void UIShader::checkShaderFile(){
int currTime = ofGetElapsedTimeMillis();
if( ((currTime - lastTimeCheckMillis) > millisBetweenFileCheck) ){
if( fragFile.exists() ){
std::time_t fragmentShaderFileLastChangeTime = getLastModified( fragFile );
if( fragmentShaderFileLastChangeTime != fragChangedTimes ){
fragChangedTimes = fragmentShaderFileLastChangeTime;
reloadShader(fragFilename,vertFilename,geomFilename);
} else if (bVertex){
if( vertFile.exists() ){
std::time_t vertexShaderFileLastChangeTime = getLastModified( vertFile );
if( vertexShaderFileLastChangeTime != vertChangedTimes ){
vertChangedTimes = vertexShaderFileLastChangeTime;
reloadShader(fragFilename,vertFilename,geomFilename);
}
}
if( geomFile.exists() ){
std::time_t geometryShaderFileLastChangeTime = getLastModified( geomFile );
if( geometryShaderFileLastChangeTime != geomChangedTimes ){
vertChangedTimes = geometryShaderFileLastChangeTime;
reloadShader(fragFilename,vertFilename,geomFilename);
}
}
}
}
lastTimeCheckMillis = currTime;
}
}
// selfSetup is called when the visual system is first instantiated
// This will be called during a "loading" screen, so any big images or
// geometry should be loaded here
void CloudsVisualSystemLaplacianTunnel::selfSetup(){
frameCount = 0;
bUseExternalCamera = false;
bPalindrome = false;
lastFrameTime = 0;
growthFPS = 0;
currentGrowthIndex = 0;
ofDirectory objs(GetCloudsMediaPath() + "assets/LaplacianTunnel/Meshes/");
objs.allowExt("vbo");
objs.listDir();
clear();
min.set(999999);
max.set(-99999);
center.set(14.000,5.900,-13.950);
int numFiles = objs.numFiles();
vbos.resize( numFiles );
for(int i = 0; i < numFiles; i++){
vbos[i].vbo = new ofVboByteColor();
vbos[i].name = objs.getName(i);
vbos[i].indexCount = loadMesh(*vbos[i].vbo, objs.getPath( i ) );
//vbos[i].indexCount = loadMeshPLY(*vbos[i].vbo, objs.getPath( i ) );
}
sort(vbos.begin(), vbos.end(), meshsort);
reloadShader();
tunnelCam.setNearClip(.01);
tunnelCam.setFov(70);
}
ofxRGBDRenderer::ofxRGBDRenderer(){
//come up with better names
xmult = 0;
ymult = 0;
edgeCull = 4000;
simplify = 1;
farClip = 6000;
ZFuzz = 0;
meshRotate = ofVec3f(0,0,0);
calculateNormals = false;
hasDepthImage = false;
hasRGBImage = false;
shaderBound = false;
rendererBound = false;
mirror = false;
calibrationSetup = false;
reloadShader();
setSimplification(1);
hasVerts = false;
forceUndistortOff = false;
addColors = false;
calculateTextureCoordinates = false;
}
void Goal::setup() {
loader_.setScaleNomalization(false);
loader_.loadModel("goal.obj");
goal_ = loader_.getMesh(0);
setPosition(28.2, 51.607, 187.8);
reloadShader();
}
bool RendererServiceSetFocalDistance::reload(const std::string& shaderPath, Logger* logger)
{
return reloadShader(shaderPath,
"FocalDistance",
"focalDistance/focalDistance.vs",
"shared/trivial.fs",
logger);
}
//--------------------------------------------------------------
void testApp::dragEvent(ofDragInfo dragInfo){
vector<string> file = ofSplitString(dragInfo.files[0], ".");
if ( file[1] == "fs" || file[1] == "frg" || file[1] == "frag" ) {
cout << dragInfo.files[0] << " loaded"<< endl;
reloadShader(dragInfo.files[0]);
}
}
void Bloom::initialize(uint a_xRes, uint a_yRes)
{
m_bloomResultTexture.initialize(GLTexture::ESizedFormat::RGB8, a_xRes, a_yRes, GLConfig::getMultisampleType());
m_bloomResultFBO.initialize(GLConfig::getMultisampleType());
