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Plug in an MDLCamera in place of hard coded transforms

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This commit is contained in:
Eryn Wells 2018-11-23 08:59:04 -07:00
parent 44b5f46c9a
commit 552864eb09
1 changed files with 8 additions and 2 deletions
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10
Terrain2/Renderer.swift
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@ -48,6 +48,7 @@ class Renderer: NSObject, MTKViewDelegate {
var projectionMatrix: matrix_float4x4 = matrix_float4x4()
var rotation: Float = 0
var camera = MDLCamera()
var terrain: Terrain
var drawLines = true {
@ -110,6 +111,11 @@ class Renderer: NSObject, MTKViewDelegate {
super.init()
camera.nearVisibilityDistance = 0.1
camera.farVisibilityDistance = 100
camera.focalLength = 50
camera.look(at: float3(0), from: float3(0, 2, 8))
populateLights()
populateMaterials()
}
@ -211,11 +217,11 @@ class Renderer: NSObject, MTKViewDelegate {
}
}
geometryUniforms.pointer[0].projectionMatrix = projectionMatrix
geometryUniforms.pointer[0].projectionMatrix = camera.projectionMatrix
let rotationAxis = float3(0, 1, 0)
let modelMatrix = matrix4x4_rotation(radians: rotation, axis: rotationAxis)
let viewMatrix = matrix4x4_translation(0.0, -2.0, -8.0)
let viewMatrix = camera.transform!.matrix.inverse
let modelViewMatrix = simd_mul(viewMatrix, modelMatrix)
geometryUniforms.pointer[0].modelViewMatrix = modelViewMatrix
rotation += 0.003