1, data); |
---|
[2930] | 298 | int index = planeRenderer->addPlane(legendTexture, tf); |
---|
| 299 | planeRenderer->setActivePlane(index); |
---|
[829] | 300 | |
---|
[2930] | 301 | bindOffscreenBuffer(); |
---|
[829] | 302 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //clear screen |
---|
[2877] | 303 | planeRenderer->render(); |
---|
[829] | 304 | |
---|
[3605] | 305 | glPixelStorei(GL_PACK_ALIGNMENT, 1); |
---|
[2877] | 306 | glReadPixels(0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, screenBuffer); |
---|
[1984] | 307 | { |
---|
[1282] | 308 | char prefix[200]; |
---|
[1325] | 309 | |
---|
[5716] | 310 | TRACE("Sending ppm legend image %s min:%g max:%g", tag, min, max); |
---|
| 311 | sprintf(prefix, "nv>legend %s %g %g", tag, min, max); |
---|
[3605] | 312 | #ifdef USE_THREADS |
---|
[3611] | 313 | queuePPM(g_queue, prefix, screenBuffer, width, height); |
---|
[3605] | 314 | #else |
---|
[3611] | 315 | writePPM(g_fdOut, prefix, screenBuffer, width, height); |
---|
[3605] | 316 | #endif |
---|
[1195] | 317 | } |
---|
[2930] | 318 | planeRenderer->removePlane(index); |
---|
[2877] | 319 | resizeOffscreenBuffer(old_width, old_height); |
---|
[829] | 320 | |
---|
[2951] | 321 | delete legendTexture; |
---|
| 322 | legendTexture = NULL; |
---|
[3452] | 323 | TRACE("Leave"); |
---|
[829] | 324 | return TCL_OK; |
---|
| 325 | } |
---|
| 326 | |
---|
[226] | 327 | //initialize frame buffer objects for offscreen rendering |
---|
[3605] | 328 | bool |
---|
[2877] | 329 | NanoVis::initOffscreenBuffer() |
---|
[580] | 330 | { |
---|
[3452] | 331 | TRACE("Enter"); |
---|
[2930] | 332 | assert(_finalFbo == 0); |
---|
[1197] | 333 | // Initialize a fbo for final display. |
---|
[2877] | 334 | glGenFramebuffersEXT(1, &_finalFbo); |
---|
[2831] | 335 | |
---|
[2877] | 336 | glGenTextures(1, &_finalColorTex); |
---|
| 337 | glBindTexture(GL_TEXTURE_2D, _finalColorTex); |
---|
[4167] | 338 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
---|
| 339 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
---|
[2877] | 340 | #if defined(HAVE_FLOAT_TEXTURES) && defined(USE_HALF_FLOAT) |
---|
| 341 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, winWidth, winHeight, 0, |
---|
[887] | 342 | GL_RGB, GL_INT, NULL); |
---|
[2877] | 343 | #elif defined(HAVE_FLOAT_TEXTURES) |
---|
| 344 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB, winWidth, winHeight, 0, |
---|
| 345 | GL_RGB, GL_INT, NULL); |
---|
[383] | 346 | #else |
---|
[2877] | 347 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, winWidth, winHeight, 0, |
---|
[1205] | 348 | GL_RGB, GL_INT, NULL); |
---|
[383] | 349 | #endif |
---|
[2930] | 350 | |
---|
[2877] | 351 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _finalFbo); |
---|
| 352 | glGenRenderbuffersEXT(1, &_finalDepthRb); |
---|
| 353 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
[1198] | 354 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, |
---|
[2877] | 355 | winWidth, winHeight); |
---|
[1198] | 356 | glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, |
---|
[2877] | 357 | GL_TEXTURE_2D, _finalColorTex, 0); |
---|
[1198] | 358 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, |
---|
[2877] | 359 | GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
[1200] | 360 | |
---|
[1199] | 361 | GLenum status; |
---|
[1200] | 362 | if (!CheckFBO(&status)) { |
---|
[2877] | 363 | PrintFBOStatus(status, "finalFbo"); |
---|
[3605] | 364 | return false; |
---|
[1199] | 365 | } |
---|