m_bloomResultFBO.addFramebufferTexture(m_bloomResultTexture);
m_gaussianBlur.initialize(GaussianBlur::EBlurValueType::VEC3, a_xRes, a_yRes);
reloadShader();
m_initialized = true;
}
bool UIShader::loadFrag(string _fragShader){
bVertex = false;
ofFile fragFile = ofFile(_fragShader);
if (!fragFile.exists() ){
ofBuffer frag;
frag.append(fragmentShader);
ofBufferToFile(_fragShader, frag);
}
return reloadShader( _fragShader );
}
void testApp::checkShaderFile(){
int currTime = ofGetElapsedTimeMillis();
if( ((currTime - lastTimeCheckMillis) > millisBetweenFileCheck) ){
if( shaderFile.exists() ){
std::time_t fragmentShaderFileLastChangeTime = getLastModified( shaderFile );
if( fragmentShaderFileLastChangeTime != shaderChangedTimes ){
shaderChangedTimes = fragmentShaderFileLastChangeTime;
reloadShader();
}
}
lastTimeCheckMillis = currTime;
}
}
void MainWindow::shaderAction(int type)
{
QString errMessage;
bool useUserShader = false;
wz_shader_type_t stype = static_cast<wz_shader_type_t>(type);
if (m_actionEnableUserShaders->isChecked())
{
useUserShader = reloadShader(stype, true, &errMessage);
if (!useUserShader)
{
QMessageBox::warning(this, "External shaders error",
"Unable to load external shaders, so please ensure that they are correct and hit reload!"\
"\nNOTE: Model might temporarily go into stealth mode due to this error...\n\n" +
errMessage);
}
};
if (!useUserShader)
reloadShader(stype, false);
if (static_cast<wz_shader_type_t>(type) != WZ_SHADER_NONE)
{
if (!m_model.setActiveShader(static_cast<wz_shader_type_t>(type)))
{
QMessageBox::warning(this, "Shaders error",
"Unable to activate requested shaders!");
}
}
else
{
m_model.disableShaders();
}
updateModelRender();
setWindowTitle(buildAppTitle());
}
//--------------------------------------------------------------
void testApp::setup(){
ofEnableAlphaBlending();
ofSetVerticalSync(true);
// ofSetDataPathRoot("data/");
ofSetWindowShape(640, 480);
millisBetweenFileCheck = 2 * 1000;
oscReceiver.setup(PORT);
sServer.setName(ofGetTimestampString("%H-%M-%S"));
pingpong.allocate(ofGetScreenWidth(), ofGetScreenHeight());
video = NULL;
reloadShader("shader.fs");
}
void CpuClipmapRenderer::onCreateGpuResources()
{
assert( window_ );
#ifndef OLD_GEOCLIP
_pTerrainShader = SimpleSHLChunk::create();
#endif
reloadShader();
const int levelCount = int(levels_.size());
// if the extension is supported:
useVertexBufferObjects_ = true;
for( int i = 0; i < levelCount; ++i )
{
TerrainLevelRenderData& levelData = levels_[ i ];
GeometryClipmapLevel& level = geoClipmaps_->getLevel( i );
// create vbo for the vertex data:
// todo: create a dynamic vbo for the index data?
const int vertexCount = int(levelData.vertices.size());
// todo: use ReadOnly Vbo (for speed)
if( !levelData.vertexBuffer.create( window_, GL_ARRAY_BUFFER_ARB, sizeof( OpenGLTerrainVertex ) * vertexCount, BufferUsage_Dynamic_ReadWrite ) )
{
useVertexBufferObjects_ = false;
break;
}
levelData.vertexBuffer.uploadData( &levelData.vertices[ 0 ], 0, sizeof( OpenGLTerrainVertex ) * vertexCount );
levelData.vertexBuffer.deactivate();
// create the texture:
levelData.texture = TextureObjChunk::create();
levelData.texture->setImage( level.textureData );
levelData.texture->setMinFilter( GL_NEAREST ); // TODO: use linear min/mag filters (but no mipmapping!
