Golang gl21.Float函数代码示例

OStack程序员社区-中国程序员成长平台 › 门户 › 编程› Go›Go教程

原作者: [db:作者] 来自: [db:来源] 收藏邀请

本文整理汇总了Golang中github.com/chsc/gogl/gl21.Float函数的典型用法代码示例。如果您正苦于以下问题：Golang Float函数的具体用法？Golang Float怎么用？Golang Float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Float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: NewSystem

// Creates a new system using (temorarily) hard-coded constants
func NewSystem(X, Y int) System {
	numStars := 1
	numPlanets := rand.Int() % 12

	// Make the slice of Planet

	planets := make([]*data.Planet, numPlanets+1)

	// TODO get rid of hard coded constants
	for i := 0; i <= numPlanets; i++ {
		orbitSizeX := rand.Float64()*4000 + 2000
		orbitSizeY := rand.Float64()*4000 + 2000
		orbitSpeed := rand.Float64() / ((orbitSizeX + orbitSizeY) / 10)

		size := gl.Float(rand.Float64() * 100)

		planets[i] = &data.Planet{data.GameObject{PlanetTextures[0], 0, 0, size, size, 0},
			orbitSizeX, orbitSizeY, orbitSpeed, float64(X), float64(Y)}
	}

	// Make the slice of Stars for each system
	stars := make([]*data.Star, numStars+1)

	for i := 0; i <= numStars; i++ {
		stars[i] = &data.Star{data.GameObject{PlanetTextures[0], gl.Float(X), gl.Float(Y), gl.Float(X + 300), gl.Float(Y + 300), 0}}
	}

	return System{X, Y, numStars, numPlanets, planets, stars}
}

开发者ID:kelly-ry4n，项目名称:glGalaxy，代码行数:30，代码来源:universe.go

示例2: Cylinder

func Cylinder(r, h gl.Float, slices int, hollow, solid bool) {
	res := 2 * math.Pi / float64(slices)
	mode := gl.LINE_LOOP
	if solid {
		mode = gl.QUADS
	}
	gl.Begin(gl.Enum(mode))
	for a := 0.0; a < 2*math.Pi; a += res {
		gl.Normal3f(gl.Float(math.Cos(a)), gl.Float(math.Sin(a)), 0)
		gl.Vertex3f(r*gl.Float(math.Cos(a)), r*gl.Float(math.Sin(a)), 0)
		gl.Vertex3f(r*gl.Float(math.Cos(a)), r*gl.Float(math.Sin(a)), h)
		a += res
		gl.Vertex3f(r*gl.Float(math.Cos(a)), r*gl.Float(math.Sin(a)), h)
		gl.Vertex3f(r*gl.Float(math.Cos(a)), r*gl.Float(math.Sin(a)), 0)
	}
	gl.End()
	if !hollow {
		// X Y plane
		if h < 0 {
			gl.Normal3f(0, 0, 1)
		} else {
			gl.Normal3f(0, 0, -1)
		}
		Circle(r, slices, solid)
		// Top (or bottom)
		if h < 0 {
			gl.Normal3f(0, 0, -1)
		} else {
			gl.Normal3f(0, 0, 1)
		}
		gl.Translatef(0, 0, h)
		Circle(r, slices, solid)
	}
}

开发者ID:knickers，项目名称:GOpenGL，代码行数:34，代码来源:shapes.go

示例3: drawMatrix

func drawMatrix(m *[][]Point, xby, yby gl.Float) {
	for x, row := range *m {
		for y, p := range row {
			UseColor(PointColor(p))
			// fmt.Println(p, PointColor(p))
			// gl.Color4f(1, 0, 0, 1)
			gl.Vertex2f(gl.Float(x)*xby, gl.Float(y)*yby)
		}
	}
}

开发者ID:jaredly，项目名称:rocks，代码行数:10，代码来源:game.go

示例4: PlanetOrbit

/* Updates o's position using its movement function.

