forked from Mirrorlandia_minetest/irrlicht
2ae2a551a6
GLES drivers adapted, but only did make compile-tests. git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475
446 lines
19 KiB
C++
446 lines
19 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
|
|
|
#ifndef __I_MESH_MANIPULATOR_H_INCLUDED__
|
|
#define __I_MESH_MANIPULATOR_H_INCLUDED__
|
|
|
|
#include "IReferenceCounted.h"
|
|
#include "vector3d.h"
|
|
#include "aabbox3d.h"
|
|
#include "matrix4.h"
|
|
#include "IAnimatedMesh.h"
|
|
#include "IMeshBuffer.h"
|
|
#include "SVertexManipulator.h"
|
|
|
|
namespace irr
|
|
{
|
|
namespace scene
|
|
{
|
|
|
|
struct SMesh;
|
|
|
|
//! An interface for easy manipulation of meshes.
|
|
/** Scale, set alpha value, flip surfaces, and so on. This exists for
|
|
fixing problems with wrong imported or exported meshes quickly after
|
|
loading. It is not intended for doing mesh modifications and/or
|
|
animations during runtime.
|
|
*/
|
|
class IMeshManipulator : public virtual IReferenceCounted
|
|
{
|
|
public:
|
|
|
|
//! Flips the direction of surfaces.
|
|
/** Changes backfacing triangles to frontfacing
|
|
triangles and vice versa.
|
|
\param mesh Mesh on which the operation is performed. */
|
|
virtual void flipSurfaces(IMesh* mesh) const = 0;
|
|
|
|
//! Sets the alpha vertex color value of the whole mesh to a new value.
|
|
/** \param mesh Mesh on which the operation is performed.
|
|
\param alpha New alpha value. Must be a value between 0 and 255. */
|
|
void setVertexColorAlpha(IMesh* mesh, s32 alpha) const
|
|
{
|
|
apply(scene::SVertexColorSetAlphaManipulator(alpha), mesh);
|
|
}
|
|
|
|
//! Sets the alpha vertex color value of the whole mesh to a new value.
|
|
/** \param buffer Meshbuffer on which the operation is performed.
|
|
\param alpha New alpha value. Must be a value between 0 and 255. */
|
|
void setVertexColorAlpha(IMeshBuffer* buffer, s32 alpha) const
|
|
{
|
|
apply(scene::SVertexColorSetAlphaManipulator(alpha), buffer);
|
|
}
|
|
|
|
//! Sets the colors of all vertices to one color
|
|
/** \param mesh Mesh on which the operation is performed.
|
|
\param color New color. */
|
|
void setVertexColors(IMesh* mesh, video::SColor color) const
|
|
{
|
|
apply(scene::SVertexColorSetManipulator(color), mesh);
|
|
}
|
|
|
|
//! Sets the colors of all vertices to one color
|
|
/** \param buffer Meshbuffer on which the operation is performed.
|
|
\param color New color. */
|
|
void setVertexColors(IMeshBuffer* buffer, video::SColor color) const
|
|
{
|
|
apply(scene::SVertexColorSetManipulator(color), buffer);
|
|
}
|
|
|
|
//! Recalculates all normals of the mesh.
|
|
/** \param mesh: Mesh on which the operation is performed.
|
|
\param smooth: If the normals shall be smoothed.
|
|
\param angleWeighted: If the normals shall be smoothed in relation to their angles. More expensive, but also higher precision. */
|
|
virtual void recalculateNormals(IMesh* mesh, bool smooth = false,
|
|
bool angleWeighted = false) const=0;
|
|
|
|
//! Recalculates all normals of the mesh buffer.
|
|
/** \param buffer: Mesh buffer on which the operation is performed.
|
|
\param smooth: If the normals shall be smoothed.
|
|
\param angleWeighted: If the normals shall be smoothed in relation to their angles. More expensive, but also higher precision. */
|
|
virtual void recalculateNormals(IMeshBuffer* buffer,
|
|
bool smooth = false, bool angleWeighted = false) const=0;
|
|
|
|
//! Recalculates tangents, requires a tangent mesh
|
|
/** \param mesh Mesh on which the operation is performed.
|
|
\param recalculateNormals If the normals shall be recalculated, otherwise original normals of the mesh are used unchanged.
|
|
\param smooth If the normals shall be smoothed.
|
|
\param angleWeighted If the normals shall be smoothed in relation to their angles. More expensive, but also higher precision.
