static float blender_camera_focal_distance(BL::Object b_ob, BL::Camera b_camera)
{
BL::Object b_dof_object = b_camera.dof_object();
if(!b_dof_object)
return b_camera.dof_distance();
/* for dof object, return distance along camera Z direction */
Transform obmat = transform_clear_scale(get_transform(b_ob.matrix_world()));
Transform dofmat = get_transform(b_dof_object.matrix_world());
Transform mat = transform_inverse(obmat) * dofmat;
return fabsf(transform_get_column(&mat, 3).z);
}
static float blender_camera_focal_distance(BL::RenderEngine b_engine, BL::Object b_ob, BL::Camera b_camera)
{
BL::Object b_dof_object = b_camera.dof_object();
if(!b_dof_object)
return b_camera.dof_distance();
/* for dof object, return distance along camera Z direction */
BL::Array<float, 16> b_ob_matrix;
b_engine.camera_model_matrix(b_ob, b_ob_matrix);
Transform obmat = get_transform(b_ob_matrix);
Transform dofmat = get_transform(b_dof_object.matrix_world());
Transform mat = transform_inverse(obmat) * dofmat;
return fabsf(transform_get_column(&mat, 3).z);
}
static float blender_camera_focal_distance(BL::RenderEngine b_engine, BL::Object b_ob, BL::Camera b_camera)
{
BL::Object b_dof_object = b_camera.dof_object();
if(!b_dof_object)
return b_camera.dof_distance();
/* for dof object, return distance along camera Z direction */
BL::Array<float, 16> b_ob_matrix;
b_engine.camera_model_matrix(b_ob, b_ob_matrix);
Transform obmat = get_transform(b_ob_matrix);
Transform dofmat = get_transform(b_dof_object.matrix_world());
float3 view_dir = normalize(transform_get_column(&obmat, 2));
float3 dof_dir = transform_get_column(&obmat, 3) - transform_get_column(&dofmat, 3);
return fabsf(dot(view_dir, dof_dir));
}
void BlenderSync::get_camera_ortho_scale(Camera* cam, BL::Camera &b_camera, int width, int height, float *ortho_scale) {
float x_aspect = width * cam->pixelaspect.x;
float y_aspect = height * cam->pixelaspect.y;
cam->ortho_scale = b_camera.ortho_scale();
calculate_ortho_scale(cam, x_aspect, y_aspect, ortho_scale);
} //get_camera_ortho_scale()