The movemet function looks something like
	(x,y) = (f(t),g(t)) where for elliptic orbits

	f = Acos(t)
	g = Bsin(t)
*/
func PlanetOrbit(o *data.Planet, t float64) {
	A := o.OrbitParam1
	B := o.OrbitParam2
	C := o.OrbitParam3

	x0 := o.OrbitParam4
	y0 := o.OrbitParam5

	o.AbsMove(gl.Float(A*math.Sin(t*C)+x0), gl.Float(B*math.Cos(t*C)+y0))
}

开发者ID:kelly-ry4n，项目名称:glGalaxy，代码行数:18，代码来源:simpleai.go

示例5: SetUniform4F

func SetUniform4F(shader, variable string, vs []float32) error {
	prog, ok := shader_progs[shader]
	if !ok {
		return shaderError(fmt.Sprintf("Tried to set a uniform in an unknown shader '%s'", shader))
	}
	bvariable := []byte(fmt.Sprintf("%s\x00", variable))
	loc := gl.GetUniformLocation(prog, (*gl.Char)(unsafe.Pointer(&bvariable[0])))
	gl.Uniform4f(loc, gl.Float(vs[0]), gl.Float(vs[1]), gl.Float(vs[2]), gl.Float(vs[3]))
	return nil
}

开发者ID:dgthunder，项目名称:glop，代码行数:10，代码来源:shader.go

示例6: SetUniformV2

func SetUniformV2(shader, variable string, v linear.Vec2) {
	prog, ok := shader_progs[shader]
	if !ok {
		if !warned_names[shader] {
			Warn().Printf("Tried to set a uniform in an unknown shader '%s'", shader)
			warned_names[shader] = true
		}
		return
	}
	bvariable := []byte(fmt.Sprintf("%s\x00", variable))
	loc := gl.GetUniformLocation(prog, (*gl.Char)(unsafe.Pointer(&bvariable[0])))
	gl.Uniform2f(loc, gl.Float(v.X), gl.Float(v.Y))
}

开发者ID:runningwild，项目名称:jota，代码行数:13，代码来源:shaders.go

示例7: SetVariable4f

// SetVariable4f sets a specified variable to the four supplied integers to
// be passed into an effect.
func (effect *Effect) SetVariable4f(variable string, val1 float32, val2 float32, val3 float32, val4 float32) error {

	var currEffect gl.Int
	gl.GetIntegerv(gl.CURRENT_PROGRAM, &currEffect)
	if gl.Uint(currEffect) != effect.program {
		return errors.New("effect is not currently in use")
	}

	effect.checkUniformVariable(variable)

	gl.Uniform4f(effect.uniforms[variable], gl.Float(val1), gl.Float(val2), gl.Float(val3), gl.Float(val4))
	return nil
}

开发者ID:velovix，项目名称:paunch，代码行数:15，代码来源:effect.go

示例8: Ellipse

func Ellipse(rX, rY gl.Float, slices int, solid bool) {
	mode := gl.LINE_LOOP
	if solid {
		mode = gl.POLYGON
	}
	res := 2 * math.Pi / float64(slices)
	gl.Begin(gl.Enum(mode))
	gl.Vertex2f(0, 0)
	for a := 0.0; a < 2*math.Pi; a += res {
		gl.Vertex2f(rX*gl.Float(math.Cos(a)), rY*gl.Float(math.Sin(a)))
	}
	gl.End()
}

开发者ID:knickers，项目名称:GOpenGL，代码行数:13，代码来源:shapes.go

示例9: Box

func Box(x, y, z float32, solid bool) {
	mode := gl.LINE_LOOP
	if solid {
		mode = gl.QUADS
	}
	X := gl.Float(x) / 2
	Y := gl.Float(y) / 2
	Z := gl.Float(z) / 2
	gl.Begin(gl.Enum(mode))

	gl.Normal3f(0, 0, 1) // Positive Z Face
	gl.Vertex3f(-X, -Y, Z)
	gl.Vertex3f(X, -Y, Z)
	gl.Vertex3f(X, Y, Z)
	gl.Vertex3f(-X, Y, Z)

	gl.Normal3f(0, 0, -1) // Negative Z Face
	gl.Vertex3f(-X, -Y, -Z)
	gl.Vertex3f(-X, Y, -Z)
	gl.Vertex3f(X, Y, -Z)
	gl.Vertex3f(X, -Y, -Z)

	gl.Normal3f(0, 1, 0) // Positive Y Face
	gl.Vertex3f(-X, Y, -Z)
	gl.Vertex3f(-X, Y, Z)
	gl.Vertex3f(X, Y, Z)
	gl.Vertex3f(X, Y, -Z)

	gl.Normal3f(0, -1, 0) // Negative Y Face
	gl.Vertex3f(-X, -Y, -Z)
	gl.Vertex3f(X, -Y, -Z)
	gl.Vertex3f(X, -Y, Z)
	gl.Vertex3f(-X, -Y, Z)

	gl.Normal3f(1, 0, 0) // Positive X Face
	gl.Vertex3f(X, -Y, -Z)
	gl.Vertex3f(X, Y, -Z)
	gl.Vertex3f(X, Y, Z)
	gl.Vertex3f(X, -Y, Z)