[1200] | 366 | |
---|
[3452] | 367 | TRACE("Leave"); |
---|
[3605] | 368 | return true; |
---|
[226] | 369 | } |
---|
| 370 | |
---|
[423] | 371 | //resize the offscreen buffer |
---|
[3605] | 372 | bool |
---|
[2877] | 373 | NanoVis::resizeOffscreenBuffer(int w, int h) |
---|
[834] | 374 | { |
---|
[3452] | 375 | TRACE("Enter (%d, %d)", w, h); |
---|
[2877] | 376 | if ((w == winWidth) && (h == winHeight)) { |
---|
[3605] | 377 | return true; |
---|
[1205] | 378 | } |
---|
[2877] | 379 | winWidth = w; |
---|
| 380 | winHeight = h; |
---|
[2831] | 381 | |
---|
[848] | 382 | if (fonts) { |
---|
| 383 | fonts->resize(w, h); |
---|
[776] | 384 | } |
---|
[3452] | 385 | TRACE("screenBuffer size: %d %d", w, h); |
---|
[2831] | 386 | |
---|
[2877] | 387 | if (screenBuffer != NULL) { |
---|
| 388 | delete [] screenBuffer; |
---|
| 389 | screenBuffer = NULL; |
---|
[834] | 390 | } |
---|
[2831] | 391 | |
---|
[3605] | 392 | screenBuffer = new unsigned char[3*winWidth*winHeight]; |
---|
[2877] | 393 | assert(screenBuffer != NULL); |
---|
[3605] | 394 | |
---|
[834] | 395 | //delete the current render buffer resources |
---|
[2877] | 396 | glDeleteTextures(1, &_finalColorTex); |
---|
| 397 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
| 398 | glDeleteRenderbuffersEXT(1, &_finalDepthRb); |
---|
[1205] | 399 | |
---|
[3452] | 400 | TRACE("before deleteframebuffers"); |
---|
[2877] | 401 | glDeleteFramebuffersEXT(1, &_finalFbo); |
---|
[1205] | 402 | |
---|
[3452] | 403 | TRACE("reinitialize FBO"); |
---|
[834] | 404 | //Reinitialize final fbo for final display |
---|
[2877] | 405 | glGenFramebuffersEXT(1, &_finalFbo); |
---|
[1205] | 406 | |
---|
[2877] | 407 | glGenTextures(1, &_finalColorTex); |
---|
| 408 | glBindTexture(GL_TEXTURE_2D, _finalColorTex); |
---|
[4947] | 409 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
---|
| 410 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
---|
[2877] | 411 | #if defined(HAVE_FLOAT_TEXTURES) && defined(USE_HALF_FLOAT) |
---|
| 412 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, winWidth, winHeight, 0, |
---|
[887] | 413 | GL_RGB, GL_INT, NULL); |
---|
[2877] | 414 | #elif defined(HAVE_FLOAT_TEXTURES) |
---|
| 415 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB, winWidth, winHeight, 0, |
---|
| 416 | GL_RGB, GL_INT, NULL); |
---|
[423] | 417 | #else |
---|
[2877] | 418 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, winWidth, winHeight, 0, |
---|
[887] | 419 | GL_RGB, GL_INT, NULL); |
---|
[423] | 420 | #endif |
---|
[2930] | 421 | |
---|
[2877] | 422 | glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _finalFbo); |
---|
| 423 | glGenRenderbuffersEXT(1, &_finalDepthRb); |
---|
| 424 | glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
[1200] | 425 | glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, |
---|
[2877] | 426 | winWidth, winHeight); |
---|
[1205] | 427 | glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, |
---|
[2877] | 428 | GL_TEXTURE_2D, _finalColorTex, 0); |
---|
[1200] | 429 | glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, |
---|
[2877] | 430 | GL_RENDERBUFFER_EXT, _finalDepthRb); |
---|
[2831] | 431 | |
---|
[1199] | 432 | GLenum status; |
---|
[1200] | 433 | if (!CheckFBO(&status)) { |
---|
[2877] | 434 | PrintFBOStatus(status, "finalFbo"); |
---|
[3605] | 435 | return false; |
---|
[1199] | 436 | } |
---|
[1200] | 437 | |
---|
[3452] | 438 | TRACE("change camera"); |
---|
[1205] | 439 | //change the camera setting |
---|
