void Chunk::addCube(Batch& batch, uint8_t x, uint8_t y, uint8_t z)
{
std::vector<glm::vec3> vertices(6 * 6);
std::vector<glm::vec2> texCoords(6 * 6);
glm::vec3 v0(x, y, z);
glm::vec3 v1(x, y + 1.0f, z);
glm::vec3 v2(x + 1.0f, y, z);
glm::vec3 v3(x + 1.0f, y + 1.0f, z);
glm::vec3 v4(x, y + 1.0f, z + 1.0f);
glm::vec3 v5(x, y, z + 1.0f);
glm::vec3 v6(x + 1.0f, y, z + 1.0f);
glm::vec3 v7(x + 1.0f, y + 1.0f, z + 1.0f);
glm::vec2 t0(0.0f, 0.0f);
glm::vec2 t1(0.0f, 1.0f);
glm::vec2 t2(1.0f, 0.0f);
glm::vec2 t3(1.0f, 1.0f);
// Front Face
vertices.push_back(v1); vertices.push_back(v0); vertices.push_back(v2);
texCoords.push_back(t1); texCoords.push_back(t0); texCoords.push_back(t2);
vertices.push_back(v2); vertices.push_back(v3); vertices.push_back(v1);
texCoords.push_back(t2); texCoords.push_back(t3); texCoords.push_back(t1);
// Right Face
vertices.push_back(v3); vertices.push_back(v2); vertices.push_back(v6);
texCoords.push_back(t1); texCoords.push_back(t0); texCoords.push_back(t2);
vertices.push_back(v6); vertices.push_back(v7); vertices.push_back(v3);
texCoords.push_back(t2); texCoords.push_back(t3); texCoords.push_back(t1);
// Back Face
vertices.push_back(v7); vertices.push_back(v6); vertices.push_back(v5);
texCoords.push_back(t1); texCoords.push_back(t0); texCoords.push_back(t2);
vertices.push_back(v5); vertices.push_back(v4); vertices.push_back(v7);
texCoords.push_back(t2); texCoords.push_back(t3); texCoords.push_back(t1);
// Left Face
vertices.push_back(v4); vertices.push_back(v5); vertices.push_back(v0);
texCoords.push_back(t1); texCoords.push_back(t0); texCoords.push_back(t2);
vertices.push_back(v0); vertices.push_back(v1); vertices.push_back(v4);
texCoords.push_back(t2); texCoords.push_back(t3); texCoords.push_back(t1);
// Top Face
vertices.push_back(v4); vertices.push_back(v1); vertices.push_back(v3);
texCoords.push_back(t1); texCoords.push_back(t0); texCoords.push_back(t2);
vertices.push_back(v3); vertices.push_back(v7); vertices.push_back(v4);
texCoords.push_back(t2); texCoords.push_back(t3); texCoords.push_back(t1);
// Bottom Face
vertices.push_back(v0); vertices.push_back(v5); vertices.push_back(v6);
texCoords.push_back(t1); texCoords.push_back(t0); texCoords.push_back(t2);
vertices.push_back(v6); vertices.push_back(v2); vertices.push_back(v0);
texCoords.push_back(t2); texCoords.push_back(t3); texCoords.push_back(t1);
batch.vertices(vertices);
batch.textures(texCoords);
}
void Tesselator::addContour(const std::vector<TVec3d>& pts, std::vector<std::vector<TVec2f> > textureCoordinatesLists )
{
unsigned int len = pts.size();
if ( len < 3 ) return;
for (size_t i = 0; i < textureCoordinatesLists.size(); i++) {
std::vector<TVec2f>& texCoords = textureCoordinatesLists.at(i);
if (texCoords.size() != pts.size()) {
if (!texCoords.empty()) {
CITYGML_LOG_ERROR(_logger, "Invalid call to 'addContour'. The number of texture coordinates in list " << i << " (" << texCoords.size() << ") "
"does not match the number of vertices (" << pts.size() << "). The texture coordinates list will be resized which may cause invalid texture coordinates.");
}
texCoords.resize(pts.size(), TVec2f(0.f, 0.f));
}
}
for (size_t i = 0; i < std::max(_texCoordsLists.size(), textureCoordinatesLists.size()); i++) {
if (i >= _texCoordsLists.size()) {
std::vector<TVec2f> texCoords(_vertices.size(), TVec2f(0.f, 0.f));
texCoords.insert(texCoords.end(), textureCoordinatesLists.at(i).begin(), textureCoordinatesLists.at(i).end());
_texCoordsLists.push_back(texCoords);
} else if (i >= textureCoordinatesLists.size()) {
_texCoordsLists.at(i).resize(_texCoordsLists.at(i).size() + pts.size(), TVec2f(0.f, 0.f));
} else {
_texCoordsLists.at(i).insert(_texCoordsLists.at(i).end(), textureCoordinatesLists.at(i).begin(), textureCoordinatesLists.at(i).end());
}
}
unsigned int pos = _vertices.size();
