func (self *Picker) DrawPlayerItems(t int64) { gl.PushMatrix() gl.LoadIdentity() for i := 0; i < 5; i++ { item := ThePlayer.equippedItems[i] if item != ITEM_NONE { angle := -(float64(i) + 1.5) * math.Pi / 4 gl.LoadIdentity() x := self.x - self.actionItemRadius*float32(math.Sin(angle)) y := self.y + self.actionItemRadius*float32(math.Cos(angle)) gl.Translatef(x, y, 0) gl.Rotatef(360*float32(math.Sin(float64(t)/1e10+float64(i))), 1.0, 0.0, 0.0) gl.Rotatef(360*float32(math.Cos(float64(t)/1e10+float64(i))), 0.0, 1.0, 0.0) gl.Rotatef(360*float32(math.Sin(float64(t)/1e10+float64(i))), 0.0, 0.0, 1.0) gl.Scalef(blockscale, blockscale, blockscale) gVertexBuffer.Reset() TerrainCube(gVertexBuffer, 0, 0, 0, [18]uint16{}, item, FACE_NONE) gVertexBuffer.RenderDirect(false) gl.LoadIdentity() gl.Translatef(x-17*PIXEL_SCALE, y-19*PIXEL_SCALE, 20) consoleFont.Print(fmt.Sprintf("%d", ThePlayer.inventory[item])) } } gl.PopMatrix() }
func drawScene() { gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) gl.LoadIdentity() gl.Translatef(-1.5, 0, -6) gl.Rotatef(trisAngle, 0, 1, 0) gl.Begin(gl.TRIANGLES) gl.Color3f(1, 0, 0) gl.Vertex3f(0, 1, 0) gl.Color3f(0, 1, 0) gl.Vertex3f(-1, -1, 0) gl.Color3f(0, 0, 1) gl.Vertex3f(1, -1, 0) gl.End() gl.LoadIdentity() gl.Translatef(1.5, 0, -6) gl.Rotatef(quadAngle, 1, 0, 0) gl.Color3f(0.5, 0.5, 1.0) gl.Begin(gl.QUADS) gl.Vertex3f(-1, 1, 0) gl.Vertex3f(1, 1, 0) gl.Vertex3f(1, -1, 0) gl.Vertex3f(-1, -1, 0) gl.End() trisAngle += 0.2 quadAngle -= 0.15 glfw.SwapBuffers() }
func main() { var err error if err = glfw.Init(); err != nil { fmt.Fprintf(os.Stderr, "[e] %v\n", err) return } defer glfw.Terminate() // Open window with FSAA samples (if possible). glfw.OpenWindowHint(glfw.FsaaSamples, 4) if err = glfw.OpenWindow(400, 400, 0, 0, 0, 0, 0, 0, glfw.Windowed); err != nil { fmt.Fprintf(os.Stderr, "[e] %v\n", err) return } defer glfw.CloseWindow() glfw.SetWindowTitle("Aliasing Detector") glfw.SetSwapInterval(1) if samples := glfw.WindowParam(glfw.FsaaSamples); samples != 0 { fmt.Fprintf(os.Stdout, "Context reports FSAA is supported with %d samples\n", samples) } else { fmt.Fprintf(os.Stdout, "Context reports FSAA is unsupported\n") } gl.MatrixMode(gl.PROJECTION) glu.Perspective(0, 1, 0, 1) for glfw.WindowParam(glfw.Opened) == 1 { time := float32(glfw.Time()) gl.Clear(gl.COLOR_BUFFER_BIT) gl.LoadIdentity() gl.Translatef(0.5, 0, 0) gl.Rotatef(time, 0, 0, 1) gl.Enable(GL_MULTISAMPLE_ARB) gl.Color3f(1, 1, 1) gl.Rectf(-0.25, -0.25, 0.25, 0.25) gl.LoadIdentity() gl.Translatef(-0.5, 0, 0) gl.Rotatef(time, 0, 0, 1) gl.Disable(GL_MULTISAMPLE_ARB) gl.Color3f(1, 1, 1) gl.Rectf(-0.25, -0.25, 0.25, 0.25) glfw.SwapBuffers() } }
// Here goes our drawing code func drawGLScene() { // Clear the screen and depth buffer gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) // Move left 1.5 units and into the screen 6.0 units. gl.LoadIdentity() gl.Translatef(-1.5, 0.0, -6.0) gl.Rotatef(float32(rtri), 0.0, 1.0, 0.0) // Rotate the triangle on the Y axis gl.Begin(gl.TRIANGLES) // Draw triangles gl.Color3f(1.0, 0.0, 0.0) // Set The Color To Red gl.Vertex3f(0.0, 1.0, 0.0) // top gl.Color3f(0.0, 1.0, 0.0) // Set The Color To Red gl.Vertex3f(-1.0, -1.0, 0.0) // bottom left gl.Color3f(0.0, 0.0, 1.0) // Set The Color To Red gl.Vertex3f(1.0, -1.0, 0.0) // bottom right gl.End() // finish drawing the triangle // Move right 3 units gl.LoadIdentity() gl.Translatef(1.5, 0.0, -6.0) gl.Color3f(0.5, 0.5, 1.0) // Set The Color To Blue One Time Only gl.Rotatef(float32(rquad), 1.0, 0.0, 0.0) // rotate the quad on the X axis gl.Begin(gl.QUADS) // draw quads gl.Vertex3f(-1.0, 1.0, 0.0) // top left gl.Vertex3f(1.0, 1.0, 0.0) // top right gl.Vertex3f(1.0, -1.0, 0.0) // bottom right gl.Vertex3f(-1.0, -1.0, 0.0) // bottom left gl.End() // done drawing the quad // Draw to the screen sdl.GL_SwapBuffers() rtri += 0.2 // Increase The Rotation Variable For The Triangle rquad -= 0.15 // Decrease The Rotation Variable For The Quad // Gather our frames per second frames++ t := sdl.GetTicks() if t-t0 >= 5000 { seconds := (t - t0) / 1000.0 fps := frames / seconds fmt.Println(frames, "frames in", seconds, "seconds =", fps, "FPS") t0 = t frames = 0 } }
