3DCoat Core API
The 3DCoat API documentation.
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meshes.cpp

Generate the voxel figure that consists of random spheres

// Generate the voxel figure that consists of random spheres
#include <CoreAPI.h>
//@config: Debug
class SpheresGenerator:public BaseClass {
public:
SpheresGenerator() {
numSpheres = 200;
FigureRadius = 30;
FigureRadiusVariation = 0.1;
SpheresRadius = 10;
SpheresRadiusVariation = 0.5;
}
int numSpheres;
float FigureRadius;
float FigureRadiusVariation;
float SpheresRadius;
float SpheresRadiusVariation;
// this is class registration, look dialogs example
SERIALIZE() {
SLIDER(numSpheres, "numSpheres", 1, 1000);
FSLIDER(FigureRadius, "FigureRadius", 1, 100, 1, false);
FSLIDER(FigureRadiusVariation, "FigureRadiusVariation", 0, 1, 100, false);
FSLIDER(SpheresRadius, "SpheresRadius", 1, 100, 1, false);
FSLIDER(SpheresRadiusVariation, "SpheresRadiusVariation", 0, 1, 100, false);
}
// generate random value with variation
float random(float value, float variation) {
return value * (1.0f + variation * rand() / 32768.0f);
}
// generate the random spheres
void generate() {
// load the sphere mesh
m.Read("data/Samples/Sphere.obj");
// add new volume
auto current = coat::Scene::sculptRoot().addChild("Random spheres:" + coat::str::ToString(numSpheres));
auto volume = current.Volume();
// turn to voxels
volume.toVoxels();
for (int i = 0; i < numSpheres; i++) {
// create transformation matrix.
// scaling to the sphere radius
coat::mat4 transform = coat::mat4::Scaling(random(SpheresRadius, SpheresRadiusVariation));
// translate using the random vector
transform *= coat::mat4::Translation(coat::vec3::RandNormal() * random(FigureRadius, FigureRadiusVariation));
// merge into scene
volume.mergeMesh(m, transform, coat::BOOL_ADD);
// show progress bar
coat::io::progressBarInWindowHeader(i, numSpheres - 1, "Merging spheres...");
}
}
};
EXPORT
int main() {
// get to sculpt room
coat::ui::toRoom("Sculpt");
// create the generator object
SpheresGenerator sg;
// load generator settings if exist
sg.ReadFromFile("data/Temp/Spheres.json");
if(dlg.ok().cancel().params(&sg).show() == 1) {// ok pressed, buttons start from 1
// save settings
sg.WriteToFile("data/Temp/Spheres.json");
// generate the figure
sg.generate();
};
return 0;
}
Use this class for build a class for UI or serialization. see class_reg.h for details about the class...
Definition BaseClass.h:91
The mesh reference.
Definition CoreAPI.h:412
bool Read(const char *name)
Load the mesh from the file.
SceneElement addChild(const char *name) const
add the child element of the same nature
static SceneElement sculptRoot()
get the root of all sculpt objects
the rich dialog. You may customize it, show your custom parameters and custom buttons.
Definition CoreAPI.h:3732
dialog & params(BaseClass *params)
The important core feature. BaseClass allows to create the custom controls in the dialog....
dialog & ok()
add Ok button
dialog & cancel()
add Cancel button
int show()
Show the dialog. This is usually the last command in the chain.
static void step(int count=1)
perform rendering cycles
static void progressBarInWindowHeader(float stage, float max_stage, const char *message)
Show the progress bar only in the 3DCoat's window header.
static void toRoom(const char *name, bool Force=false)
switch to the room
@ BOOL_ADD
boolean add
Definition CoreAPI.h:91
comms::cMat4 mat4
4x4 float matrix, see the cMat4
Definition CoreAPI.h:59