gluTessBeginContour( _tobj );
for ( unsigned int i = 0; i < len; i++ )
{
_vertices.push_back( pts[i] );
_indices.push_back(pos + i);
gluTessVertex( _tobj, &(_vertices.back()[0]), &_indices.back() );
}
gluTessEndContour( _tobj );
#ifndef NDEBUG
for (size_t i = 0; i < _texCoordsLists.size(); i++) {
assert(_texCoordsLists.at(i).size() == _vertices.size());
}
#endif
}
//--------------------------------------------------------------------------------
rectangle::rectangle(vec2 size, vec3 position)
: m_coords(vec2(), vec2())
{
m_size = size;
m_position = position;
m_color = vec4(.9f,.9f,.9f,1);
m_buffer.reset(new bufferObject(GL_ARRAY_BUFFER));
m_coords = texCoords(vec2(0,1), vec2(1,0));
m_vertices.reset(new vertex[4]);
setup();
buffer();
}
osg::ref_ptr<osg::Drawable> myQuad ()
{
osg::ref_ptr<osg::Geode> geode (new osg::Geode());
osg::ref_ptr<osg::Geometry> geometry (new osg::Geometry());
osg::ref_ptr<osg::Vec3Array> vertices (new osg::Vec3Array());
vertices->push_back (osg::Vec3 ( 1.0, 0.0, 0.0));
vertices->push_back (osg::Vec3 ( 1.0, 0.0, 1.0));
vertices->push_back (osg::Vec3 ( 0.0, 0.0, 1.0));
vertices->push_back (osg::Vec3 (0.0, 0.0, 0.0));
geometry->setVertexArray (vertices.get());
// All vertices are white this time (it's hard to see that we have two
// textures with all the colors...)
osg::ref_ptr<osg::Vec4Array> colors (new osg::Vec4Array());
colors->push_back (osg::Vec4 (1.0f, 1.0f, 1.0f, 1.0f));
geometry->setColorArray (colors.get());
geometry->setColorBinding (osg::Geometry::BIND_OVERALL);
osg::ref_ptr<osg::Vec3Array> normals (new osg::Vec3Array());
normals->push_back (osg::Vec3 (0.0f, -1.0f, 0.0f));
geometry->setNormalArray (normals.get());
geometry->setNormalBinding (osg::Geometry::BIND_OVERALL);
osg::ref_ptr<osg::Vec2Array> texCoords (new osg::Vec2Array());
texCoords->push_back (osg::Vec2 (0.0, 0.0));
texCoords->push_back (osg::Vec2 (0.0, 1.0));
texCoords->push_back (osg::Vec2 (1.0, 1.0));
texCoords->push_back (osg::Vec2 (1.0, 0.0));
// Here, the two texture units (0 and 1) share the same texture coordinates.
geometry->setTexCoordArray (0, texCoords.get());
geometry->setTexCoordArray (1, texCoords.get());
// Back to the usual: setup a primitive set and add the geometry to the geode.
geometry->addPrimitiveSet(
new osg::DrawArrays (osg::PrimitiveSet::QUADS, // how to render?
0, // index of first vertex
vertices->size())); // how many vertices?
// geode->addDrawable (geometry.get());
return geometry.get();
}
TriMesh<FloatType> Shapes<FloatType>::quad(const vec3<FloatType> &p0, const vec3<FloatType> &p1, const vec3<FloatType> &p2, const vec3<FloatType> &p3, const vec4<FloatType>& color)
{
std::vector<vec3<FloatType>> vertices = { p0, p1, p2, p3 };
std::vector<UINT> indices = { 0, 1, 2, 0, 2, 3 };
std::vector<vec3<FloatType>> normals = { ((p1 - p0) ^ (p3 - p0)).getNormalized(),
((p0 - p1) ^ (p2 - p1)).getNormalized(),
((p1 - p2) ^ (p3 - p2)).getNormalized(),
((p0 - p3) ^ (p2 - p3)).getNormalized() };
std::vector<vec2<FloatType>> texCoords(4);
std::vector<vec4<FloatType>> colors = { color, color, color, color };
texCoords[0] = vec2<FloatType>(1.0f, 1.0f);
texCoords[1] = vec2<FloatType>(0.0f, 1.0f);
texCoords[2] = vec2<FloatType>(0.0f, 0.0f);
texCoords[3] = vec2<FloatType>(1.0f, 0.0f);
return TriMesh<FloatType>(vertices.size(), indices.size(), vertices.data(), indices.data(),
colors.data(), normals.data(), texCoords.data());
}
void Layer::drawWithOpenGL(
const sp<const DisplayDevice>& hw, const Region& clip) const {
const uint32_t fbHeight = hw->getHeight();
const State& s(getDrawingState());
computeGeometry(hw, mMesh);
/*
* NOTE: the way we compute the texture coordinates here produces
* different results than when we take the HWC path -- in the later case
* the "source crop" is rounded to texel boundaries.
