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Add marching squares pipeline and configure it

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This commit is contained in:
Eryn Wells 2018-10-11 16:06:05 -07:00
parent a755a4f3de
commit 03923bdd7e
1 changed files with 25 additions and 2 deletions
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27
MetaballsKit/Renderer.swift
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@ -34,7 +34,8 @@ public class Renderer: NSObject, MTKViewDelegate {
let view = delegate.metalView
view.device = device
configure(pixelPipelineWithPixelFormta: view.colorPixelFormat)
configurePixelPipeline(withPixelFormat: view.colorPixelFormat)
configureMarchingSquaresPipeline()
try! delegate.field.setupMetal(withDevice: device)
}
@ -49,6 +50,7 @@ public class Renderer: NSObject, MTKViewDelegate {
private var commandQueue: MTLCommandQueue
private var pixelPipeline: MTLRenderPipelineState?
private var marchingSquaresPipeline: MTLRenderPipelineState?
override public init() {
guard let device = MTLCreateSystemDefaultDevice() else {
@ -69,7 +71,7 @@ public class Renderer: NSObject, MTKViewDelegate {
self.delegate = delegate
}
private func configure(pixelPipelineWithPixelFormta pixelFormat: MTLPixelFormat) {
private func configurePixelPipeline(withPixelFormat pixelFormat: MTLPixelFormat) {
guard let library = library else {
fatalError("Couldn't get Metal library")
}
@ -103,6 +105,27 @@ public class Renderer: NSObject, MTKViewDelegate {
}
}
private func configureMarchingSquaresPipeline() {
guard let library = library else {
fatalError("Couldn't get Metal library")
}
let vertexShader = library.makeFunction(name: "passthroughVertexShader")
let fragmentShader = library.makeFunction(name: "passthroughFragmentShader")
let pipelineDesc = MTLRenderPipelineDescriptor()
pipelineDesc.label = "Marching Squares Pipeline"
pipelineDesc.vertexFunction = vertexShader
pipelineDesc.fragmentFunction = fragmentShader
do {
marchingSquaresPipeline = try device.makeRenderPipelineState(descriptor: pipelineDesc)
} catch let e {
print("Couldn't set up marching squares pipeline! \(e)")
marchingSquaresPipeline = nil
}
}
/// MARK: - MTKViewDelegate
public func mtkView(_ view: MTKView, drawableSizeWillChange size: CGSize) {