func display() { gl.Clear(gl.COLOR_BUFFER_BIT) bitmap_output(40, 35, "This is written in a GLUT bitmap font.", glut.BITMAP_TIMES_ROMAN_24) bitmap_output(30, 210, "More bitmap text is a fixed 9 by 15 font.", glut.BITMAP_9_BY_15) bitmap_output(70, 240, " Helvetica is yet another bitmap font.", glut.BITMAP_HELVETICA_18) gl.MatrixMode(gl.PROJECTION) gl.PushMatrix() gl.LoadIdentity() glu.Perspective(40.0, 1.0, 0.1, 20.0) gl.MatrixMode(gl.MODELVIEW) gl.PushMatrix() glu.LookAt(0.0, 0.0, 4.0, /* eye is at (0,0,30) */ 0.0, 0.0, 0.0, /* center is at (0,0,0) */ 0.0, 1.0, 0.0) /* up is in postivie Y direction */ gl.PushMatrix() gl.Translatef(0, 0, -4) gl.Rotatef(50, 0, 1, 0) stroke_output(-2.5, 1.1, " This is written in a", glut.STROKE_ROMAN) stroke_output(-2.5, 0, " GLUT stroke font.", glut.STROKE_ROMAN) stroke_output(-2.5, -1.1, "using 3D perspective.", glut.STROKE_ROMAN) gl.PopMatrix() gl.MatrixMode(gl.MODELVIEW) gl.PopMatrix() gl.MatrixMode(gl.PROJECTION) gl.PopMatrix() gl.MatrixMode(gl.MODELVIEW) gl.Flush() }
func drawShip(angle float32) { gl.PushMatrix() gl.Translatef(x, y, 0.0) gl.Rotatef(angle, 0.0, 0.0, 1.0) if thrust { gl.Color3f(1.0, 0.0, 0.0) gl.Begin(gl.LINE_STRIP) gl.Vertex2f(-0.75, -0.5) gl.Vertex2f(-1.75, 0) gl.Vertex2f(-0.75, 0.5) gl.End() } gl.Color3f(1.0, 1.0, 0.0) gl.Begin(gl.LINE_LOOP) gl.Vertex2f(2.0, 0.0) gl.Vertex2f(-1.0, -1.0) gl.Vertex2f(-0.5, 0.0) gl.Vertex2f(-1.0, 1.0) gl.Vertex2f(2.0, 0.0) gl.End() if shield { gl.Color3f(0.1, 0.1, 1.0) gl.Begin(gl.LINE_LOOP) for rad := 0.0; rad < 12.0; rad += 1.0 { gl.Vertex2f( float32(2.3*math.Cos(2*float64(rad)/math.Pi)+0.2), float32(2.0*math.Sin(2*float64(rad)/math.Pi))) } gl.End() } gl.PopMatrix() }
func (s *Sprite) Draw(x, y, angle, scale float32, blend bool) { gl.Enable(gl.TEXTURE_2D) gl.Disable(gl.COLOR_MATERIAL) if blend { gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA) gl.Enable(gl.BLEND) } else { gl.Disable(gl.BLEND) gl.BlendFunc(gl.ONE, gl.ZERO) } gl.MatrixMode(gl.MODELVIEW) gl.LoadIdentity() gl.Translatef(x, y, 0) gl.Rotatef(angle*360/(2*math.Pi), 0, 0, 1) gl.Scalef(scale, scale, 1) s.tex.Bind(gl.TEXTURE_2D) gl.Begin(gl.QUADS) gl.Color3f(1, 1, 1) gl.TexCoord2d(0, 0) gl.Vertex3f(-0.5*s.width, -0.5*s.height, 0) gl.TexCoord2d(1, 0) gl.Vertex3f(0.5*s.width, -0.5*s.height, 0) gl.TexCoord2d(1, 1) gl.Vertex3f(0.5*s.width, 0.5*s.height, 0) gl.TexCoord2d(0, 1) gl.Vertex3f(-0.5*s.width, 0.5*s.height, 0) gl.End() gl.Disable(gl.TEXTURE_2D) gl.Disable(gl.BLEND) }
func drawScene() { gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) gl.LoadIdentity() gl.Translatef(0, 0, -20+globalState.MousePos.Z*globalState.speed) gl.Rotatef(globalState.Rot.X, 1, 0, 0) gl.Rotatef(globalState.Rot.Y, 0, 1, 0) gl.Rotatef(globalState.Rot.Z, 0, 0, 1) if globalState.speed != 1 { gl.Scalef(globalState.speed, globalState.speed, globalState.speed) } gl.RenderMode(gl.RENDER) gl.Begin(gl.QUADS) for i, _ := range mesh.Faces { if colors, ok := faceColor[i]; ok { gl.Color3f(colors[0], colors[1], colors[2]) } else { faceColor[i] = make([]float32, 3) faceColor[i][0] = rand.Float32() faceColor[i][1] = rand.Float32() faceColor[i][2] = rand.Float32() gl.Color3f(faceColor[i][0], faceColor[i][1], faceColor[i][2]) } face := &mesh.Faces[i] for j, _ := range face.Vertices { var v *wfobj.Vertex if len(face.Normals) > 0 { v = &face.Normals[j] gl.Normal3f(v.X, v.Y, v.Z) } v = &face.Vertices[j] gl.Vertex3f(v.X, v.Y, v.Z) } } gl.End() gl.Finish() gl.Flush() sdl.GL_SwapBuffers() }
