Golang gl.BlendFunc函数代码示例

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/go-gl/gl.BlendFunc函数的典型用法代码示例。如果您正苦于以下问题：Golang BlendFunc函数的具体用法？Golang BlendFunc怎么用？Golang BlendFunc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BlendFunc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: applyBlendMode

func (r *RenderTarget) applyBlendMode(mode BlendMode) {
	switch mode {
	// glBlendFuncSeparateEXT is used when available to avoid an incorrect alpha value when the target
	// is a RenderTexture -- in this case the alpha value must be written directly to the target buffer

	// Alpha blending
	default:
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

	case BlendAlpha:
		/*if (GLEW_EXT_blend_func_separate) {
		    glBlendFuncSeparateEXT(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA)
		} else {*/
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
		//}

	// Additive blending
	case BlendAdd:
		/*if GLEW_EXT_blend_func_separate {
			gl.BlendFuncSeparateEXT(gl.SRC_ALPHA, gl.ONE, gl.ONE, gl.ONE)
		} else {*/
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE)
		//}

	// Multiplicative blending
	case BlendMultiply:
		gl.BlendFunc(gl.DST_COLOR, gl.ZERO)

	// No blending
	case BlendNone:
		gl.BlendFunc(gl.ONE, gl.ZERO)
	}

	r.lastBlendMode = mode
}

开发者ID:netpoetica，项目名称:gosfml，代码行数:35，代码来源:rendertarget.go

示例2: Rect

func (sg *OpenGLGraphics) Rect(x, y, w, h int, style chart.Style) {
	// log.Panicf("Unimplemented: %s", whoami())
	x, y, w, h = chart.SanitizeRect(x, y, w, h, style.LineWidth)
	defer glh.OpenGLSentinel()()

	//

	glh.With(glh.Attrib{gl.ENABLE_BIT | gl.COLOR_BUFFER_BIT}, func() {
		glh.ColorC(style.FillColor)

		gl.Enable(gl.BLEND)
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

		gl.Begin(gl.QUADS)
		glh.Squarei(x, y, w, h)
		gl.End()
	})

	if style.LineWidth != 0 {
		gl.LineWidth(float32(style.LineWidth))
		//log.Print("Linewidth: ", float32(style.LineWidth))

		glh.With(glh.Attrib{gl.ENABLE_BIT | gl.COLOR_BUFFER_BIT}, func() {
			glh.ColorC(style.LineColor)

			gl.Enable(gl.BLEND)
			gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

			gl.Begin(gl.LINE_LOOP)
			glh.Squarei(x, y, w, h)
			gl.End()
		})
	}

	// linecol := style.LineColor
	// if linecol != "" {
	// 	s = fmt.Sprintf("stroke:%s; ", linecol)
	// } else {
	// 	linecol = "#808080"
	// }
	// s += fmt.Sprintf("stroke-width: %d; ", style.LineWidth)
	// s += fmt.Sprintf("opacity: %.2f; ", 1-style.Alpha)
	// if style.FillColor != "" {
	// 	s += fmt.Sprintf("fill: %s; fill-opacity: %.2f", style.FillColor, 1-style.Alpha)
	// } else {
	// 	s += "fill-opacity: 0"
	// }
	// sg.svg.Rect(x, y, w, h, s)
	// GenericRect(sg, x, y, w, h, style) // TODO
}

开发者ID:go-gl-legacy，项目名称:glchart，代码行数:50，代码来源:openglg.go

示例3: main

func main() {

	if !glfw.Init() {
		log.Fatal("glfw failed to initialize")
	}
	defer glfw.Terminate()

	window, err := glfw.CreateWindow(640, 480, "Deformable", nil, nil)
	if err != nil {
		log.Fatal(err.Error())
	}

	window.MakeContextCurrent()
	glfw.SwapInterval(1)
	window.SetMouseButtonCallback(handleMouseButton)
	window.SetKeyCallback(handleKeyDown)
	window.SetInputMode(glfw.Cursor, glfw.CursorHidden)

	gl.Init()
	initGL()

	i := 16
	m = GenerateMap(1600/i, 1200/i, i)
	for running && !window.ShouldClose() {

		x, y := window.GetCursorPosition()

		if drawing != 0 {
			m.Add(int(x)+int(camera[0]), int(y)+int(camera[1]), drawing, brushSizes[currentBrushSize])
		}

