docs/primitive__renderer_8hpp_source.html

#pragma once


#include <vector>


#include "../../util/position.hpp"


#include "../../shapes/shapes.hpp"


#include "../vao.hpp"

#include "../vbo.hpp"

#include "../shader.hpp"


namespace cangine {


    class PrimitiveRenderer {

    private:

        static PrimitiveRenderer* instance;

        std::vector<Vertex> vertices;

        VAO vao;

        VBO vbo;

        Shader* shader;

    public:

        PrimitiveRenderer(Shader* shader);

        void beginFrame();

        void endFrame();

        void draw(const Triangle& t);

        void draw(const Rectangle& t);

        void setShader(Shader* shader);

    };


}

cangine::PrimitiveRenderer
Batches and draws untextured geometric primitives.
Definition primitive_renderer.hpp:21

cangine::PrimitiveRenderer::vbo
VBO vbo
Vertex buffer holding the batched data.
Definition primitive_renderer.hpp:26

cangine::PrimitiveRenderer::shader
Shader * shader
Shader used to draw the primitives.
Definition primitive_renderer.hpp:27

cangine::PrimitiveRenderer::beginFrame
void beginFrame()
Resets the batch at the start of a frame.
Definition primitive_renderer.cpp:40

cangine::PrimitiveRenderer::endFrame
void endFrame()
Flushes the accumulated batch to the GPU.
Definition primitive_renderer.cpp:45

cangine::PrimitiveRenderer::instance
static PrimitiveRenderer * instance
Singleton instance.
Definition primitive_renderer.hpp:23

cangine::PrimitiveRenderer::vertices
std::vector< Vertex > vertices
Accumulated vertices for the current frame.
Definition primitive_renderer.hpp:24

cangine::PrimitiveRenderer::draw
void draw(const Triangle &t)
Adds a triangle to the current batch.
Definition primitive_renderer.cpp:56

cangine::PrimitiveRenderer::vao
VAO vao
Vertex array describing the layout.
Definition primitive_renderer.hpp:25

cangine::PrimitiveRenderer::setShader
void setShader(Shader *shader)
Replaces the shader used for drawing.
Definition primitive_renderer.cpp:68

cangine::Shader
Wraps a compiled and linked OpenGL shader program.
Definition shader.hpp:61

cangine::VAO
Wraps an OpenGL Vertex Array Object.
Definition vao.hpp:12

cangine::VBO
Wraps an OpenGL Vertex Buffer Object.
Definition vbo.hpp:11

cangine
Definition audiomanager.cpp:4

cangine::Rectangle
An axis-aligned rectangle with a position, size and color.
Definition rectangle.hpp:21

cangine::Triangle
A triangle defined by three vertices.
Definition triangle.hpp:14