66 lines
2.7 KiB
Swift
Executable File
66 lines
2.7 KiB
Swift
Executable File
/**
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* Copyright (c) 2018 Razeware LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Notwithstanding the foregoing, you may not use, copy, modify, merge, publish,
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* distribute, sublicense, create a derivative work, and/or sell copies of the
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* Software in any work that is designed, intended, or marketed for pedagogical or
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* instructional purposes related to programming, coding, application development,
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* or information technology. Permission for such use, copying, modification,
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* merger, publication, distribution, sublicensing, creation of derivative works,
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* or sale is expressly withheld.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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import MetalKit
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public class Camera {
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public var near: Float = 0.1
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public var far: Float = 100
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public var aspect: Float = 1
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public var fov: Float = radians(fromDegrees: 60)
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public var projectionMatrix: float4x4 {
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return float4x4(projectionFov: fov,
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near: near,
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far: far,
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aspect: aspect)
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}
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public init() {}
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public init(near: Float, far: Float, aspect: Float, fov: Float = 1.135) {
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self.near = near
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self.far = far
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self.aspect = aspect
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self.fov = fov
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}
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public var viewMatrix = float4x4.identity()
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public var transform = Transform() {
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didSet {
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let translateMatrix = float4x4(translation: [-transform.position.x, -transform.position.y, -transform.position.z])
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let translateBackMatrix = float4x4(translation: transform.position)
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let rotateMatrix = float4x4(rotation: transform.rotation)
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let scaleMatrix = float4x4(scaling: transform.scale)
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viewMatrix = translateMatrix * translateBackMatrix * rotateMatrix * translateMatrix * scaleMatrix
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}
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}
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}
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