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Code Issues 123 Wiki Activity

continued refactoring: lines, terrain models; render culling optimizations and fixes

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This commit is contained in:
tmj-fstate
2017-10-17 19:49:14 +02:00
parent 630b9ecf1b
commit 87348a2ab8
25 changed files with 1062 additions and 244 deletions
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206
scenenode.cpp
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@@ -207,6 +207,65 @@ shape_node::deserialize( cParser &Input, scene::node_data const &Nodedata ) {
return *this;
}
// imports data from provided submodel
shape_node &
shape_node::convert( TSubModel const *Submodel ) {
m_name = Submodel->pName;
m_data.lighting.ambient = Submodel->f4Ambient;
m_data.lighting.diffuse = Submodel->f4Diffuse;
m_data.lighting.specular = Submodel->f4Specular;
m_data.material = Submodel->m_material;
m_data.translucent = ( true == GfxRenderer.Material( m_data.material ).has_alpha );
// NOTE: we set unlimited view range typical for terrain, because we don't expect to convert any other 3d models
m_data.rangesquared_max = std::numeric_limits<double>::max();
if( Submodel->m_geometry == null_handle ) { return *this; }
int vertexcount { 0 };
std::vector<world_vertex> importedvertices;
world_vertex vertex, vertex1, vertex2;
for( auto const &sourcevertex : GfxRenderer.Vertices( Submodel->m_geometry ) ) {
vertex.position = sourcevertex.position;
vertex.normal = sourcevertex.normal;
vertex.texture = sourcevertex.texture;
if( vertexcount == 0 ) { vertex1 = vertex; }
else if( vertexcount == 1 ) { vertex2 = vertex; }
else if( vertexcount >= 2 ) {
if( false == degenerate( vertex1.position, vertex2.position, vertex.position ) ) {
importedvertices.emplace_back( vertex1 );
importedvertices.emplace_back( vertex2 );
importedvertices.emplace_back( vertex );
}
// start a new triangle
vertexcount = -1;
}
++vertexcount;
}
if( true == importedvertices.empty() ) { return *this; }
// assign imported geometry to the node...
m_data.vertices.swap( importedvertices );
// ...and calculate center...
for( auto const &vertex : m_data.vertices ) {
m_data.area.center += vertex.position;
}
m_data.area.center /= m_data.vertices.size();
// ...and bounding area
double squareradius { 0.0 };
for( auto const &vertex : m_data.vertices ) {
squareradius = std::max(
squareradius,
glm::length2( vertex.position - m_data.area.center ) );
}
m_data.area.radius = std::max<float>(
m_data.area.radius,
std::sqrt( squareradius ) );
return *this;
}
// adds content of provided node to already enclosed geometry. returns: true if merge could be performed
bool
shape_node::merge( shape_node &Shape ) {
@@ -260,6 +319,151 @@ shape_node::compute_radius() {
}
// restores content of the node from provded input stream
lines_node &
lines_node::deserialize( cParser &Input, scene::node_data const &Nodedata ) {
// import common data
m_name = Nodedata.name;
m_data.rangesquared_min = Nodedata.range_min * Nodedata.range_min;
m_data.rangesquared_max = (
Nodedata.range_max >= 0.0 ?
Nodedata.range_max * Nodedata.range_max :
std::numeric_limits<double>::max() );
// material
Input.getTokens( 3, false );
Input
>> m_data.lighting.diffuse.r
>> m_data.lighting.diffuse.g
>> m_data.lighting.diffuse.b;
m_data.lighting.diffuse /= 255.f;
m_data.lighting.diffuse.a = 1.f;
Input.getTokens( 1, false );
Input
>> m_data.line_width;
m_data.line_width = std::min( 30.f, m_data.line_width ); // 30 pix equals rougly width of a signal pole viewed from ~1m away
// geometry
enum subtype {
lines,
line_strip,
line_loop
} const nodetype = (
Nodedata.type == "lines" ? lines :
Nodedata.type == "line_strip" ? line_strip :
line_loop );
std::size_t vertexcount { 0 };
world_vertex vertex, vertex0, vertex1;
std::string token = Input.getToken<std::string>();
do {
vertex.position.x = std::atof( token.c_str() );
Input.getTokens( 2, false );
Input
>> vertex.position.y
>> vertex.position.z;
// convert all data to gl_lines to allow data merge for matching nodes
switch( nodetype ) {
case lines: {
m_data.vertices.emplace_back( vertex );
break;
}
case line_strip: {
if( vertexcount > 0 ) {
m_data.vertices.emplace_back( vertex1 );
m_data.vertices.emplace_back( vertex );
}
vertex1 = vertex;
++vertexcount;
break;
}
case line_loop: {
if( vertexcount == 0 ) {
vertex0 = vertex;
vertex1 = vertex;
}
else {
m_data.vertices.emplace_back( vertex1 );
m_data.vertices.emplace_back( vertex );
}
vertex1 = vertex;
++vertexcount;
break;
}
default: { break; }
}
token = Input.getToken<std::string>();
} while( token != "endline" );
// add closing line for the loop
if( ( nodetype == line_loop )
&& ( vertexcount > 2 ) ) {
m_data.vertices.emplace_back( vertex1 );
m_data.vertices.emplace_back( vertex0 );
}
if( m_data.vertices.size() % 2 != 0 ) {
ErrorLog( "Lines node specified odd number of vertices, encountered in file \"" + Input.Name() + "\" (line " + std::to_string( Input.Line() - 1 ) + ")" );
m_data.vertices.pop_back();
}
return *this;
}
// adds content of provided node to already enclosed geometry. returns: true if merge could be performed
bool
lines_node::merge( lines_node &Lines ) {
if( ( m_data.line_width != Lines.m_data.line_width )
|| ( m_data.lighting != Lines.m_data.lighting ) ) {
// can't merge nodes with different appearance
return false;
}
// add geometry from provided node
m_data.area.center =
interpolate(
m_data.area.center, Lines.m_data.area.center,
static_cast<float>( Lines.m_data.vertices.size() ) / ( Lines.m_data.vertices.size() + m_data.vertices.size() ) );
m_data.vertices.insert(
std::end( m_data.vertices ),
std::begin( Lines.m_data.vertices ), std::end( Lines.m_data.vertices ) );
// NOTE: we could recalculate radius with something other than brute force, but it'll do
compute_radius();
return true;
}
// generates renderable version of held non-instanced geometry in specified geometry bank
void
lines_node::create_geometry( geometrybank_handle const &Bank ) {
vertex_array vertices; vertices.reserve( m_data.vertices.size() );
for( auto const &vertex : m_data.vertices ) {
vertices.emplace_back(
vertex.position - m_data.origin,
vertex.normal,
vertex.texture );
}
m_data.geometry = GfxRenderer.Insert( vertices, Bank, GL_LINES );
std::vector<world_vertex>().swap( m_data.vertices ); // hipster shrink_to_fit
}
// calculates node's bounding radius
void
lines_node::compute_radius() {
auto squaredradius { 0.0 };
for( auto const &vertex : m_data.vertices ) {
squaredradius = std::max(
squaredradius,
glm::length2( vertex.position - m_data.area.center ) );
}
m_data.area.radius = static_cast<float>( std::sqrt( squaredradius ) );
}
/*
memory_node &
memory_node::deserialize( cParser &Input, node_data const &Nodedata ) {
@@ -279,6 +483,8 @@ memory_node::deserialize( cParser &Input, node_data const &Nodedata ) {
*/
} // scene
namespace editor {
basic_node::basic_node( scene::node_data const &Nodedata ) :