|
|
*/
|
|
virtual void recalculateTangents(IMesh* mesh,
|
|
bool recalculateNormals=false, bool smooth=false,
|
|
bool angleWeighted=false) const=0;
|
|
|
|
//! Recalculates tangents, requires a tangent mesh buffer
|
|
/** \param buffer Meshbuffer on which the operation is performed.
|
|
\param recalculateNormals If the normals shall be recalculated, otherwise original normals of the buffer are used unchanged.
|
|
\param smooth If the normals shall be smoothed.
|
|
\param angleWeighted If the normals shall be smoothed in relation to their angles. More expensive, but also higher precision.
|
|
*/
|
|
virtual void recalculateTangents(IMeshBuffer* buffer,
|
|
bool recalculateNormals=false, bool smooth=false,
|
|
bool angleWeighted=false) const=0;
|
|
|
|
//! Scales the actual mesh, not a scene node.
|
|
/** \param mesh Mesh on which the operation is performed.
|
|
\param factor Scale factor for each axis. */
|
|
void scale(IMesh* mesh, const core::vector3df& factor) const
|
|
{
|
|
apply(SVertexPositionScaleManipulator(factor), mesh, true);
|
|
}
|
|
|
|
//! Scales the actual meshbuffer, not a scene node.
|
|
/** \param buffer Meshbuffer on which the operation is performed.
|
|
\param factor Scale factor for each axis. */
|
|
void scale(IMeshBuffer* buffer, const core::vector3df& factor) const
|
|
{
|
|
apply(SVertexPositionScaleManipulator(factor), buffer, true);
|
|
}
|
|
|
|
//! Scales the actual mesh, not a scene node.
|
|
/** \deprecated Use scale() instead. This method may be removed by Irrlicht 1.9
|
|
\param mesh Mesh on which the operation is performed.
|
|
\param factor Scale factor for each axis. */
|
|
_IRR_DEPRECATED_ void scaleMesh(IMesh* mesh, const core::vector3df& factor) const {return scale(mesh,factor);}
|
|
|
|
//! Scale the texture coords of a mesh.
|
|
/** \param mesh Mesh on which the operation is performed.
|
|
\param factor Vector which defines the scale for each axis.
|
|
\param level Number of texture coord, starting from 1. Support for level 2 exists for LightMap buffers. */
|
|
void scaleTCoords(scene::IMesh* mesh, const core::vector2df& factor, u32 level=1) const
|
|
{
|
|
apply(SVertexTCoordsScaleManipulator(factor, level), mesh);
|
|
}
|
|
|
|
//! Scale the texture coords of a meshbuffer.
|
|
/** \param buffer Meshbuffer on which the operation is performed.
|
|
\param factor Vector which defines the scale for each axis.
|
|
\param level Number of texture coord, starting from 1. Support for level 2 exists for LightMap buffers. */
|
|
void scaleTCoords(scene::IMeshBuffer* buffer, const core::vector2df& factor, u32 level=1) const
|
|
{
|
|
apply(SVertexTCoordsScaleManipulator(factor, level), buffer);
|
|
}
|
|
|
|
//! Applies a transformation to a mesh
|
|
/** \param mesh Mesh on which the operation is performed.
|
|
\param m transformation matrix.
|
|
\param normalsUpdate When 0 - don't update normals.
|
|
When 1 - update normals with inverse transposed of the transformation matrix
|
|
*/
|
|
void transform(IMesh* mesh, const core::matrix4& m, u32 normalsUpdate = 0) const
|
|
{
|
|
apply(SVertexPositionTransformManipulator(m), mesh, true);
|
|
|
|
if ( normalsUpdate == 1 )
|
|
{
|
|
core::matrix4 invT;
|
|
if ( m.getInverse(invT) )
|
|
{
|
|
invT = invT.getTransposed();
|
|
apply(SVertexNormalTransformManipulator(invT), mesh, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
//! Applies a transformation to a meshbuffer
|
|
/** \param buffer Meshbuffer on which the operation is performed.
|
|
\param m transformation matrix.
|
|
\param normalsUpdate When 0 - don't update normals.
|
|
When 1 - update normals with inverse transposed of the transformation matrix
|
|
*/
|
|
void transform(IMeshBuffer* buffer, const core::matrix4& m, u32 normalsUpdate = 0) const
|
|
{
|
|
apply(SVertexPositionTransformManipulator(m), buffer, true);
|
|
|
|
if ( normalsUpdate == 1 )
|
|
{
|
|
core::matrix4 invT;
|
|
if ( m.getInverse(invT) )
|
|
{
|
|
invT = invT.getTransposed();
|
|
apply(SVertexNormalTransformManipulator(invT), buffer, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
//! Applies a transformation to a mesh
|
|
/** \deprecated Use transform() instead. This method may be removed by Irrlicht 1.9
|
|
\param mesh Mesh on which the operation is performed.
