void runCuda() {
if (camchanged) {
iteration = 0;
Camera &cam = renderState->camera;
glm::vec3 v = cam.view;
glm::vec3 u = cam.up;
glm::vec3 r = glm::cross(v, u);
glm::mat4 rotmat = glm::rotate(theta, r) * glm::rotate(phi, u);
cam.view = glm::vec3(rotmat * glm::vec4(v, 0.f));
cam.up = glm::vec3(rotmat * glm::vec4(u, 0.f));
cam.position += cammove.x * r + cammove.y * u + cammove.z * v;
// Camera to grid center
float distance = cam.resolution.x / 2 / tan(cam.fov.x / 2);
cam.toGrid = glm::vec3(cam.view.x*distance, cam.view.y*distance, cam.view.z*distance);
// Find camera right vector
float rAngle = -PI / 2;
float qx = cam.view.x * sin(rAngle / 2);
float qy = cam.view.y * sin(rAngle / 2);
float qz = cam.view.z * sin(rAngle / 2);
float qw = cos(rAngle / 2);
glm::quat q = glm::quat(qw, qx, qy, qz);
cam.right = q * cam.up;
theta = phi = 0;
cammove = glm::vec3();
camchanged = false;
}
// Map OpenGL buffer object for writing from CUDA on a single GPU
// No data is moved (Win & Linux). When mapped to CUDA, OpenGL should not use this buffer
if (iteration == 0) {
pathtraceFree();
pathtraceInit(scene);
}
if (iteration < renderState->iterations) {
uchar4 *pbo_dptr = NULL;
iteration++;
cudaGLMapBufferObject((void**)&pbo_dptr, pbo);
// execute the kernel
int frame = 0;
pathtrace(pbo_dptr, frame, iteration);
// unmap buffer object
cudaGLUnmapBufferObject(pbo);
} else {
saveImage();
pathtraceFree();
cudaDeviceReset();
exit(EXIT_SUCCESS);
}
}
void runCuda() {
if (camchanged) {
iteration = 0;
Camera &cam = renderState->camera;
glm::vec3 v = cam.view;
glm::vec3 u = cam.up;
glm::vec3 r = glm::cross(v, u);
glm::mat4 rotmat = glm::rotate(theta, r) * glm::rotate(phi, u);
cam.view = glm::vec3(rotmat * glm::vec4(v, 0.f));
cam.up = glm::vec3(rotmat * glm::vec4(u, 0.f));
cam.position += cammove.x * r + cammove.y * u + cammove.z * v;
theta = phi = 0;
cammove = glm::vec3();
camchanged = false;
}
// Map OpenGL buffer object for writing from CUDA on a single GPU
// No data is moved (Win & Linux). When mapped to CUDA, OpenGL should not use this buffer
if (iteration == 0) {
pathtraceFree();
pathtraceInit(scene);
}
if (iteration < renderState->iterations) {
uchar4 *pbo_dptr = NULL;
iteration++;
cudaGLMapBufferObject((void**)&pbo_dptr, pbo);
// execute the kernel
if( scene->blur ) {
for( int frame = 0; frame<(scene->frames); frame++ ){
pathtrace(pbo_dptr, frame, scene->frames, iteration);
//printf("frame is : %d", frame);
}
} else {
pathtrace(pbo_dptr, 0, 0, iteration);
}
// unmap buffer object
cudaGLUnmapBufferObject(pbo);
} else {
saveImage();
pathtraceFree();
cudaDeviceReset();
exit(EXIT_SUCCESS);
}
}
