void TopazSample::reshape(int32_t width, int32_t height)
{
initFramebuffers(width, height);
oit->InitAccumulationRenderTargets(width, height);
initScene();
initCommandList();
initCommandListWeightBlended();
CHECK_GL_ERROR();
}
// Set things up and run
int main(int argc, char** argv) {
makeWindow(argc, argv);
acquireSharedOpenCLContext();
initObjects();
initPrograms();
initFramebuffers();
initShaders();
setupGlutCallbacks();
camera.pos = MakeVector(0, 0, -12);
camera.up = MakeVector(0, 1, 0);
camera.front = MakeVector(0, 0, 1);
glutSetCursor(GLUT_CURSOR_NONE);
glutMainLoop();
releaseSharedOpenCLContext();
}
/***************************************************
** display function -- what to draw **
***************************************************/
void display ( void )
{
/* Initialize our framebuffer objects */
if (!fb) initFramebuffers();
/* determing what are fps have been up till now */
fps = UpdateFPS();
/* benchmarking may be desired, if so we need to know # of frames done */
if (benchmarking) frameCount++;
/* some setup */
glEnable( GL_NORMALIZE );
glEnable( GL_DEPTH_TEST );
glClearDepth( 1.0 );
glClearColor( 0, 0, 0, 0 );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
/* Draw the scene we want to the framebuffer 'fb' */
AllowUnclampedColors(); // This process may involve values outside [0..1]
if (drawRefractionOnly)
DrawRefractedScene( viewpoint );
else
DrawCausticsSceneWithLightSpaceGatheredPhotons( viewpoint );
ResumeClampingColors(); // OK, we can allow OpenGL to start clamping to [0..1] again.
/* we only want to draw to the size of the visible screen, even if 'fb' is bigger! */
glViewport( 0, 0, screenSize, screenSize );
/* either display our final result, or, depending on user input, some intermediate step */
if (displayBig > 0)
DrawBigScreenTexture(displayBig);
else
{
displayLargeTexture( fb->GetColorTextureID( 0 ), GL_LINEAR, GL_LINEAR );
/* draw miscellaneous data onscreen */
glDisable( GL_DEPTH_TEST );
if (drawSideImages && displayBig < 1)
DisplaySideImages();
if (drawHelpMenu)
drawHelpScreen();
if (shaderLoadError)
drawErrorMessage();
if (!screenShot && !makingMovie)
displayTimer( fps );
glEnable( GL_DEPTH_TEST );
}
/* grab a screenshot if necessary */
if (screenShot)
{
/* note data is stored in memory with y-inverted to how stored in PPM, so invert when writing */
glReadPixels( 0, 0, screenSize, screenSize, GL_RGB, GL_UNSIGNED_BYTE, screenCapture );
WritePPM( screenCaptureFilename, PPM_RAW, screenSize, -screenSize, screenCapture );
screenShot = 0;
}
/* flush GL commands & swap buffers */
glFlush();
glutSwapBuffers();
/* if we're using the built-in movie capture, we need to add a frame */
if (makingMovie) makeMovie->AddCurrentFrame();
}
