This class provides an interface to draw 2D shapes. More...

#include <Renderer2D.h>

Static Public Member Functions
static void	Init (int reserveVertices=10000)
	Initializes the Renderer2D.

static void	BeginScene ()
	Begins the scene.

static void	EndScene ()
	Ends the scene.

static void	DrawQuad (float x, float y, float width, float height, const Maths::Vec3 &color)
	Draws a quad.

static void	DrawQuad (const Maths::Vec2 &vertex1, const Maths::Vec2 &vertex2, const Maths::Vec2 &vertex3, const Maths::Vec2 &vertex4, const Maths::Vec3 &color)
	Draws a quad.

static void	DrawLine (Maths::Vec2 start, Maths::Vec2 end, float thickness, Maths::Vec3 color)
	Draws a line.

static void	DrawEllipse (Maths::Vec2 center, float radiusX, float radiusY, Maths::Vec3 color)
	Draws an ellipse.

static void	DrawCircle (Maths::Vec2 center, float radius, Maths::Vec3 color)
	Draws a circle.

Detailed Description

This class provides an interface to draw 2D shapes.

This class provides an interface to draw 2D shapes like quads, lines, ellipses, and circles. All the functions are static, so you don't need to create an instance of this class to use it. It uses the

Definition at line 38 of file Renderer2D.h.

Member Function Documentation

◆ BeginScene()

void Vivid::Renderer2D::BeginScene ( )

static

Begins the scene.

Begins the scene by binding the VertexArray and the shaders.

Definition at line 67 of file Renderer2D.cpp.

◆ DrawCircle()

void Vivid::Renderer2D::DrawCircle	(	Maths::Vec2	center,
		float	radius,
		Maths::Vec3	color
	)

static

Draws a circle.

Draws a circle with the specified center, radius, and color. This is also a quad and is draw using a shader that makes it look like a circle.

Parameters

center	The center of the circle.
radius	The radius of the circle.
color	The color of the circle.

Definition at line 113 of file Renderer2D.cpp.

◆ DrawEllipse()

void Vivid::Renderer2D::DrawEllipse	(	Maths::Vec2	center,
		float	radiusX,
		float	radiusY,
		Maths::Vec3	color
	)

static

Draws an ellipse.

Draws an ellipse with the specified center, radiusX, radiusY, and color. This is also a quad and is draw using a shader that makes it look like an ellipse.

Parameters

center	The center of the ellipse.
radiusX	The radius of the ellipse in the x-axis.
radiusY	The radius of the ellipse in the y-axis.
color	The color of the ellipse.

Definition at line 108 of file Renderer2D.cpp.

◆ DrawLine()

void Vivid::Renderer2D::DrawLine	(	Maths::Vec2	start,
		Maths::Vec2	end,
		float	thickness,
		Maths::Vec3	color
	)

static

Draws a line.

Draws a line with the specified vertices and color. The line is drawn using a line shader. Which is a essentially a small quad with anti aliasing, to make the line look smooth.

Parameters

start	The first vertex of the line.
end	The second vertex of the line.
thickness	The thickness of the line.
color	The color of the line.

Definition at line 98 of file Renderer2D.cpp.

◆ DrawQuad() [1/2]

void Vivid::Renderer2D::DrawQuad	(	const Maths::Vec2 &	vertex1,
		const Maths::Vec2 &	vertex2,
		const Maths::Vec2 &	vertex3,
		const Maths::Vec2 &	vertex4,
		const Maths::Vec3 &	color
	)

static

Draws a quad.

Draws a quad with the specified vertices and color. The order of the vertices is important. The quad is drawn in the order vertex1, vertex2, vertex3, vertex4.

Parameters

vertex1	The first vertex of the quad.
vertex2	The second vertex of the quad.
vertex3	The third vertex of the quad.
vertex4	The fourth vertex of the quad.
color	The color of the quad.

Definition at line 92 of file Renderer2D.cpp.

◆ DrawQuad() [2/2]

void Vivid::Renderer2D::DrawQuad	(	float	x,
		float	y,
		float	width,
		float	height,
		const Maths::Vec3 &	color
	)

static

Draws a quad.

Draws a quad with specified center-positon, size, and color.

Parameters

x	The x-coordinate of the center of the quad.
y	The y-coordinate of the center of the quad.
width	The width of the quad.
height	The height of the quad.
color	The color of the quad.

Definition at line 87 of file Renderer2D.cpp.

◆ EndScene()

void Vivid::Renderer2D::EndScene ( )

static

Ends the scene.

Ends the scene by unbinding the VertexArray and the shaders. This is where the actual draw call is made.

Definition at line 119 of file Renderer2D.cpp.

◆ Init()

void Vivid::Renderer2D::Init ( int reserveVertices = 10000 )

static

Initializes the Renderer2D.

Initializes the Renderer2D by creating the VertexArray, the shaders, and the vertices and indices of the shapes.

Parameters

reserveVertices The number of vertices to reserve.

Definition at line 9 of file Renderer2D.cpp.

The documentation for this class was generated from the following files:

src/core/renderer/Renderer2D.h
src/core/renderer/Renderer2D.cpp

Static Public Member Functions

Detailed Description

Member Function Documentation

◆ BeginScene()

◆ DrawCircle()

◆ DrawEllipse()

◆ DrawLine()

◆ DrawQuad() [1/2]

◆ DrawQuad() [2/2]

◆ EndScene()

◆ Init()