|
|
\param m transformation matrix. */
|
|
_IRR_DEPRECATED_ virtual void transformMesh(IMesh* mesh, const core::matrix4& m) const {return transform(mesh,m);}
|
|
|
|
//! Creates a planar texture mapping on the mesh
|
|
/** \param mesh: Mesh on which the operation is performed.
|
|
\param resolution: resolution of the planar mapping. This is
|
|
the value specifying which is the relation between world space
|
|
and texture coordinate space. */
|
|
virtual void makePlanarTextureMapping(IMesh* mesh, f32 resolution=0.001f) const=0;
|
|
|
|
//! Creates a planar texture mapping on the meshbuffer
|
|
/** \param meshbuffer: Buffer on which the operation is performed.
|
|
\param resolution: resolution of the planar mapping. This is
|
|
the value specifying which is the relation between world space
|
|
and texture coordinate space. */
|
|
virtual void makePlanarTextureMapping(scene::IMeshBuffer* meshbuffer, f32 resolution=0.001f) const=0;
|
|
|
|
//! Creates a planar texture mapping on the buffer
|
|
/** This method is currently implemented towards the LWO planar mapping. A more general biasing might be required.
|
|
\param mesh Mesh on which the operation is performed.
|
|
\param resolutionS Resolution of the planar mapping in horizontal direction. This is the ratio between object space and texture space.
|
|
\param resolutionT Resolution of the planar mapping in vertical direction. This is the ratio between object space and texture space.
|
|
\param axis The axis along which the texture is projected. The allowed values are 0 (X), 1(Y), and 2(Z).
|
|
\param offset Vector added to the vertex positions (in object coordinates).
|
|
*/
|
|
virtual void makePlanarTextureMapping(scene::IMesh* mesh,
|
|
f32 resolutionS, f32 resolutionT,
|
|
u8 axis, const core::vector3df& offset) const=0;
|
|
|
|
//! Creates a planar texture mapping on the meshbuffer
|
|
/** This method is currently implemented towards the LWO planar mapping. A more general biasing might be required.
|
|
\param buffer Buffer on which the operation is performed.
|
|
\param resolutionS Resolution of the planar mapping in horizontal direction. This is the ratio between object space and texture space.
|
|
\param resolutionT Resolution of the planar mapping in vertical direction. This is the ratio between object space and texture space.
|
|
\param axis The axis along which the texture is projected. The allowed values are 0 (X), 1(Y), and 2(Z).
|
|
\param offset Vector added to the vertex positions (in object coordinates).
|
|
*/
|
|
virtual void makePlanarTextureMapping(scene::IMeshBuffer* buffer,
|
|
f32 resolutionS, f32 resolutionT,
|
|
u8 axis, const core::vector3df& offset) const=0;
|
|
|
|
//! Clones a static IMesh into a modifiable SMesh.
|
|
/** All meshbuffers in the returned SMesh
|
|
are of type SMeshBuffer or SMeshBufferLightMap.
|
|
\param mesh Mesh to copy.
|
|
\return Cloned mesh. If you no longer need the
|
|
cloned mesh, you should call SMesh::drop(). See
|
|
IReferenceCounted::drop() for more information. */
|
|
virtual SMesh* createMeshCopy(IMesh* mesh) const = 0;
|
|
|
|
//! Creates a copy of the mesh, which will only consist of S3DVertexTangents vertices.
|
|
/** This is useful if you want to draw tangent space normal
|
|
mapped geometry because it calculates the tangent and binormal
|
|
data which is needed there.
|
|
\param mesh Input mesh
|
|
\param recalculateNormals The normals are recalculated if set,
|
|
otherwise the original ones are kept. Note that keeping the
|
|
normals may introduce inaccurate tangents if the normals are
|
|
very different to those calculated from the faces.
|
|
\param smooth The normals/tangents are smoothed across the
|
|
meshbuffer's faces if this flag is set.
|
|
\param angleWeighted Improved smoothing calculation used
|
|
\param recalculateTangents Whether are actually calculated, or just the mesh with proper type is created.