		gl.Clear(gl.COLOR_BUFFER_BIT)
		gl.LoadIdentity()

		gl.PushMatrix()
		gl.PushAttrib(gl.CURRENT_BIT | gl.ENABLE_BIT | gl.LIGHTING_BIT | gl.POLYGON_BIT | gl.LINE_BIT)
		gl.Translatef(-camera[0], -camera[1], 0)
		m.Draw()
		gl.PopAttrib()
		gl.PopMatrix()

		gl.PushAttrib(gl.COLOR_BUFFER_BIT)
		gl.LineWidth(2)
		gl.Enable(gl.BLEND)
		gl.BlendFunc(gl.ONE_MINUS_DST_COLOR, gl.ZERO)
		// gl.Enable(gl.LINE_SMOOTH)
		// gl.Hint(gl.LINE_SMOOTH_HINT, gl.NICEST)

		gl.Translatef(float32(x), float32(y), 0)

		gl.EnableClientState(gl.VERTEX_ARRAY)
		gl.VertexPointer(2, gl.DOUBLE, 0, cursorVerts)
		gl.DrawArrays(gl.LINE_LOOP, 0, 24)
		gl.PopAttrib()

		window.SwapBuffers()
		glfw.PollEvents()
	}

}

开发者ID:sixthgear，项目名称:deformable，代码行数:60，代码来源:main.go

示例4: Draw

func (m *Map) Draw() {

	// gl.Enable(gl.PRIMITIVE_RESTART)
	// gl.PrimitiveRestartIndex(PRIMITIVE_RESTART)
	gl.EnableClientState(gl.VERTEX_ARRAY)
	gl.Translatef(float32(m.gridSize/2), float32(m.gridSize/2), 0)

	if m.renderSmooth {
		gl.Enable(gl.BLEND)
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
		gl.Enable(gl.POLYGON_SMOOTH)
		gl.Hint(gl.POLYGON_SMOOTH_HINT, gl.NICEST)
	}

	if m.renderMode == 1 {
		gl.LineWidth(1)
		gl.VertexPointer(2, gl.FLOAT, 0, m.gridLines)
		gl.Color3f(0.2, 0.2, 0.2)
		gl.DrawArrays(gl.LINES, 0, len(m.gridLines)/2)
		gl.PolygonMode(gl.FRONT_AND_BACK, gl.LINE)
	}

	for _, vl := range m.vl {
		if len(vl.vertices) > 0 {
			gl.VertexPointer(2, gl.FLOAT, 0, vl.vertices)
			gl.Color3f(vl.colors[0], vl.colors[1], vl.colors[2])
			gl.DrawElements(gl.TRIANGLES, len(vl.indices), gl.UNSIGNED_INT, vl.indices)
		}
	}

}

开发者ID:sixthgear，项目名称:deformable，代码行数:31，代码来源:map.go

示例5: initGL

func initGL() (err error) {

	goph, err := os.Open(texturefiles[0])
	if err != nil {
		panic(err)
	}
	defer goph.Close()

	texture, err = createTexture(goph)

	gl.ShadeModel(gl.SMOOTH)
	gl.ClearColor(0, 0, 0, 0.5)
	gl.ClearDepth(1)
	gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE) // 设置混色函数取得半透明效果
	gl.Enable(gl.BLEND)
	gl.Enable(gl.TEXTURE_2D)

	rand.Seed(time.Now().Unix())
	for loop = 0; loop < num; loop++ {
		star[loop].angle = 0.0
		star[loop].dist = float32(loop) / num * 5
		//fmt.Println(loop, star[loop].dist)
		star[loop].r = uint8(rand.Int() % 256)
		star[loop].g = uint8(rand.Int() % 256)
		star[loop].b = uint8(rand.Int() % 256)
	}

	return
}

开发者ID:nzlov，项目名称:gogl，代码行数:30，代码来源:09.go

示例6: lineTo

func (pen *Pen) lineTo(x, y int) {
	gl.Enable(gl.BLEND)
	gl.Enable(gl.POINT_SMOOTH)
	gl.Enable(gl.LINE_SMOOTH)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.Color4f(0.0, 0.0, 0.0, 0.1)
	gl.Begin(gl.LINES)

	var p [2]int
	for i := range pen.points {
		p = pen.points[i]
		if p[0] == 0 && p[1] == 0 {
			continue
		}

		if distanceTo(x, y, p[0], p[1]) < 10.0 {
			gl.Vertex2i(x, y)
			gl.Vertex2i(p[0], p[1])
		}
	}

	gl.End()

	pen.n = (pen.n + 1) % len(pen.points)
	pen.points[pen.n][0] = x
	pen.points[pen.n][1] = y
	pen.moveTo(x, y)
}