// Here goes our drawing code func drawGLScene(sector Sector) { xtrans := gl.GLfloat(-xpos) ztrans := gl.GLfloat(-zpos) ytrans := gl.GLfloat(-walkbias - 0.25) scenroty := gl.GLfloat(360.0 - yrot) // Clear the screen and depth buffer gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) // reset the view gl.LoadIdentity() // Rotate up and down to look up and down gl.Rotatef(float32(lookupdown), 1.0, 0.0, 0.0) // Rotate depending on direction player is facing gl.Rotatef(float32(scenroty), 0.0, 1.0, 0.0) // translate the scene based on player position gl.Translatef(float32(xtrans), float32(ytrans), float32(ztrans)) gl.BindTexture(gl.TEXTURE_2D, uint(textures[filter])) for _, vertices := range sector { gl.Begin(gl.TRIANGLES) for _, triangle := range *vertices { gl.Normal3f(0.0, 0.0, 1.0) gl.TexCoord2f(float32(triangle.u), float32(triangle.v)) gl.Vertex3f(float32(triangle.x), float32(triangle.y), float32(triangle.z)) } gl.End() } // Draw to the screen sdl.GL_SwapBuffers() // Gather our frames per second frames++ t := sdl.GetTicks() if t-t0 >= 5000 { seconds := (t - t0) / 1000.0 fps := frames / seconds fmt.Println(frames, "frames in", seconds, "seconds =", fps, "FPS") t0 = t frames = 0 } }
func (self *Inventory) DrawItem(t int64, quantity uint16, blockid uint16, r Rect) { gl.PushMatrix() gl.LoadIdentity() const blocksize = float32(0.3) i := 1 gl.Translated(r.x+r.sizex/2, r.y+r.sizey/2+4*PIXEL_SCALE, 0) gl.Rotatef(360*float32(math.Sin(float64(t)/1e10+float64(i))), 1.0, 0.0, 0.0) gl.Rotatef(360*float32(math.Cos(float64(t)/1e10+float64(i))), 0.0, 1.0, 0.0) gl.Rotatef(360*float32(math.Sin(float64(t)/1e10+float64(i))), 0.0, 0.0, 1.0) gl.Scalef(blocksize, blocksize, blocksize) gVertexBuffer.Reset() TerrainCube(gVertexBuffer, Vectori{}, [18]uint16{}, blockid, FACE_NONE) gVertexBuffer.RenderDirect(false) gl.LoadIdentity() gl.Translated(r.x+5*PIXEL_SCALE, r.y+2*PIXEL_SCALE, 0) inventoryItemFont.Print(fmt.Sprintf("%d", quantity)) gl.PopMatrix() }
func (s sprite) render() { gl.Translatef(float32(s.X), float32(s.Y), float32(s.Z)) gl.Rotatef(90.0, 1.0, 0.0, 0.0) s.tex.Bind(gl.TEXTURE_2D) gl.Begin(gl.QUADS) gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-s.width/2.0, -s.height/2.0, 0.0) gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(s.width/2.0, -s.height/2.0, 0.0) gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(s.width/2.0, s.height/2.0, 0.0) gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-s.width/2.0, s.height/2.0, 0.0) gl.End() s.tex.Unbind(gl.TEXTURE_2D) }
func drawScene() { gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) gl.LoadIdentity() gl.Translatef(1.5, 0, -6) gl.Rotatef(quadAngle, 1, 1, 1) gl.Begin(gl.QUADS) for i, _ := range mesh.Faces { gl.Color3f(rand.Float32(), rand.Float32(), rand.Float32()) face := &mesh.Faces[i] for j, _ := range face.Vertices { v := &face.Vertices[j] gl.Vertex3f(v.X, v.Y, v.Z) } } gl.End() quadAngle -= 0.15 glfw.SwapBuffers() }
func reshape(width, height int) { shift, aspect := 0, float64(width)/float64(height) if aspect > 2 { aspect = 2 shift = width/2 - height width = height * 2 } gl.Viewport(shift, 0, width, height) gl.Enable(gl.DEPTH_TEST) gl.Enable(gl.COLOR_MATERIAL) gl.MatrixMode(gl.PROJECTION) gl.LoadIdentity() glu.Perspective(45, aspect, NEAR_Z, FAR_Z) gl.Enable(gl.LIGHTING) gl.Lightfv(gl.LIGHT0, gl.POSITION, []float32{-2, -3, 5, 0}) gl.Lightfv(gl.LIGHT0, gl.AMBIENT, []float32{0.1, 0.1, 0.2, 1}) gl.Lightfv(gl.LIGHT0, gl.DIFFUSE, []float32{0.4, 0.35, 0.2, 1}) gl.Lightfv(gl.LIGHT0, gl.SPECULAR, []float32{1, 1, 1, 1}) gl.Enable(gl.LIGHT0) gl.Rotatef(-30, 1, 0, 0) gl.Translatef(0, 0, -5) gl.MatrixMode(gl.MODELVIEW) gl.LoadIdentity() gl.Lightfv(gl.LIGHT1, gl.AMBIENT, []float32{0, 0, 0, 1}) gl.Lightfv(gl.LIGHT1, gl.DIFFUSE, []float32{0.4, 0.4, 0.4, 1}) gl.Lightfv(gl.LIGHT1, gl.SPECULAR, []float32{1, 1, 1, 1}) gl.Enable(gl.LIGHT1) }