* This can produce significantly different results when the texture
* is scaled by a large amount.
*
* The GL code below is more logical (imho), and the difference with
* HWC is due to a limitation of the HWC API to integers -- a question
* is suspend is whether we should ignore this problem or revert to
* GL composition when a buffer scaling is applied (maybe with some
* minimal value)? Or, we could make GL behave like HWC -- but this feel
* like more of a hack.
*/
const Rect win(computeBounds());
float left = float(win.left) / float(s.active.w);
float top = float(win.top) / float(s.active.h);
float right = float(win.right) / float(s.active.w);
float bottom = float(win.bottom) / float(s.active.h);
// TODO: we probably want to generate the texture coords with the mesh
// here we assume that we only have 4 vertices
Mesh::VertexArray<vec2> texCoords(mMesh.getTexCoordArray<vec2>());
texCoords[0] = vec2(left, 1.0f - top);
texCoords[1] = vec2(left, 1.0f - bottom);
texCoords[2] = vec2(right, 1.0f - bottom);
texCoords[3] = vec2(right, 1.0f - top);
RenderEngine& engine(mFlinger->getRenderEngine());
engine.setDither(needsDithering());
engine.setupLayerBlending(mPremultipliedAlpha, isOpaque(), s.alpha);
engine.drawMesh(mMesh);
engine.disableBlending();
}
TriMesh<FloatType> Shapes<FloatType>::rectangleZ(const vec2<FloatType> &start, const vec2<FloatType> &end, FloatType zValue, const vec4<FloatType>& color)
{
std::vector<vec3<FloatType>> vertices(4);
std::vector<UINT> indices = { 0, 1, 2, 0, 2, 3 };
std::vector<vec3<FloatType>> normals(4, vec3f::eZ);
std::vector<vec2<FloatType>> texCoords(4);
std::vector<vec4<FloatType>> colors = { color, color, color, color };
vertices[0] = vec3<FloatType>(start.x, start.y, zValue);
vertices[1] = vec3<FloatType>(end.x, start.y, zValue);
vertices[2] = vec3<FloatType>(end.x, end.y, zValue);
vertices[3] = vec3<FloatType>(start.x, end.y, zValue);
texCoords[0] = vec2<FloatType>(0.0f, 0.0f);
texCoords[1] = vec2<FloatType>(1.0f, 0.0f);
texCoords[2] = vec2<FloatType>(1.0f, 1.0f);
texCoords[3] = vec2<FloatType>(0.0f, 1.0f);
return TriMesh<FloatType>(vertices.size(), indices.size(), vertices.data(), indices.data(),
colors.data(), normals.data(), texCoords.data());
}
void Layer::drawProtectedImage(const sp<const DisplayDevice>& hw, const Region& clip) const
{
const State& s(getDrawingState());
const Transform tr(hw->getTransform() * s.transform);
const uint32_t hw_h = hw->getHeight();
Rect win(s.active.w, s.active.h);
if (!s.active.crop.isEmpty()) {
win.intersect(s.active.crop, &win);
}
int w = win.getWidth();
int h = win.getHeight();
if (w > h) {
win.left += ((w - h) / 2);
win.right = win.left + h;
} else {
win.top += ((h - w) / 2);
win.bottom = win.top + w;
}
Mesh::VertexArray<vec2> position(mMesh.getPositionArray<vec2>());
position[0] = tr.transform(win.left, win.top);
position[1] = tr.transform(win.left, win.bottom);
position[2] = tr.transform(win.right, win.bottom);
position[3] = tr.transform(win.right, win.top);
for (size_t i=0 ; i<4 ; i++) {
position[i].y = hw_h - position[i].y;
}
Mesh::VertexArray<vec2> texCoords(mMesh.getTexCoordArray<vec2>());
texCoords[0] = vec2(0, 0);
texCoords[1] = vec2(0, 1);
texCoords[2] = vec2(1, 1);
texCoords[3] = vec2(1, 0);
RenderEngine& engine(mFlinger->getRenderEngine());
engine.setupLayerProtectedImage();
engine.drawMesh(mMesh);
engine.disableBlending();
}
void initScene()
{
// generate texture
texture = std::unique_ptr<Texture>(new Texture());
texture->genImageMask(16, 16, false);
// setup scene
viewTransform.SetPosition({ 0, 0, -3 });
//addModelPlane(); // reference model to check that UV-coords are correct
addModelCuboid();
addModelEllipsoid();
addModelCone();
addModelCylinder();
addModelPipe();
addModelTorus();
addModelSpiral();
addModelTorusKnot();
//addModelCurve();
//addModelBezierPatch();
//addModelTeapot();
//...