|
|
\return Mesh consisting only of S3DVertexTangents vertices. If
|
|
you no longer need the cloned mesh, you should call
|
|
IMesh::drop(). See IReferenceCounted::drop() for more
|
|
information. */
|
|
virtual IMesh* createMeshWithTangents(IMesh* mesh,
|
|
bool recalculateNormals=false, bool smooth=false,
|
|
bool angleWeighted=false, bool recalculateTangents=true) const=0;
|
|
|
|
//! Creates a copy of the mesh, which will only consist of S3DVertex2TCoord vertices.
|
|
/** \param mesh Input mesh
|
|
\return Mesh consisting only of S3DVertex2TCoord vertices. If
|
|
you no longer need the cloned mesh, you should call
|
|
IMesh::drop(). See IReferenceCounted::drop() for more
|
|
information. */
|
|
virtual IMesh* createMeshWith2TCoords(IMesh* mesh) const = 0;
|
|
|
|
//! Creates a copy of the mesh, which will only consist of S3DVertex vertices.
|
|
/** \param mesh Input mesh
|
|
\return Mesh consisting only of S3DVertex vertices. If
|
|
you no longer need the cloned mesh, you should call
|
|
IMesh::drop(). See IReferenceCounted::drop() for more
|
|
information. */
|
|
virtual IMesh* createMeshWith1TCoords(IMesh* mesh) const = 0;
|
|
|
|
//! Creates a copy of a mesh with all vertices unwelded
|
|
/** \param mesh Input mesh
|
|
\return Mesh consisting only of unique faces. All vertices
|
|
which were previously shared are now duplicated. If you no
|
|
longer need the cloned mesh, you should call IMesh::drop(). See
|
|
IReferenceCounted::drop() for more information. */
|
|
virtual IMesh* createMeshUniquePrimitives(IMesh* mesh) const = 0;
|
|
|
|
//! Creates a copy of a mesh with vertices welded
|
|
/** \param mesh Input mesh
|
|
\param tolerance The threshold for vertex comparisons.
|
|
\return Mesh without redundant vertices. If you no longer need
|
|
the cloned mesh, you should call IMesh::drop(). See
|
|
IReferenceCounted::drop() for more information. */
|
|
virtual IMesh* createMeshWelded(IMesh* mesh, f32 tolerance=core::ROUNDING_ERROR_f32) const = 0;
|
|
|
|
//! Get amount of polygons in mesh.
|
|
/** \param mesh Input mesh
|
|
\return Number of polygons in mesh. */
|
|
virtual s32 getPolyCount(IMesh* mesh) const = 0;
|
|
|
|
//! Get amount of polygons in mesh.
|
|
/** \param mesh Input mesh
|
|
\return Number of polygons in mesh. */
|
|
virtual s32 getPolyCount(IAnimatedMesh* mesh) const = 0;
|
|
|
|
//! Create a new AnimatedMesh and adds the mesh to it
|
|
/** \param mesh Input mesh
|
|
\param type The type of the animated mesh to create.
|
|
\return Newly created animated mesh with mesh as its only
|
|
content. When you don't need the animated mesh anymore, you
|
|
should call IAnimatedMesh::drop(). See
|
|
IReferenceCounted::drop() for more information. */
|
|
virtual IAnimatedMesh * createAnimatedMesh(IMesh* mesh,
|
|
scene::E_ANIMATED_MESH_TYPE type = scene::EAMT_UNKNOWN) const = 0;
|
|
|
|
//! Vertex cache optimization according to the Forsyth paper
|
|
/** More information can be found at
|
|
http://home.comcast.net/~tom_forsyth/papers/fast_vert_cache_opt.html
|
|
|
|
The function is thread-safe (read: you can optimize several
|
|
meshes in different threads).
|
|
|
|
\param mesh Source mesh for the operation.
|
|
\return A new mesh optimized for the vertex cache. */
|
|
virtual IMesh* createForsythOptimizedMesh(const IMesh *mesh) const = 0;
|
|
|
|
//! Optimize the mesh with an algorithm tuned for heightmaps.
|
|
/**
|
|
This differs from usual simplification methods in two ways:
|
|
- it's intended to be lossless
|
|
- it has special care for the borders, which are useful with heightmap tiles
|
|
|
|
This function is thread-safe. Remember to weld afterwards - this
|
|
function only moves vertices, it does not weld.
|
|
|
|
\param mesh Mesh to operate on.
|
|
*/
|
|
virtual void heightmapOptimizeMesh(IMesh * const mesh, const f32 tolerance = core::ROUNDING_ERROR_f32) const = 0;
|
|
|
|
//! Optimize the meshbuffer with an algorithm tuned for heightmaps.
