/*
-Minetest-c55
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2010-2013 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
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 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.
+GNU Lesser General Public License for more details.
-You should have received a copy of the GNU General Public License along
+You should have received a copy of the GNU Lesser 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.
*/
#include "mesh.h"
+#include "debug.h"
#include "log.h"
-#include <cassert>
#include <iostream>
#include <IAnimatedMesh.h>
#include <SAnimatedMesh.h>
-#include <ICameraSceneNode.h>
// In Irrlicht 1.8 the signature of ITexture::lock was changed from
// (bool, u32) to (E_TEXTURE_LOCK_MODE, u32).
return anim_mesh;
}
-static scene::IAnimatedMesh* extrudeARGB(u32 twidth, u32 theight, u8 *data)
-{
- const s32 argb_wstep = 4 * twidth;
- const s32 alpha_threshold = 1;
-
- scene::IMeshBuffer *buf = new scene::SMeshBuffer();
- video::SColor c(255,255,255,255);
-
- // Front and back
- {
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(-0.5,-0.5,-0.5, 0,0,-1, c, 0,1),
- video::S3DVertex(-0.5,+0.5,-0.5, 0,0,-1, c, 0,0),
- video::S3DVertex(+0.5,+0.5,-0.5, 0,0,-1, c, 1,0),
- video::S3DVertex(+0.5,-0.5,-0.5, 0,0,-1, c, 1,1),
- video::S3DVertex(+0.5,-0.5,+0.5, 0,0,+1, c, 1,1),
- video::S3DVertex(+0.5,+0.5,+0.5, 0,0,+1, c, 1,0),
- video::S3DVertex(-0.5,+0.5,+0.5, 0,0,+1, c, 0,0),
- video::S3DVertex(-0.5,-0.5,+0.5, 0,0,+1, c, 0,1),
- };
- u16 indices[12] = {0,1,2,2,3,0,4,5,6,6,7,4};
- buf->append(vertices, 8, indices, 12);
- }
-
- // "Interior"
- // (add faces where a solid pixel is next to a transparent one)
- u8 *solidity = new u8[(twidth+2) * (theight+2)];
- u32 wstep = twidth + 2;
- for (u32 y = 0; y < theight + 2; ++y)
- {
- u8 *scanline = solidity + y * wstep;
- if (y == 0 || y == theight + 1)
- {
- for (u32 x = 0; x < twidth + 2; ++x)
- scanline[x] = 0;
- }
- else
- {
- scanline[0] = 0;
- u8 *argb_scanline = data + (y - 1) * argb_wstep;
- for (u32 x = 0; x < twidth; ++x)
- scanline[x+1] = (argb_scanline[x*4+3] >= alpha_threshold);
- scanline[twidth + 1] = 0;
- }
- }
-
- // without this, there would be occasional "holes" in the mesh
- f32 eps = 0.01;
-
- for (u32 y = 0; y <= theight; ++y)
- {
- u8 *scanline = solidity + y * wstep + 1;
- for (u32 x = 0; x <= twidth; ++x)
- {
- if (scanline[x] && !scanline[x + wstep])
- {
- u32 xx = x + 1;
- while (scanline[xx] && !scanline[xx + wstep])
- ++xx;
- f32 vx1 = (x - eps) / (f32) twidth - 0.5;
- f32 vx2 = (xx + eps) / (f32) twidth - 0.5;
- f32 vy = 0.5 - (y - eps) / (f32) theight;
- f32 tx1 = x / (f32) twidth;
- f32 tx2 = xx / (f32) twidth;
- f32 ty = (y - 0.5) / (f32) theight;
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(vx1,vy,-0.5, 0,-1,0, c, tx1,ty),
- video::S3DVertex(vx2,vy,-0.5, 0,-1,0, c, tx2,ty),
- video::S3DVertex(vx2,vy,+0.5, 0,-1,0, c, tx2,ty),
- video::S3DVertex(vx1,vy,+0.5, 0,-1,0, c, tx1,ty),