开发者ID:jayschwa，项目名称:examples，代码行数:28，代码来源:main.go

示例7: Open

// Opens a new window.
func (c *Controller) Open(win *Window) (err error) {
	c.Win = win
	mode := glfw.Windowed
	if win.Fullscreen {
		mode = glfw.Fullscreen
	}
	if win.Resize == false {
		glfw.OpenWindowHint(glfw.WindowNoResize, 1)
	}
	if err = glfw.OpenWindow(win.Width, win.Height, 0, 0, 0, 0, 0, 0, mode); err != nil {
		return
	}
	gl.Init()
	gl.Enable(gl.TEXTURE_2D)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	v1, v2, v3 := glfw.GLVersion()
	log.Printf("OpenGL version: %v %v %v\n", v1, v2, v3)
	fb_supported := glfw.ExtensionSupported("GL_EXT_framebuffer_object")
	log.Printf("Framebuffer supported: %v\n", fb_supported)
	c.SetClearColor(0, 0, 0, 0)
	if win.VSync == true {
		glfw.SetSwapInterval(1) // Limit to refresh
	}
	glfw.SetWindowTitle(win.Title)
	glfw.SetWindowSizeCallback(func(w, h int) {
		log.Printf("Resizing window to %v, %v\n", w, h)
		c.resize()
	})
	err = c.resize()
	return
}

开发者ID:pikkpoiss，项目名称:ld27，代码行数:33，代码来源:controller.go

示例8: Line

func (sg *OpenGLGraphics) Line(x0, y0, x1, y1 int, style chart.Style) {
	//log.Panicf("Unimplemented: %s", whoami())
	defer glh.OpenGLSentinel()()

	gl.LineWidth(float32(style.LineWidth))

	// TODO: line stipple?
	//sc := chart.Color2RGBA(style.LineColor, uint8(style.Alpha*255))
	//log.Printf("color: %s %d %d %d %d", style.FillColor, sc.R, sc.G, sc.B, sc.A)

	glh.ColorC(style.LineColor)
	//sc := style.LineColor
	//gl.Color4ub(sc.R, sc.G, sc.B, sc.A)
	// TODO: Check this works

	glh.With(glh.Attrib{gl.ENABLE_BIT | gl.COLOR_BUFFER_BIT}, func() {
		gl.Enable(gl.BLEND)
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

		glh.With(glh.Primitive{gl.LINES}, func() {
			gl.Vertex2i(x0, y0)
			gl.Vertex2i(x1, y1)
		})
	})
}

开发者ID:go-gl-legacy，项目名称:glchart，代码行数:25，代码来源:openglg.go

示例9: initGL

// initGL initializes GLFW and OpenGL.
func initGL(c *cpu.CPU, width, height int) error {
	err := glfw.Init()
	if err != nil {
		return err
	}

	glfw.OpenWindowHint(glfw.WindowNoResize, 1)

	err = glfw.OpenWindow(width, height, 8, 8, 8, 8, 8, 0, glfw.Windowed)
	if err != nil {
		glfw.Terminate()
		return err
	}

	glfw.SetWindowTitle("DCPU")
	glfw.SetSwapInterval(1)
	glfw.SetWindowSizeCallback(onResize)

	gl.Init()
	err = glh.CheckGLError()
	if err != nil {
		return err
	}

	gl.Disable(gl.LIGHTING)
	gl.Disable(gl.DEPTH_TEST)
	gl.Enable(gl.TEXTURE_2D)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.ClearColor(0, 0, 0, 1)
	return err
}

