diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cpp')
-rw-r--r-- | source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cpp b/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cpp new file mode 100644 index 00000000000..345fc37b340 --- /dev/null +++ b/source/blender/compositor/operations/COM_ConvertDepthToRadiusOperation.cpp @@ -0,0 +1,97 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Contributor: + * Jeroen Bakker + * Monique Dewanchand + */ + +#include "COM_ConvertDepthToRadiusOperation.h" +#include "BLI_math.h" +#include "DNA_camera_types.h" + +ConvertDepthToRadiusOperation::ConvertDepthToRadiusOperation(): NodeOperation() { + this->addInputSocket(COM_DT_VALUE); + this->addOutputSocket(COM_DT_VALUE); + this->inputOperation = NULL; + this->fStop = 128.0f; + this->cameraObject = NULL; + this->maxRadius = 32.0f; +} + +float ConvertDepthToRadiusOperation::determineFocalDistance() { + + if (cameraObject == NULL || cameraObject->type != OB_CAMERA) { + return 10.0f; + } else { + Camera *camera= (Camera*)this->cameraObject->data; + cam_lens = camera->lens; + if (camera->dof_ob) { + /* too simple, better to return the distance on the view axis only + * return len_v3v3(ob->obmat[3], cam->dof_ob->obmat[3]); */ + float mat[4][4], imat[4][4], obmat[4][4]; + + copy_m4_m4(obmat, cameraObject->obmat); + normalize_m4(obmat); + invert_m4_m4(imat, obmat); + mult_m4_m4m4(mat, imat, camera->dof_ob->obmat); + return (float)fabs(mat[3][2]); + } + return camera->YF_dofdist; + } +} + +void ConvertDepthToRadiusOperation::initExecution() { + this->inputOperation = this->getInputSocketReader(0); + float focalDistance = determineFocalDistance(); + if (focalDistance==0.0f) focalDistance = 1e10f; /* if the dof is 0.0 then set it be be far away */ + inverseFocalDistance = 1.f/focalDistance; + this->aspect = (this->getWidth() > this->getHeight()) ? (this->getHeight() / (float)this->getWidth()) : (this->getWidth() / (float)this->getHeight()); + this->aperture = 0.5f*(this->cam_lens / (this->aspect*32.f)) / this->fStop; + float minsz = MIN2(getWidth(), getHeight()); + this->dof_sp = (float)minsz / (16.f / cam_lens); // <- == aspect * MIN2(img->x, img->y) / tan(0.5f * fov); +} + +void ConvertDepthToRadiusOperation::executePixel(float* outputValue, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) { + float inputValue[4]; + float z; + float radius; + inputOperation->read(inputValue, x, y, sampler, inputBuffers); + z = inputValue[0]; + if (z!=0.f) { + float iZ = (1.f/z); + + // bug #6656 part 2b, do not rescale + /* + bcrad = 0.5f*fabs(aperture*(dof_sp*(cam_invfdist - iZ) - 1.f)); + // scale crad back to original maximum and blend + crad->rect[px] = bcrad + wts->rect[px]*(scf*crad->rect[px] - bcrad); + */ + radius = 0.5f*fabsf(this->aperture*(dof_sp*(inverseFocalDistance - iZ) - 1.f)); + // 'bug' #6615, limit minimum radius to 1 pixel, not really a solution, but somewhat mitigates the problem + if (radius < 0.5f) radius = 0.5f; + if (radius > maxRadius) { + radius = maxRadius; + } + outputValue[0] = radius; + } + else outputValue[0] = 0.0f; +} + +void ConvertDepthToRadiusOperation::deinitExecution() { + this->inputOperation = NULL; +} |