- };
- u16 indices[6] = {0,1,2,2,3,0};
- buf->append(vertices, 4, indices, 6);
- x = xx - 1;
- }
- if (!scanline[x] && scanline[x + wstep])
- {
- u32 xx = x + 1;
- while (!scanline[xx] && scanline[xx + wstep])
- ++xx;
- f32 vx1 = (x - eps) / (f32) twidth - 0.5;
- f32 vx2 = (xx + eps) / (f32) twidth - 0.5;
- f32 vy = 0.5 - (y + eps) / (f32) theight;
- f32 tx1 = x / (f32) twidth;
- f32 tx2 = xx / (f32) twidth;
- f32 ty = (y + 0.5) / (f32) theight;
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(vx1,vy,-0.5, 0,1,0, c, tx1,ty),
- video::S3DVertex(vx1,vy,+0.5, 0,1,0, c, tx1,ty),
- video::S3DVertex(vx2,vy,+0.5, 0,1,0, c, tx2,ty),
- video::S3DVertex(vx2,vy,-0.5, 0,1,0, c, tx2,ty),
- };
- u16 indices[6] = {0,1,2,2,3,0};
- buf->append(vertices, 4, indices, 6);
- x = xx - 1;
- }
- }
- }
-
- for (u32 x = 0; x <= twidth; ++x)
- {
- u8 *scancol = solidity + x + wstep;
- for (u32 y = 0; y <= theight; ++y)
- {
- if (scancol[y * wstep] && !scancol[y * wstep + 1])
- {
- u32 yy = y + 1;
- while (scancol[yy * wstep] && !scancol[yy * wstep + 1])
- ++yy;
- f32 vx = (x - eps) / (f32) twidth - 0.5;
- f32 vy1 = 0.5 - (y - eps) / (f32) theight;
- f32 vy2 = 0.5 - (yy + eps) / (f32) theight;
- f32 tx = (x - 0.5) / (f32) twidth;
- f32 ty1 = y / (f32) theight;
- f32 ty2 = yy / (f32) theight;
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(vx,vy1,-0.5, 1,0,0, c, tx,ty1),
- video::S3DVertex(vx,vy1,+0.5, 1,0,0, c, tx,ty1),
- video::S3DVertex(vx,vy2,+0.5, 1,0,0, c, tx,ty2),
- video::S3DVertex(vx,vy2,-0.5, 1,0,0, c, tx,ty2),
- };
- u16 indices[6] = {0,1,2,2,3,0};
- buf->append(vertices, 4, indices, 6);
- y = yy - 1;
- }
- if (!scancol[y * wstep] && scancol[y * wstep + 1])
- {
- u32 yy = y + 1;
- while (!scancol[yy * wstep] && scancol[yy * wstep + 1])
- ++yy;
- f32 vx = (x + eps) / (f32) twidth - 0.5;
- f32 vy1 = 0.5 - (y - eps) / (f32) theight;
- f32 vy2 = 0.5 - (yy + eps) / (f32) theight;
- f32 tx = (x + 0.5) / (f32) twidth;
- f32 ty1 = y / (f32) theight;
- f32 ty2 = yy / (f32) theight;
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(vx,vy1,-0.5, -1,0,0, c, tx,ty1),
- video::S3DVertex(vx,vy2,-0.5, -1,0,0, c, tx,ty2),
- video::S3DVertex(vx,vy2,+0.5, -1,0,0, c, tx,ty2),
- video::S3DVertex(vx,vy1,+0.5, -1,0,0, c, tx,ty1),
- };
- u16 indices[6] = {0,1,2,2,3,0};
- buf->append(vertices, 4, indices, 6);
- y = yy - 1;
- }
- }
- }
-
- // Add to mesh
- scene::SMesh *mesh = new scene::SMesh();
- mesh->addMeshBuffer(buf);
- buf->drop();
- scene::SAnimatedMesh *anim_mesh = new scene::SAnimatedMesh(mesh);
- mesh->drop();
- return anim_mesh;
-}
-
-scene::IAnimatedMesh* createExtrudedMesh(video::ITexture *texture,
- video::IVideoDriver *driver, v3f scale)
-{
- scene::IAnimatedMesh *mesh = NULL;
- core::dimension2d<u32> size = texture->getSize();
- video::ECOLOR_FORMAT format = texture->getColorFormat();
- if (format == video::ECF_A8R8G8B8)
- {
- // Texture is in the correct color format, we can pass it
- // to extrudeARGB right away.
