本文整理汇总了Golang中github.com/go-gl/gl/v3/3-core/gl.BindBuffer函数的典型用法代码示例。如果您正苦于以下问题:Golang BindBuffer函数的具体用法?Golang BindBuffer怎么用?Golang BindBuffer使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了BindBuffer函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Golang代码示例。
示例1: UpdatePoints
// Updating the list of Points that this LineRender should be rendering.
func (lr *LineRender) UpdatePoints(points []Point) {
// Determining the buffer mode.
var mode uint32
if lr.static {
mode = gl.STATIC_DRAW
} else {
mode = gl.DYNAMIC_DRAW
}
// Setting the number of points.
lr.points = int32(len(points))
// Generating the buffer data.
vboData := generateVBOData(points)
eboData := generateEBOData(len(points))
// Filling the buffer data.
gl.BindVertexArray(lr.vao)
gl.BindBuffer(gl.ARRAY_BUFFER, lr.vbo)
gl.BufferData(gl.ARRAY_BUFFER, len(vboData)*4, gl.Ptr(vboData), mode)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, lr.ebo)
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, len(eboData)*4, gl.Ptr(eboData), mode)
}
开发者ID:crockeo,项目名称:go-tuner,代码行数:26,代码来源:linerender.go
示例2: CreateRenderObject
// Creating a RenderObject with a given shaderProgram, texture, and set of
// vertices.
func CreateRenderObject(shaderProgram ShaderProgram, texture Texture, vertices []float32) *RenderObject {
renderObject := new(RenderObject)
// Creating the basic information.
renderObject.shaderProgram = uint32(shaderProgram)
renderObject.texture = uint32(texture)
gl.GenVertexArrays(1, &renderObject.vao)
gl.GenBuffers(1, &renderObject.vbo)
gl.GenBuffers(1, &renderObject.ebo)
// Filling the RenderObject with information.
gl.BindVertexArray(renderObject.vao)
gl.BindBuffer(gl.ARRAY_BUFFER, renderObject.vbo)
gl.BufferData(gl.ARRAY_BUFFER, len(vertices)*4, gl.Ptr(vertices), gl.STATIC_DRAW)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, renderObject.ebo)
vertOrder := []uint32{
0, 1, 2,
2, 3, 0,
}
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, len(vertOrder)*4, gl.Ptr(vertOrder), gl.STATIC_DRAW)
// Loading up vertex attributes.
vertAttrib := uint32(gl.GetAttribLocation(renderObject.shaderProgram, gl.Str("vert\x00")))
gl.EnableVertexAttribArray(vertAttrib)
gl.VertexAttribPointer(vertAttrib, 2, gl.FLOAT, false, 4*4, gl.PtrOffset(0))
// Loading up texture attributes.
texAttrib := uint32(gl.GetAttribLocation(renderObject.shaderProgram, gl.Str("vertTexCoord\x00")))
gl.EnableVertexAttribArray(texAttrib)
gl.VertexAttribPointer(texAttrib, 2, gl.FLOAT, false, 4*4, gl.PtrOffset(2*4))
return renderObject
}
开发者ID:crockeo,项目名称:go-tuner,代码行数:37,代码来源:renderobject.go
示例3: createPlane
func createPlane(x0, y0, x1, y1 float32, verts [12]float32, indexes [6]uint32, uvs [8]float32, normals [12]float32) *Renderable {
const floatSize = 4
const uintSize = 4
r := NewRenderable()
gl.GenVertexArrays(1, &r.Vao)
r.FaceCount = 2
// create a VBO to hold the vertex data
gl.GenBuffers(1, &r.VertVBO)
gl.BindBuffer(gl.ARRAY_BUFFER, r.VertVBO)
gl.BufferData(gl.ARRAY_BUFFER, floatSize*len(verts), gl.Ptr(&verts[0]), gl.STATIC_DRAW)
// create a VBO to hold the uv data
gl.GenBuffers(1, &r.UvVBO)
gl.BindBuffer(gl.ARRAY_BUFFER, r.UvVBO)
gl.BufferData(gl.ARRAY_BUFFER, floatSize*len(uvs), gl.Ptr(&uvs[0]), gl.STATIC_DRAW)
// create a VBO to hold the normals data
gl.GenBuffers(1, &r.NormsVBO)
gl.BindBuffer(gl.ARRAY_BUFFER, r.NormsVBO)
gl.BufferData(gl.ARRAY_BUFFER, floatSize*len(normals), gl.Ptr(&normals[0]), gl.STATIC_DRAW)
// create a VBO to hold the face indexes