// Here goes our drawing code func drawGLScene() { // Clear the screen and depth buffer gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) // Move left 1.5 units and into the screen 6.0 units. gl.LoadIdentity() gl.Translatef(-1.5, 0.0, -6.0) gl.Rotatef(float32(rtri), 0.0, 1.0, 0.0) // Rotate the triangle on the Y axis gl.Begin(gl.TRIANGLES) // Draw triangles gl.Color3f(1.0, 0.0, 0.0) /* Red */ gl.Vertex3f(0.0, 1.0, 0.0) /* Top Of Triangle (Front) */ gl.Color3f(0.0, 1.0, 0.0) /* Green */ gl.Vertex3f(-1.0, -1.0, 1.0) /* Left Of Triangle (Front) */ gl.Color3f(0.0, 0.0, 1.0) /* Blue */ gl.Vertex3f(1.0, -1.0, 1.0) /* Right Of Triangle (Front) */ gl.Color3f(1.0, 0.0, 0.0) /* Red */ gl.Vertex3f(0.0, 1.0, 0.0) /* Top Of Triangle (Right) */ gl.Color3f(0.0, 0.0, 1.0) /* Blue */ gl.Vertex3f(1.0, -1.0, 1.0) /* Left Of Triangle (Right) */ gl.Color3f(0.0, 1.0, 0.0) /* Green */ gl.Vertex3f(1.0, -1.0, -1.0) /* Right Of Triangle (Right) */ gl.Color3f(1.0, 0.0, 0.0) /* Red */ gl.Vertex3f(0.0, 1.0, 0.0) /* Top Of Triangle (Back) */ gl.Color3f(0.0, 1.0, 0.0) /* Green */ gl.Vertex3f(1.0, -1.0, -1.0) /* Left Of Triangle (Back) */ gl.Color3f(0.0, 0.0, 1.0) /* Blue */ gl.Vertex3f(-1.0, -1.0, -1.0) /* Right Of Triangle (Back) */ gl.Color3f(1.0, 0.0, 0.0) /* Red */ gl.Vertex3f(0.0, 1.0, 0.0) /* Top Of Triangle (Left) */ gl.Color3f(0.0, 0.0, 1.0) /* Blue */ gl.Vertex3f(-1.0, -1.0, -1.0) /* Left Of Triangle (Left) */ gl.Color3f(0.0, 1.0, 0.0) /* Green */ gl.Vertex3f(-1.0, -1.0, 1.0) /* Right Of Triangle (Left) */ gl.End() // finish drawing the triangle // Move right 3 units gl.LoadIdentity() gl.Translatef(1.5, 0.0, -7.0) gl.Rotatef(float32(rquad), 1.0, 1.0, 1.0) // rotate the quad on the X axis gl.Begin(gl.QUADS) // draw quads gl.Color3f(0.0, 1.0, 0.0) // Set The Color To Green gl.Vertex3f(1.0, 1.0, -1.0) // Top Right Of The Quad (Top) gl.Vertex3f(-1.0, 1.0, -1.0) // Top Left Of The Quad (Top) gl.Vertex3f(-1.0, 1.0, 1.0) // Bottom Left Of The Quad (Top) gl.Vertex3f(1.0, 1.0, 1.0) // Bottom Right Of The Quad (Top) gl.Color3f(1.0, 0.5, 0.0) // Set The Color To Orange gl.Vertex3f(1.0, -1.0, 1.0) // Top Right Of The Quad (Bottom) gl.Vertex3f(-1.0, -1.0, 1.0) // Top Left Of The Quad (Bottom) gl.Vertex3f(-1.0, -1.0, -1.0) // Bottom Left Of The Quad (Bottom) gl.Vertex3f(1.0, -1.0, -1.0) // Bottom Right Of The Quad (Bottom) gl.Color3f(1.0, 0.0, 0.0) // Set The Color To Red gl.Vertex3f(1.0, 1.0, 1.0) // Top Right Of The Quad (Front) gl.Vertex3f(-1.0, 1.0, 1.0) // Top Left Of The Quad (Front) gl.Vertex3f(-1.0, -1.0, 1.0) // Bottom Left Of The Quad (Front) gl.Vertex3f(1.0, -1.0, 1.0) // Bottom Right Of The Quad (Front) gl.Color3f(1.0, 1.0, 0.0) // Set The Color To Yellow gl.Vertex3f(1.0, -1.0, -1.0) // Bottom Left Of The Quad (Back) gl.Vertex3f(-1.0, -1.0, -1.0) // Bottom Right Of The Quad (Back) gl.Vertex3f(-1.0, 1.0, -1.0) // Top Right Of The Quad (Back) gl.Vertex3f(1.0, 1.0, -1.0) // Top Left Of The Quad (Back) gl.Color3f(0.0, 0.0, 1.0) // Set The Color To Blue gl.Vertex3f(-1.0, 1.0, 1.0) // Top Right Of The Quad (Left) gl.Vertex3f(-1.0, 1.0, -1.0) // Top Left Of The Quad (Left) gl.Vertex3f(-1.0, -1.0, -1.0) // Bottom Left Of The Quad (Left) gl.Vertex3f(-1.0, -1.0, 1.0) // Bottom Right Of The Quad (Left) gl.Color3f(1.0, 0.0, 1.0) // Set The Color To Violet gl.Vertex3f(1.0, 1.0, -1.0) // Top Right Of The Quad (Right) gl.Vertex3f(1.0, 1.0, 1.0) // Top Left Of The Quad (Right) gl.Vertex3f(1.0, -1.0, 1.0) // Bottom Left Of The Quad (Right) gl.Vertex3f(1.0, -1.0, -1.0) // Bottom Right Of The Quad (Right) gl.End() // done drawing the quad // Draw to the screen sdl.GL_SwapBuffers() rtri += 0.2 // Increase The Rotation Variable For The Triangle rquad -= 0.15 // Decrease The Rotation Variable For The Quad // Gather our frames per second frames++ t := sdl.GetTicks() if t-t0 >= 5000 { seconds := (t - t0) / 1000.0 fps := frames / seconds fmt.Println(frames, "frames in", seconds, "seconds =", fps, "FPS") t0 = t frames = 0 } }