levelData.texture->setMagFilter( GL_NEAREST );
levelData.texture->setWrapS( GL_REPEAT );
levelData.texture->setWrapT( GL_REPEAT );
//levelData.texture->setEnvMode( GL_MODULATE );
}
}
//--------------------------------------------------------------
void ofApp::setup(){
// OF init
ofEnableDepthTest();
oculusRift.baseCamera = &cam;
oculusRift.setup();
oculusRift.fullscreenOnRift();
reloadShader();
// rect textures are fine by default in GL3, we can just use GL_TEXTURE_2D.
// disabling allows simpler normalized texture coordinates, not pixel coords
ofDisableArbTex();
panoLeft.loadImage("panoL.jpg");
panoRight.loadImage("panoR.jpg");
cam.setAutoDistance(false);
}
//--------------------------------------------------------------
void ofApp::keyPressed(int key){
// dismiss safety warning on any key
oculusRift.dismissSafetyWarning();
if( key == 'f' )
{
//gotta toggle full screen for it to be right
ofToggleFullscreen();
}
if(key == 's'){
reloadShader();
}
if(key == 'v'){
oculusRift.setNoVsync( !oculusRift.getNoVsync() );
}
if(key == 'z'){
cout << "FPS: " << ofGetFrameRate() << endl;
}
}
void MainWindow::viewerInitialized()
{
// Only do init once
disconnect(m_ui->centralWidget, SIGNAL(viewerInitialized()), this, SLOT(viewerInitialized()));
m_ui->centralWidget->addToRenderList(&m_model);
m_ui->centralWidget->addToAnimateList(&m_model);
m_meshDock->setModel(&m_model);
m_actionEnableUserShaders = new QAction("Enable external shaders", this);
m_actionEnableUserShaders->setCheckable(true);
m_actionEnableUserShaders->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_E));
connect(m_actionEnableUserShaders, SIGNAL(triggered(bool)), this, SLOT(actionEnableUserShaders(bool)));
m_actionLocateUserShaders = new QAction("Locate external shaders...", this);
m_actionLocateUserShaders->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_L));
connect(m_actionLocateUserShaders, SIGNAL(triggered()), this, SLOT(actionLocateUserShaders()));
m_actionReloadUserShaders = new QAction("Reload external shaders", this);
m_actionReloadUserShaders->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
connect(m_actionReloadUserShaders, SIGNAL(triggered()), this, SLOT(actionReloadUserShader()));
m_shaderGroup = new QActionGroup(this);
for (int i = WZ_SHADER__FIRST; i < WZ_SHADER__LAST; ++i)
{
QString shadername = QWZM::shaderTypeToString(static_cast<wz_shader_type_t>(i));
QAction* shaderAct = new QAction(shadername, this);
m_shaderSignalMapper->setMapping(shaderAct, i);
shaderAct->setActionGroup(m_shaderGroup);
if (i < 9) // FIXME
shaderAct->setShortcut(QKeySequence(tr("Ctrl+%1").arg(i+1)));
shaderAct->setCheckable(true);
reloadShader(static_cast<wz_shader_type_t>(i), false);
connect(shaderAct, SIGNAL(triggered()), m_shaderSignalMapper, SLOT(map()));
}
connect(m_shaderSignalMapper, SIGNAL(mapped(int)), this, SLOT(shaderAction(int)));
QMenu* rendererMenu = new QMenu(this);