[3630] | 440 | _camera->setViewport(0, 0, winWidth, winHeight); |
---|
[2930] | 441 | planeRenderer->setScreenSize(winWidth, winHeight); |
---|
[1205] | 442 | |
---|
[3452] | 443 | TRACE("Leave (%d, %d)", w, h); |
---|
[3605] | 444 | return true; |
---|
[423] | 445 | } |
---|
| 446 | |
---|
[3605] | 447 | bool NanoVis::init(const char* path) |
---|
[848] | 448 | { |
---|
[2930] | 449 | // print OpenGL driver information |
---|
[3452] | 450 | TRACE("-----------------------------------------------------------"); |
---|
| 451 | TRACE("OpenGL version: %s", glGetString(GL_VERSION)); |
---|
| 452 | TRACE("OpenGL vendor: %s", glGetString(GL_VENDOR)); |
---|
| 453 | TRACE("OpenGL renderer: %s", glGetString(GL_RENDERER)); |
---|
| 454 | TRACE("-----------------------------------------------------------"); |
---|
[2822] | 455 | |
---|
[1111] | 456 | if (path == NULL) { |
---|
[3452] | 457 | ERROR("No path defined for shaders or resources"); |
---|
[3605] | 458 | return false; |
---|
[1111] | 459 | } |
---|
[848] | 460 | GLenum err = glewInit(); |
---|
| 461 | if (GLEW_OK != err) { |
---|
[3452] | 462 | ERROR("Can't init GLEW: %s", glewGetErrorString(err)); |
---|
[3605] | 463 | return false; |
---|
[848] | 464 | } |
---|
[3452] | 465 | TRACE("Using GLEW %s", glewGetString(GLEW_VERSION)); |
---|
[848] | 466 | |
---|
[2930] | 467 | // OpenGL 2.1 includes VBOs, PBOs, MRT, NPOT textures, point parameters, point sprites, |
---|
| 468 | // GLSL 1.2, and occlusion queries. |
---|
| 469 | if (!GLEW_VERSION_2_1) { |
---|
[3452] | 470 | ERROR("OpenGL version 2.1 or greater is required"); |
---|
[3605] | 471 | return false; |
---|
[2877] | 472 | } |
---|
[2930] | 473 | |
---|
[2962] | 474 | // NVIDIA driver may report OpenGL 2.1, but not support PBOs in |
---|
| 475 | // indirect GLX contexts |
---|
| 476 | if (!GLEW_ARB_pixel_buffer_object) { |
---|
[3452] | 477 | ERROR("Pixel buffer objects are not supported by driver, please check that the user running nanovis has permissions to create a direct rendering context (e.g. user has read/write access to /dev/nvidia* device nodes in Linux)."); |
---|
[3605] | 478 | return false; |
---|
[2962] | 479 | } |
---|
| 480 | |
---|
[2930] | 481 | // Additional extensions not in 2.1 core |
---|
| 482 | |
---|
| 483 | // Framebuffer objects were promoted in 3.0 |
---|
| 484 | if (!GLEW_EXT_framebuffer_object) { |
---|
[3452] | 485 | ERROR("EXT_framebuffer_oject extension is required"); |
---|
[3605] | 486 | return false; |
---|
[2877] | 487 | } |
---|
[2930] | 488 | // Rectangle textures were promoted in 3.1 |
---|
| 489 | // FIXME: can use NPOT in place of rectangle textures |
---|
[2884] | 490 | if (!GLEW_ARB_texture_rectangle) { |
---|
[3452] | 491 | ERROR("ARB_texture_rectangle extension is required"); |
---|
[3605] | 492 | return false; |
---|
[2884] | 493 | } |
---|
[2877] | 494 | #ifdef HAVE_FLOAT_TEXTURES |
---|
[2930] | 495 | // Float color buffers and textures were promoted in 3.0 |
---|
[2877] | 496 | if (!GLEW_ARB_texture_float || |
---|
| 497 | !GLEW_ARB_color_buffer_float) { |
---|
[3452] | 498 | ERROR("ARB_texture_float and ARB_color_buffer_float extensions are required"); |
---|
[3605] | 499 | return false; |
---|
[2877] | 500 | } |
---|
| 501 | #endif |
---|
[3875] | 502 | // FIXME: should use GLSL for portability |
---|
| 503 | #ifdef USE_ARB_PROGRAMS |
---|
| 504 | if (!GLEW_ARB_vertex_program || |
---|
| 505 | !GLEW_ARB_fragment_program) { |
---|
| 506 | ERROR("ARB_vertex_program and ARB_fragment_program extensions are required"); |