	gl.Normal3f(-1, 0, 0) // Negative X Face
	gl.Vertex3f(-X, -Y, -Z)
	gl.Vertex3f(-X, -Y, Z)
	gl.Vertex3f(-X, Y, Z)
	gl.Vertex3f(-X, Y, -Z)

	gl.End()
}

开发者ID:knickers，项目名称:GOpenGL，代码行数:48，代码来源:shapes.go

示例10: drawScene

func drawScene() {
	fps()
	gl.Clear(gl.COLOR_BUFFER_BIT)

	gl.MatrixMode(gl.PROJECTION)
	gl.LoadIdentity()
	if input.Zoom > 0 {
		gl.Ortho(0, gl.Double(float64(*flagSize)/input.Zoom), gl.Double(float64(*flagSize)/input.Zoom), 0, -1, 1.0)
	}

	gl.MatrixMode(gl.MODELVIEW)
	gl.LoadIdentity()
	gl.Translatef(gl.Float(input.TransX*1), gl.Float(input.TransY*1), 0)
	drawGrid()
	drawCells()
}

开发者ID:dskinner，项目名称:cell，代码行数:16，代码来源:main.go

示例11: PointColor

func PointColor(p Point) Color {
	n := gl.Float(float64(p.Intensity) / 10.0)
	/*
	  if p.Color == WHITE {
	    return Color{1.0, 1.0, 1.0, 1}
	  }
	  if p.Color == RED {
	    return Color{1, 1-n, 1-n, 1}
	  }
	  if p.Color == GREEN {
	    return Color{1-n, 1, 1-n, 1}
	  }
	  return Color{1-n, 1-n, 1, 1}
	*/
	if p.Color == WHITE {
		return Color{0, 0, 0, 1}
	}
	if p.Color == RED {
		return Color{n, 0, 0, 1}
	}
	if p.Color == GREEN {
		return Color{0, n, 0, 1}
	}
	return Color{0, 0, n, 1}
}

开发者ID:jaredly，项目名称:rocks，代码行数:25，代码来源:game.go

示例12: factor

func factor(t time.Time, tc0 time.Time, tc1 time.Time) gl.Float {
	num := t.Sub(tc0)
	den := tc1.Sub(tc0)
	res := num.Seconds() / den.Seconds()
	res = math.Max(res, 0)
	res = math.Min(res, 1)
	return gl.Float(res)
}

开发者ID:jacereda，项目名称:webmplay，代码行数:8，代码来源:webmplay.go

示例13: SetUniformV2Array

func SetUniformV2Array(shader, variable string, vs []linear.Vec2) {
	prog, ok := shader_progs[shader]
	if !ok {
		if !warned_names[shader] {
			Warn().Printf("Tried to set a uniform in an unknown shader '%s'", shader)
			warned_names[shader] = true
		}
		return
	}
	bvariable := []byte(fmt.Sprintf("%s\x00", variable))
	loc := gl.GetUniformLocation(prog, (*gl.Char)(unsafe.Pointer(&bvariable[0])))
	var fs []gl.Float
	for i := range vs {
		fs = append(fs, gl.Float(vs[i].X))
		fs = append(fs, gl.Float(vs[i].Y))
	}
	gl.Uniform2fv(loc, gl.Sizei(len(vs)), (*gl.Float)(unsafe.Pointer(&fs[0])))
}

开发者ID:runningwild，项目名称:jota，代码行数:18，代码来源:shaders.go

示例14: toGLFloat

func (m *Matrix3) toGLFloat() Matrix3GLFloat {
	var glm Matrix3GLFloat

	for i := range m {
		glm[i] = gl.Float(m[i])
	}

	return glm
}

开发者ID:drasich，项目名称:ridley，代码行数:9，代码来源:matrix.go

示例15: drawCells

func drawCells() {

	if input.Zoom > 0 {
		gl.PointSize(gl.Float(float64(Width) / float64(*flagSize) * input.Zoom))
	}

	gl.Color4f(1, 1, 1, 1)
	gl.Enable(gl.POINT_SMOOTH)
	gl.Begin(gl.POINTS)

	for i, j := 0, 0; i < (life.Size * life.Size); i, j = i+life.Size, j+1 {
		for k, v := range life.Cells[i : i+life.Size] {
			if v {
				gl.Vertex2f(gl.Float(k), gl.Float(j))
			}
		}
	}

	gl.End()
	gl.Disable(gl.POINT_SMOOTH)
}

开发者ID:dskinner，项目名称:cell，代码行数:21，代码来源:main.go

示例16: UpdateViewpos

// Set the GL modelview matrix to match view position and orientation.
func UpdateViewpos() {
	gl.MatrixMode(gl.MODELVIEW)
	gl.LoadIdentity()
	gl.Translatef(gl.Float(Viewpos[0]), gl.Float(Viewpos[1]), gl.Float(Viewpos[2]))
	gl.Rotatef(gl.Float(Rot[0]*2), 1, 0, 0)
	gl.Rotatef(gl.Float(Rot[1]*2), 0, 1, 0)
	gl.Rotatef(gl.Float(Rot[2]*2), 0, 0, 1)
}

