Panda3D
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This class aids in the visualization and manipulation of PfmFile objects. More...
#include "pfmVizzer.h"
Public Member Functions | |
PfmVizzer (PfmFile &pfm) | |
The PfmVizzer constructor receives a reference to a PfmFile which it will operate on. More... | |
void | add_vis_column (ColumnType source, ColumnType target, InternalName *name, const TransformState *transform=nullptr, const Lens *lens=nullptr, const PfmFile *undist_lut=nullptr) |
Adds a new vis column specification to the list of vertex data columns that will be generated at the next call to generate_vis_points() or generate_vis_mesh(). More... | |
double | calc_max_u_displacement () const |
Computes the maximum amount of shift, in pixels either left or right, of any pixel in the distortion map. More... | |
double | calc_max_v_displacement () const |
Computes the maximum amount of shift, in pixels either up or down, of any pixel in the distortion map. More... | |
void | clear_aux_pfm () |
Removes the auxiliary PfmFile from this PfmVizzer. More... | |
void | clear_flat_texcoord_name () |
Resets the flat_texcoord_name to empty, so that additional texture coordinates are not created. More... | |
void | clear_vis_blend () |
Removes the blending map set by a prior call to set_vis_blend(). More... | |
void | clear_vis_columns () |
Removes all of the previously-added vis columns in preparation for building a new list. More... | |
void | extrude (const Lens *lens) |
Converts each (u, v, depth) point of the Pfm file to an (x, y, z) point, by reversing project(). More... | |
NodePath | generate_vis_mesh (MeshFace face=MF_front) const |
Creates a triangle mesh with the points of the pfm as 3-d coordinates in space, and texture coordinates ranging from 0 . More... | |
NodePath | generate_vis_points () const |
Creates a point cloud with the points of the pfm as 3-d coordinates in space, and texture coordinates ranging from 0 . More... | |
const PfmFile * | get_aux_pfm () const |
Returns the reference to the auxiliary PfmFile queried by this PfmVizzer. More... | |
InternalName * | get_flat_texcoord_name () const |
Returns the flat_texcoord_name. More... | |
bool | get_keep_beyond_lens () const |
Returns the keep_beyond_lens flag. More... | |
PfmFile & | get_pfm () |
Returns the reference to the PfmFile manipulated by this PfmVizzer. More... | |
const PfmFile & | get_pfm () const |
Returns the reference to the PfmFile manipulated by this PfmVizzer. More... | |
bool | get_vis_2d () const |
Returns the vis_2d flag. More... | |
const PNMImage * | get_vis_blend () const |
Returns the blending map set by the most recent call to set_vis_blend(), or NULL if there is no blending map in effect. More... | |
bool | get_vis_inverse () const |
Returns the vis_inverse flag. More... | |
void | make_displacement (PfmFile &result, double max_u, double max_v, bool for_32bit) const |
Assuming the underlying PfmFile is a 2-d distortion mesh, with the U and V in the first two components and the third component unused, this computes an AfterEffects-style displacement map that represents the same distortion. More... | |
void | make_displacement (PNMImage &result, double max_u, double max_v, bool for_32bit) const |
Assuming the underlying PfmFile is a 2-d distortion mesh, with the U and V in the first two components and the third component unused, this computes an AfterEffects-style displacement map that represents the same distortion. More... | |
void | project (const Lens *lens, const PfmFile *undist_lut=nullptr) |
Adjusts each (x, y, z) point of the Pfm file by projecting it through the indicated lens, converting each point to a (u, v, w) texture coordinate. More... | |
void | set_aux_pfm (const PfmFile *pfm) |
Assigns an auxiliary PfmFile to this PfmVizzer. More... | |
void | set_flat_texcoord_name (InternalName *flat_texcoord_name) |
If the flat_texcoord_name is specified, it is the name of an additional vertex column that will be created for the "flat" texture coordinates, i.e. More... | |
void | set_keep_beyond_lens (bool keep_beyond_lens) |
Sets the keep_beyond_lens flag. More... | |
void | set_vis_2d (bool vis_2d) |
Sets the vis_2d flag. More... | |
void | set_vis_blend (const PNMImage *vis_blend) |
Specifies a blending map–a grayscale image–that will be applied to the vertex color during generate_vis_mesh() and generate_vis_points(). More... | |
void | set_vis_inverse (bool vis_inverse) |
Sets the vis_inverse flag. More... | |
Friends | |
class | VisColumn |
This class aids in the visualization and manipulation of PfmFile objects.
Definition at line 30 of file pfmVizzer.h.