---|
| 507 | return false; |
---|
| 508 | } |
---|
| 509 | #else |
---|
[2882] | 510 | if (!GLEW_NV_vertex_program3 || |
---|
| 511 | !GLEW_NV_fragment_program2) { |
---|
[3452] | 512 | ERROR("NV_vertex_program3 and NV_fragment_program2 extensions are required"); |
---|
[3605] | 513 | return false; |
---|
[2882] | 514 | } |
---|
[3875] | 515 | #endif |
---|
[2877] | 516 | |
---|
[3463] | 517 | if (!FilePath::getInstance()->setPath(path)) { |
---|
[3452] | 518 | ERROR("can't set file path to %s", path); |
---|
[3605] | 519 | return false; |
---|
[848] | 520 | } |
---|
[1703] | 521 | |
---|
[2856] | 522 | ImageLoaderFactory::getInstance()->addLoaderImpl("bmp", new BMPImageLoaderImpl()); |
---|
| 523 | |
---|
[3605] | 524 | return true; |
---|
[848] | 525 | } |
---|
| 526 | |
---|
[3605] | 527 | bool |
---|
[2930] | 528 | NanoVis::initGL() |
---|
[1089] | 529 | { |
---|
[3452] | 530 | TRACE("in initGL"); |
---|
[1351] | 531 | //buffer to store data read from the screen |
---|
[2877] | 532 | if (screenBuffer) { |
---|
| 533 | delete[] screenBuffer; |
---|
| 534 | screenBuffer = NULL; |
---|
[1351] | 535 | } |
---|
[3605] | 536 | screenBuffer = new unsigned char[3*winWidth*winHeight]; |
---|
[2877] | 537 | assert(screenBuffer != NULL); |
---|
[427] | 538 | |
---|
[1351] | 539 | //create the camera with default setting |
---|
[3630] | 540 | _camera = new Camera(0, 0, winWidth, winHeight); |
---|
[226] | 541 | |
---|
[5717] | 542 | glGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &max3dTextureSize); |
---|
| 543 | TRACE("Max 3D texture dim: %d", max3dTextureSize); |
---|
| 544 | |
---|
[1351] | 545 | glEnable(GL_TEXTURE_2D); |
---|
| 546 | glShadeModel(GL_FLAT); |
---|
| 547 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
---|
[2930] | 548 | glClearColor(0, 0, 0, 1); |
---|
| 549 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
---|
[580] | 550 | |
---|
[1351] | 551 | //initialize lighting |
---|
| 552 | GLfloat mat_specular[] = {1.0, 1.0, 1.0, 1.0}; |
---|
| 553 | GLfloat mat_shininess[] = {30.0}; |
---|
| 554 | GLfloat white_light[] = {1.0, 1.0, 1.0, 1.0}; |
---|
[392] | 555 | |
---|
[1351] | 556 | glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); |
---|
| 557 | glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess); |
---|
| 558 | glLightfv(GL_LIGHT0, GL_DIFFUSE, white_light); |
---|
| 559 | glLightfv(GL_LIGHT0, GL_SPECULAR, white_light); |
---|
[3630] | 560 | glLightfv(GL_LIGHT1, GL_DIFFUSE, white_light); |
---|
[1351] | 561 | glLightfv(GL_LIGHT1, GL_SPECULAR, white_light); |
---|
[392] | 562 | |
---|
[3605] | 563 | //frame buffer object for offscreen rendering |
---|
| 564 | if (!initOffscreenBuffer()) { |
---|
| 565 | return false; |
---|
| 566 | } |
---|
[226] | 567 | |
---|
[3630] | 568 | fonts = new Fonts(); |
---|
| 569 | fonts->addFont("verdana", "verdana.fnt"); |
---|
| 570 | fonts->setFont("verdana"); |
---|
[418] | 571 | |
---|
[3463] | 572 | renderContext = new RenderContext(); |
---|
[2831] | 573 | |
---|
[3630] | 574 | volRenderer = new VolumeRenderer(); |
---|
| 575 | |
---|
[2877] | 576 | planeRenderer = new PlaneRenderer(winWidth, winHeight); |
---|
[431] | 577 | |
---|
[3630] | 578 | velocityArrowsSlice = new VelocityArrowsSlice(); |
---|
| 579 | |
---|
| 580 | licRenderer = new LIC(); |
---|
| 581 | |
---|
[3605] | 582 | orientationIndicator = new OrientationIndicator(); |
---|
| 583 | |
---|
[3630] | 584 | grid = new Grid(); |
---|
| 585 | grid->setFont(fonts); |
---|
| 586 | |
---|
