forked from Mirrorlandia_minetest/minetest
148 lines
3.3 KiB
C++
148 lines
3.3 KiB
C++
/*
|
|
Minetest-c55
|
|
Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
|
|
|
|
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.
|
|
*/
|
|
|
|
#ifndef MAPBLOCK_MESH_HEADER
|
|
#define MAPBLOCK_MESH_HEADER
|
|
|
|
#include "common_irrlicht.h"
|
|
#include "mapblock_nodemod.h"
|
|
#include "voxel.h"
|
|
|
|
/*
|
|
Mesh making stuff
|
|
*/
|
|
|
|
/*
|
|
This is used because CMeshBuffer::append() is very slow
|
|
*/
|
|
struct PreMeshBuffer
|
|
{
|
|
video::SMaterial material;
|
|
core::array<u16> indices;
|
|
core::array<video::S3DVertex> vertices;
|
|
};
|
|
|
|
class MeshCollector
|
|
{
|
|
public:
|
|
void append(
|
|
video::SMaterial material,
|
|
const video::S3DVertex* const vertices,
|
|
u32 numVertices,
|
|
const u16* const indices,
|
|
u32 numIndices
|
|
)
|
|
{
|
|
PreMeshBuffer *p = NULL;
|
|
for(u32 i=0; i<m_prebuffers.size(); i++)
|
|
{
|
|
PreMeshBuffer &pp = m_prebuffers[i];
|
|
if(pp.material != material)
|
|
continue;
|
|
|
|
p = &pp;
|
|
break;
|
|
}
|
|
|
|
if(p == NULL)
|
|
{
|
|
PreMeshBuffer pp;
|
|
pp.material = material;
|
|
m_prebuffers.push_back(pp);
|
|
p = &m_prebuffers[m_prebuffers.size()-1];
|
|
}
|
|
|
|
u32 vertex_count = p->vertices.size();
|
|
for(u32 i=0; i<numIndices; i++)
|
|
{
|
|
u32 j = indices[i] + vertex_count;
|
|
if(j > 65535)
|
|
{
|
|
dstream<<"FIXME: Meshbuffer ran out of indices"<<std::endl;
|
|
// NOTE: Fix is to just add an another MeshBuffer
|
|
}
|
|
p->indices.push_back(j);
|
|
}
|
|
for(u32 i=0; i<numVertices; i++)
|
|
{
|
|
p->vertices.push_back(vertices[i]);
|
|
}
|
|
}
|
|
|
|
void fillMesh(scene::SMesh *mesh)
|
|
{
|
|
/*dstream<<"Filling mesh with "<<m_prebuffers.size()
|
|
<<" meshbuffers"<<std::endl;*/
|
|
for(u32 i=0; i<m_prebuffers.size(); i++)
|
|
{
|
|
PreMeshBuffer &p = m_prebuffers[i];
|
|
|
|
/*dstream<<"p.vertices.size()="<<p.vertices.size()
|
|
<<", p.indices.size()="<<p.indices.size()
|
|
<<std::endl;*/
|
|
|
|
// Create meshbuffer
|
|
|
|
// This is a "Standard MeshBuffer",
|
|
// it's a typedeffed CMeshBuffer<video::S3DVertex>
|
|
scene::SMeshBuffer *buf = new scene::SMeshBuffer();
|
|
// Set material
|
|
buf->Material = p.material;
|
|
//((scene::SMeshBuffer*)buf)->Material = p.material;
|
|
// Use VBO
|
|
//buf->setHardwareMappingHint(scene::EHM_STATIC);
|
|
// Add to mesh
|
|
mesh->addMeshBuffer(buf);
|
|
// Mesh grabbed it
|
|
buf->drop();
|
|
|
|
buf->append(p.vertices.pointer(), p.vertices.size(),
|
|
p.indices.pointer(), p.indices.size());
|
|
}
|
|
}
|
|
|
|
private:
|
|
core::array<PreMeshBuffer> m_prebuffers;
|
|
};
|
|
|
|
// Helper functions
|
|
video::SColor MapBlock_LightColor(u8 alpha, u8 light);
|
|
|
|
class MapBlock;
|
|
|
|
struct MeshMakeData
|
|
{
|
|
u32 m_daynight_ratio;
|
|
NodeModMap m_temp_mods;
|
|
VoxelManipulator m_vmanip;
|
|
v3s16 m_blockpos;
|
|
|
|
/*
|
|
Copy central data directly from block, and other data from
|
|
parent of block.
|
|
*/
|
|
void fill(u32 daynight_ratio, MapBlock *block);
|
|
};
|
|
|
|
// This is the highest-level function in here
|
|
scene::SMesh* makeMapBlockMesh(MeshMakeData *data);
|
|
|
|
#endif
|
|
|