gl.GenBuffers(1, &r.ElementsVBO)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, r.ElementsVBO)
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, uintSize*len(indexes), gl.Ptr(&indexes[0]), gl.STATIC_DRAW)
return r
}
开发者ID:tbogdala,项目名称:cubez,代码行数:30,代码来源:exampleapp.go
示例4: CreateSprite
func CreateSprite(t Texture) (s Sprite, err error) {
s.texture = t
s.shader, err = CreateShader(vertexShader, fragmentShader)
if err != nil {
return s, err
}
gl.GenBuffers(1, &s.ebo)
gl.GenBuffers(1, &s.vbo)
gl.GenVertexArrays(1, &s.vao)
gl.BindVertexArray(s.vao)
gl.BindBuffer(gl.ARRAY_BUFFER, s.vbo)
gl.BufferData(gl.ARRAY_BUFFER, len(vertices)*4, gl.Ptr(vertices), gl.STATIC_DRAW)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, s.ebo)
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, len(indices)*4, gl.Ptr(indices), gl.STATIC_DRAW)
err = s.shader.SetAttrib("vert", 2, gl.FLOAT, 4*4, 0)
err = s.shader.SetAttrib("vertTexCoord", 2, gl.FLOAT, 4*4, 2*4)
gl.BindVertexArray(0)
return s, err
}
开发者ID:vinzBad,项目名称:grid,代码行数:27,代码来源:sprite.go
示例5: LoadText
func LoadText(f *Font) (t *Text) {
t = new(Text)
t.font = f
// text hover values
// "resting state" of a text object is the min scale
t.ScaleMin = 1.0
t.ScaleMax = 1.1
t.SetScale(1)
// size of glfloat
glfloat_size := int32(4)
// stride of the buffered data
xy_count := int32(2)
stride := xy_count + int32(2)
gl.GenVertexArrays(1, &t.vao)
gl.GenBuffers(1, &t.vbo)
gl.GenBuffers(1, &t.ebo)
// vao
gl.BindVertexArray(t.vao)
gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, t.font.textureID)
// vbo
// specify the buffer for which the VertexAttribPointer calls apply
gl.BindBuffer(gl.ARRAY_BUFFER, t.vbo)
gl.EnableVertexAttribArray(t.font.centeredPosition)
gl.VertexAttribPointer(
t.font.centeredPosition,
2,
gl.FLOAT,
false,
glfloat_size*stride,
gl.PtrOffset(0),
)
gl.EnableVertexAttribArray(t.font.uv)
gl.VertexAttribPointer(
t.font.uv,
2,
gl.FLOAT,
false,
glfloat_size*stride,
gl.PtrOffset(int(glfloat_size*xy_count)),
)
// ebo
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, t.ebo)
// i am guessing that order is important here
gl.BindVertexArray(0)
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0)
return t
}
开发者ID:CubeLite,项目名称:gltext-1,代码行数:60,代码来源:text.go
示例6: Draw
func (r *GlowRenderer) Draw() (err error) {
gl.UseProgram(r.shader)
gl.Uniform1i(r.textureUnitLoc, 0)
gl.BindBuffer(gl.ARRAY_BUFFER, r.coords)
gl.EnableVertexAttribArray(r.positionLoc)
gl.VertexAttribPointer(r.positionLoc, 3, gl.FLOAT, false, 5*4, gl.PtrOffset(0))
gl.EnableVertexAttribArray(r.textureLoc)
gl.VertexAttribPointer(r.textureLoc, 2, gl.FLOAT, false, 5*4, gl.PtrOffset(3*4))
gl.Uniform1i(r.blurAmountLoc, int32(r.blur))
gl.Uniform1f(r.blurScaleLoc, r.scale)
gl.Uniform1f(r.blurStrengthLoc, r.strength)
gl.Uniform2f(r.bufferDimensionsLoc, float32(r.width), float32(r.height))
gl.BindFramebuffer(gl.FRAMEBUFFER, r.BlurFb)
gl.Viewport(0, 0, int32(r.width), int32(r.height))
gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, r.GlowTex)
gl.Uniform1i(r.orientationLoc, 0)
gl.DrawArrays(gl.TRIANGLE_STRIP, 0, 4)
gl.BindFramebuffer(gl.FRAMEBUFFER, 0)
gl.Viewport(0, 0, int32(r.oldwidth), int32(r.oldheight))
gl.BlendFunc(gl.ONE, gl.ONE)
gl.BindTexture(gl.TEXTURE_2D, r.BlurTex)
gl.Uniform1i(r.orientationLoc, 1)
gl.DrawArrays(gl.TRIANGLE_STRIP, 0, 4)
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
return nil
}
开发者ID:pikkpoiss,项目名称:twodee,代码行数:31,代码来源:renderer_glow.go
示例7: Render
// Rendering this LineRender.