[1351] | 587 | //assert(glGetError()==0); |
---|
[448] | 588 | |
---|
[3452] | 589 | TRACE("leaving initGL"); |
---|
[3605] | 590 | return true; |
---|
[226] | 591 | } |
---|
| 592 | |
---|
[884] | 593 | void NanoVis::update() |
---|
| 594 | { |
---|
[2975] | 595 | VolumeInterpolator *volInterp = volRenderer->getVolumeInterpolator(); |
---|
| 596 | if (volInterp->isStarted()) { |
---|
[887] | 597 | struct timeval clock; |
---|
| 598 | gettimeofday(&clock, NULL); |
---|
[4949] | 599 | double elapsed_time = clock.tv_sec + clock.tv_usec/1000000.0 - |
---|
[2975] | 600 | volInterp->getStartTime(); |
---|
[1089] | 601 | |
---|
[4949] | 602 | TRACE("%g %g", elapsed_time, |
---|
[2975] | 603 | volInterp->getInterval()); |
---|
[4949] | 604 | double fraction; |
---|
| 605 | double f = fmod(elapsed_time, volInterp->getInterval()); |
---|
[900] | 606 | if (f == 0.0) { |
---|
[4949] | 607 | fraction = 0.0; |
---|
[887] | 608 | } else { |
---|
[2975] | 609 | fraction = f / volInterp->getInterval(); |
---|
[887] | 610 | } |
---|
[4949] | 611 | TRACE("fraction : %g", fraction); |
---|
| 612 | volInterp->update((float)fraction); |
---|
[887] | 613 | } |
---|
[884] | 614 | } |
---|
| 615 | |
---|
[3935] | 616 | /** |
---|
| 617 | * \brief Called when new volumes are added to update ranges |
---|
| 618 | */ |
---|
[932] | 619 | void |
---|
[2877] | 620 | NanoVis::setVolumeRanges() |
---|
[932] | 621 | { |
---|
[3630] | 622 | TRACE("Enter"); |
---|
[1089] | 623 | |
---|
[3630] | 624 | double valueMin = DBL_MAX, valueMax = -DBL_MAX; |
---|
[3567] | 625 | VolumeHashmap::iterator itr; |
---|
| 626 | for (itr = volumeTable.begin(); |
---|
| 627 | itr != volumeTable.end(); ++itr) { |
---|
| 628 | Volume *volume = itr->second; |
---|
[3630] | 629 | if (valueMin > volume->wAxis.min()) { |
---|
| 630 | valueMin = volume->wAxis.min(); |
---|
[1089] | 631 | } |
---|
[3630] | 632 | if (valueMax < volume->wAxis.max()) { |
---|
| 633 | valueMax = volume->wAxis.max(); |
---|
[1089] | 634 | } |
---|
[932] | 635 | } |
---|
[3630] | 636 | if ((valueMin < DBL_MAX) && (valueMax > -DBL_MAX)) { |
---|
| 637 | Volume::valueMin = valueMin; |
---|
| 638 | Volume::valueMax = valueMax; |
---|
[932] | 639 | } |
---|
[2877] | 640 | Volume::updatePending = false; |
---|
[3453] | 641 | TRACE("Leave"); |
---|
[932] | 642 | } |
---|
| 643 | |
---|
[3935] | 644 | /** |
---|
| 645 | * \brief Called when new heightmaps are added to update ranges |
---|
| 646 | */ |
---|
[932] | 647 | void |
---|
[2877] | 648 | NanoVis::setHeightmapRanges() |
---|
[932] | 649 | { |
---|
[3630] | 650 | TRACE("Enter"); |
---|
[1089] | 651 | |
---|
[3630] | 652 | double valueMin = DBL_MAX, valueMax = -DBL_MAX; |
---|
[3567] | 653 | HeightMapHashmap::iterator itr; |
---|
| 654 | for (itr = heightMapTable.begin(); |
---|
| 655 | itr != heightMapTable.end(); ++itr) { |
---|
| 656 | HeightMap *heightMap = itr->second; |
---|
[3630] | 657 | if (valueMin > heightMap->wAxis.min()) { |
---|
| 658 | valueMin = heightMap->wAxis.min(); |
---|
[1089] | 659 | } |
---|
[3630] | 660 | if (valueMax < heightMap->wAxis.max()) { |
---|
| 661 | valueMax = heightMap->wAxis.max(); |
---|
[1089] | 662 | } |
---|
[932] | 663 | } |
---|
[3630] | 664 | if ((valueMin < DBL_MAX) && (valueMax > -DBL_MAX)) { |
---|
| 665 | HeightMap::valueMin = valueMin; |
---|
| 666 | HeightMap::valueMax = valueMax; |
---|
[932] | 667 | } |
---|
[3567] | 668 | for (HeightMapHashmap::iterator itr = heightMapTable.begin(); |
---|
| 669 | itr != heightMapTable.end(); ++itr) { |
---|