- void *data = texture->lock(MY_ETLM_READ_ONLY);
- if (data == NULL)
- return NULL;
- mesh = extrudeARGB(size.Width, size.Height, (u8*) data);
- texture->unlock();
- }
- else
- {
- video::IImage *img1 = driver->createImageFromData(format, size, texture->lock(MY_ETLM_READ_ONLY));
- if (img1 == NULL)
- return NULL;
-
- // img1 is in the texture's color format, convert to 8-bit ARGB
- video::IImage *img2 = driver->createImage(video::ECF_A8R8G8B8, size);
- if (img2 != NULL)
- {
- img1->copyTo(img2);
- img1->drop();
-
- mesh = extrudeARGB(size.Width, size.Height, (u8*) img2->lock());
- img2->unlock();
- img2->drop();
- }
- img1->drop();
- }
-
- // Set default material
- mesh->getMeshBuffer(0)->getMaterial().setTexture(0, texture);
- mesh->getMeshBuffer(0)->getMaterial().setFlag(video::EMF_LIGHTING, false);
- mesh->getMeshBuffer(0)->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
- mesh->getMeshBuffer(0)->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
-
- scaleMesh(mesh, scale); // also recalculates bounding box
- return mesh;
-}
-
void scaleMesh(scene::IMesh *mesh, v3f scale)
{
if(mesh == NULL)
}
}
-video::ITexture *generateTextureFromMesh(scene::IMesh *mesh,
- IrrlichtDevice *device,
- core::dimension2d<u32> dim,
- std::string texture_name,
- v3f camera_position,
- v3f camera_lookat,
- core::CMatrix4<f32> camera_projection_matrix,
- video::SColorf ambient_light,
- v3f light_position,
- video::SColorf light_color,
- f32 light_radius)
-{
- video::IVideoDriver *driver = device->getVideoDriver();
- if(driver->queryFeature(video::EVDF_RENDER_TO_TARGET) == false)
+void rotateMeshBy6dFacedir(scene::IMesh *mesh, int facedir)
+{
+ int axisdir = facedir>>2;
+ facedir &= 0x03;
+
+ u16 mc = mesh->getMeshBufferCount();
+ for(u16 j = 0; j < mc; j++)
{
- errorstream<<"generateTextureFromMesh(): EVDF_RENDER_TO_TARGET"
- " not supported."<<std::endl;
- return NULL;
+ scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
+ video::S3DVertex *vertices = (video::S3DVertex*)buf->getVertices();
+ u16 vc = buf->getVertexCount();
+ for(u16 i=0; i<vc; i++)
+ {
+ switch (axisdir)
+ {
+ case 0:
+ if(facedir == 1)
+ vertices[i].Pos.rotateXZBy(-90);
+ else if(facedir == 2)
+ vertices[i].Pos.rotateXZBy(180);
+ else if(facedir == 3)
+ vertices[i].Pos.rotateXZBy(90);
+ break;
+ case 1: // z+
+ vertices[i].Pos.rotateYZBy(90);
+ if(facedir == 1)
+ vertices[i].Pos.rotateXYBy(90);
+ else if(facedir == 2)
+ vertices[i].Pos.rotateXYBy(180);
+ else if(facedir == 3)
+ vertices[i].Pos.rotateXYBy(-90);
+ break;
+ case 2: //z-
+ vertices[i].Pos.rotateYZBy(-90);
+ if(facedir == 1)
+ vertices[i].Pos.rotateXYBy(-90);
+ else if(facedir == 2)
+ vertices[i].Pos.rotateXYBy(180);
+ else if(facedir == 3)
+ vertices[i].Pos.rotateXYBy(90);
+ break;
+ case 3: //x+
+ vertices[i].Pos.rotateXYBy(-90);
+ if(facedir == 1)
+ vertices[i].Pos.rotateYZBy(90);
+ else if(facedir == 2)
+ vertices[i].Pos.rotateYZBy(180);
+ else if(facedir == 3)
+ vertices[i].Pos.rotateYZBy(-90);
+ break;
+ case 4: //x-
+ vertices[i].Pos.rotateXYBy(90);
+ if(facedir == 1)
+ vertices[i].Pos.rotateYZBy(-90);
+ else if(facedir == 2)
+ vertices[i].Pos.rotateYZBy(180);
