engine.profiler Functions

WarningUnigineScript is deprecated and will be removed in future releases. Please consider using C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScipt is not guaranteed, as the current level of support assumes only fixing critical issues.

The Profiler class is used to create counters for the engine Performance Profiler. Allows using counters in your code in the following manner:

Source code (UnigineScript)

engine.profiler.begin("my_counter");
// ...code to profile...
engine.profiler.end();

Notice

Counters can be nested.

Usage Example#

The following example contains different approaches to creating counters:

Two counters are added via the setValue() function: one shows the number of dynamic mesh vertices, the other shows the update time. This approach should be used when you need to show, for example, a value of a setting, the number of objects, and so on.
Another two counters are added by using the begin()/end() construction. They shows the time spent for mesh grid modifying and the time spent for mesh normal vectors, tangent vectors and a mesh bounding box calculation. This approach should be used when you need to show time spent for executing a part of the code.

In the code below, a dynamic mesh is created and then modified on the engine update. All counters are created on update() too.

Source code (UnigineScript)

#include <core/unigine.h>

// declare variables
int size = 128;
ObjectMeshDynamic mesh;

int init() {
	
	// create a dynamic mesh and remove script ownership
	mesh = new ObjectMeshDynamic(OBJECT_DYNAMIC_VERTEX | OBJECT_IMMUTABLE_INDICES);

	// set the mesh settings
	mesh.setWorldTransform(translate(Vec3(0.0f,0.0f,2.0f)));
	mesh.setMaterial("mesh_base","*");
	
	// create dynamic mesh vertices
	for(int y = 0; y < size; y++) {
		for(int x = 0; x < size; x++) {
			mesh.addVertex(vec3_zero);
			mesh.addTexCoord(vec4(float(x) / size,float(y) / size,0.0f,0.0f));
		}
	}
	
	// create dynamic mesh indices
	for(int y = 0; y < size - 1; y++) {
		int offset = size * y;
		for(int x = 0; x < size - 1; x++) {
			mesh.addIndex(offset);
			mesh.addIndex(offset + 1);
			mesh.addIndex(offset + size);
			mesh.addIndex(offset + size);
			mesh.addIndex(offset + 1);
			mesh.addIndex(offset + size + 1);
			offset++;
		}
	}
	
	return 1;
}

int update() {
	
	// add a counter that shows the number of dynamic mesh vertices
	engine.profiler.setValue("Num Vertices", "", mesh.getNumVertex());
	// add a counter that shows engine update phase duration
	engine.profiler.setValue("Update time", "ms", engine.getUpdateTime(),1.0f,vec4(1.0f));

	float time = engine.game.getTime();
	float isize = 30.0f / size;
	// start the counter that shows the time spent for dymanic mesh grid modifying
	engine.profiler.begin("grid",vec4(1.0f));
	forloop(int y = 0, i = 0; size) {
		float Y = y * isize - 15.0f;
		float Z = cos(Y + time);
		forloop(int x = 0; size) {
			float X = x * isize - 15.0f;
			mesh.setVertex(i++,vec3(X,Y,Z * sin(X + time)));
		}
	}
	// stop the counter
	engine.profiler.end();
	
	// start the counter that shows the time spent for
	// dynamic mesh normal vectors, tangent vectors and a mesh bounding box calculation
	engine.profiler.begin("mesh");
	mesh.updateBounds();
	mesh.updateTangents();
	mesh.flushVertex();
	// stop the counter
	engine.profiler.end();
	
	return 1;
}

Methods:

Name	Description View: Sort by:
setEnabled	Enables or disables the profiler.
isEnabled	Returns a value indicating if the profiler is enabled.
getGui	Returns a pointer to the GUI of the engine Performance Profiler.
setGui	Sets the GUI for the engine Performance Profiler.
getValue	Returns a value of the specified counter.
begin	Starts a counter with a given name and shows a colored graph (if the show_profiler 2 console variable is set).
end	Stops the last activated counter and returns its value.
getMicroprofileUrl	Returns the microprofile web server url.
beginMicro	Starts a counter with a given name in the Microprofile only, without overloading the Performance Profiler layout.
endMicro	Stops a previously activated Microprofile counter with the specified ID.

