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//
// SkyBox.m
// GLKit_TD3D
//
// Copyright (c) 2011 71Squared
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
#import "SkyBox.h"
#pragma mark - Private Interface
@interface SkyBox () {
@private
GLKSkyboxEffect *skyBoxEffect;
GLKTextureInfo *skyboxTexture;
}
// Setsup the GLKSkyboxEffect
- (void)initSkyBox;
@end
#pragma mark - Public Implementation
@implementation SkyBox
@synthesize height;
@synthesize width;
@synthesize depth;
@synthesize projectionMatrix;
- (id)initWithProjectionMatrix:(GLKMatrix4)aProjectionMatrix width:(GLfloat)aWidth height:(GLfloat)aHeight depth:(GLfloat)aDepth {
self = [super init];
if (self) {
height = aHeight;
width = aWidth;
depth = aDepth;
projectionMatrix = aProjectionMatrix;
[self initSkyBox];
}
return self;
}
- (void)initSkyBox {
// Setup the skybox
NSString *path = [[NSBundle mainBundle] pathForResource:@"skybox_texture" ofType:@"png"];
NSError *outError;
skyboxTexture = [GLKTextureLoader cubeMapWithContentsOfFile:path options:nil error:&outError];
NSAssert1(!outError, @"Error occured loading skybox texture: %@", outError.localizedDescription);
skyBoxEffect = [[GLKSkyboxEffect alloc] init];
skyBoxEffect.textureCubeMap.name = skyboxTexture.name;
skyBoxEffect.center = GLKVector3Make(0, 0, 0);
skyBoxEffect.xSize = width;
skyBoxEffect.ySize = height;
skyBoxEffect.zSize = depth;
skyBoxEffect.transform.projectionMatrix = projectionMatrix;
}
- (void)renderWithModelMatrix:(GLKMatrix4)aModelMatrix {
skyBoxEffect.transform.modelviewMatrix = aModelMatrix;
[skyBoxEffect prepareToDraw];
[skyBoxEffect draw];
}
@end
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