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Aded a meshbuffer version of makePlanarTextureMapping.

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git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2171 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
hybrid 2009-01-30 17:40:09 +00:00
parent 7810313bd5
commit 0e00187fdd
3 changed files with 45 additions and 33 deletions
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7
include/IMeshManipulator.h
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@ -119,6 +119,13 @@ namespace scene
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 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

68
source/Irrlicht/CMeshManipulator.cpp
View File

@ -387,10 +387,6 @@ SMesh* CMeshManipulator::createMeshCopy(scene::IMesh* mesh) const
//! 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 releation between world space and
//! texture coordinate space.
void CMeshManipulator::makePlanarTextureMapping(scene::IMesh* mesh, f32 resolution=0.01f) const
{
if (!mesh)
@ -399,42 +395,48 @@ void CMeshManipulator::makePlanarTextureMapping(scene::IMesh* mesh, f32 resoluti
const u32 bcount = mesh->getMeshBufferCount();
for ( u32 b=0; b<bcount; ++b)
{
IMeshBuffer* buffer = mesh->getMeshBuffer(b);
u32 idxcnt = buffer->getIndexCount();
u16* idx = buffer->getIndices();
makePlanarTextureMapping(mesh->getMeshBuffer(b), resolution);
}
}
for (u32 i=0; i<idxcnt; i+=3)
//! Creates a planar texture mapping on the meshbuffer
void CMeshManipulator::makePlanarTextureMapping(scene::IMeshBuffer* buffer, f32 resolution) const
{
u32 idxcnt = buffer->getIndexCount();
u16* idx = buffer->getIndices();
for (u32 i=0; i<idxcnt; i+=3)
{
core::plane3df p(buffer->getPosition(idx[i+0]), buffer->getPosition(idx[i+1]), buffer->getPosition(idx[i+2]));
p.Normal.X = fabsf(p.Normal.X);
p.Normal.Y = fabsf(p.Normal.Y);
p.Normal.Z = fabsf(p.Normal.Z);
// calculate planar mapping worldspace coordinates
if (p.Normal.X > p.Normal.Y && p.Normal.X > p.Normal.Z)
{
core::plane3df p(buffer->getPosition(idx[i+0]), buffer->getPosition(idx[i+1]), buffer->getPosition(idx[i+2]));
p.Normal.X = fabsf(p.Normal.X);
p.Normal.Y = fabsf(p.Normal.Y);
p.Normal.Z = fabsf(p.Normal.Z);
// calculate planar mapping worldspace coordinates
if (p.Normal.X > p.Normal.Y && p.Normal.X > p.Normal.Z)
for (u32 o=0; o!=3; ++o)
{
for (u32 o=0; o!=3; ++o)
{
buffer->getTCoords(idx[i+o]).X = buffer->getPosition(idx[i+o]).Y * resolution;
buffer->getTCoords(idx[i+o]).Y = buffer->getPosition(idx[i+o]).Z * resolution;
}
buffer->getTCoords(idx[i+o]).X = buffer->getPosition(idx[i+o]).Y * resolution;
buffer->getTCoords(idx[i+o]).Y = buffer->getPosition(idx[i+o]).Z * resolution;
}
else
if (p.Normal.Y > p.Normal.X && p.Normal.Y > p.Normal.Z)
}
else
if (p.Normal.Y > p.Normal.X && p.Normal.Y > p.Normal.Z)
{
for (u32 o=0; o!=3; ++o)
{
for (u32 o=0; o!=3; ++o)
{
buffer->getTCoords(idx[i+o]).X = buffer->getPosition(idx[i+o]).X * resolution;
buffer->getTCoords(idx[i+o]).Y = buffer->getPosition(idx[i+o]).Z * resolution;
}
buffer->getTCoords(idx[i+o]).X = buffer->getPosition(idx[i+o]).X * resolution;
buffer->getTCoords(idx[i+o]).Y = buffer->getPosition(idx[i+o]).Z * resolution;
}
else
}
else
{
for (u32 o=0; o!=3; ++o)
{
for (u32 o=0; o!=3; ++o)
{
buffer->getTCoords(idx[i+o]).X = buffer->getPosition(idx[i+o]).X * resolution;
buffer->getTCoords(idx[i+o]).Y = buffer->getPosition(idx[i+o]).Y * resolution;
}
buffer->getTCoords(idx[i+o]).X = buffer->getPosition(idx[i+o]).X * resolution;
buffer->getTCoords(idx[i+o]).Y = buffer->getPosition(idx[i+o]).Y * resolution;
}
}
}

3
source/Irrlicht/CMeshManipulator.h
View File

@ -85,6 +85,9 @@ public:
texture coordinate space. */
virtual void makePlanarTextureMapping(scene::IMesh* mesh, f32 resolution) const;
//! Creates a planar texture mapping on the meshbuffer
virtual void makePlanarTextureMapping(scene::IMeshBuffer* meshbuffer, f32 resolution=0.001f) const;
//! Creates a copy of the mesh, which will only consist of S3DVertexTangents vertices.
virtual IMesh* createMeshWithTangents(IMesh* mesh, bool recalculateNormals=false, bool smooth=false, bool angleWeighted=false) const;