|
|
/**
|
|
This differs from usual simplification methods in two ways:
|
|
- it's intended to be lossless
|
|
- it has special care for the borders, which are useful with heightmap tiles
|
|
|
|
This function is thread-safe. Remember to weld afterward - this
|
|
function only moves vertices, it does not weld.
|
|
|
|
\param mb Meshbuffer to operate on.
|
|
*/
|
|
virtual void heightmapOptimizeMesh(IMeshBuffer * const mb, const f32 tolerance = core::ROUNDING_ERROR_f32) const = 0;
|
|
|
|
//! Apply a manipulator on the Meshbuffer
|
|
/** \param func A functor defining the mesh manipulation.
|
|
\param buffer The Meshbuffer to apply the manipulator to.
|
|
\param boundingBoxUpdate Specifies if the bounding box should be updated during manipulation.
|
|
\return True if the functor was successfully applied, else false. */
|
|
template <typename Functor>
|
|
bool apply(const Functor& func, IMeshBuffer* buffer, bool boundingBoxUpdate=false) const
|
|
{
|
|
return apply_(func, buffer, boundingBoxUpdate, func);
|
|
}
|
|
|
|
|
|
//! Apply a manipulator on the Mesh
|
|
/** \param func A functor defining the mesh manipulation.
|
|
\param mesh The Mesh to apply the manipulator to.
|
|
\param boundingBoxUpdate Specifies if the bounding box should be updated during manipulation.
|
|
\return True if the functor was successfully applied, else false. */
|
|
template <typename Functor>
|
|
bool apply(const Functor& func, IMesh* mesh, bool boundingBoxUpdate=false) const
|
|
{
|
|
if (!mesh)
|
|
return true;
|
|
bool result = true;
|
|
core::aabbox3df bufferbox;
|
|
for (u32 i=0; i<mesh->getMeshBufferCount(); ++i)
|
|
{
|
|
result &= apply(func, mesh->getMeshBuffer(i), boundingBoxUpdate);
|
|
if (boundingBoxUpdate)
|
|
{
|
|
if (0==i)
|
|
bufferbox.reset(mesh->getMeshBuffer(i)->getBoundingBox());
|
|
else
|
|
bufferbox.addInternalBox(mesh->getMeshBuffer(i)->getBoundingBox());
|
|
}
|
|
}
|
|
if (boundingBoxUpdate)
|
|
mesh->setBoundingBox(bufferbox);
|
|
return result;
|
|
}
|
|
|
|
protected:
|
|
//! Apply a manipulator based on the type of the functor
|
|
/** \param func A functor defining the mesh manipulation.
|
|
\param buffer The Meshbuffer to apply the manipulator to.
|
|
\param boundingBoxUpdate Specifies if the bounding box should be updated during manipulation.
|
|
\param typeTest Unused parameter, which handles the proper call selection based on the type of the Functor which is passed in two times.
|
|
\return True if the functor was successfully applied, else false. */
|
|
template <typename Functor>
|
|
bool apply_(const Functor& func, IMeshBuffer* buffer, bool boundingBoxUpdate, const IVertexManipulator& typeTest) const
|
|
{
|
|
if (!buffer)
|
|
return true;
|
|
|
|
core::aabbox3df bufferbox;
|
|
for (u32 i=0; i<buffer->getVertexCount(); ++i)
|
|
{
|
|
switch (buffer->getVertexType())
|
|
{
|
|
case video::EVT_STANDARD:
|
|
{
|
|
video::S3DVertex* verts = (video::S3DVertex*)buffer->getVertices();
|
|
func(verts[i]);
|
|
}
|
|
break;
|
|
case video::EVT_2TCOORDS:
|
|
{
|
|
video::S3DVertex2TCoords* verts = (video::S3DVertex2TCoords*)buffer->getVertices();
|
|
func(verts[i]);
|
|
}
|
|
break;
|
|
case video::EVT_TANGENTS:
|
|
{
|
|
video::S3DVertexTangents* verts = (video::S3DVertexTangents*)buffer->getVertices();
|
|
func(verts[i]);
|
|
}
|
|
break;
|
|
}
|
|
if (boundingBoxUpdate)
|
|
{
|
|
if (0==i)
|
|
bufferbox.reset(buffer->getPosition(0));
|
|
else
|
|
bufferbox.addInternalPoint(buffer->getPosition(i));
|
|
}
|
|
}
|
|
if (boundingBoxUpdate)
|
|
buffer->setBoundingBox(bufferbox);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
} // end namespace scene
|
|
} // end namespace irr
|
|
|
|
|
|
#endif
|