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explicit |
void PfmVizzer::add_vis_column | ( | ColumnType | source, |
ColumnType | target, | ||
InternalName * | name, | ||
const TransformState * | transform = nullptr , |
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const Lens * | lens = nullptr , |
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const PfmFile * | undist_lut = nullptr |
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Adds a new vis column specification to the list of vertex data columns that will be generated at the next call to generate_vis_points() or generate_vis_mesh().
This advanced interface supercedes the higher-level set_vis_inverse(), set_flat_texcoord_name(), and set_vis_2d().
If you use this advanced interface, you must specify explicitly the complete list of data columns to be created in the resulting GeomVertexData, by calling add_vis_column() each time. For each column, you specify the source of the column in the PFMFile, the target column and name in the GeomVertexData, and an optional transform matrix and/or lens to transform and project the point before generating it.
Definition at line 233 of file pfmVizzer.cxx.
double PfmVizzer::calc_max_u_displacement | ( | ) | const |
Computes the maximum amount of shift, in pixels either left or right, of any pixel in the distortion map.
This can be passed to make_displacement(); see that function for more information.
Definition at line 366 of file pfmVizzer.cxx.
References PfmFile::get_point(), PNMImageHeader::get_x_size(), PNMImageHeader::get_y_size(), and PfmFile::has_point().
double PfmVizzer::calc_max_v_displacement | ( | ) | const |
Computes the maximum amount of shift, in pixels either up or down, of any pixel in the distortion map.
This can be passed to make_displacement(); see that function for more information.
Definition at line 394 of file pfmVizzer.cxx.
References PfmFile::get_point(), PNMImageHeader::get_x_size(), PNMImageHeader::get_y_size(), and PfmFile::has_point().
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Removes the auxiliary PfmFile from this PfmVizzer.
Definition at line 182 of file pfmVizzer.I.
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Resets the flat_texcoord_name to empty, so that additional texture coordinates are not created.
This may be used in lieu of the lower-level add_vis_column().
Definition at line 80 of file pfmVizzer.I.
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Removes the blending map set by a prior call to set_vis_blend().
Definition at line 150 of file pfmVizzer.I.
void PfmVizzer::clear_vis_columns | ( | ) |
Removes all of the previously-added vis columns in preparation for building a new list.
See add_vis_column().
Definition at line 215 of file pfmVizzer.cxx.
void PfmVizzer::extrude | ( | const Lens * | lens | ) |
Converts each (u, v, depth) point of the Pfm file to an (x, y, z) point, by reversing project().
If the original file is only a 1-d file, assumes that it is a depth map with implicit (u, v) coordinates.
This method is only valid for a linear lens (e.g. a PerspectiveLens or OrthographicLens). Non-linear lenses don't necessarily compute a sensible depth coordinate.
Definition at line 102 of file pfmVizzer.cxx.
NodePath PfmVizzer::generate_vis_mesh | ( | MeshFace | face = MF_front | ) | const |
Creates a triangle mesh with the points of the pfm as 3-d coordinates in space, and texture coordinates ranging from 0 .
. 1 based on the position within the pfm grid.
Definition at line 326 of file pfmVizzer.cxx.
NodePath PfmVizzer::generate_vis_points | ( | ) | const |
Creates a point cloud with the points of the pfm as 3-d coordinates in space, and texture coordinates ranging from 0 .
. 1 based on the position within the pfm grid.
Definition at line 245 of file pfmVizzer.cxx.
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Returns the reference to the auxiliary PfmFile queried by this PfmVizzer.
This contains the values that will be reflected in CT_aux_vertex3 etc. See set_aux_pfm().
Definition at line 192 of file pfmVizzer.I.
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Returns the flat_texcoord_name.
Definition at line 88 of file pfmVizzer.I.
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Returns the keep_beyond_lens flag.
Definition at line 127 of file pfmVizzer.I.
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Returns the reference to the PfmFile manipulated by this PfmVizzer.
Definition at line 17 of file pfmVizzer.I.
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Returns the reference to the PfmFile manipulated by this PfmVizzer.
Definition at line 29 of file pfmVizzer.I.
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Returns the blending map set by the most recent call to set_vis_blend(), or NULL if there is no blending map in effect.
Definition at line 159 of file pfmVizzer.I.
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void PfmVizzer::make_displacement | ( | PfmFile & | result, |
double | max_u, | ||
double | max_v, | ||
bool | for_32bit | ||
) | const |
Assuming the underlying PfmFile is a 2-d distortion mesh, with the U and V in the first two components and the third component unused, this computes an AfterEffects-style displacement map that represents the same distortion.