func (lr *LineRender) Render() {
// Binding the appropriate information.
gl.BindVertexArray(lr.vao)
gl.BindBuffer(gl.ARRAY_BUFFER, lr.vbo)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, lr.ebo)
gl.UseProgram(lr.shaderProgram)
// Loading up vertex attributes.
vertAttrib := uint32(gl.GetAttribLocation(lr.shaderProgram, gl.Str("vert\x00")))
gl.EnableVertexAttribArray(vertAttrib)
gl.VertexAttribPointer(vertAttrib, 2, gl.FLOAT, false, 2*4, gl.PtrOffset(0))
// Line thickness information.
gl.Uniform1f(
gl.GetUniformLocation(lr.shaderProgram, gl.Str("in_thickness\x00")),
lr.weight)
// Fragment shader color information.
gl.Uniform4f(
gl.GetUniformLocation(lr.shaderProgram, gl.Str("in_color\x00")),
lr.color.Red,
lr.color.Green,
lr.color.Blue,
lr.color.Alpha)
gl.BindFragDataLocation(lr.shaderProgram, 0, gl.Str("out_color\x00"))
// Performing the render.
gl.DrawElements(gl.LINE_STRIP, lr.points, gl.UNSIGNED_INT, nil)
}
开发者ID:crockeo,项目名称:go-tuner,代码行数:31,代码来源:linerender.go
示例8: SetString
func (t *Text) SetString(fs string, argv ...interface{}) {
var indices []rune
if len(argv) == 0 {
indices = []rune(fs)
} else {
indices = []rune(fmt.Sprintf(fs, argv...))
}
if len(indices) == 0 {
return
}
if t.MaxRuneCount > 0 && len(indices) > t.MaxRuneCount+1 {
indices = indices[0:t.MaxRuneCount]
}
t.String = string(indices)
// ebo, vbo data
glfloat_size := int32(4)
t.vboIndexCount = len(indices) * 4 * 2 * 2 // 4 indexes per rune (containing 2 position + 2 texture)
t.eboIndexCount = len(indices) * 6 // each rune requires 6 triangle indices for a quad
t.RuneCount = len(indices)
t.vboData = make([]float32, t.vboIndexCount, t.vboIndexCount)
t.eboData = make([]int32, t.eboIndexCount, t.eboIndexCount)
// generate the basic vbo data and bounding box
t.X1 = Point{0, 0}
t.X2 = Point{0, 0}
t.makeBufferData(indices)
// find the centered position of the bounding box
lowerLeft := t.getLowerLeft()
// reposition the vbo data so that it is centered at (0,0)
// according to the orthographic projection being used
t.setDataPosition(lowerLeft)
if t.IsDebug {
fmt.Printf("bounding box %v %v\n", t.X1, t.X2)
fmt.Printf("lower left\n%v\n", lowerLeft)
fmt.Printf("text vbo data\n%v\n", t.vboData)
fmt.Printf("text ebo data\n%v\n", t.eboData)
}
gl.BindVertexArray(t.vao)
gl.BindBuffer(gl.ARRAY_BUFFER, t.vbo)
gl.BufferData(
gl.ARRAY_BUFFER, int(glfloat_size)*t.vboIndexCount, gl.Ptr(t.vboData), gl.DYNAMIC_DRAW)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, t.ebo)
gl.BufferData(
gl.ELEMENT_ARRAY_BUFFER, int(glfloat_size)*t.eboIndexCount, gl.Ptr(t.eboData), gl.DYNAMIC_DRAW)
gl.BindVertexArray(0)