+ else if(facedir == 3)
+ vertices[i].Pos.rotateYZBy(90);
+ break;
+ case 5:
+ vertices[i].Pos.rotateXYBy(-180);
+ if(facedir == 1)
+ vertices[i].Pos.rotateXZBy(90);
+ else if(facedir == 2)
+ vertices[i].Pos.rotateXZBy(180);
+ else if(facedir == 3)
+ vertices[i].Pos.rotateXZBy(-90);
+ break;
+ default:
+ break;
+ }
+ }
}
+}
- // Create render target texture
- video::ITexture *rtt = driver->addRenderTargetTexture(
- dim, texture_name.c_str(), video::ECF_A8R8G8B8);
- if(rtt == NULL)
+void recalculateBoundingBox(scene::IMesh *src_mesh)
+{
+ core::aabbox3d<f32> bbox;
+ bbox.reset(0,0,0);
+ for(u16 j = 0; j < src_mesh->getMeshBufferCount(); j++)
{
- errorstream<<"generateTextureFromMesh(): addRenderTargetTexture"
- " returned NULL."<<std::endl;
- return NULL;
+ scene::IMeshBuffer *buf = src_mesh->getMeshBuffer(j);
+ buf->recalculateBoundingBox();
+ if(j == 0)
+ bbox = buf->getBoundingBox();
+ else
+ bbox.addInternalBox(buf->getBoundingBox());
}
+ src_mesh->setBoundingBox(bbox);
+}
- // Set render target
- driver->setRenderTarget(rtt, true, true, video::SColor(0,0,0,0));
-
- // Get a scene manager
- scene::ISceneManager *smgr_main = device->getSceneManager();
- assert(smgr_main);
- scene::ISceneManager *smgr = smgr_main->createNewSceneManager();
- assert(smgr);
-
- scene::IMeshSceneNode* meshnode = smgr->addMeshSceneNode(mesh, NULL, -1, v3f(0,0,0), v3f(0,0,0), v3f(1,1,1), true);
- meshnode->setMaterialFlag(video::EMF_LIGHTING, true);
- meshnode->setMaterialFlag(video::EMF_ANTI_ALIASING, true);
- meshnode->setMaterialFlag(video::EMF_BILINEAR_FILTER, true);
+scene::IMesh* cloneMesh(scene::IMesh *src_mesh)
+{
+ scene::SMesh* dst_mesh = new scene::SMesh();
+ for(u16 j = 0; j < src_mesh->getMeshBufferCount(); j++)
+ {
+ scene::IMeshBuffer *buf = src_mesh->getMeshBuffer(j);
+ video::S3DVertex *vertices = (video::S3DVertex*)buf->getVertices();
+ u16 *indices = (u16*)buf->getIndices();
+ scene::SMeshBuffer *temp_buf = new scene::SMeshBuffer();
+ temp_buf->append(vertices, buf->getVertexCount(),
+ indices, buf->getIndexCount());
+ dst_mesh->addMeshBuffer(temp_buf);
+ temp_buf->drop();
+ }
+ return dst_mesh;
+}
- scene::ICameraSceneNode* camera = smgr->addCameraSceneNode(0,
- camera_position, camera_lookat);
- // second parameter of setProjectionMatrix (isOrthogonal) is ignored
- camera->setProjectionMatrix(camera_projection_matrix, false);
+scene::IMesh* convertNodeboxNodeToMesh(ContentFeatures *f)
+{
+ scene::SMesh* dst_mesh = new scene::SMesh();
+ for (u16 j = 0; j < 6; j++)
+ {
+ scene::IMeshBuffer *buf = new scene::SMeshBuffer();
+ buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
+ buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
+ dst_mesh->addMeshBuffer(buf);
+ buf->drop();
+ }
+
+ video::SColor c(255,255,255,255);
- smgr->setAmbientLight(ambient_light);
- smgr->addLightSceneNode(0, light_position, light_color, light_radius);
+ std::vector<aabb3f> boxes = f->node_box.fixed;
+
+ for(std::vector<aabb3f>::iterator
+ i = boxes.begin();
+ i != boxes.end(); i++)
+ {
+ aabb3f box = *i;
- // Render scene
- driver->beginScene(true, true, video::SColor(0,0,0,0));