rendererMenu->addActions(m_shaderGroup->actions());
// other user shader related stuff
rendererMenu->addSeparator();
rendererMenu->addAction(m_actionEnableUserShaders);
rendererMenu->addAction(m_actionLocateUserShaders);
rendererMenu->addAction(m_actionReloadUserShaders);
m_ui->actionRenderer->setMenu(rendererMenu);
connect(m_ui->actionShowModelCenter, SIGNAL(triggered(bool)),
&m_model, SLOT(setDrawCenterPointFlag(bool)));
connect(m_ui->actionShowNormals, SIGNAL(triggered(bool)),
&m_model, SLOT(setDrawNormalsFlag(bool)));
connect(m_ui->actionShowNormals, SIGNAL(triggered(bool)),
m_ui->actionShow_Tangent_And_Bitangent, SLOT(setEnabled(bool)));
connect(m_ui->actionShow_Tangent_And_Bitangent, SIGNAL(triggered(bool)),
&m_model, SLOT(setDrawTangentAndBitangentFlag(bool)));
connect(m_ui->actionShow_Connectors, SIGNAL(triggered(bool)),
&m_model, SLOT(setDrawConnectors(bool)));
/// Load previous state
m_ui->actionShowModelCenter->setChecked(m_settings->value("3DView/ShowModelCenter", false).toBool());
m_model.setDrawCenterPointFlag(m_ui->actionShowModelCenter->isChecked());
m_ui->actionShowNormals->setChecked(m_settings->value("3DView/ShowNormals", false).toBool());
m_model.setDrawNormalsFlag(m_ui->actionShowNormals->isChecked());
m_ui->actionShow_Connectors->setChecked(m_settings->value("3DView/ShowConnectors", false).toBool());
m_model.setDrawConnectors(m_ui->actionShow_Connectors->isChecked());
m_ui->actionShow_Tangent_And_Bitangent->setChecked(m_settings->value("3DView/ShowTangentAndBitangent", false).toBool());
m_model.setDrawTangentAndBitangentFlag(m_ui->actionShow_Tangent_And_Bitangent->isChecked());
m_ui->actionShow_Tangent_And_Bitangent->setEnabled(m_ui->actionShowNormals->isChecked());
m_ui->actionShowAxes->setChecked(m_settings->value("3DView/ShowAxes", true).toBool());
m_ui->actionShowGrid->setChecked(m_settings->value("3DView/ShowGrid", true).toBool());
m_ui->actionShowLightSource->setChecked(m_settings->value("3DView/ShowLightSource", true).toBool());
m_ui->actionLink_Light_Source_To_Camera->setChecked(m_settings->value("3DView/LinkLightToCamera", true).toBool());
m_actionEnableUserShaders->setChecked(m_settings->value("3DView/EnableUserShaders", false).toBool());
m_ui->actionAnimate->setChecked(m_settings->value("3DView/Animate", true).toBool());
actionEnableUserShaders(m_actionEnableUserShaders->isChecked());
// Default to 3.1
int shaderTag = m_settings->value("3DView/ShaderTag", wz_shader_type_tag[WZ_SHADER_WZ31]).toInt();
int shaderActIdx = -1;
for (int i = WZ_SHADER__FIRST; i < WZ_SHADER__LAST; ++i)
{
if (shaderTag == wz_shader_type_tag[i])
shaderActIdx = i;
}
// Select any previous selection
if (shaderActIdx >= 0)
{
if (m_shaderGroup->actions().at(shaderActIdx)->isEnabled())
m_shaderGroup->actions().at(shaderActIdx)->activate(QAction::Trigger);
else
shaderActIdx = -1;
}
// Otherwise use old approach
if (shaderActIdx < 0)
{