开发者ID:jteeuwen，项目名称:dcpu，代码行数:33，代码来源:gl.go

示例10: draw

func (s *System) draw() {
	s.cmds <- func() {
		gl.Enable(gl.DEPTH_TEST)
		gl.Enable(gl.BLEND)
		gl.DepthFunc(gl.LEQUAL)
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
		gl.PolygonMode(gl.FRONT_AND_BACK, gl.FILL)
		//s.shader.Use()
		//s.shader.AssignUniforms(uniforms)
	}
	for _, _ = range s.meshes.layouts {
		s.submit(renderState{})
	}
	for i := range s.buckets {
		list := &s.buckets[i]
		list.sort()
		s.cmds <- list.execute
	}
	return
	/*
		s.cmds <- func() {
			for _, geom := range geoms {
				// gl state
				// texture units
				// uniforms
				//shader.AssignUniforms()
				shader.SetGeometry(&geom)
				shader.Draw()
			}
		}
	*/
}

开发者ID:james4k，项目名称:exp，代码行数:32，代码来源:system.go

示例11: initGL

func initGL() (err error) {
	if err = loadTextures(); err != nil {
		return
	}

	gl.ShadeModel(gl.SMOOTH)
	gl.ClearColor(0, 0, 0, 0)
	gl.ClearDepth(1)
	gl.DepthFunc(gl.LEQUAL)
	gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)
	gl.Enable(gl.TEXTURE_2D)
	gl.Enable(gl.DEPTH_TEST)

	//alpha通道的值为 0.0意味着物体材质是完全透明的。1.0 则意味着完全不透明
	//以全亮度绘制此物体，并对其进行50%的alpha混合(半透明)。
	//当混合选项打开时，此物体将会产生50%的透明效果
	gl.Color4f(1, 1, 1, 0.5)           //全亮度， 50% Alpha 混合
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE) //基于源象素alpha通道值的半透明混合函数

	gl.Lightfv(gl.LIGHT1, gl.AMBIENT, ambient)
	gl.Lightfv(gl.LIGHT1, gl.AMBIENT, diffuse)
	gl.Lightfv(gl.LIGHT1, gl.POSITION, lightpos)
	gl.Enable(gl.LIGHT1)
	return
}

开发者ID:bonly，项目名称:exercise，代码行数:25，代码来源:20110519_nehe08.go

示例12: initGL

// initGL initializes GLFW and OpenGL.
func initGL() error {
	err := glfw.Init()
	if err != nil {
		return err
	}

	err = glfw.OpenWindow(AtlasSize, AtlasSize, 8, 8, 8, 8, 0, 0, glfw.Windowed)
	if err != nil {
		glfw.Terminate()
		return err
	}

	glfw.SetWindowTitle("Texture atlas example")
	glfw.SetSwapInterval(1)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)

	gl.Init()
	if err = glh.CheckGLError(); err != nil {
		return err
	}

	gl.Disable(gl.DEPTH_TEST)
	gl.Disable(gl.LIGHTING)
	gl.Enable(gl.TEXTURE_2D)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.ClearColor(0.2, 0.2, 0.23, 1.0)
	return nil
}

开发者ID:jayschwa，项目名称:examples，代码行数:31，代码来源:main.go

示例13: draw

// OpenGL draw function
func draw() {
	gl.Clear(gl.COLOR_BUFFER_BIT)
	gl.Enable(gl.BLEND)
	gl.Enable(gl.POINT_SMOOTH)
	gl.Enable(gl.LINE_SMOOTH)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.LoadIdentity()

	gl.Begin(gl.LINES)
	gl.Color3f(.2, .2, .2)
	for i := range staticLines {
		x := staticLines[i].GetAsSegment().A.X
		y := staticLines[i].GetAsSegment().A.Y
		gl.Vertex3f(float32(x), float32(y), 0)
		x = staticLines[i].GetAsSegment().B.X
		y = staticLines[i].GetAsSegment().B.Y
		gl.Vertex3f(float32(x), float32(y), 0)
	}
	gl.End()

	gl.Color4f(.3, .3, 1, .8)
	// draw balls
	for _, ball := range balls {
		gl.PushMatrix()
		pos := ball.Body.Position()
		rot := ball.Body.Angle() * chipmunk.DegreeConst
		gl.Translatef(float32(pos.X), float32(pos.Y), 0.0)
		gl.Rotatef(float32(rot), 0, 0, 1)
		drawCircle(float64(ballRadius), 60)
		gl.PopMatrix()
	}
}