func draw_screen() { angle := float32(0.0) v := [][]float32{ {-1.0, -1.0, 1.0}, {1.0, -1.0, 1.0}, {1.0, 1.0, 1.0}, {-1.0, 1.0, 1.0}, {-1.0, -1.0, -1.0}, {1.0, -1.0, -1.0}, {1.0, 1.0, -1.0}, {-1.0, 1.0, -1.0}} red := []byte{255, 0, 0, 255} green := []byte{0, 255, 0, 255} blue := []byte{0, 0, 255, 255} white := []byte{255, 255, 255, 255} yellow := []byte{0, 255, 255, 255} black := []byte{0, 0, 0, 255} orange := []byte{255, 255, 0, 255} purple := []byte{255, 0, 255, 0} gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) gl.MatrixMode(gl.MODELVIEW) gl.LoadIdentity() gl.Translatef(0.0, 0.0, -5.0) gl.Rotatef(angle, 0.0, 1.0, 0.0) if should_rotate { angle++ if angle > 360.0 { angle = 0.0 } } gl.Begin(gl.TRIANGLES) gl.Color4ubv(red) gl.Vertex3fv(v[0]) gl.Color4ubv(green) gl.Vertex3fv(v[1]) gl.Color4ubv(blue) gl.Vertex3fv(v[2]) gl.Color4ubv(red) gl.Vertex3fv(v[0]) gl.Color4ubv(blue) gl.Vertex3fv(v[2]) gl.Color4ubv(white) gl.Vertex3fv(v[3]) gl.Color4ubv(green) gl.Vertex3fv(v[1]) gl.Color4ubv(black) gl.Vertex3fv(v[5]) gl.Color4ubv(orange) gl.Vertex3fv(v[6]) gl.Color4ubv(green) gl.Vertex3fv(v[1]) gl.Color4ubv(orange) gl.Vertex3fv(v[6]) gl.Color4ubv(blue) gl.Vertex3fv(v[2]) gl.Color4ubv(black) gl.Vertex3fv(v[5]) gl.Color4ubv(yellow) gl.Vertex3fv(v[4]) gl.Color4ubv(purple) gl.Vertex3fv(v[7]) gl.Color4ubv(black) gl.Vertex3fv(v[5]) gl.Color4ubv(purple) gl.Vertex3fv(v[7]) gl.Color4ubv(orange) gl.Vertex3fv(v[6]) gl.Color4ubv(yellow) gl.Vertex3fv(v[4]) gl.Color4ubv(red) gl.Vertex3fv(v[0]) gl.Color4ubv(white) gl.Vertex3fv(v[3]) gl.Color4ubv(yellow) gl.Vertex3fv(v[4]) gl.Color4ubv(white) gl.Vertex3fv(v[3]) gl.Color4ubv(purple) gl.Vertex3fv(v[7]) gl.Color4ubv(white) gl.Vertex3fv(v[3]) gl.Color4ubv(blue) gl.Vertex3fv(v[2]) gl.Color4ubv(orange) gl.Vertex3fv(v[6]) gl.Color4ubv(white) gl.Vertex3fv(v[3]) gl.Color4ubv(orange) gl.Vertex3fv(v[6]) gl.Color4ubv(purple) gl.Vertex3fv(v[7]) gl.Color4ubv(green) gl.Vertex3fv(v[1]) gl.Color4ubv(red) gl.Vertex3fv(v[0]) gl.Color4ubv(yellow) gl.Vertex3fv(v[4]) gl.Color4ubv(green) gl.Vertex3fv(v[1]) gl.Color4ubv(yellow) gl.Vertex3fv(v[4]) gl.Color4ubv(black) gl.Vertex3fv(v[5]) gl.End() sdl.GL_SwapBuffers() }
func drawScene() { gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) gl.LoadIdentity() gl.Translatef(0, 0, z) gl.Rotatef(rotation[0], 1, 0, 0) gl.Rotatef(rotation[1], 0, 1, 0) rotation[0] += speed[0] rotation[1] += speed[1] textures[filter].Bind(gl.TEXTURE_2D) gl.Begin(gl.QUADS) // Front Face gl.Normal3f(0, 0, 1) // Normal Pointing Towards Viewer gl.TexCoord2f(0, 0) gl.Vertex3f(-1, -1, 1) // Point 1 (Front) gl.TexCoord2f(1, 0) gl.Vertex3f(1, -1, 1) // Point 2 (Front) gl.TexCoord2f(1, 1) gl.Vertex3f(1, 1, 1) // Point 3 (Front) gl.TexCoord2f(0, 1) gl.Vertex3f(-1, 1, 1) // Point 4 (Front) // Back Face gl.Normal3f(0, 0, -1) // Normal Pointing Away From Viewer gl.TexCoord2f(1, 0) gl.Vertex3f(-1, -1, -1) // Point 1 (Back) gl.TexCoord2f(1, 1) gl.Vertex3f(-1, 1, -1) // Point 2 (Back) gl.TexCoord2f(0, 1) gl.Vertex3f(1, 1, -1) // Point 3 (Back) gl.TexCoord2f(0, 0) gl.Vertex3f(1, -1, -1) // Point 4 (Back) // Top Face gl.Normal3f(0, 1, 0) // Normal Pointing Up gl.TexCoord2f(0, 1) gl.Vertex3f(-1, 1, -1) // Point 1 (Top) gl.TexCoord2f(0, 0) gl.Vertex3f(-1, 1, 1) // Point 2 (Top) gl.TexCoord2f(1, 0) gl.Vertex3f(1, 1, 1) // Point 3 (Top) gl.TexCoord2f(1, 1) gl.Vertex3f(1, 