| 670 | itr->second->mapToGrid(grid); |
---|
[1111] | 671 | } |
---|
[2877] | 672 | HeightMap::updatePending = false; |
---|
[3453] | 673 | TRACE("Leave"); |
---|
[932] | 674 | } |
---|
| 675 | |
---|
[1089] | 676 | void |
---|
[3492] | 677 | NanoVis::collectBounds(bool onlyVisible) |
---|
| 678 | { |
---|
[3630] | 679 | sceneBounds.makeEmpty(); |
---|
[3492] | 680 | |
---|
[3567] | 681 | for (VolumeHashmap::iterator itr = volumeTable.begin(); |
---|
| 682 | itr != volumeTable.end(); ++itr) { |
---|
| 683 | Volume *volume = itr->second; |
---|
[3492] | 684 | |
---|
[3567] | 685 | if (onlyVisible && !volume->visible()) |
---|
[3492] | 686 | continue; |
---|
| 687 | |
---|
[3630] | 688 | BBox bbox; |
---|
| 689 | volume->getBounds(bbox.min, bbox.max); |
---|
| 690 | sceneBounds.extend(bbox); |
---|
[3492] | 691 | } |
---|
| 692 | |
---|
[3567] | 693 | for (HeightMapHashmap::iterator itr = heightMapTable.begin(); |
---|
| 694 | itr != heightMapTable.end(); ++itr) { |
---|
| 695 | HeightMap *heightMap = itr->second; |
---|
[3492] | 696 | |
---|
| 697 | if (onlyVisible && !heightMap->isVisible()) |
---|
| 698 | continue; |
---|
| 699 | |
---|
[3630] | 700 | BBox bbox; |
---|
| 701 | heightMap->getBounds(bbox.min, bbox.max); |
---|
| 702 | sceneBounds.extend(bbox); |
---|
| 703 | } |
---|
[3492] | 704 | |
---|
[3935] | 705 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
| 706 | itr != flowTable.end(); ++itr) { |
---|
| 707 | Flow *flow = itr->second; |
---|
| 708 | |
---|
[3630] | 709 | BBox bbox; |
---|
[3935] | 710 | flow->getBounds(bbox.min, bbox.max, onlyVisible); |
---|
[3630] | 711 | sceneBounds.extend(bbox); |
---|
[3492] | 712 | } |
---|
| 713 | |
---|
[3630] | 714 | if (!sceneBounds.isEmptyX()) { |
---|
[5478] | 715 | grid->xAxis.setRange(sceneBounds.min.x, sceneBounds.max.x); |
---|
[3492] | 716 | } |
---|
[3630] | 717 | if (!sceneBounds.isEmptyY()) { |
---|
[5478] | 718 | grid->yAxis.setRange(sceneBounds.min.y, sceneBounds.max.y); |
---|
[3630] | 719 | } |
---|
| 720 | if (!sceneBounds.isEmptyZ()) { |
---|
[5478] | 721 | grid->zAxis.setRange(sceneBounds.min.z, sceneBounds.max.z); |
---|
[3630] | 722 | } |
---|
[3492] | 723 | |
---|
[3900] | 724 | #if 0 |
---|
[3630] | 725 | if (!onlyVisible || grid->isVisible()) { |
---|
| 726 | BBox bbox; |
---|
| 727 | grid->getBounds(bbox.min, bbox.max); |
---|
| 728 | sceneBounds.extend(bbox); |
---|
| 729 | } |
---|
[3900] | 730 | #endif |
---|
[3492] | 731 | |
---|
[3630] | 732 | if (sceneBounds.isEmpty()) { |
---|
| 733 | sceneBounds.min.set(-0.5, -0.5, -0.5); |
---|
| 734 | sceneBounds.max.set( 0.5, 0.5, 0.5); |
---|
[3492] | 735 | } |
---|
| 736 | |
---|
| 737 | TRACE("Scene bounds: (%g,%g,%g) - (%g,%g,%g)", |
---|
[3630] | 738 | sceneBounds.min.x, sceneBounds.min.y, sceneBounds.min.z, |
---|
| 739 | sceneBounds.max.x, sceneBounds.max.y, sceneBounds.max.z); |
---|
[3492] | 740 | } |
---|
| 741 | |
---|
| 742 | void |
---|
[3478] | 743 | NanoVis::setBgColor(float color[3]) |
---|
| 744 | { |
---|
| 745 | TRACE("Setting bgcolor to %g %g %g", color[0], color[1], color[2]); |
---|
| 746 | glClearColor(color[0], color[1], color[2], 1); |
---|
| 747 | } |
---|
| 748 | |
---|
[3605] | 749 | void |
---|
| 750 | NanoVis::removeVolume(Volume *volume) |
---|
| 751 | { |
---|
| 752 | VolumeHashmap::iterator itr = volumeTable.find(volume->name()); |
---|
| 753 | if (itr != volumeTable.end()) { |
---|
| 754 | volumeTable.erase(itr); |
---|
| 755 | } |
---|
| 756 | delete volume; |
---|
[5722] | 757 | Volume::updatePending = true; |