- smgr->drawAll();
- driver->endScene();
+ f32 temp;
+ if (box.MinEdge.X > box.MaxEdge.X)
+ {
+ temp=box.MinEdge.X;
+ box.MinEdge.X=box.MaxEdge.X;
+ box.MaxEdge.X=temp;
+ }
+ if (box.MinEdge.Y > box.MaxEdge.Y)
+ {
+ temp=box.MinEdge.Y;
+ box.MinEdge.Y=box.MaxEdge.Y;
+ box.MaxEdge.Y=temp;
+ }
+ if (box.MinEdge.Z > box.MaxEdge.Z)
+ {
+ temp=box.MinEdge.Z;
+ box.MinEdge.Z=box.MaxEdge.Z;
+ box.MaxEdge.Z=temp;
+ }
+ // Compute texture coords
+ f32 tx1 = (box.MinEdge.X/BS)+0.5;
+ f32 ty1 = (box.MinEdge.Y/BS)+0.5;
+ f32 tz1 = (box.MinEdge.Z/BS)+0.5;
+ f32 tx2 = (box.MaxEdge.X/BS)+0.5;
+ f32 ty2 = (box.MaxEdge.Y/BS)+0.5;
+ f32 tz2 = (box.MaxEdge.Z/BS)+0.5;
+ f32 txc[24] = {
+ // up
+ tx1, 1-tz2, tx2, 1-tz1,
+ // down
+ tx1, tz1, tx2, tz2,
+ // right
+ tz1, 1-ty2, tz2, 1-ty1,
+ // left
+ 1-tz2, 1-ty2, 1-tz1, 1-ty1,
+ // back
+ 1-tx2, 1-ty2, 1-tx1, 1-ty1,
+ // front
+ tx1, 1-ty2, tx2, 1-ty1,
+ };
+ v3f min = box.MinEdge;
+ v3f max = box.MaxEdge;
- // NOTE: The scene nodes should not be dropped, otherwise
- // smgr->drop() segfaults
- /*cube->drop();
- camera->drop();
- light->drop();*/
- // Drop scene manager
- smgr->drop();
+ video::S3DVertex vertices[24] =
+ {
+ // up
+ video::S3DVertex(min.X,max.Y,max.Z, 0,1,0, c, txc[0],txc[1]),
+ video::S3DVertex(max.X,max.Y,max.Z, 0,1,0, c, txc[2],txc[1]),
+ video::S3DVertex(max.X,max.Y,min.Z, 0,1,0, c, txc[2],txc[3]),
+ video::S3DVertex(min.X,max.Y,min.Z, 0,1,0, c, txc[0],txc[3]),
+ // down
+ video::S3DVertex(min.X,min.Y,min.Z, 0,-1,0, c, txc[4],txc[5]),
+ video::S3DVertex(max.X,min.Y,min.Z, 0,-1,0, c, txc[6],txc[5]),
+ video::S3DVertex(max.X,min.Y,max.Z, 0,-1,0, c, txc[6],txc[7]),
+ video::S3DVertex(min.X,min.Y,max.Z, 0,-1,0, c, txc[4],txc[7]),
+ // right
+ video::S3DVertex(max.X,max.Y,min.Z, 1,0,0, c, txc[ 8],txc[9]),
+ video::S3DVertex(max.X,max.Y,max.Z, 1,0,0, c, txc[10],txc[9]),
+ video::S3DVertex(max.X,min.Y,max.Z, 1,0,0, c, txc[10],txc[11]),
+ video::S3DVertex(max.X,min.Y,min.Z, 1,0,0, c, txc[ 8],txc[11]),
+ // left
+ video::S3DVertex(min.X,max.Y,max.Z, -1,0,0, c, txc[12],txc[13]),
+ video::S3DVertex(min.X,max.Y,min.Z, -1,0,0, c, txc[14],txc[13]),
+ video::S3DVertex(min.X,min.Y,min.Z, -1,0,0, c, txc[14],txc[15]),
+ video::S3DVertex(min.X,min.Y,max.Z, -1,0,0, c, txc[12],txc[15]),
+ // back
+ video::S3DVertex(max.X,max.Y,max.Z, 0,0,1, c, txc[16],txc[17]),
+ video::S3DVertex(min.X,max.Y,max.Z, 0,0,1, c, txc[18],txc[17]),
+ video::S3DVertex(min.X,min.Y,max.Z, 0,0,1, c, txc[18],txc[19]),
+ video::S3DVertex(max.X,min.Y,max.Z, 0,0,1, c, txc[16],txc[19]),
+ // front
+ video::S3DVertex(min.X,max.Y,min.Z, 0,0,-1, c, txc[20],txc[21]),
+ video::S3DVertex(max.X,max.Y,min.Z, 0,0,-1, c, txc[22],txc[21]),
+ video::S3DVertex(max.X,min.Y,min.Z, 0,0,-1, c, txc[22],txc[23]),
+ video::S3DVertex(min.X,min.Y,min.Z, 0,0,-1, c, txc[20],txc[23]),
+ };
- // Unset render target
- driver->setRenderTarget(0, true, true, 0);
+ u16 indices[] = {0,1,2,2,3,0};
- return rtt;
+ for(u16 j = 0; j < 24; j += 4)
+ {
+ scene::IMeshBuffer *buf = dst_mesh->getMeshBuffer(j / 4);
+ buf->append(vertices + j, 4, indices, 6);
+ }
+ }
+ return dst_mesh;
}
projects / minetest.git / blobdiff