开发者ID:niksaak，项目名称:chipmunk，代码行数:33，代码来源:bouncing_balls.go

示例14: Bind

// Binds the framebuffer for drawing.
func (fb *Framebuffer) Bind() {
	fb.Buffer.Bind()
	gl.Viewport(0, 0, fb.Width, fb.Height)
	gl.Enable(gl.TEXTURE_2D)
	gl.Disable(gl.DEPTH_TEST)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.Enable(gl.BLEND)
}

开发者ID:pikkpoiss，项目名称:ld27，代码行数:9，代码来源:framebuffer.go

示例15: main

func main() {
	_ = fmt.Sprint()

	if !glfw.Init() {
		panic("Can't init glfw!")
	}
	defer glfw.Terminate()

	// antialiasing
	//glfw.WindowHint(glfw.Samples, 4)

	window, err = glfw.CreateWindow(WindowWidth, WindowHeight, "Mozaik", nil, nil)
	if err != nil {
		panic(err)
	}
	defer window.Destroy()

	// Ensure thread context
	window.MakeContextCurrent()
	//glfw.SwapInterval(1)

	window.SetKeyCallback(keyCb)
	window.SetMouseButtonCallback(mouseCb)

	gl.Init()
	gl.ClearColor(0.9, 0.85, 0.46, 0.0)
	// useless in 2D
	gl.Disable(gl.DEPTH_TEST)
	// antialiasing
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.Enable(gl.LINE_SMOOTH)

	for i := int32(32); i < 72; i++ {
		font := loadFonts(i)
		defer font.Release()
		fonts = append(fonts, font)
	}

	// Compute window radius
	windowRadius = math.Sqrt(math.Pow(WindowHeight, 2) + math.Pow(WindowWidth, 2))

	// Use window coordinates
	gl.MatrixMode(gl.PROJECTION)
	gl.LoadIdentity()
	gl.Ortho(0, WindowWidth, WindowHeight, 0, 0, 1)
	gl.MatrixMode(gl.MODELVIEW)
	gl.LoadIdentity()

	g = NewGame()

	g.Start()
	go eventLoop(g)
	go renderLoop(g)
	Main()
	g.Stop()
}

开发者ID:remogatto，项目名称:mozaik，代码行数:57，代码来源:main_init.go

示例16: handleText

func handleText(camera *PerspectiveCamera, text *Text) {
	// Material
	material := text.Material()
	program := material.Program()
	if program == nil {
		program = createTextProgram(text)
		material.SetProgram(program)
	}
	program.Use()
	defer program.Unuse()

	if c, ok := material.(Colored); ok {
		if c.Color() != nil {
			program.uniforms["diffuse"].apply(c.Color())
		}
	}

	if t, ok := material.(Textured); ok {
		texture := t.Texture()
		if texture != nil {
			gl.ActiveTexture(gl.TEXTURE0)
			texture.Bind()
			defer texture.Unbind()
			program.uniforms["texture"].apply(texture)
		}
	}

	for _, attribute := range program.attributes {
		attribute.enable()
		defer attribute.disable()
		attribute.bindBuffer()
		defer attribute.unbindBuffer()
		attribute.pointer()
		attribute.bindBuffer()
	}

	vertexAttrib := gl.AttribLocation(0)
	vertexAttrib.EnableArray()
	defer vertexAttrib.DisableArray()
	text.vertexBuffer.Bind(gl.ARRAY_BUFFER)
	defer text.vertexBuffer.Unbind(gl.ARRAY_BUFFER)
	vertexAttrib.AttribPointer(2, gl.FLOAT, false, 0, nil)

	if t, ok := material.(Wireframed); ok {
		if t.Wireframe() {
			gl.PolygonMode(gl.FRONT_AND_BACK, gl.LINE)
		} else {
			gl.PolygonMode(gl.FRONT_AND_BACK, gl.FILL)
		}
	}

	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

	gl.DrawArrays(gl.TRIANGLES, 0, len(text.Geometry().Vertices))
}

开发者ID:nobonobo，项目名称:go-three，代码行数:56，代码来源:renderer.go

示例17: renderInit

func (w *Window) renderInit() {
	//bounds := w.body.Bounds()
	gl.Disable(gl.MULTISAMPLE)
	gl.Enable(gl.DEPTH_TEST)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.PolygonMode(gl.FRONT_AND_BACK, gl.FILL)
	//gl.Viewport(0, 0, bounds.Max.X, bounds.Max.Y)
	gl.ClearDepth(1)
	gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT)
}