---|
[3605] | 758 | } |
---|
| 759 | |
---|
[3597] | 760 | Flow * |
---|
| 761 | NanoVis::getFlow(const char *name) |
---|
| 762 | { |
---|
| 763 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
| 764 | if (itr == flowTable.end()) { |
---|
| 765 | TRACE("Can't find flow '%s'", name); |
---|
| 766 | return NULL; |
---|
| 767 | } |
---|
| 768 | return itr->second; |
---|
| 769 | } |
---|
| 770 | |
---|
| 771 | Flow * |
---|
| 772 | NanoVis::createFlow(Tcl_Interp *interp, const char *name) |
---|
| 773 | { |
---|
| 774 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
| 775 | if (itr != flowTable.end()) { |
---|
| 776 | ERROR("Flow '%s' already exists", name); |
---|
| 777 | return NULL; |
---|
| 778 | } |
---|
| 779 | Flow *flow = new Flow(interp, name); |
---|
| 780 | flowTable[name] = flow; |
---|
| 781 | return flow; |
---|
| 782 | } |
---|
| 783 | |
---|
| 784 | /** |
---|
| 785 | * \brief Delete flow object and hash table entry |
---|
| 786 | * |
---|
| 787 | * This is called by the flow command instance delete callback |
---|
| 788 | */ |
---|
[3478] | 789 | void |
---|
[3597] | 790 | NanoVis::deleteFlow(const char *name) |
---|
| 791 | { |
---|
| 792 | FlowHashmap::iterator itr = flowTable.find(name); |
---|
| 793 | if (itr != flowTable.end()) { |
---|
| 794 | delete itr->second; |
---|
| 795 | flowTable.erase(itr); |
---|
[5722] | 796 | Flow::updatePending = true; |
---|
[3597] | 797 | } |
---|
| 798 | } |
---|
| 799 | |
---|
| 800 | /** |
---|
| 801 | * \brief Delete all flow object commands |
---|
| 802 | * |
---|
| 803 | * This will also delete the flow objects and hash table entries |
---|
| 804 | */ |
---|
| 805 | void |
---|
| 806 | NanoVis::deleteFlows(Tcl_Interp *interp) |
---|
| 807 | { |
---|
| 808 | FlowHashmap::iterator itr; |
---|
| 809 | for (itr = flowTable.begin(); |
---|
| 810 | itr != flowTable.end(); ++itr) { |
---|
| 811 | Tcl_DeleteCommandFromToken(interp, itr->second->getCommandToken()); |
---|
| 812 | } |
---|
| 813 | flowTable.clear(); |
---|
| 814 | } |
---|
| 815 | |
---|
[3935] | 816 | /** |
---|
| 817 | * \brief Called when new flows are added to update ranges |
---|
| 818 | */ |
---|
[3597] | 819 | bool |
---|
[3935] | 820 | NanoVis::setFlowRanges() |
---|
[3597] | 821 | { |
---|
| 822 | TRACE("Enter"); |
---|
| 823 | |
---|
[3630] | 824 | Flow::magMin = DBL_MAX; |
---|
| 825 | Flow::magMax = -DBL_MAX; |
---|
[3597] | 826 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
| 827 | itr != flowTable.end(); ++itr) { |
---|
| 828 | Flow *flow = itr->second; |
---|
| 829 | if (!flow->isDataLoaded()) { |
---|
| 830 | continue; |
---|
| 831 | } |
---|
[3935] | 832 | double range[2]; |
---|
| 833 | flow->getVectorRange(range); |
---|
| 834 | if (range[0] < Flow::magMin) { |
---|
| 835 | Flow::magMin = range[0]; |
---|
[3597] | 836 | } |
---|
[3935] | 837 | if (range[1] > Flow::magMax) { |
---|
| 838 | Flow::magMax = range[1]; |
---|
[3597] | 839 | } |
---|
| 840 | } |
---|
| 841 | |
---|
[3630] | 842 | TRACE("magMin=%g magMax=%g", Flow::magMin, Flow::magMax); |
---|
[3597] | 843 | |
---|
| 844 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
| 845 | itr != flowTable.end(); ++itr) { |
---|
| 846 | Flow *flow = itr->second; |
---|
| 847 | if (!flow->isDataLoaded()) { |
---|
| 848 | continue; // Flow exists, but no data has been loaded yet. |
---|
| 849 | } |
---|
| 850 | if (flow->visible()) { |
---|
| 851 | flow->initializeParticles(); |
---|
| 852 | } |
---|
| 853 | } |
---|
[3630] | 854 | |