for (auto it = models.begin(); it != models.end();)
{
#ifdef ENABLE_PRESENTATION
// setup model for presentation
it->turn(0, Gs::Deg2Rad(20.0f));
it->turn(Gs::Deg2Rad(40.0f), 0);
#endif
// check for unused vertices in all models
auto n = countUnusedVertices(it->mesh);
if (n > 0)
std::cout << it->name << " has " << n << " unused vertices" << std::endl;
else if (n < 0)
{
std::cout << it->name << " has " << (-n) << " invalid vertices -> model removed from list" << std::endl;
it = models.erase(it);
continue;
}
// compute tangent vectors
const auto& verts = it->mesh.vertices;
auto numVerts = verts.size();
it->tangents[0].resize(numVerts);
it->tangents[1].resize(numVerts);
Gs::Vector3 tangent, bitangent, normal;
for (const auto& indices : it->mesh.triangles)
{
Gm::Triangle3 coords(
verts[indices.a].position,
verts[indices.b].position,
verts[indices.c].position
);
Gm::Triangle2 texCoords(
verts[indices.a].texCoord,
verts[indices.b].texCoord,
verts[indices.c].texCoord
);
Gm::ComputeTangentSpace(coords, texCoords, tangent, bitangent, normal);
(it->tangents[0])[indices.a] = tangent;
(it->tangents[1])[indices.a] = bitangent;
(it->tangents[0])[indices.b] = tangent;
(it->tangents[1])[indices.b] = bitangent;
(it->tangents[0])[indices.c] = tangent;
(it->tangents[1])[indices.c] = bitangent;
}
#ifdef WRITE_MODELS_TO_FILE
// write model to file
it->writeObjFile("mesh/" + it->name + ".obj");
#endif
++it;
}
// show first model
std::cout << std::endl;
showModel(models.size() - 1);
}
// Called by Rocket when it wants to compile geometry it believes will be
// static for the forseeable future.
Rocket::Core::CompiledGeometryHandle RocketRenderInterface::CompileGeometry(
Rocket::Core::Vertex* vertices, int num_vertices, int* indices,
int num_indices, Rocket::Core::TextureHandle texture) {
//For now don't compile anything
//return (Rocket::Core::CompiledGeometryHandle) NULL;
unsigned int handle = (unsigned int)_vao.size()+1;
unsigned int new_vao, new_ibo, new_vbo;
std::vector<unsigned int> ind(num_indices);
std::vector<float> verts(num_vertices*2);
std::vector<float> colors(num_vertices*4);
std::vector<float> texCoords(num_vertices*2);
for(int i = 0; i < num_indices; i++) {
ind[i] = static_cast<unsigned int>(indices[i]);
}
for(int i = 0; i < num_vertices; i++) {
int vidx = 2*i;
verts[vidx] = vertices[i].position.x;
verts[vidx + 1] = vertices[i].position.y;
int cidx = 4*i;
colors[cidx + 0] = vertices[i].colour.red/255.0f;
colors[cidx + 1] = vertices[i].colour.green/255.0f;
colors[cidx + 2] = vertices[i].colour.blue/255.0f;
colors[cidx + 3] = vertices[i].colour.alpha/255.0f;
texCoords[vidx] = vertices[i].tex_coord.x;
texCoords[vidx + 1] = vertices[i].tex_coord.y;
}
glGenVertexArrays(1, &new_vao);
glBindVertexArray(new_vao);
GetGLError();
glGenBuffers(1, &new_ibo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, new_ibo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER,
sizeof(unsigned int)*ind.size(),&ind[0], GL_STATIC_DRAW);
GetGLError();
glGenBuffers(1, &new_vbo);
glBindBuffer(GL_ARRAY_BUFFER, new_vbo);
glBufferData(GL_ARRAY_BUFFER,
(verts.size()+colors.size()+texCoords.size())*sizeof(float), NULL,
GL_STATIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*verts.size(), &verts[0]);
glBufferSubData(GL_ARRAY_BUFFER, sizeof(float)*verts.size(),
sizeof(float)*colors.size(), &colors[0]);
GetGLError();
if(texture > 0) {
// Load in the textured gui shader
glBufferSubData(GL_ARRAY_BUFFER,
sizeof(float)*(verts.size()+colors.size()),