开发者ID:james4k，项目名称:exp，代码行数:11，代码来源:render.go

示例18: drawHex

func drawHex(x, y, kind int, alpha float32) {
	if kind == 6 {
		gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.REPLACE)
		starTex.Bind(gl.TEXTURE_2D)
		gl.Begin(gl.QUADS)
		gl.TexCoord2f(0, 0)
		gl.Vertex2i(x, y)
		gl.TexCoord2f(0, 1)
		gl.Vertex2i(x, y+HEX_HEIGHT)
		gl.TexCoord2f(1, 1)
		gl.Vertex2i(x+HEX_WIDTH, y+HEX_HEIGHT)
		gl.TexCoord2f(1, 0)
		gl.Vertex2i(x+HEX_WIDTH, y)
		gl.End()
	} else {
		gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
		var r, g, b float32
		switch kind {
		case 0:
			r = 1
		case 1:
			g = 1
		case 2:
			b = 1
		case 3:
			r = 1
			g = 1
		case 4:
			r = 1
			b = 1
		case 5:
			g = 1 - 222/255
			b = 1
		}
		hexTex.Bind(gl.TEXTURE_2D)
		gl.Begin(gl.QUADS)
		if alpha < 1 {
			gl.Color4f(r, g, b, alpha)
		} else {
			gl.Color3f(r, g, b)
		}
		gl.TexCoord2f(0, 0)
		gl.Vertex2i(x, y)
		gl.TexCoord2f(0, 1)
		gl.Vertex2i(x, y+HEX_HEIGHT)
		gl.TexCoord2f(1, 1)
		gl.Vertex2i(x+HEX_WIDTH, y+HEX_HEIGHT)
		gl.TexCoord2f(1, 0)
		gl.Vertex2i(x+HEX_WIDTH, y)
		gl.End()
	}
}

开发者ID:TheOnly92，项目名称:gexic，代码行数:53，代码来源:main.go

示例19: setupGL

func setupGL(w, h int) {
	gl.Viewport(0, 0, w, h)
	gl.MatrixMode(gl.PROJECTION)
	gl.LoadIdentity()
	gl.Ortho(0, float64(w), float64(h), 0, 0, 1)

	gl.ShadeModel(gl.SMOOTH)
	gl.ClearColor(1, 1, 1, 0)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.Disable(gl.DEPTH_TEST)
	gl.Hint(gl.LINE_SMOOTH_HINT|gl.LINE_SMOOTH_HINT, gl.NICEST)
}

开发者ID:phaikawl，项目名称:gosui，代码行数:13，代码来源:window.go

示例20: glDraw

func (p *Path) glDraw(canv *Canvas) {
	for e := p.Segs.Front(); e != nil; e = e.Next() {
		e.Value.(PathSegment).Draw(canv)
	}

	if GetPt(p.endPoints.Back()).Mathgl().ApproxEqual(
		GetPt(p.endPoints.Front()).Mathgl()) {
		p.endPoints.Remove(p.endPoints.Back())
	}

	if p.endPoints.Len() < 3 {
		return
	}

	gGl.Activate(gGl.TriangleDrawer)

	gl.BlendFunc(gl.ONE_MINUS_DST_ALPHA, gl.ZERO)
	defer gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

	pa := make(p2t.PointArray, 0, p.endPoints.Len())
	for e := p.endPoints.Front(); e != nil; e = e.Next() {
		p := GetPt(e)
		pa = append(pa, &p2t.Point{X: float64(p.X), Y: float64(p.Y)})
	}
	p2t.Init(pa)
	triArr := p2t.Triangulate()
	vertices := make([]float32, 6, 6)
	for _, tri := range triArr {
		for i, triPt := range tri.Point {
			pt := canv.toGLPoint(Pt(triPt.X, triPt.Y))
			vertices[i*2] = pt.X
			vertices[i*2+1] = pt.Y
		}
		gl.BufferData(gl.ARRAY_BUFFER, len(vertices)*4, vertices, gl.STATIC_DRAW)
		gl.DrawArrays(gl.TRIANGLES, 0, 3)
	}
}

开发者ID:rdterner，项目名称:gosgl，代码行数:37，代码来源:gosgl.go

注：本文中的github.com/go-gl/gl.BlendFunc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。