for (int i = m_shaderGroup->actions().size() - 1; i >= 0; --i)
{
if (m_shaderGroup->actions().at(i)->isEnabled())
{
m_shaderGroup->actions().at(i)->activate(QAction::Trigger);
break;
}
}
}
}
void App::update(float delta_time) {
if (anim_play) frame_count++;
if (!hide_gui) gui();
// autoreload frag shader (every 60 frames)
if (shader_filepath && shader_file_autoreload && (frame_count % 60) == 0) {
struct stat attr;
if (!stat(shader_filepath, &attr)) { // file exists
if (attr.st_mtime > shader_file_mtime) { // file has been modified
shader_file_mtime = (int)attr.st_mtime;
reloadShader();
}
}
}
// update camera (-z: forward, y: up)
camera_euler_angles += 2.0f*delta_time
* v3(-movement_command.rotate.x, -movement_command.rotate.y, 0.0f);
camera_euler_angles.x = fminf(fmaxf(-0.5f*(float)M_PI, camera_euler_angles.x), 0.5f*(float)M_PI); // clamp
mat3 rot_x = rotationMatrix(v3(1.0f, 0.0f, 0.0f), camera_euler_angles.x);
mat3 rot_y = rotationMatrix(v3(0.0f, 1.0f, 0.0f), camera_euler_angles.y);
mat3 rot_z = rotationMatrix(v3(0.0f, 0.0f, 1.0f), camera_euler_angles.z);
mat3 rot = rot_y * rot_x * rot_z;
camera_location += rot * (8.0f*delta_time*movement_command.move);
mat4 view_to_world = translationMatrix(camera_location) * m4(rot);
mat4 world_to_view = m4(transpose(rot)) * translationMatrix(-camera_location);
// bind textures
for (int tsi = 0; tsi < (int)ARRAY_COUNT(texture_slots); tsi++) {
glActiveTexture(GL_TEXTURE0+tsi);
glBindTexture(texture_slots[tsi].target, texture_slots[tsi].texture);
}
// draw fullscreen triangle(s)
glClearColor(0.2f, 0.21f, 0.22f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
{ BindShader bind_shader(shader);
if (!compile_error_log) {
for (int i = 0; i < uniform_count; i++) {
uniforms[i].apply();
}
}
// apply builtin uniforms
u_time = (float)frame_count / 60.0f;
glUniform1f(shader.getUniformLocation(u_time_name), u_time);
vec2 u_resolution = v2(video.pixel_scale*video.width, video.pixel_scale*video.height);
glUniform2fv(shader.getUniformLocation(u_resolution_name), 1, u_resolution.e);
glUniformMatrix4fv(shader.getUniformLocation(u_view_to_world_name), 1, GL_FALSE, view_to_world.e);
glUniformMatrix4fv(shader.getUniformLocation(u_world_to_view_name), 1, GL_FALSE, world_to_view.e);
if (single_triangle_mode) {
{ BindArrayBuffer bind_array_buffer(single_triangle_vbo);
glEnableVertexAttribArray(VAT_POSITION);
glVertexAttribPointer(VAT_POSITION, 2, GL_FLOAT, GL_FALSE, 0, (GLvoid*)0);
glDrawArrays(GL_TRIANGLES, 0, 3);
glDisableVertexAttribArray(VAT_POSITION);
}
} else {
{ BindArrayBuffer bind_array_buffer(two_triangles_vbo);
glEnableVertexAttribArray(VAT_POSITION);
glVertexAttribPointer(VAT_POSITION, 2, GL_FLOAT, GL_FALSE, 0, (GLvoid*)0);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisableVertexAttribArray(VAT_POSITION);
}
}
}
}
//events are called when the system is active
//Feel free to make things interactive for you, and for the user!
