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added LightingDemoView: 7 lights, 27 texture mapped spheres
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| @import "../../OJGL/GLView.j" | ||
| @import "../../OJGL/GLU.j" | ||
| @import "../../OJGL/GLLight.j" | ||
| @import "../../primitives/Sphere.j" | ||
| @import "../../materials/TextureMaterial.j" | ||
| @import "../../renderers/RendererManager.j" | ||
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| @implementation LightingDemoView : GLView { | ||
| GLContext _glContext; | ||
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| GLLight _blueLight; | ||
| GLLight _redLight; | ||
| GLLight _greenLight; | ||
| GLLight _yellowLight; | ||
| GLLight _cyanLight; | ||
| GLLight _magentaLight; | ||
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| float _lightAngle; | ||
| float _sphereAngle; | ||
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| Array _sceneObjects; | ||
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| BOOL _ready; | ||
| } | ||
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| - (id)initWithFrame:(CGRect)aFrame { | ||
| self = [super initWithFrame:aFrame]; | ||
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| if (self) { | ||
| _ready = NO; | ||
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| // Get the OpenGL Context | ||
| _glContext = [self glContext]; | ||
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| _sceneObjects = []; | ||
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| // Initialise the renderer manager | ||
| [[RendererManager alloc] initWithContext:_glContext]; | ||
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| // build the scene | ||
| [self initScene]; | ||
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| _lightAngle = 0; | ||
| } | ||
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| return self; | ||
| } | ||
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| - (void)initScene { | ||
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| // Prepare (initialise) context | ||
| [_glContext prepare:[0.0, 0.0, 0.0, 1] clearDepth:1.0]; | ||
| [_glContext enableBackfaceCulling]; | ||
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| // Create the spheres with texture materials | ||
| for (var k = 0; k < 3; k++) { | ||
| for (var j = 0; j < 3; j++) { | ||
| for (var i = 0; i < 3; i++) { | ||
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| var textureMaterial = [[TextureMaterial alloc] initWithTextureFile:"Resources/images/mars.jpg" shininess:0.7 precise:YES]; | ||
| var primitive = [[Sphere alloc] initWithGeometry:textureMaterial radius:1.3 longs:25 lats:25]; | ||
| [primitive setTranslation:((i - 1) * 4) y:((j - 1) * 4) z:((k - 1) * 4)]; | ||
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| [primitive prepareGL:_glContext]; | ||
| [[RendererManager getInstance] addPrimitive:primitive]; | ||
| _sceneObjects.push(primitive); | ||
| } | ||
| } | ||
| } | ||
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| // Create the lights | ||
| _blueLight = [[GLLight alloc] initWithHexColor:"0000FF" specularColor:"FFFFFF" attenuation:0.02]; | ||
| [[RendererManager getInstance] addLight:_blueLight]; | ||
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| _redLight = [[GLLight alloc] initWithHexColor:"FF0000" specularColor:"FFFFFF" attenuation:0.02]; | ||
| [[RendererManager getInstance] addLight:_redLight]; | ||
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| _greenLight = [[GLLight alloc] initWithHexColor:"00FF00" specularColor:"FFFFFF" attenuation:0.02]; | ||
| [[RendererManager getInstance] addLight:_greenLight]; | ||
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| _yellowLight = [[GLLight alloc] initWithHexColor:"FFFF00" specularColor:"FFFFFF" attenuation:0.02]; | ||
| [[RendererManager getInstance] addLight:_yellowLight]; | ||
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| _cyanLight = [[GLLight alloc] initWithHexColor:"00FFFF" specularColor:"FFFFFF" attenuation:0.02]; | ||
| [[RendererManager getInstance] addLight:_cyanLight]; | ||
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| _magentaLight = [[GLLight alloc] initWithHexColor:"FF00FF" specularColor:"FFFFFF" attenuation:0.02]; | ||
| [[RendererManager getInstance] addLight:_magentaLight]; | ||
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| var whiteLight = [[GLLight alloc] initWithHexColor:"FFFFFF" specularColor:"FFFFFF" attenuation:0.02]; | ||
| [[RendererManager getInstance] addLight:whiteLight]; | ||
| [whiteLight setPosition:[7, 7, 4]]; | ||
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| // Set the scene ambient color | ||
| [[RendererManager getInstance] setSceneAmbient:"333333"]; | ||
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| // Initialise view and projection matrices | ||
| var lookat = [GLU lookAt:5 eyey:10 eyez:15 centerx:0 centery:0 centerz:0 upx:0 upy:1 upz:0]; | ||
| [[RendererManager getInstance] setViewMatrix:lookat]; | ||
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| var perspective = [GLU perspective:60 aspect:[self width]/[self height] near:1 far:10000]; | ||
| [[RendererManager getInstance] setProjectionMatrix:perspective]; | ||
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| // reshape | ||
| [_glContext reshape:[self width] height:[self height]]; | ||
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| _ready = YES; | ||
| } | ||
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| - (void)drawRect:(CPRect)dirtyRect { | ||
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| // Only render the scene if ready | ||
| if (!_ready) { | ||
| return; | ||
| } | ||
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| // Clear context | ||
| [_glContext clearBuffer]; | ||
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| // Rotate the spheres | ||
| for (var i = 0; i < _sceneObjects.length; i++) { | ||
| [_sceneObjects[i] setRotation:_sphereAngle x:0 y:1 z:0]; | ||
| } | ||
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| // Move the lights | ||
| var blueAngle = _lightAngle; | ||
| var redAngle = -(blueAngle + 120 % 360); | ||
| var greenAngle = redAngle + 12 % 360; | ||
| var yellowAngle = _lightAngle; | ||
| var cyanAngle = -(yellowAngle + 90 % 360); | ||
| var magentaAngle = cyanAngle + 90 % 360; | ||
| [_blueLight setPosition:[7 * Math.sin(blueAngle * Math.PI / 90), 7 * Math.cos(blueAngle * Math.PI / 90), 7 * Math.cos(blueAngle * Math.PI / 180)]]; | ||
| [_redLight setPosition:[7 * Math.sin(redAngle * Math.PI / 145), 7 * Math.cos(redAngle * Math.PI / 145), 7 * Math.cos(redAngle * Math.PI / 180)]]; | ||
| [_greenLight setPosition:[7 * Math.sin(greenAngle * Math.PI / 60), 7 * Math.cos(greenAngle * Math.PI / 60), 7 * Math.cos(greenAngle * Math.PI / 180)]]; | ||
| [_yellowLight setPosition:[7 * Math.sin(yellowAngle * Math.PI / 90), 7 * Math.cos(yellowAngle * Math.PI / 180), 7 * Math.cos(yellowAngle * Math.PI / 90)]]; | ||
| [_cyanLight setPosition:[7 * Math.sin(cyanAngle * Math.PI / 145), 7 * Math.cos(cyanAngle * Math.PI / 180), 7 * Math.cos(cyanAngle * Math.PI / 145)]]; | ||
| [_magentaLight setPosition:[7 * Math.sin(magentaAngle * Math.PI / 60), 7 * Math.cos(magentaAngle * Math.PI / 180), 7 * Math.cos(magentaAngle * Math.PI / 60)]]; | ||
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| // Render the scene | ||
| [[RendererManager getInstance] render]; | ||
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| _sphereAngle = (_sphereAngle + 2) % 360; | ||
| _lightAngle = _lightAngle + 2 % 360; | ||
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| // flush | ||
| [_glContext flush]; | ||
| } | ||
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| @end |
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