// not necesssary, but i just want to better understand using vertex arrays
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0)
// SetString can be called at anytime. we want to make sure that if the user is updating the text,
// the previous position will be maintained
t.SetPosition(t.SetPositionX, t.SetPositionY)
}
开发者ID:CubeLite,项目名称:gltext-1,代码行数:59,代码来源:text.go
示例9: Unbind
func (lr *LinesRenderer) Unbind() (err error) {
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0)
if e := gl.GetError(); e != 0 {
err = fmt.Errorf("ERROR: OpenGL error %X", e)
}
return
}
开发者ID:pikkpoiss,项目名称:twodee,代码行数:8,代码来源:renderer_lines.go
示例10: createElementArrayBuffer
func createElementArrayBuffer(data []uint16) uint32 {
var name uint32
gl.GenBuffers(1, &name)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, name)
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, len(data)*2 /* total bytes */, gl.Ptr(data), gl.STATIC_DRAW)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0)
return name
}
开发者ID:btmura,项目名称:blockcillin,代码行数:8,代码来源:gl.go
示例11: createArrayBuffer
func createArrayBuffer(data []float32) uint32 {
var name uint32
gl.GenBuffers(1, &name)
gl.BindBuffer(gl.ARRAY_BUFFER, name)
gl.BufferData(gl.ARRAY_BUFFER, len(data)*4 /* total bytes */, gl.Ptr(data), gl.STATIC_DRAW)
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
return name
}
开发者ID:btmura,项目名称:blockcillin,代码行数:8,代码来源:gl.go
示例12: Delete
func (lr *LinesRenderer) Delete() (err error) {
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0)
gl.DeleteBuffers(1, &lr.buffer)
gl.DeleteBuffers(1, &lr.indexBuffer)
if e := gl.GetError(); e != 0 {
err = fmt.Errorf("ERROR: OpenGL error %X", e)
}
return
}
开发者ID:pikkpoiss,项目名称:twodee,代码行数:10,代码来源:renderer_lines.go
示例13: Draw
func (s *Sprite) Draw() {
s.shader.Use()
s.texture.Bind()
gl.BindVertexArray(s.vao)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, s.ebo)
gl.BindBuffer(gl.ARRAY_BUFFER, s.vbo)
//gl.DrawArrays(gl.TRIANGLES, 0, 3)
gl.DrawElements(gl.TRIANGLES, 6, gl.UNSIGNED_INT, gl.PtrOffset(0))
gl.BindVertexArray(0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0)
}
开发者ID:vinzBad,项目名称:grid,代码行数:13,代码来源:sprite.go
示例14: Render
func (renderObject *RenderObject) Render() {
gl.BindVertexArray(renderObject.vao)
gl.BindBuffer(gl.ARRAY_BUFFER, renderObject.vbo)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, renderObject.ebo)
gl.UseProgram(renderObject.shaderProgram)
// Binding the texture.
gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, renderObject.texture)
gl.BindFragDataLocation(renderObject.shaderProgram, 0, gl.Str("outputColor\x00"))
// Drawing the object.