void CloudsVisualSystemLaplacianTunnel::selfKeyPressed(ofKeyEventArgs & args){
if(args.key == 'R'){
reloadShader();
}
}
bool UIShader::load(string _fragShader, string _vertShader, string _geomShader){
return reloadShader(_fragShader,_vertShader, _geomShader);
}
void CpuClipmapRenderer::onRender( const ClipmapRenderParameters& renderParameters )
{
// activate the gpu program:
//glDisable( GL_LIGHTING );
#ifdef OLD_GEOCLIP
terrainShader_.activate();
if( programTextChanged_ )
{
reloadShader();
programTextChanged_ = false;
}
#else
_pTerrainShader->activate(renderParameters.drawEnv);
#endif
// bool useDependentTextureLookup = false;
if( renderParameters.globalTextureObj != NULL )
{
renderParameters.globalTextureObj->activate( renderParameters.drawEnv );
renderParameters.globalTextureEnv->activate( renderParameters.drawEnv );
}
else if( renderParameters.heightColorTexture != NULL )
{
// todo: use a different pixel shader here
// useDependentTextureLookup = true;
renderParameters.heightColorTexture->activate( renderParameters.drawEnv );
}
// render all levels from finest to coarsest:
const int levelCount = int(levels_.size());
// for( int i = 0; i < levelCount; ++i )
for( int i = 0; i < levelCount; ++i )
{
int levelIdx = levelCount - i - 1;
//std::cerr << "Rendering Level " << levelIdx << std::endl;
GeometryClipmapLevel& level = geoClipmaps_->getLevel( levelIdx );
GeometryClipmapLevel* coarserLevel = 0;
GeometryClipmapLevel* finerLevel = 0;
if( levelIdx > 0 )
{
coarserLevel = &geoClipmaps_->getLevel( levelIdx - 1 );
}
if( levelIdx + 1 < levelCount )
{
finerLevel = &geoClipmaps_->getLevel( levelIdx + 1 );
}
const Color3f& debugColor = getDebugColor( levelIdx );
#ifdef OLD_GEOCLIP
terrainShader_.setUniform(
"baseColor0", colorToVector( debugColor ) );
terrainShader_.setUniform(
"sampleDistance",
renderParameters.worldTransform.sampleDistance );
terrainShader_.setUniform(
"worldOffset",
renderParameters.worldTransform.offset );
terrainShader_.setUniform(
"heightScale",
renderParameters.worldTransform.heightScale );
terrainShader_.setUniform(
"heightOffset",
renderParameters.worldTransform.heightOffset );
#else
#ifdef NOTUSED
_pTerrainShader->setUniformParameter(
"baseColor0", colorToVector( debugColor ) );
#endif
_pTerrainShader->addUniformVariable(
"sampleDistance",
renderParameters.worldTransform.sampleDistance );
_pTerrainShader->addUniformVariable(
"worldOffset",
renderParameters.worldTransform.offset );
_pTerrainShader->addUniformVariable(
"heightScale",
renderParameters.worldTransform.heightScale );
_pTerrainShader->addUniformVariable(
"heightOffset",
renderParameters.worldTransform.heightOffset );
#endif
if( renderParameters.showTransitionRegions )
{
// todo: add a sensible debug representation..
drawSampleRectangle( level.getCoveredSampleRect(),
debugColor,
renderParameters.worldTransform );
//drawSamples( level, Color3f( 0, 1, 0 ) );
//drawVertices( level, debugColor );
drawBlendLines( level,
debugColor,
renderParameters.worldTransform );
}
if( !level.isActive )
{
continue;
}
// only use the finer level, if it is active:
if( finerLevel && !finerLevel->isActive )
{
finerLevel = 0;
}
// buildIndices dynamically builds the indices for this level and
// does frustum culling
// the method returns false if nothing is visible
