oglabstr

README

oglabstr - OpenGL abstractions

Small lib I made for myself that abstracts some OpenGL primitives into easy to use structs.

Documentation

Index

• func CreateWindow(width, height int, title string) *glfw.Window
• func GetSizeOfType(glType uint32) int32
• type Camera
  • func NewCamera(position mgl32.Vec3) *Camera
  • func (c *Camera) GetViewMat() mgl32.Mat4
  • func (c *Camera) KeyboardUpdate(direction Direction, deltaTime float32)
  • func (c *Camera) MouseUpdate(xoffset, yoffset float32)
  • func (c *Camera) ScrollUpdate(yoffset float32)
• type Direction
• type IndexBuffer
  • func NewIndexBuffer(data []uint32) *IndexBuffer
  • func (ib *IndexBuffer) Bind()
  • func (ib *IndexBuffer) Delete()
  • func (ib *IndexBuffer) Unbind()
• type Material
  • func NewMaterial(name string, diffuse, specular *Texture, shininess float32) *Material
  • func (m *Material) Bind(shader *Shader)
• type Shader
  • func NewShaderProgram(vertexShaderPath, fragmentShaderPath string) (*Shader, error)
  • func (s *Shader) Bind()
  • func (s *Shader) SetFloat(name string, v0 float32)
  • func (s *Shader) SetFloat3(name string, v0, v1, v2 float32)
  • func (s *Shader) SetInt(name string, value int32)
  • func (s *Shader) SetMat3(name string, mat mgl32.Mat3, transpose bool)
  • func (s *Shader) SetMat4(name string, mat mgl32.Mat4, transpose bool)
  • func (s *Shader) SetVec3(name string, vec3 mgl32.Vec3)
  • func (s *Shader) SetVec4(name string, vec4 mgl32.Vec4)
  • func (s *Shader) Unbind()
• type Texture
  • func NewTexture(path string, slot uint32) *Texture
  • func (t *Texture) Bind()
  • func (t *Texture) Unbind()
• type VertexArray
  • func NewVertexArray() *VertexArray
  • func (va *VertexArray) AddBuffer(vb *VertexBuffer, layout *VertexBufferLayout)
  • func (va *VertexArray) Bind()
  • func (va *VertexArray) Unbind()
• type VertexBuffer
  • func NewVertexBuffer(data interface{}, size int) *VertexBuffer
  • func (ib *VertexBuffer) Bind()
  • func (ib *VertexBuffer) Delete()
  • func (ib *VertexBuffer) Unbind()
• type VertexBufferElement
• type VertexBufferLayout
  • func NewVertexBufferLayout() *VertexBufferLayout
  • func (vbl *VertexBufferLayout) Pushf32(count int32)
  • func (vbl *VertexBufferLayout) Pushub(count int32)
  • func (vbl *VertexBufferLayout) Pushui32(count int32)

Functions

func CreateWindow

func CreateWindow(width, height int, title string) *glfw.Window

func GetSizeOfType

func GetSizeOfType(glType uint32) int32

Types

type Camera

type Camera struct {
	Position         mgl32.Vec3
	Front, Up, Right mgl32.Vec3
	WorldUp          mgl32.Vec3

	Yaw, Pitch float32

	MovementSpeed float32
	Sensitivity   float32
	Zoom          float32

	//For perspective projection
	Near, Far float32
}

func NewCamera

func NewCamera(position mgl32.Vec3) *Camera

func (*Camera) GetViewMat

func (c *Camera) GetViewMat() mgl32.Mat4

func (*Camera) KeyboardUpdate

func (c *Camera) KeyboardUpdate(direction Direction, deltaTime float32)

func (*Camera) MouseUpdate

func (c *Camera) MouseUpdate(xoffset, yoffset float32)

func (*Camera) ScrollUpdate

func (c *Camera) ScrollUpdate(yoffset float32)

type Direction

type Direction byte

const (
	Forward Direction = iota
	Backward
	Right
	Left
	Up
	Down
)

type IndexBuffer

type IndexBuffer struct {
	Count int32
	// contains filtered or unexported fields
}

func NewIndexBuffer

func NewIndexBuffer(data []uint32) *IndexBuffer

func (*IndexBuffer) Bind

func (ib *IndexBuffer) Bind()

func (*IndexBuffer) Delete

func (ib *IndexBuffer) Delete()

func (*IndexBuffer) Unbind

func (ib *IndexBuffer) Unbind()

type Material

type Material struct {
	Name string

	Diffuse, Specular *Texture
	Shininess         float32
	// contains filtered or unexported fields
}

func NewMaterial

func NewMaterial(name string, diffuse, specular *Texture, shininess float32) *Material

func (*Material) Bind

func (m *Material) Bind(shader *Shader)

type Shader

type Shader struct {
	// contains filtered or unexported fields
}

func NewShaderProgram

func NewShaderProgram(vertexShaderPath, fragmentShaderPath string) (*Shader, error)

func (*Shader) Bind

func (s *Shader) Bind()

func (*Shader) SetFloat

func (s *Shader) SetFloat(name string, v0 float32)

func (*Shader) SetFloat3

func (s *Shader) SetFloat3(name string, v0, v1, v2 float32)

func (*Shader) SetInt

func (s *Shader) SetInt(name string, value int32)

func (*Shader) SetMat3

func (s *Shader) SetMat3(name string, mat mgl32.Mat3, transpose bool)

func (*Shader) SetMat4

func (s *Shader) SetMat4(name string, mat mgl32.Mat4, transpose bool)

func (*Shader) SetVec3

func (s *Shader) SetVec3(name string, vec3 mgl32.Vec3)

func (*Shader) SetVec4

func (s *Shader) SetVec4(name string, vec4 mgl32.Vec4)

func (*Shader) Unbind

func (s *Shader) Unbind()

type Texture

type Texture struct {
	Width, Height, Bpp int32
	Slot               uint32
	// contains filtered or unexported fields
}

func NewTexture

func NewTexture(path string, slot uint32) *Texture

func (*Texture) Bind

func (t *Texture) Bind()

func (*Texture) Unbind

func (t *Texture) Unbind()

type VertexArray

type VertexArray struct {
	// contains filtered or unexported fields
}

func NewVertexArray

func NewVertexArray() *VertexArray

func (*VertexArray) AddBuffer

func (va *VertexArray) AddBuffer(vb *VertexBuffer, layout *VertexBufferLayout)

func (*VertexArray) Bind

func (va *VertexArray) Bind()

func (*VertexArray) Unbind

func (va *VertexArray) Unbind()

type VertexBuffer

type VertexBuffer struct {
	// contains filtered or unexported fields
}

func NewVertexBuffer

func NewVertexBuffer(data interface{}, size int) *VertexBuffer

func (*VertexBuffer) Bind

func (ib *VertexBuffer) Bind()

func (*VertexBuffer) Delete

func (ib *VertexBuffer) Delete()

func (*VertexBuffer) Unbind

func (ib *VertexBuffer) Unbind()

type VertexBufferElement

type VertexBufferElement struct {
	// contains filtered or unexported fields
}

type VertexBufferLayout

type VertexBufferLayout struct {
	Elements []VertexBufferElement
	Stride   int32
}

func NewVertexBufferLayout

func NewVertexBufferLayout() *VertexBufferLayout

func (*VertexBufferLayout) Pushf32

func (vbl *VertexBufferLayout) Pushf32(count int32)

func (*VertexBufferLayout) Pushub

func (vbl *VertexBufferLayout) Pushub(count int32)

func (*VertexBufferLayout) Pushui32

func (vbl *VertexBufferLayout) Pushui32(count int32)