//--------------------------------------------------------------
void ftFluidSimulation::reset() {
densitySwapBuffer.clear();
velocitySwapBuffer.clear();
temperatureSwapBuffer.clear();
createEdgeImage(obstacleBuffer);
combinedObstacleNeedsToBeCleaned = true;
}
//--------------------------------------------------------------
void ftFluidSimulation::setup(int _simulationWidth, int _simulationHeight, int _densityWidth, int _densityHeight, bool doFasterInternalFormat) {
simulationWidth = _simulationWidth;
simulationHeight = _simulationHeight;
densityWidth = (!_densityWidth)? simulationWidth : _densityWidth;
densityHeight = (!_densityHeight)? simulationHeight: _densityHeight;
int internalFormatDensity, internalFormatVelocity, interformatPressure, internalFormatObstacle;
if (doFasterInternalFormat) { // This gives errors with ofGLUtils, but it runs around 15% faster.
internalFormatDensity = GL_RGBA32F;
internalFormatVelocity = GL_RG32F;
interformatPressure = GL_R32F;
internalFormatObstacle = GL_RED;
}
else { // This gives no errors
internalFormatDensity = GL_RGBA32F;
internalFormatVelocity = GL_RGBA32F;
interformatPressure = GL_RGBA32F;
internalFormatObstacle = GL_RGB;
}
densitySwapBuffer.allocate(densityWidth,densityHeight,internalFormatDensity);
densitySwapBuffer.clear();
velocitySwapBuffer.allocate(simulationWidth,simulationHeight,internalFormatVelocity);
velocitySwapBuffer.clear();
temperatureSwapBuffer.allocate(simulationWidth,simulationHeight,interformatPressure);
// temperatureSwapBuffer.clear(ambientTemperature.get());
temperatureSwapBuffer.clear();
pressureSwapBuffer.allocate(simulationWidth,simulationHeight,interformatPressure);
obstacleBuffer.allocate(simulationWidth, simulationHeight, internalFormatObstacle);
obstacleBuffer.clear();
createEdgeImage(obstacleBuffer);
divergenceBuffer.allocate(simulationWidth, simulationHeight, internalFormatVelocity);
smokeBuoyancyBuffer.allocate(simulationWidth, simulationHeight, internalFormatVelocity);
smokeBuoyancyBuffer.clear();
vorticityFirstPassBuffer.allocate(simulationWidth, simulationHeight, internalFormatVelocity);
vorticitySecondPassBuffer.allocate(simulationWidth, simulationHeight, internalFormatVelocity);
addPressureBuffer.allocate(simulationWidth, simulationHeight, interformatPressure);
addPressureBufferDidChange = false;
addTempObstacleBuffer.allocate(simulationWidth, simulationHeight, internalFormatObstacle);
addTempObstacleBuffer.clear();
addTempObstacleBufferDidChange = false;
combinedObstacleBuffer.allocate(simulationWidth, simulationHeight, internalFormatObstacle);
combinedObstacleBuffer.clear();
combinedObstacleBuffer.scaleIntoMe(obstacleBuffer);
deltaTime = 0;
lastTime = 0;
addTempObstacleBufferDidChange = true;
}
//--------------------------------------------------------------
void ftFluidSimulation::setup(int _simulationWidth, int _simulationHeight, int _densityWidth, int _densityHeight) {
simulationWidth = _simulationWidth;
simulationHeight = _simulationHeight;
densityWidth = (!_densityWidth)? simulationWidth : _densityWidth;
densityHeight = (!_densityHeight)? simulationHeight: _densityHeight;
int internalFormatDensity = GL_RGBA32F;
int internalFormatVelocity = GL_RG32F;
int interformatPressure = GL_R32F;
int internalFormatObstacle = GL_R8;
densitySwapBuffer.allocate(densityWidth,densityHeight,internalFormatDensity);
densitySwapBuffer.black();
velocitySwapBuffer.allocate(simulationWidth,simulationHeight,internalFormatVelocity);
velocitySwapBuffer.black();
temperatureSwapBuffer.allocate(simulationWidth,simulationHeight,interformatPressure);
// temperatureSwapBuffer.clear(ambientTemperature.get());
temperatureSwapBuffer.black();
pressureSwapBuffer.allocate(simulationWidth,simulationHeight,interformatPressure);
obstacleBuffer.allocate(simulationWidth, simulationHeight, internalFormatObstacle);
obstacleBuffer.black();
createEdgeImage(obstacleBuffer);
divergenceBuffer.allocate(simulationWidth, simulationHeight, interformatPressure);
smokeBuoyancyBuffer.allocate(simulationWidth, simulationHeight, internalFormatVelocity);
smokeBuoyancyBuffer.black();
vorticityFirstPassBuffer.allocate(simulationWidth, simulationHeight, internalFormatVelocity);
vorticitySecondPassBuffer.allocate(simulationWidth, simulationHeight, internalFormatVelocity);
addPressureBuffer.allocate(simulationWidth, simulationHeight, interformatPressure);
addPressureBufferDidChange = false;
addTempObstacleBuffer.allocate(simulationWidth, simulationHeight, internalFormatObstacle);
addTempObstacleBuffer.black();
addTempObstacleBufferDidChange = false;
combinedObstacleBuffer.allocate(simulationWidth, simulationHeight, internalFormatObstacle);
combinedObstacleBuffer.black();
combinedObstacleBuffer.stretchIntoMe(obstacleBuffer);
deltaTime = 0;
lastTime = 0;
addTempObstacleBufferDidChange = true;
}
//--------------------------------------------------------------
void ftFluidSimulation::resetBackground() {
obstacleBuffer.clear();
createEdgeImage(obstacleBuffer);
combinedObstacleNeedsToBeCleaned = true;
}