// todo: dont rebuild the indices every time.. just rebuild them if
// something changed (inside the update() call)
if( buildIndices( level, finerLevel ) )
{
// finally: draw the block:
renderBlock( level, coarserLevel, renderParameters, debugColor );
}
stats_.drawnLevelCount++;
}
if( renderParameters.globalTextureObj != NULL )
{
renderParameters.globalTextureObj->deactivate(
renderParameters.drawEnv );
renderParameters.globalTextureEnv->deactivate(
renderParameters.drawEnv );
}
else if(renderParameters.heightColorTexture != NULL)
{
renderParameters.heightColorTexture->deactivate(
renderParameters.drawEnv );
}
#ifdef OLD_GEOCLIP
terrainShader_.deactivate();
#else
_pTerrainShader->deactivate(renderParameters.drawEnv);
#endif
}
void Raycaster::draw(
GLint volumeTextureHandle,
GLint importanceVolumeTextureHandle,
glm::vec3 volumeScale,
glm::vec3 volumeResolution,
VolumeProperties volumeProperties,
GLfloat aspectRatio,
GLfloat fieldOfView,
glm::vec3 cameraPosition,
glm::mat4 viewMatrix,
glm::vec3 sunDirection,
glm::vec3 sunColor,
GLfloat sunBrightness,
glm::vec3 ambientColor,
GLint colorAlphaFunctionHandle,
GLint ambientSpecularFunctionHandle,
GLint advancedFunctionHandle,
GLint colorAlphaPreintegrationHandle,
GLint ambientSpecularPreintegrationHandle,
GLint advancedPreintegrationHandle,
GLint tfResolution,
GLint reflectionHandle,
glm::vec3 volumeExtent,
glm::vec3 volumeExtentOffset)
{
if(shaderShouldBeReloaded)
{
reloadShader();
shaderShouldBeReloaded = GL_FALSE;
}
// basicInput.x has many jobs
// Standard: stepSize
// Adaptive Sampling: minAdaptiveStepSize
// Voxel Spaced Samp.: stepSizeMultiplier
// Ad. Voxel Spaced Samp.: minAdaptiveStepSizeMultiplier
// Set basic input (need not to be set each frame..)
glm::vec4 basicInput;
GLfloat stepSize;
GLfloat minAdaptiveStepSize;
GLfloat maxAdaptiveStepSize;
// When voxel spaced sampling is used, step size depends on direction and volume
if(!useVoxelSpacedSampling)
{
stepSize = properties.stepSize;
minAdaptiveStepSize = properties.minAdaptiveStepSize;
maxAdaptiveStepSize = properties.maxAdaptiveStepSize;
}
else
{
stepSize = 1;
minAdaptiveStepSize = 1;
maxAdaptiveStepSize = 1;
}
if(useAdaptiveSampling)
{
// Max adaptive step size is filled into advanced input's w value
basicInput.x = minAdaptiveStepSize * properties.minAdaptiveStepSizeMultiplier;
}
else
{
basicInput.x = stepSize * properties.stepSizeMultiplier;
}
basicInput.y = static_cast<GLfloat>(properties.outerIterations);
basicInput.z = static_cast<GLfloat>(properties.innerIterations);
basicInput.w = properties.alphaThreshold;
// Set advanced input
glm::vec4 advancedInput;
advancedInput.x = properties.jitteringRangeMultiplier;
advancedInput.y = properties.normalRangeMultiplier;
advancedInput.z = properties.fresnelPower;
advancedInput.w = maxAdaptiveStepSize * properties.maxAdaptiveStepSizeMultiplier;
// Set volume value information
glm::vec2 volumeValueInformation;
volumeValueInformation.x = volumeProperties.valueOffset;
volumeValueInformation.y = volumeProperties.valueScale;
glm::vec3 mirrorUVW(0,0,0);
if(volumeProperties.mirrorX)
{
mirrorUVW.x = 1;
}
if(volumeProperties.mirrorY)
{
mirrorUVW.y = 1;
}
if(volumeProperties.mirrorZ)
{
mirrorUVW.z = 1;
}
// Compute model matrix
glm::mat4 modelScaleMatrix = glm::mat4(1.0f);
glm::mat4 modelRotationMatrix = glm::mat4(1.0f);