sizeof(float)*texCoords.size(), &texCoords[0]);
GetGLError();
setVertexAttribPointerF(Vertex::LocationSlot::POSITION, 2, GL_FLOAT,
GL_FALSE, 0, BUFFER_OFFSET(0));
setVertexAttribPointerF(Vertex::LocationSlot::COLOR, 4, GL_FLOAT,
GL_FALSE, 0, BUFFER_OFFSET(sizeof(float)*verts.size()));
setVertexAttribPointerF(Vertex::LocationSlot::UV, 2, GL_FLOAT,
GL_FALSE, 0,
BUFFER_OFFSET(sizeof(float)*(verts.size()+colors.size())));
_shader_types.push_back(RS_T_WITH_TEXTURE);
} else {
_shader_types.push_back(RS_T_NO_TEXTURE);
setVertexAttribPointerF(Vertex::LocationSlot::POSITION, 2, GL_FLOAT,
GL_FALSE, 0, BUFFER_OFFSET(0));
setVertexAttribPointerF(Vertex::LocationSlot::COLOR, 4, GL_FLOAT,
GL_FALSE, 0, BUFFER_OFFSET(sizeof(float)*verts.size()));
}
// Now store away the indices to the geometry objects
_vao.push_back(new_vao);
_ibo.push_back(new_ibo);
_vbo.push_back(new_vbo);
_index_size.push_back((unsigned int)ind.size());
_tex_id.push_back(static_cast<unsigned int>(texture));
// Unbind the VAO just in case anyone makes changes to it.
glBindVertexArray(0);
// std::cout << "Compiled libRocket geometry " << new_ibo << " "
// << new_vbo << " " << new_vao << std::endl;
return handle;
}
osg::ref_ptr<osg::Node> get(const ImageVec_t& images)
{
osg::ref_ptr<osg::Group> rv( new osg::Group() );
for ( const auto& image : images )
{
// here we create a quad that will be texture mapped with the image
osg::ref_ptr<osg::Vec3Array> quad( new osg::Vec3Array() );
quad->push_back( image.corners[0] );
quad->push_back( image.corners[1] );
quad->push_back( image.corners[2] );
quad->push_back( image.corners[3] );
osg::ref_ptr<osg::Geometry> geo( new osg::Geometry() );
geo->setVertexArray( quad );
// here we create a drawing elelment to draw on
osg::ref_ptr<osg::DrawElementsUInt>
primitiveSet( new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0) );
primitiveSet->push_back( 0 );
primitiveSet->push_back( 1 );
primitiveSet->push_back( 2 );
primitiveSet->push_back( 3 );
geo->addPrimitiveSet( primitiveSet );
// the texture mappings
osg::ref_ptr<osg::Vec2Array> texCoords( new osg::Vec2Array(4) );
(*texCoords)[3].set( 0.0f, 0.0f );
(*texCoords)[2].set( 1.0f, 0.0f );
(*texCoords)[1].set( 1.0f, 1.0f );
(*texCoords)[0].set( 0.0f, 1.0f );
geo->setTexCoordArray( 0, texCoords );
// now create the goede to hold our created geometry
osg::ref_ptr<osg::Geode> geode( new osg::Geode() );
geode->addDrawable( geo );
// create the texture for the image
osg::ref_ptr<osg::Texture2D> texture( new osg::Texture2D() );
texture->setResizeNonPowerOfTwoHint(false);
texture->setDataVariance(osg::Object::STATIC);
texture->setImage( image.image );
texture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::NEAREST);
texture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::NEAREST);
// put this in decal mode
osg::ref_ptr<osg::TexEnv> decalTexEnv( new osg::TexEnv() );
decalTexEnv->setMode(osg::TexEnv::DECAL);
// set the state set, lighting and such, so we actually display the image
osg::ref_ptr<osg::StateSet> stateSet( geode->getOrCreateStateSet() );
stateSet->setTextureAttributeAndModes(0, texture, osg::StateAttribute::ON);
stateSet->setTextureAttribute(0, decalTexEnv);
stateSet->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
geo->setStateSet(stateSet);
// turn off any color binding - we want to use the texture
geo->setColorBinding(osg::Geometry::BIND_OFF);
// add this image and continue
rv->addChild(geode);
}
return rv;
};