mirror
/
metal-examples-tutorials
mirror of https://github.com/MetalKit/metal.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

added raytracing

This commit is contained in:
Marius Horga 2018-07-13 22:42:07 -05:00
parent fa63cd009e
commit 8fd17b8d6d
2 changed files with 12 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
raytracing/RayTracing.xcodeproj/project.xcworkspace/xcuserdata/marius.xcuserdatad/UserInterfaceState.xcuserstate generated
View File

Binary file not shown.

22
raytracing/Renderer.swift
View File

@ -99,21 +99,23 @@ class Renderer: NSObject {
func createScene() { func createScene() {
// light source // light source
var transform = translate(tx: 0, ty: 1, tz: 0) * scale(sx: 0.5, sy: 1.98, sz: 0.5) var transform = translate(tx: 0, ty: 1, tz: 0.3) * scale(sx: 0.5, sy: 1.98, sz: 0.5)
createCube(faceMask: .positiveY, color: float3(1), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_LIGHT) createCube(faceMask: .positiveY, color: float3(1), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_LIGHT)
// top, bottom and back walls // top wall
transform = translate(tx: 0, ty: 1, tz: 0) * scale(sx: 2, sy: 2, sz: 2) transform = translate(tx: 0, ty: 1, tz: 0) * scale(sx: 2, sy: 2, sz: 2)
createCube(faceMask: [.negativeY, .positiveY, .negativeZ], color: float3(0.725, 0.71, 0.68), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_GEOMETRY) createCube(faceMask: .positiveY, color: float3(0.02, 0.4, 0.02), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_GEOMETRY)
// bottom and back walls
createCube(faceMask: [.negativeY, .negativeZ], color: float3(1.0), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_GEOMETRY)
// left wall // left wall
createCube(faceMask: .negativeX, color: float3(0.63, 0.065, 0.05), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_GEOMETRY) createCube(faceMask: .negativeX, color: float3(1.0, 0.02, 0.02), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_GEOMETRY)
// right wall // right wall
createCube(faceMask: .positiveX, color: float3(0.14, 0.45, 0.091), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_GEOMETRY) createCube(faceMask: [.positiveX], color: float3(0.02, 0.02, 0.2), transform: transform, inwardNormals: true, triangleMask: TRIANGLE_MASK_GEOMETRY)
// short box // short box
transform = translate(tx: 0.3275, ty: 0.3, tz: 0.3725) * rotate(radians: -0.3, axis: float3(0.0, 1.0, 0.0)) * scale(sx: 0.6, sy: 0.6, sz: 0.6) transform = translate(tx: 0.35, ty: 0.3, tz: 0.3725) * rotate(radians: -0.3, axis: float3(0.0, 1.0, 0.0)) * scale(sx: 0.6, sy: 0.6, sz: 0.6)
createCube(faceMask: .all, color: float3(0.725, 0.71, 0.68), transform: transform, inwardNormals: false, triangleMask: TRIANGLE_MASK_GEOMETRY) createCube(faceMask: .all, color: float3(1.0, 1.0, 0.3), transform: transform, inwardNormals: false, triangleMask: TRIANGLE_MASK_GEOMETRY)
// tall box // tall box
transform = translate(tx: -0.335, ty: 0.6, tz: -0.29) * rotate(radians: 0.3, axis: float3(0.0, 1.0, 0.0)) * scale(sx: 0.6, sy: 1.2, sz: 0.6) transform = translate(tx: -0.4, ty: 0.6, tz: -0.29) * rotate(radians: 0.3, axis: float3(0.0, 1.0, 0.0)) * scale(sx: 0.6, sy: 1.2, sz: 0.6)
createCube(faceMask: .all, color: float3(0.725, 0.71, 0.68), transform: transform, inwardNormals: false, triangleMask: TRIANGLE_MASK_GEOMETRY) createCube(faceMask: .all, color: float3(1.0, 1.0, 0.3), transform: transform, inwardNormals: false, triangleMask: TRIANGLE_MASK_GEOMETRY)
} }
func createBuffers() { func createBuffers() {
@ -157,7 +159,7 @@ class Renderer: NSObject {
uniforms.pointee.light.forward = float3(0.0, -1.0, 0.0) uniforms.pointee.light.forward = float3(0.0, -1.0, 0.0)
uniforms.pointee.light.right = float3(0.25, 0.0, 0.0) uniforms.pointee.light.right = float3(0.25, 0.0, 0.0)
uniforms.pointee.light.up = float3(0.0, 0.0, 0.25) uniforms.pointee.light.up = float3(0.0, 0.0, 0.25)
uniforms.pointee.light.color = float3(4.0, 4.0, 4.0) uniforms.pointee.light.color = float3(12.0)
let fieldOfView = 45.0 * (Float.pi / 180.0) let fieldOfView = 45.0 * (Float.pi / 180.0)
let aspectRatio = Float(size.width) / Float(size.height) let aspectRatio = Float(size.width) / Float(size.height)