systems::render Namespace Reference

All utilities for rendering entities. More...

Functions
void	initStencilShader ()
	Initialize the stencil shader.
void	prepareInstancedMesh (const std::vector< glm::mat4 > &models, const std::vector< glm::vec4 > &colors)
	This methods calls the renderer and prepares the buffers with the model matrixes and colors.
void	getOtherLightData (LightShaderBlock &block, const Shared< LightComponent > &light)
	Retrieves all the light data and stores them in a shader block.
std::array< LightShaderBlock, SHADER_MAX_LIGHTS >	prepareLightData ()
	Prepares data of all lights in the scene and put them in an array with defined size.
void	sendOtherLightData (const Shared< ogl::ShaderProgram > &shader, LightShaderBlock &data, size_t &index)
	This method sends to the used shader program the specific data for that light caster.
void	sendLightDataShader (const Shared< ogl::ShaderProgram > &shader, std::array< LightShaderBlock, SHADER_MAX_LIGHTS > data)
	This method sends to the used shader program the common lights data.
void	renderSkybox (const unsigned int &id, const Shared< ogl::ShaderProgram > &shader)
	This method draws the Skybox of the scene.
void	renderAllMeshes ()
	Renders all the entities in the scene.
void	renderInstancedMeshes ()
	Renders all entities with instanced rendering available.
std::vector< glm::vec3 >	getBoxLines (glm::vec3 &botLeft, glm::vec3 &topRight)
	This method calculates the lines to be drawn from two corners of a ColliderComponent.
void	renderBoundingBox ()
	Renders all bounding box of the entities with a ColliderComponent.

Detailed Description

All utilities for rendering entities.

Function Documentation

getBoxLines()

std::vector< glm::vec3 > systems::render::getBoxLines	(	glm::vec3 &	botLeft,
		glm::vec3 &	topRight )

This method calculates the lines to be drawn from two corners of a ColliderComponent.

Parameters

botLeft	the bot left corner position
topRight	the top right corner position

getOtherLightData()

void systems::render::getOtherLightData	(	LightShaderBlock &	block,
		const Shared< LightComponent > &	light )

Retrieves all the light data and stores them in a shader block.

It prepares a single light data for sending to the shader program.

Parameters

[out]	block	the shader light block
[in]	light	the light in the scene

prepareInstancedMesh()

void systems::render::prepareInstancedMesh	(	const std::vector< glm::mat4 > &	models,
		const std::vector< glm::vec4 > &	colors )

This methods calls the renderer and prepares the buffers with the model matrixes and colors.

Parameters

models	a list of model matrixes
colors	a list of colors

TODO implement proper instancing rendering for every mesh

Warning

This currently works only for instanced rendering with spheres.

prepareLightData()

std::array< LightShaderBlock, SHADER_MAX_LIGHTS > systems::render::prepareLightData

(

)

Prepares data of all lights in the scene and put them in an array with defined size.

Returns

an array containing all the lights data prepared to be sent to shader programs.

renderAllMeshes()

void systems::render::renderAllMeshes

(

)

Renders all the entities in the scene.

It renderes all the entities with RenderComponent.

renderSkybox()

void systems::render::renderSkybox	(	const unsigned int &	id,
		const Shared< ogl::ShaderProgram > &	shader )

This method draws the Skybox of the scene.

Parameters

id	the entity id
shader	the skybox shader program

sendLightDataShader()

void systems::render::sendLightDataShader	(	const Shared< ogl::ShaderProgram > &	shader,
		std::array< LightShaderBlock, SHADER_MAX_LIGHTS >	data )

This method sends to the used shader program the common lights data.

Warning

It doesn't send data for specific casters. The method systems::render::sendOtherLightData() should be called anyway.

Parameters

shader	the shader program shared pointer
data	the array processed with systems::render::preparedLightData()

See also

systems::render::preparedLightData()

sendOtherLightData()

void systems::render::sendOtherLightData	(	const Shared< ogl::ShaderProgram > &	shader,
		LightShaderBlock &	data,
		size_t &	index )

This method sends to the used shader program the specific data for that light caster.

Warning

It doesn't send common light data. The method systems::render::sendOtherLightData() should be called anyway.

Parameters

shader	the shader program shared pointer
data	the array processed with systems::render::prepareLightData()
index	the current light index in the array from systems::render::prepareLightData()

See also

systems::render::preparedLightData()