---|
| 855 | Flow::updatePending = false; |
---|
[3597] | 856 | return true; |
---|
| 857 | } |
---|
| 858 | |
---|
| 859 | void |
---|
| 860 | NanoVis::renderFlows() |
---|
| 861 | { |
---|
| 862 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
| 863 | itr != flowTable.end(); ++itr) { |
---|
| 864 | Flow *flow = itr->second; |
---|
| 865 | if (flow->isDataLoaded() && flow->visible()) { |
---|
| 866 | flow->render(); |
---|
| 867 | } |
---|
| 868 | } |
---|
| 869 | } |
---|
| 870 | |
---|
| 871 | void |
---|
| 872 | NanoVis::resetFlows() |
---|
| 873 | { |
---|
[3630] | 874 | NanoVis::licRenderer->reset(); |
---|
[3597] | 875 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
| 876 | itr != flowTable.end(); ++itr) { |
---|
| 877 | Flow *flow = itr->second; |
---|
[3630] | 878 | if (flow->isDataLoaded()) { |
---|
[3597] | 879 | flow->resetParticles(); |
---|
| 880 | } |
---|
| 881 | } |
---|
| 882 | } |
---|
| 883 | |
---|
| 884 | void |
---|
| 885 | NanoVis::advectFlows() |
---|
| 886 | { |
---|
[3630] | 887 | TRACE("Enter"); |
---|
[3597] | 888 | for (FlowHashmap::iterator itr = flowTable.begin(); |
---|
| 889 | itr != flowTable.end(); ++itr) { |
---|
| 890 | Flow *flow = itr->second; |
---|
[3630] | 891 | if (flow->isDataLoaded()) { |
---|
[3597] | 892 | flow->advect(); |
---|
| 893 | } |
---|
| 894 | } |
---|
| 895 | } |
---|
| 896 | |
---|
| 897 | void |
---|
[3497] | 898 | NanoVis::render() |
---|
[226] | 899 | { |
---|
[3452] | 900 | TRACE("Enter"); |
---|
| 901 | |
---|
[3630] | 902 | if (Flow::updatePending) { |
---|
[3935] | 903 | setFlowRanges(); |
---|
[1431] | 904 | } |
---|
[2877] | 905 | if (HeightMap::updatePending) { |
---|
| 906 | setHeightmapRanges(); |
---|
[932] | 907 | } |
---|
[2877] | 908 | if (Volume::updatePending) { |
---|
| 909 | setVolumeRanges(); |
---|
[932] | 910 | } |
---|
[2930] | 911 | |
---|
[3630] | 912 | collectBounds(); |
---|
[2930] | 913 | |
---|
[3630] | 914 | // Start final rendering |
---|
| 915 | |
---|
[2930] | 916 | // Need to reset fbo since it may have been changed to default (0) |
---|
| 917 | bindOffscreenBuffer(); |
---|
| 918 | |
---|
[4901] | 919 | // Clear screen |
---|
[3597] | 920 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
---|
[226] | 921 | |
---|
[3567] | 922 | glEnable(GL_DEPTH_TEST); |
---|
| 923 | glEnable(GL_COLOR_MATERIAL); |
---|
[1028] | 924 | |
---|
[3630] | 925 | // Emit modelview and projection matrices |
---|
| 926 | _camera->initialize(); |
---|
[1089] | 927 | |
---|
[3630] | 928 | // Now render things in the scene |
---|
[2863] | 929 | |
---|
[3630] | 930 | orientationIndicator->setPosition(sceneBounds.getCenter()); |
---|
| 931 | orientationIndicator->setScale(sceneBounds.getSize()); |
---|
| 932 | orientationIndicator->render(); |
---|
[1089] | 933 | |
---|
[3630] | 934 | grid->render(); |
---|
[3605] | 935 | |
---|
[3630] | 936 | licRenderer->render(); |
---|
| 937 | |
---|
| 938 | velocityArrowsSlice->render(); |
---|
| 939 | |
---|
[3605] | 940 | renderFlows(); |
---|
[3630] | 941 | |
---|
[3567] | 942 | volRenderer->renderAll(); |
---|
[1089] | 943 | |
---|
[3630] | 944 | for (HeightMapHashmap::iterator itr = heightMapTable.begin(); |
---|
[3567] | 945 | itr != heightMapTable.end(); ++itr) { |
---|
[3630] | 946 | itr->second->render(renderContext); |
---|
[4901] | 947 | } |
---|
[2831] | 948 | |
---|
[1984] | 949 | CHECK_FRAMEBUFFER_STATUS(); |
---|
[3452] | 950 | TRACE("Leave"); |
---|
[3630] | 951 | redrawPending = false; |
---|
[226] | 952 | } |
---|