modelScaleMatrix = glm::scale(modelScaleMatrix, volumeProperties.voxelScaleMultiplier * volumeScale);
modelRotationMatrix = glm::rotate(modelRotationMatrix, glm::radians(volumeProperties.eulerZXZRotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
modelRotationMatrix = glm::rotate(modelRotationMatrix, glm::radians(volumeProperties.eulerZXZRotation.y), glm::vec3(1.0f, 0.0f, 0.0f));
modelRotationMatrix = glm::rotate(modelRotationMatrix, glm::radians(volumeProperties.eulerZXZRotation.x), glm::vec3(0.0f, 0.0f, 1.0f));
// Compute projection matrix
glm::mat4 projectionMatrix = glm::perspective(glm::radians(fieldOfView), aspectRatio, 0.1f, 100.f);
// Use program because setUniform needs ist
shader.use();
// Set matrices and vectors
shader.setUniformValue(uniformModelScaleHandle, modelScaleMatrix);
shader.setUniformValue(uniformModelRotationHandle, modelRotationMatrix);
shader.setUniformValue(uniformViewHandle, viewMatrix);
shader.setUniformValue(uniformProjectionHandle, projectionMatrix);
shader.setUniformValue(uniformCameraPosHandle, cameraPosition);
shader.setUniformValue(uniformBasicInputHandle, basicInput);
shader.setUniformValue(uniformAdvancedInputHandle, advancedInput);
shader.setUniformValue(uniformVolumeValueInformationHandle, volumeValueInformation);
shader.setUniformValue(uniformMirrorUVWHandle, mirrorUVW);
// Volume clipping
glm::mat4 volumeExtentMatrix = glm::mat4(1.0f);
volumeExtentMatrix = glm::scale(volumeExtentMatrix, volumeExtent);
shader.setUniformValue(uniformVolumeExtentHandle, volumeExtentMatrix);
shader.setUniformValue(uniformVolumeExtentOffsetHandle, volumeExtentOffset);
// Set up depending on defines
shader.setUniformTexture(uniformVolumeHandle, volumeTextureHandle, GL_TEXTURE_3D);
if(usePreintegration)
{
shader.setUniformTexture(uniformColorAlphaPreintegrationHandle, colorAlphaPreintegrationHandle, GL_TEXTURE_2D);
}
else
{
shader.setUniformTexture(uniformColorAlphaHandle, colorAlphaFunctionHandle, GL_TEXTURE_1D);
}
if(useGradientAlphaMultiplier || useFresnelAlphaMultiplier || useReflectionColorMultiplier || useEmissionColorMultiplier)
{
if(usePreintegration)
{
shader.setUniformTexture(uniformAdvancedPreintegrationHandle, advancedPreintegrationHandle, GL_TEXTURE_2D);
}
else
{
shader.setUniformTexture(uniformAdvancedHandle, advancedFunctionHandle, GL_TEXTURE_1D);
}
}
if(useReflectionColorMultiplier)
{
shader.setUniformTexture(uniformReflectionHandle, reflectionHandle, GL_TEXTURE_2D);
}
if(useLocalIllumination)
{
if(usePreintegration)
{
shader.setUniformTexture(uniformAmbientSpecularPreintegrationHandle, ambientSpecularPreintegrationHandle, GL_TEXTURE_2D);
}
else
{
shader.setUniformTexture(uniformAmbientSpecularHandle, ambientSpecularFunctionHandle, GL_TEXTURE_1D);
}
shader.setUniformValue(uniformSunDirectionHandle, sunDirection);
shader.setUniformValue(uniformSunColorHandle, glm::vec4(sunColor, sunBrightness));
shader.setUniformValue(uniformAmbientColorHandle, ambientColor);
}
if(useJittering)
{
shader.setUniformTexture(uniformNoiseHandle, noiseHandle, GL_TEXTURE_2D);
}
if(useAdaptiveSampling)
{
shader.setUniformTexture(uniformImportanceVolumeHandle, importanceVolumeTextureHandle, GL_TEXTURE_3D);
}
if(useVoxelSpacedSampling)
{
shader.setUniformValue(uniformVolumeResolutionHandle, volumeResolution);
}
// Draw it
shader.draw(GL_TRIANGLES);
}