1, -1) // Point 4 (Top) // Bottom Face gl.Normal3f(0, -1, 0) // Normal Pointing Down gl.TexCoord2f(1, 1) gl.Vertex3f(-1, -1, -1) // Point 1 (Bottom) gl.TexCoord2f(0, 1) gl.Vertex3f(1, -1, -1) // Point 2 (Bottom) gl.TexCoord2f(0, 0) gl.Vertex3f(1, -1, 1) // Point 3 (Bottom) gl.TexCoord2f(1, 0) gl.Vertex3f(-1, -1, 1) // Point 4 (Bottom) // Right face gl.Normal3f(1, 0, 0) // Normal Pointing Right gl.TexCoord2f(1, 0) gl.Vertex3f(1, -1, -1) // Point 1 (Right) gl.TexCoord2f(1, 1) gl.Vertex3f(1, 1, -1) // Point 2 (Right) gl.TexCoord2f(0, 1) gl.Vertex3f(1, 1, 1) // Point 3 (Right) gl.TexCoord2f(0, 0) gl.Vertex3f(1, -1, 1) // Point 4 (Right) // Left Face gl.Normal3f(-1, 0, 0) // Normal Pointing Left gl.TexCoord2f(0, 0) gl.Vertex3f(-1, -1, -1) // Point 1 (Left) gl.TexCoord2f(1, 0) gl.Vertex3f(-1, -1, 1) // Point 2 (Left) gl.TexCoord2f(1, 1) gl.Vertex3f(-1, 1, 1) // Point 3 (Left) gl.TexCoord2f(0, 1) gl.Vertex3f(-1, 1, -1) gl.End() glfw.SwapBuffers() }
// Here goes our drawing code func drawGLScene() { // Clear the screen and depth buffer gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) // Move left 1.5 units and into the screen 6.0 units. gl.LoadIdentity() gl.Translatef(0.0, 0.0, -7.0) gl.Rotatef(float32(xrot), 1.0, 0.0, 0.0) /* Rotate On The X Axis */ gl.Rotatef(float32(yrot), 0.0, 1.0, 0.0) /* Rotate On The Y Axis */ gl.Rotatef(float32(zrot), 0.0, 0.0, 1.0) /* Rotate On The Z Axis */ /* Select Our Texture */ gl.BindTexture(gl.TEXTURE_2D, uint(texture)) gl.Begin(gl.QUADS) // Draw a quad /* Front Face */ gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, -1.0, 1.0) // Bottom left gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, -1.0, 1.0) // Bottom right gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, 1.0, 1.0) // Top right gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, 1.0, 1.0) // Top left /* Back Face */ gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, -1.0, -1.0) // Bottom right gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, 1.0, -1.0) // Top right gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, 1.0, -1.0) // Top left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, -1.0, -1.0) // Bottom left /* Top Face */ gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(-1.0, 1.0, -1.0) // Top left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(-1.0, 1.0, 1.0) // Bottom left gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(1.0, 1.0, 1.0) // Bottom right gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(1.0, 1.0, -1.0) // Top right /* Bottom Face */ gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, -1.0, -1.0) // Top right gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, -1.0, -1.0) // Top left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, -1.0, 1.0) // Bottom left gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, -1.0, 1.0) // Bottom right /* Right face */ gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(1.0, -1.0, -1.0) // Bottom right gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(1.0, 1.0, -1.0) // Top right gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, 1.0, 1.0) // Top left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, -1.0, 1.0) // Bottom left /* Left Face */ gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(-1.0, -1.0, -1.0) // Bottom left gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, -1.0, 1.0) // Bottom right gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, 1.0, 1.0) // Top right gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(-1.0, 1.0, -1.0) // Top left gl.End() // done drawing the quad // Draw to the screen sdl.GL_SwapBuffers() xrot += 0.3 /* X Axis Rotation */ yrot += 0.2 /* Y Axis Rotation */ zrot += 0.4 /* Z Axis Rotation */ // Gather our frames per second frames++ t := sdl.GetTicks() if t-t0 >= 5000 { seconds := (t - t0) / 1000.0 fps := frames / seconds fmt.Println(frames, "frames in", seconds, "seconds =", fps, "FPS") t0 = t frames = 0 } }
