brenta::mesh Class Reference

The Mesh class represents a 3D model. More...

#include <mesh.hpp>

Data Structures
class	builder
	The Builder class is used to build a Mesh object. More...
struct	config

Public Member Functions
	mesh (config conf)
void	draw (types::shader_name_t shader_name)

Data Fields
std::vector< types::vertex >	vertices
	vertices of the mesh
std::vector< unsigned int >	indices
	indices of the mesh
std::vector< types::texture >	textures
	textures of the mesh
GLint	wrapping
	Type of texture wrapping.
GLint	filtering_min
	Minifying texture filtering.
GLint	filtering_mag
	Magnifying texture filtering.
GLboolean	has_mipmap
	Should the texture have a mipmap?
GLint	mipmap_min
	Type of mipmap minifying texture filtering.
GLint	mipmap_mag
	Type of mipmap magnifying texture filtering.

Static Public Attributes
static const config	default_config

Detailed Description

The Mesh class represents a 3D model.

A mesh is a collection of vertices, indices and textures that represent a 3D model. The mesh can be drawn using a shader and calling the draw() method.

Definition at line 61 of file mesh.hpp.

Constructor & Destructor Documentation

mesh()

mesh::mesh

(

config

conf

)

Definition at line 24 of file mesh.cpp.

Member Function Documentation

draw()

void mesh::draw

(

types::shader_name_t

shader_name

)

Definition at line 43 of file mesh.cpp.

Field Documentation

default_config

const mesh::config mesh::default_config

static

Initial value:

= {
  {},
  {},
  {},
  GL_REPEAT,
  GL_NEAREST,
  GL_LINEAR,
  GL_TRUE,
  GL_LINEAR_MIPMAP_LINEAR,
  GL_LINEAR,
}

Definition at line 187 of file mesh.hpp.

filtering_mag

GLint brenta::mesh::filtering_mag

Magnifying texture filtering.

Type of texture filtering used when magnifying (scaling up) a texture. Options are:

• GL_NEAREST: select the closest color to the texture coordinate
• GL_LINEAR: interpolates the neighbouring pixels to get an approximate color.

Definition at line 115 of file mesh.hpp.

filtering_min

GLint brenta::mesh::filtering_min

Minifying texture filtering.

Type of texture filtering used when minifying (scaling down) a texture. Options are:

• GL_NEAREST: select the closest color to the texture coordinate
• GL_LINEAR: interpolates the neighbouring pixels to get an approximate color.

Definition at line 105 of file mesh.hpp.

has_mipmap

GLboolean brenta::mesh::has_mipmap

Should the texture have a mipmap?

Definition at line 119 of file mesh.hpp.

indices

std::vector<unsigned int> brenta::mesh::indices

indices of the mesh

Indicies are used to reduce the memory footprint required to represent a 3D model. They are indices in the vertex array and there can be multiple indices for a vertex.

Definition at line 75 of file mesh.hpp.

mipmap_mag

GLint brenta::mesh::mipmap_mag

Type of mipmap magnifying texture filtering.

Type of texture filtering used when magnifying (scaling up) a texture with mipmaps. Options are:

• GL_NEAREST: select the closest color to the texture coordinate
• GL_LINEAR: interpolates the neighbouring pixels to get an approximate color.
• GL_NEAREST_MIPMAP_NEAREST: selects the mipmap that most closely matches the size of the pixel being textured and uses the GL_NEAREST criterion (the texture element nearest to the center of the pixel) to produce a texture value.
• GL_LINEAR_MIPMAP_NEAREST: selects the mipmap that most closely matches the size of the pixel being textured and uses the GL_LINEAR criterion (a weighted average of the four texture elements that are closest to the center of the pixel) to produce a texture value.
• GL_NEAREST_MIPMAP_LINEAR: selects the two mipmaps that most closely match the size of the pixel being textured and uses the GL_NEAREST criterion (the texture element nearest to the center of the pixel) to produce a texture value from each mipmap. The final texture value is a weighted average of those two values.
• GL_LINEAR_MIPMAP_LINEAR: selects the two mipmaps that most closely match the size of the pixel being textured and uses the GL_LINEAR criterion (a weighted average of the texture elements that are closest to the center of the pixel) to produce a texture value from each mipmap. The final texture value is a weighted average of those two values.

Definition at line 183 of file mesh.hpp.

mipmap_min

GLint brenta::mesh::mipmap_min

Type of mipmap minifying texture filtering.

Type of texture filtering used when minifying (scaling down) a texture with mipmaps. Options are:

• GL_NEAREST: select the closest color to the texture coordinate
• GL_LINEAR: interpolates the neighbouring pixels to get an approximate color.
• GL_NEAREST_MIPMAP_NEAREST: selects the mipmap that most closely matches the size of the pixel being textured and uses the GL_NEAREST criterion (the texture element nearest to the center of the pixel) to produce a texture value.
• GL_LINEAR_MIPMAP_NEAREST: selects the mipmap that most closely matches the size of the pixel being textured and uses the GL_LINEAR criterion (a weighted average of the four texture elements that are closest to the center of the pixel) to produce a texture value.
• GL_NEAREST_MIPMAP_LINEAR: selects the two mipmaps that most closely match the size of the pixel being textured and uses the GL_NEAREST criterion (the texture element nearest to the center of the pixel) to produce a texture value from each mipmap. The final texture value is a weighted average of those two values.
• GL_LINEAR_MIPMAP_LINEAR: selects the two mipmaps that most closely match the size of the pixel being textured and uses the GL_LINEAR criterion (a weighted average of the texture elements that are closest to the center of the pixel) to produce a texture value from each mipmap. The final texture value is a weighted average of those two values.

Definition at line 151 of file mesh.hpp.

textures

std::vector<types::texture> brenta::mesh::textures

textures of the mesh

Definition at line 79 of file mesh.hpp.

vertices

std::vector<types::vertex> brenta::mesh::vertices

vertices of the mesh

Definition at line 67 of file mesh.hpp.

wrapping

GLint brenta::mesh::wrapping

Type of texture wrapping.

Options are:

• GL_REPEAT: The default behavior for textures. Repeats the texture image.
• GL_MIRRORED_REPEAT: Same as GL_REPEAT but mirrors the image with each repeat.
• GL_CLAMP_TO_EDGE: Clamps the coordinates between 0 and 1. The result is that higher coordinates become clamped to the edge, resulting in a stretched edge pattern.
• GL_CLAMP_TO_BORDER: Coordinates outside the range are now given a user-specified border color.

Definition at line 95 of file mesh.hpp.

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

• include/brenta/mesh.hpp
• src/mesh.cpp