gl.DrawElements(gl.TRIANGLES, 6, gl.UNSIGNED_INT, nil)
}
开发者ID:crockeo,项目名称:go-tuner,代码行数:14,代码来源:renderobject.go
示例15: Draw
func (r *BatchRenderer) Draw(batch *Batch, x, y, rot float32) error {
batch.Texture.Bind()
gl.BindBuffer(gl.ARRAY_BUFFER, batch.Buffer)
gl.EnableVertexAttribArray(r.PositionLoc)
gl.VertexAttribPointer(r.PositionLoc, 3, gl.FLOAT, false, 5*4, gl.PtrOffset(0))
gl.EnableVertexAttribArray(r.TextureLoc)
gl.VertexAttribPointer(r.TextureLoc, 2, gl.FLOAT, false, 5*4, gl.PtrOffset(3*4))
m := mgl32.Translate3D(x, y, 0.0).Mul4(mgl32.HomogRotate3DZ(rot))
gl.UniformMatrix4fv(r.ModelViewLoc, 1, false, &m[0])
gl.Uniform2f(r.TexOffsetLoc, batch.textureOffset.X(), batch.textureOffset.Y())
gl.DrawArrays(gl.TRIANGLES, 0, int32(batch.Count))
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
return nil
}
开发者ID:pikkpoiss,项目名称:twodee,代码行数:14,代码来源:renderer_batch.go
示例16: Draw
func (tr *TextRenderer) Draw(tex *Texture, x, y, scale float32) (err error) {
gl.ActiveTexture(gl.TEXTURE0)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.BindTexture(gl.TEXTURE_2D, tex.Texture)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.Uniform3f(tr.ScaleLoc, float32(tex.Width)*scale, float32(tex.Height)*scale, 1)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.Uniform3f(tr.TransLoc, x, y, 0)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.DrawArrays(gl.TRIANGLE_STRIP, 0, 4)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
return nil
}
开发者ID:pikkpoiss,项目名称:twodee,代码行数:27,代码来源:renderer_text.go
示例17: Unbind
func (tr *TextRenderer) Unbind() error {
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
return nil
}
开发者ID:pikkpoiss,项目名称:twodee,代码行数:7,代码来源:renderer_text.go
示例18: Bind
func (lr *LinesRenderer) Bind() (err error) {
gl.UseProgram(lr.program)
gl.BindBuffer(gl.ARRAY_BUFFER, lr.buffer)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, lr.indexBuffer)
gl.EnableVertexAttribArray(lr.positionLoc)
gl.EnableVertexAttribArray(lr.normalLoc)
gl.EnableVertexAttribArray(lr.miterLoc)
gl.VertexAttribPointer(lr.positionLoc, 2, gl.FLOAT, false, lr.stride, lr.offPosition)
gl.VertexAttribPointer(lr.normalLoc, 2, gl.FLOAT, false, lr.stride, lr.offNormal)
gl.VertexAttribPointer(lr.miterLoc, 1, gl.FLOAT, false, lr.stride, lr.offMiter)
gl.UniformMatrix4fv(lr.projectionLoc, 1, false, &lr.Renderer.Camera.Projection[0])
if e := gl.GetError(); e != 0 {
err = fmt.Errorf("ERROR: OpenGL error %X", e)
}
return
}
开发者ID:pikkpoiss,项目名称:twodee,代码行数:16,代码来源:renderer_lines.go
示例19: Bind
func (tr *TextRenderer) Bind() error {
gl.UseProgram(tr.Program)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.Uniform1i(tr.TextureUnitLoc, 0)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.BindBuffer(gl.ARRAY_BUFFER, tr.VBO)
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.EnableVertexAttribArray(tr.PositionLoc)
gl.VertexAttribPointer(tr.PositionLoc, 3, gl.FLOAT, false, 5*4, gl.PtrOffset(0))
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.EnableVertexAttribArray(tr.TextureLoc)
gl.VertexAttribPointer(tr.TextureLoc, 2, gl.FLOAT, false, 5*4, gl.PtrOffset(3*4))
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
gl.UniformMatrix4fv(tr.ProjectionLoc, 1, false, &tr.Renderer.Camera.Projection[0])
if e := gl.GetError(); e != 0 {
return fmt.Errorf("ERROR: %X", e)
}
return nil
}
开发者ID:pikkpoiss,项目名称:twodee,代码行数:29,代码来源:renderer_text.go
示例20: customLandscapeBinder
func customLandscapeBinder(renderer fizzle.Renderer, r *fizzle.Renderable, shader *fizzle.RenderShader) {
shaderCombo1 := shader.GetAttribLocation("VERTEX_COLOR")
if shaderCombo1 >= 0 {
gl.BindBuffer(gl.ARRAY_BUFFER, r.Core.ComboVBO1)
gl.EnableVertexAttribArray(uint32(shaderCombo1))
gl.VertexAttribPointer(uint32(shaderCombo1), 3, gl.FLOAT, false, 0, gl.PtrOffset(0))
}
}
开发者ID:tbogdala,项目名称:free,代码行数:8,代码来源:graphics.go
注:本文中的github.com/go-gl/gl/v3/3-core/gl.BindBuffer函数示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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