func drawScene() { gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) gl.LoadIdentity() gl.Translatef(0, 0, -5) gl.Rotatef(rotation[0], 1, 0, 0) gl.Rotatef(rotation[1], 0, 1, 0) gl.Rotatef(rotation[2], 0, 0, 1) rotation[0] += 0.3 rotation[1] += 0.2 rotation[2] += 0.4 textures[0].Bind(gl.TEXTURE_2D) gl.Begin(gl.QUADS) // Front Face gl.TexCoord2f(0, 0) gl.Vertex3f(-1, -1, 1) // Bottom Left Of The Texture and Quad gl.TexCoord2f(1, 0) gl.Vertex3f(1, -1, 1) // Bottom Right Of The Texture and Quad gl.TexCoord2f(1, 1) gl.Vertex3f(1, 1, 1) // Top Right Of The Texture and Quad gl.TexCoord2f(0, 1) gl.Vertex3f(-1, 1, 1) // Top Left Of The Texture and Quad // Back Face gl.TexCoord2f(1, 0) gl.Vertex3f(-1, -1, -1) // Bottom Right Of The Texture and Quad gl.TexCoord2f(1, 1) gl.Vertex3f(-1, 1, -1) // Top Right Of The Texture and Quad gl.TexCoord2f(0, 1) gl.Vertex3f(1, 1, -1) // Top Left Of The Texture and Quad gl.TexCoord2f(0, 0) gl.Vertex3f(1, -1, -1) // Bottom Left Of The Texture and Quad // Top Face gl.TexCoord2f(0, 1) gl.Vertex3f(-1, 1, -1) // Top Left Of The Texture and Quad gl.TexCoord2f(0, 0) gl.Vertex3f(-1, 1, 1) // Bottom Left Of The Texture and Quad gl.TexCoord2f(1, 0) gl.Vertex3f(1, 1, 1) // Bottom Right Of The Texture and Quad gl.TexCoord2f(1, 1) gl.Vertex3f(1, 1, -1) // Top Right Of The Texture and Quad // Bottom Face gl.TexCoord2f(1, 1) gl.Vertex3f(-1, -1, -1) // Top Right Of The Texture and Quad gl.TexCoord2f(0, 1) gl.Vertex3f(1, -1, -1) // Top Left Of The Texture and Quad gl.TexCoord2f(0, 0) gl.Vertex3f(1, -1, 1) // Bottom Left Of The Texture and Quad gl.TexCoord2f(1, 0) gl.Vertex3f(-1, -1, 1) // Bottom Right Of The Texture and Quad // Right face gl.TexCoord2f(1, 0) gl.Vertex3f(1, -1, -1) // Bottom Right Of The Texture and Quad gl.TexCoord2f(1, 1) gl.Vertex3f(1, 1, -1) // Top Right Of The Texture and Quad gl.TexCoord2f(0, 1) gl.Vertex3f(1, 1, 1) // Top Left Of The Texture and Quad gl.TexCoord2f(0, 0) gl.Vertex3f(1, -1, 1) // Bottom Left Of The Texture and Quad // Left Face gl.TexCoord2f(0, 0) gl.Vertex3f(-1, -1, -1) // Bottom Left Of The Texture and Quad gl.TexCoord2f(1, 0) gl.Vertex3f(-1, -1, 1) // Bottom Right Of The Texture and Quad gl.TexCoord2f(1, 1) gl.Vertex3f(-1, 1, 1) // Top Right Of The Texture and Quad gl.TexCoord2f(0, 1) gl.Vertex3f(-1, 1, -1) // Top Left Of The Texture and Quad gl.End() glfw.SwapBuffers() }
// Here goes our drawing code func drawGLScene() { // Clear the screen and depth buffer gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) // Move left 1.5 units and into the screen 6.0 units. gl.LoadIdentity() gl.Translatef(0.0, 0.0, float32(z)) // translate by z gl.Rotatef(float32(xrot), 1.0, 0.0, 0.0) /* Rotate On The X Axis */ gl.Rotatef(float32(yrot), 0.0, 1.0, 0.0) /* Rotate On The Y Axis */ /* Select Our Texture */ gl.BindTexture(gl.TEXTURE_2D, uint(textures[filter])) // based on filter gl.Begin(gl.QUADS) // Front face gl.Normal3f(0.0, 0.0, 1.0) // Normal Pointing Towards Viewer gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, -1.0, 1.0) // Bottom left gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, -1.0, 1.0) // Bottom right gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, 1.0, 1.0) // Top right gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, 1.0, 1.0) // Top left // Back Face gl.Normal3f(0.0, 0.0, -1.0) // Normal Pointing Away From Viewer gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, -1.0, -1.0) // Bottom right gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, 1.0, -1.0) // Top right gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, 1.0, -1.0) // Top left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, -1.0, -1.0) // Bottom left // Top Face gl.Normal3f(0.0, 1.0, 0.0) // Normal Pointing Up gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(-1.0, 1.0, -1.0) // Top left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(-1.0, 1.0, 1.0) // Bottom left gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(1.0, 1.0, 1.0) // Bottom right gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(1.0, 1.0, -1.0) // Top right // Bottom Face gl.Normal3f(0.0, -1.0, 0.0) // Normal Pointing Down gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, -1.0, -1.0) // Top right gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, -1.0, -1.0) // Top left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, -1.0, 1.0) // Bottom left gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, -1.0, 1.0) // Bottom right // Right face gl.Normal3f(1.0, 0.0, 0.0) // Normal Pointing Right gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(1.0, -1.0, -1.0) // Bottom right gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(1.0, 1.0, -1.0) // Top right gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, 1.0, 1.0) // Top left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, -1.0, 1.0) // Bottom left // Left Face gl.Normal3f(-1.0, 0.0, 0.0) // Normal Pointing Left gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(-1.0, -1.0, -1.0) // Bottom left gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, -1.0, 1.0) // Bottom right gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, 1.0, 1.0) // Top right gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(-1.0, 1.0, -1.0) // Top left gl.End() sdl.GL_SwapBuffers() xrot += xspeed yrot += yspeed // Gather our frames per second frames++ t := sdl.GetTicks() if t-t0 >= 5000 { seconds := (t - t0) / 1000.0 fps := frames / seconds fmt.Println(frames, "frames in", seconds, "seconds =", fps, "FPS") t0 = t frames = 0 } }
// Here goes our drawing code func drawGLScene() { // Clear the screen and depth buffer gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT) gl.BindTexture(gl.TEXTURE_2D, uint(texture)) for loop, star := range stars { gl.LoadIdentity() gl.Translatef(0.0, 0.0, float32(zoom)) gl.Rotatef(float32(tilt), 1.0, 0.0, 0.0) gl.Rotatef(float32(star.angle), 0.0, 1.0, 0.0) gl.Translatef(float32(star.dist), 0.0, 0.0) gl.Rotatef(float32(-star.angle), 0.0, 1.0, 0.0) gl.Rotatef(float32(-tilt), 1.0, 0.0, 0.0) if twinkle { other := stars[(num-loop)-1] gl.Color4ub(uint8(other.r), uint8(other.g), uint8(other.b), 255) gl.Begin(gl.QUADS) gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, -1.0, 0.0) gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, -1.0, 0.0) gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, 1.0, 0.0) gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, 1.0, 0.0) gl.End() } gl.Rotatef(float32(spin), 0.0, 0.0, 1.0) gl.Color4ub(uint8(star.r), uint8(star.g), uint8(star.b), 255) gl.Begin(gl.QUADS) gl.TexCoord2f(0.0, 0.0) gl.Vertex3f(-1.0, -1.0, 0.0) gl.TexCoord2f(1.0, 0.0) gl.Vertex3f(1.0, -1.0, 0.0) gl.TexCoord2f(1.0, 1.0) gl.Vertex3f(1.0, 1.0, 0.0) gl.TexCoord2f(0.0, 1.0) gl.Vertex3f(-1.0, 1.0, 0.0) gl.End() spin += 0.01 star.angle += gl.GLfloat(loop) / gl.GLfloat(num) star.dist -= 0.01 if star.dist < 0.0 { star.dist += 5.0 star.r = gl.GLubyte(rand.Float32() * 255) star.g = gl.GLubyte(rand.Float32() * 255) star.b = gl.GLubyte(rand.Float32() * 255) } } // Draw to the screen sdl.GL_SwapBuffers() // Gather our frames per second frames++ t := sdl.GetTicks() if t-t0 >= 5000 { seconds := (t - t0) / 1000.0 fps := frames / seconds fmt.Println(frames, "frames in", seconds, "seconds =", fps, "FPS") t0 = t frames = 0 } }