Unigine::Profiler Class

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 show 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.

AppWorldLogic.h contains declaration of the required variables.

Source code (C++)

#include <UnigineLogic.h>
#include <UnigineStreams.h>
#include <UnigineObjects.h>

class AppWorldLogic: public Unigine::WorldLogic
{

public:
	AppWorldLogic();
	virtual ~AppWorldLogic();

	int init() override;

	int update() override;
	int postUpdate() override;
	int updatePhysics() override;

	int shutdown() override;

	int save(const Unigine::StreamPtr &stream) override;
	int restore(const Unigine::StreamPtr &stream) override;

private:
	// declare variables
	int size = 128;
	Unigine::ObjectMeshDynamicPtr mesh;
};

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

Source code (C++)

#include "AppWorldLogic.h"
#include <UnigineProfiler.h>
#include <UnigineEditor.h>
#include <UnigineGame.h>

using namespace Unigine;

int AppWorldLogic::init()
{
	// create a dynamic mesh
	mesh = ObjectMeshDynamic::create(ObjectMeshDynamic::USAGE_DYNAMIC_VERTEX | ObjectMeshDynamic::USAGE_IMMUTABLE_INDICES);
	// set the mesh settings
	mesh->setWorldTransform(Math::translate(Math::Vec3(0.0f, 0.0f, 2.0f)));

	// create dynamic mesh vertices
	for (int y = 0; y < size; y++) {
		for (int x = 0; x < size; x++)
		{
			mesh->addVertex(Math::vec3(0.0f));
			mesh->addTexCoord(Math::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 AppWorldLogic::update()
{
	// add a counter that shows engine update phase duration
	Profiler::setValue("Update time", "ms", Engine::get()->getUpdateTime(), 50.0f, Math::vec4(0.0f, 0.0f, 0.0f, 1.0f));
	float time = Game::getTime();
	float isize = 30.0f / size;
	// start the counter that shows the time spent for dymanic mesh grid modifying
	Profiler::begin("Grid", Math::vec4(1.0f));
	for (int y = 0; y < size; y++)
	{
		for (int i = 0; i < size; i++)
		{
			float Y = y * isize - 15.0f;
			float Z = Math::cos(Y + time);
			for (int x = 0; x < size; x++)
			{
				float X = x * isize - 15.0f;
				mesh->setVertex(i++, Math::vec3(X, Y, Z * Math::sin(X + time)));
			}
		}
	}
	// stop the counter
	Profiler::end();
	// start the counter that shows the time spent for 
	// dynamic mesh normal vectors, tangent vectors and a mesh bounding box calculation
	Profiler::begin("mesh");
	mesh->updateBounds();
	mesh->updateTangents();
	mesh->flushVertex();
	// stop the counter
	Profiler::end();

	// add the counter that shows the number of dynamic mesh vertices
	Profiler::setValue("Num vertices", "", mesh->getNumVertex(), 32768, NULL);

	return 1;
}

Notice

To create nested counters, you need to use the beginMicro() and endMicro() functions.

Methods:

Name	Description View: Sort by:
setEnabled	Enables or disables the profiler.
isEnabled	Returns a value indicating if the profiler is enabled.
getMicroprofileUrl	Returns the microprofile web server url.
getGui	Returns a pointer to the GUI of the engine Performance Profiler.
setGui	Sets the GUI for the engine Performance Profiler.
setValue	Updates settings of the integer counter.
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 1 console variable is set).
end	Stops the last activated counter and returns its value.
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 setEnabled ( bool enabled ) #

Console: show_profiler

Enables or disables the profiler.

Arguments

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

bool isEnabled ( ) const#

Console: show_profiler

Returns a value indicating if the profiler is enabled.

Return value

1 if the profiler is enabled; otherwise, 0.

void setValue ( const char * name, const char * units, int value, int max_value, float * OUT_arg5 ) #

Updates settings of the integer counter.

Source code (C++)

// add a counter without a graph
Profiler::setValue("Random value 1", "", rand() % 5, 4, NULL);
// add a counter with a colored graph
Profiler::setValue("Random value 2", "", rand() % 10, 9, Math::vec4(1.0f));

Arguments

const char * name - Name of the counter.
const char * units - Counter units.
int value - Value of the counter.
int max_value - Counter maximum value.
float * OUT_arg5 - Color of the graph. Pass NULL if no graph is required.
Notice
This output buffer is to be filled by the Engine as a result of executing the method.

void setValue ( const char * name, const char * units, float value, float max_value, float * OUT_arg5 ) #

Updates settings of the float counter.