开发者ID:shenyp09，项目名称:mx3，代码行数:9，代码来源:input.go

示例17: drawGrid

func drawGrid() {
	gl.Color4f(0.2, 0.2, 0.2, 1)
	gl.Begin(gl.LINES)
	for i := -0.5; i < Width; i += 1 {
		gl.Vertex2f(gl.Float(-0.5), gl.Float(i))
		gl.Vertex2f(gl.Float(life.Size), gl.Float(i))

		gl.Vertex2f(gl.Float(i), -0.5)
		gl.Vertex2f(gl.Float(i), gl.Float(life.Size))
	}
	gl.End()
}

开发者ID:dskinner，项目名称:cell，代码行数:12，代码来源:main.go

示例18: drawQuad

func drawQuad(x, y, w, h int, u, v, u2, v2 float32) {
	gl.Begin(gl.QUADS)

	gl.TexCoord2f(gl.Float(u), gl.Float(v))
	gl.Vertex2i(gl.Int(x), gl.Int(y))

	gl.TexCoord2f(gl.Float(u2), gl.Float(v))
	gl.Vertex2i(gl.Int(x+w), gl.Int(y))

	gl.TexCoord2f(gl.Float(u2), gl.Float(v2))
	gl.Vertex2i(gl.Int(x+w), gl.Int(y+h))

	gl.TexCoord2f(gl.Float(u), gl.Float(v2))
	gl.Vertex2i(gl.Int(x), gl.Int(y+h))

	gl.End()
}

开发者ID:nsf，项目名称:gomandel，代码行数:17，代码来源:gomandel.go

示例19: renderPts

func renderPts() {
	gl.MatrixMode(gl.MODELVIEW)
	for i := minPt; i <= maxPt; i++ {
		if Pts[i].is == false {
			continue
		}
		pt := &Pts[i]
		gl.PopMatrix()
		gl.PushMatrix()
		gl.Translatef(gl.Float(pt.X), gl.Float(pt.Y), -gl.Float(pt.Z))
		gl.Scalef(gl.Float(pt.R*2), gl.Float(pt.R*2), gl.Float(pt.R*2))
		gl.DrawArrays(gl.QUADS, 0, 24)
	}
}

开发者ID:ReneSac，项目名称:ParticleBench，代码行数:14，代码来源:Go.go

示例20: DrawStarTex

func DrawStarTex(t *data.Star) {

	// Find the center point of the texture to rotate around
	xav := (t.X1 + t.X2) / 2
	yav := (t.Y1 + t.Y2) / 2

	//Translate there, rotate, translate back
	gl.MatrixMode(gl.MODELVIEW)
	gl.Translatef(xav, yav, 0)
	gl.Rotatef(gl.Float(t.Theta), 0, 0, 1)
	gl.Translatef(-xav, -yav, 0)

	//Bind our texture to be drawn by id
	gl.Color3f(1, 1, 1)
	gl.Enable(gl.TEXTURE_2D)
	gl.BindTexture(gl.TEXTURE_2D, t.TexId)

	// Draw a rectangle with the texture stretched to the corners
	gl.Begin(gl.QUADS)

	// Stretch the texture to its 4 corners.
	gl.TexCoord2d(0, 0)
	gl.Vertex2f(t.X1, t.Y1)

	gl.TexCoord2d(0, 1)
	gl.Vertex2f(t.X1, t.Y2)

	gl.TexCoord2d(1, 1)
	gl.Vertex2f(t.X2, t.Y2)

	gl.TexCoord2d(1, 0)
	gl.Vertex2f(t.X2, t.Y1)

	gl.End()

	// Unbind the texture in case something else wants to draw
	gl.Disable(gl.TEXTURE_2D)

	// Reset the matrix
	gl.LoadIdentity()

}

开发者ID:kelly-ry4n，项目名称:glGalaxy，代码行数:42，代码来源:drawtextures.go

注：本文中的github.com/chsc/gogl/gl21.Float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。