The indicated PNMImage will be filled in with a displacement map image, with horizontal shift in the red channel and vertical shift in the green channel, where a fully bright (or fully black) pixel indicates a shift of max_u or max_v pixels.
Use calc_max_u_displacement() and calc_max_v_displacement() to compute suitable values for max_u and max_v.
This generates a 32-bit floating-point displacement image. It is essential to check "Preserve RGB" in the interpret footage section for each displacement image. Set for_32bit true if this is meant to be used in a 32-bit project file, and false if it is meant to be used in a 16-bit project file.
Definition at line 529 of file pfmVizzer.cxx.
References PfmFile::clear(), PNMImageHeader::get_x_size(), and PNMImageHeader::get_y_size().
void PfmVizzer::make_displacement | ( | PNMImage & | result, |
double | max_u, | ||
double | max_v, | ||
bool | for_32bit | ||
) | const |
Assuming the underlying PfmFile is a 2-d distortion mesh, with the U and V in the first two components and the third component unused, this computes an AfterEffects-style displacement map that represents the same distortion.
The indicated PNMImage will be filled in with a displacement map image, with horizontal shift in the red channel and vertical shift in the green channel, where a fully bright (or fully black) pixel indicates a shift of max_u or max_v pixels.
Use calc_max_u_displacement() and calc_max_v_displacement() to compute suitable values for max_u and max_v.
This generates an integer 16-bit displacement image. It is a good idea, though not necessarily essential, to check "Preserve RGB" in the interpret footage section for each displacement image. Set for_32bit true if this is meant to be used in a 32-bit project file, and false if it is meant to be used in a 16-bit project file.
Definition at line 435 of file pfmVizzer.cxx.
References PNMImage::clear(), PNMImageHeader::get_x_size(), and PNMImageHeader::get_y_size().
Adjusts each (x, y, z) point of the Pfm file by projecting it through the indicated lens, converting each point to a (u, v, w) texture coordinate.
The resulting file can be generated to a mesh (with set_vis_inverse(true) and generate_vis_mesh()) that will apply the lens distortion to an arbitrary texture image.
Definition at line 51 of file pfmVizzer.cxx.
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Assigns an auxiliary PfmFile to this PfmVizzer.
This file will be queried by column types CT_aux_vertex1/2/3, but has no other meaning to the vizzer. This size of this PfmFile should exactly match the base PfmFile. No reference count is held and no copy is made; the caller is responsible for ensuring that the auxiliary PfmFile will persist throughout the lifetime of the PfmVizzer it is assigned to.
Definition at line 172 of file pfmVizzer.I.
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If the flat_texcoord_name is specified, it is the name of an additional vertex column that will be created for the "flat" texture coordinates, i.e.
the original 0..1 values that correspond to the 2-D index position of each point in the original pfm file.
These are the same values that will be assigned to the default texture coordinates if the vis_inverse flag is *not* true.
This may be used in lieu of the lower-level add_vis_column().
Definition at line 68 of file pfmVizzer.I.
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Sets the keep_beyond_lens flag.
When this flag is true, points that fall outside of the normal lens range in project() or in add_vis_column() will be retained anyway; when it is false, these points will be discarded.
Definition at line 119 of file pfmVizzer.I.
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Sets the vis_2d flag.
When this flag is true, only the first two (x, y) value of each depth point is considered meaningful; the z component is ignored. This is only relevant for generating visualizations.
This may be used in lieu of the lower-level add_vis_column().
Definition at line 100 of file pfmVizzer.I.
Referenced by PfmTrans::process_pfm().
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Specifies a blending map–a grayscale image–that will be applied to the vertex color during generate_vis_mesh() and generate_vis_points().
The image size must exactly match the mesh size of the PfmVizzer.
Ownership of the pointer is not kept by the PfmVizzer; it is your responsibility to ensure it does not destruct during the lifetime of the PfmVizzer (or at least not before your subsequent call to generate_vis_mesh()).
Definition at line 142 of file pfmVizzer.I.
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Sets the vis_inverse flag.
When this flag is true, vis meshes and point clouds are generated with the 3-d depth value in the texture coordinates, and the 2-d index value in the vertex position. When it is false, meshes are generated normally, with the 3-d depth value in the vertex position and the 2-d index value in the texture coordinates.
This may be used in lieu of the lower-level add_vis_column().
Definition at line 43 of file pfmVizzer.I.
Referenced by PfmTrans::process_pfm().