Source code (C++)

float rvalue1 = static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
float rvalue2 = static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
// add a counter without a graph
Profiler::setValue("Random value 1", "", rvalue1, 1.0f, NULL);
// add a counter with a colored graph
Profiler::setValue("Random value 2", "", 1 + rvalue2, 10.0f, Math::vec4(1.0f));

Arguments

const char * name - Name of the counter.
const char * units - Counter units.
float value - Value of the counter.
float max_value - Counter maximum value.
float * OUT_arg5 - Color of the graph. Pass NULL if no graph is required.
Notice
This output buffer is to be filled by the Engine as a result of executing the method.

float getValue ( const char * name ) const#

Returns a value of the specified counter.

Arguments

const char * name - The name of the counter.

Return value

Value of the counter in milliseconds.

void begin ( const char * name, const Math::vec4 & color ) const#

Starts a counter with a given name and shows a colored graph (if the show_profiler 1 console variable is set). The counter shows user how many millisecods have been spent for the operation that is performed between the begin() and the end() functions.

Source code (C++)

int size = 128;

Unigine::ObjectMeshDynamicPtr mesh;

	float time = Game::getTime();
	float isize = 30.0f / size;
	// start the counter that shows the time spent for dymanic mesh grid modifying
	Profiler::begin("Grid", Math::vec4(1.0f));
	for (int y = 0; y < size; y++)
	{
		for (int i = 0; i < size; i++)
		{
			float Y = y * isize - 15.0f;
			float Z = Math::cos(Y + time);
			for (int x = 0; x < size; x++)
			{
				float X = x * isize - 15.0f;
				mesh->setVertex(i++, Math::vec3(X, Y, Z * Math::sin(X + time)));
			}
		}
	}
	// stop the counter
	Profiler::end();

Arguments

const char * name - Name of the counter.
const Math::vec4 & color - Color of the graph.

void begin ( const char * name ) const#

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 begin() and the end() functions.

Source code (C++)

Unigine::ObjectMeshDynamicPtr mesh;

	// start the counter that shows the time spent for 
	// dynamic mesh normal vectors, tangent vectors and a mesh bounding box calculation
	Profiler::begin("mesh");
	mesh->updateBounds();
	mesh->updateTangents();
	mesh->flushVertex();
	// stop the counter
	Profiler::end();

Arguments

const char * name - Name of the counter.

float end ( ) const#

Stops the last activated counter and returns its value.

Return value

Value of the counter in milliseconds.

const char * getMicroprofileUrl ( ) const#

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.

Ptr<Gui> getGui ( ) const#

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

Return value

Pointer to the GUI.

void setGui ( const Ptr<Gui> & gui ) #

Sets the GUI for the engine Performance Profiler.

Arguments

const Ptr<Gui> & gui - Pointer to the GUI class instance.

int beginMicro ( const char * name, bool gpu = 0 ) const#

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 beginMicro() and the 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 (C++)

Unigine::ObjectMeshDynamicPtr 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 = Profiler::beginMicro("mesh");
	mesh->updateBounds();
	int c_nested_id = Profiler::beginMicro("mesh_tangents");
	mesh->updateTangents();
	Profiler::endMicro(c_nested_id);
	mesh->flushVertex();
	// stop the counter
	Profiler::endMicro(c_id);

Arguments

const char * name - Name of the counter.
bool gpu - Use 1 for the GPU counter, or 0 — for the CPU counter. The default value is 0.

Return value

ID of the new added counter.

void endMicro ( int id ) const#

Stops a previously activated Microprofile counter with the specified ID.

Arguments

int id - Microprofile counter ID.

Last update: 2024-09-03

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Unigine::Profiler Class

In This Article:

Usage Example#

See Also#

Methods:

Profiler Class

Members

void setEnabled ( bool enabled ) #

Arguments

bool isEnabled ( ) const#

Return value

void setValue ( const char * name, const char * units, int value, int max_value, float * OUT_arg5 ) #

Arguments

void setValue ( const char * name, const char * units, float value, float max_value, float * OUT_arg5 ) #

Arguments

float getValue ( const char * name ) const#

Arguments

Return value

void begin ( const char * name, const Math::vec4 & color ) const#

Arguments

void begin ( const char * name ) const#

Arguments

float end ( ) const#

Return value

const char * getMicroprofileUrl ( ) const#

Return value

Ptr<Gui> getGui ( ) const#

Return value

void setGui ( const Ptr<Gui> & gui ) #

Arguments

int beginMicro ( const char * name, bool gpu = 0 ) const#

Arguments

Return value

void endMicro ( int id ) const#

Arguments