Unigine::DecalProj Class

// AppWorldLogic.h

#include <UnigineLogic.h>
#include <UnigineEditor.h>
#include <UnigineDecals.h>

class AppWorldLogic : public Unigine::WorldLogic {
	
public:
	AppWorldLogic();
	virtual ~AppWorldLogic();
	
	virtual int init();
	
	virtual int update();
	virtual int postUpdate();
	virtual int updatePhysics();
	
	virtual int shutdown();
	virtual int destroyRenderResources();
	
	virtual int save(const Unigine::StreamPtr &stream);
	virtual int restore(const Unigine::StreamPtr &stream);

private:
	Unigine::DecalProjPtr decal_proj;
};

// AppWorldLogic.cpp

#include "AppWorldLogic.h";

using namespace Unigine;

int AppWorldLogic::init()
{

	// create an proj decal and setting its radius to 10, fov to 60, aspect to 1.0f, material to "decal_base"
	decal_proj = DecalProj::create(10.0f, 60.0f, 1.0f, "decal_base");

	// set the name and position of the decal
	decal_proj->setName("Proj Decal");
	decal_proj->setWorldPosition(Math::Vec3(0.0f, 0.0f, 5.0f));

	return 1;
}

DecalProj Class

Members

---

static DecalProjPtr create ( float radius, float fov, float aspect, const char * name ) #

Constructor. Creates a new projected decal with the given properties.

Arguments

• float radius - The height of the projection pyramid along the Z axis, in units.
• float fov - The field of view of the decal's projector, in degrees.
• float aspect - The aspect ratio of the decal, in units.
• const char * name - A material of the decal.

void setAspect ( float aspect ) #

Sets the new aspect ratio of the decal, in units.

Arguments

• float aspect - The aspect ratio of the decal, in units. If a negative value is provided, 0 will be used instead.

float getAspect ( ) #

Returns the current aspect ratio of the decal.

Return value

The aspect ratio of the decal, in units.

void setFov ( float fov ) #

Sets a new field of view of the decal's projector.

Arguments

• float fov - A field of view of the decal's projector, in degrees. The provided value will be clamped in the range [1;90].

float getFov ( ) #

Returns the current field of view of the decal's projector.

Return value

The field of view of the decal's projector, in degrees.

Math::mat4 getProjection ( ) #

Returns the projection matrix.

Return value

The projection matrix of the decal.

void setRadius ( float radius ) #

Sets a new height of the projection pyramid along the Z axis, in units.

Arguments

• float radius - A height of the projection pyramid along the Z axis, in units. If a too small value is provided, 1E-6 will be used instead.

float getRadius ( ) #

Returns the current height of the projection pyramid along the Z axis, in units.

Return value

The height of the projection pyramid along the Z axis, in units.

void setZNear ( float znear ) #

Sets a distance to the near clipping plane of the decal.

Arguments

• float znear - A new distance to the near clipping plane, in units. If a negative value is provided, 0 will be used instead.

float getZNear ( ) #

Returns the distance to the near clipping plane of the decal.

Return value

The distance to the near clipping plane, in units.

static int type ( ) #

Returns the type of the node.

Return value

Decal type identifier.