Profiler Class

Members

void engine.profiler.setEnabled ( int enabled ) #

Enables or disables the profiler.

Arguments

int enabled - 1 to enable the profiler, 0 to disable it.

int engine.profiler.isEnabled ( ) #

Returns a value indicating if the profiler is enabled.

Return value

1 if the profiler is enabled; otherwise, 0.

float engine.profiler.getValue ( string name ) #

Returns a value of the specified counter.

Arguments

string name - The name of the counter.

Return value

Value of the counter in milliseconds.

void engine.profiler.begin ( string name, vec4 color ) #

Starts a counter with a given name and shows a colored graph (if the show_profiler 2 console variable is set). The counter shows user how many millisecods have been spent for the operation that is performed between the engine.profiler.begin() and the engine.profiler.end() functions.

Source code (UnigineScript)

int size = 128;
ObjectMeshDynamic mesh;
// ... 
float time = engine.game.getTime();
// start the counter that shows the time spent for dymanic mesh grid calculation
engine.profiler.begin("grid",vec4(1.0f));
// modify a mesh grid
forloop(int y = 0, i = 0; size) {
	float Y = y * isize - 15.0f;
	float Z = cos(Y + time);
	forloop(int x = 0; size) {
		float X = x * isize - 15.0f;
		mesh.setVertex(i++,vec3(X,Y,Z * sin(X + time)));
	}
}
// stop the counter
engine.profiler.end();

Arguments

string name - Name of the counter.
vec4 color - Color of the graph.

void engine.profiler.begin ( string name ) #

Starts a counter with a given name. The counter shows user how many millisecods have been spent for the operation that is performed between the engine.profiler.begin() and the engine.profiler.end() functions.

Source code (UnigineScript)

ObjectMeshDynamic mesh;
// ...
// start the counter that shows the time spent for 
// dynamic mesh normal vectors, tangent vectors and a mesh bounding box calculation
engine.profiler.begin("mesh");
mesh.updateBounds();
mesh.updateTangents();
mesh.flushVertex();
// stop the counter
engine.profiler.end();

Arguments

string name - Name of the counter.

float engine.profiler.end ( ) #

Stops the last activated counter and returns its value.

Return value

Value of the counter in milliseconds.

string engine.profiler.getMicroprofileUrl ( ) #

Returns the microprofile web server url.

Return value

Microprofile web server url represented in the following way:

http://localhost:p/, where p is the local port.

Gui engine.profiler.getGui ( ) #

Returns a pointer to the GUI of the engine Performance Profiler.

Return value

Pointer to the GUI.

void engine.profiler.setGui ( Gui gui ) #

Sets the GUI for the engine Performance Profiler.

Arguments

Gui gui - A pointer to the GUI class instance.

int engine.profiler.beginMicro ( string name, int gpu = 0 ) #

Starts a counter with a given name in the Microprofile only, without overloading the Performance Profiler layout. The counter shows user how many millisecods have been spent for the operation that is performed between the engine.profiler.beginMicro() and the engine.profiler.endMicro() functions.

Notice

Each counter has an ID. Thus, several nested beginMicro() / endMicro() blocks can be created, which can't be done in the Performance Profiler.

Source code (UnigineScript)

ObjectMeshDynamic mesh;
// ...
// start the counter that shows the time spent for 
// dynamic mesh normal vectors, tangent vectors and a mesh bounding box calculation, with a nested counter for tangent vectors only
int c_id = engine.profiler.beginMicro("mesh");
mesh.updateBounds();
int c_nested_id = engine.profiler.beginMicro("mesh_tangents");
mesh.updateTangents();
engine.profiler.endMicro(c_nested_id);
mesh.flushVertex();
// stop the counter
engine.profiler.endMicro(c_id);

Arguments

string name - Name of the counter.
int gpu - Use 1 for a GPU counter, or 0 - for a CPU one. The default value is 0.

Return value

ID of the new added counter.

void engine.profiler.endMicro ( int id ) #

Stops a previously activated Microprofile counter with the specified ID.

Arguments

int id - Microoprofile counter ID.

Last update: 2020-04-10

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