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sRGB aware framebuffer & colour handling

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a dinosaur
2024-08-16 22:18:44 +10:00
parent 761fb71af3
commit 64db513f62
5 changed files with 214 additions and 19 deletions
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18
Sources/Voxelotl/Renderer.swift
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@ -41,7 +41,9 @@ fileprivate let cubeIndices: [UInt16] = [
]
fileprivate let numFramesInFlight: Int = 3
fileprivate let colorFormat: MTLPixelFormat = .bgra8Unorm_srgb
fileprivate let depthFormat: MTLPixelFormat = .depth16Unorm
fileprivate let clearColor: Color<Double> = .black.mix(.white, 0.1).linear
public class Renderer {
private var device: MTLDevice
@ -86,7 +88,7 @@ public class Renderer {
self.device = device
layer.device = device
layer.pixelFormat = MTLPixelFormat.bgra8Unorm
layer.pixelFormat = colorFormat
// Setup command queue
guard let queue = device.makeCommandQueue() else {
@ -99,7 +101,7 @@ public class Renderer {
passDescription.colorAttachments[0].loadAction = .clear
passDescription.colorAttachments[0].storeAction = .store
passDescription.colorAttachments[0].clearColor = MTLClearColorMake(0.1, 0.1, 0.1, 1.0)
passDescription.colorAttachments[0].clearColor = MTLClearColor(clearColor)
passDescription.depthAttachment.loadAction = .clear
passDescription.depthAttachment.storeAction = .dontCare
passDescription.depthAttachment.clearDepth = 1.0
@ -349,11 +351,7 @@ public class Renderer {
.translate(instance.position) *
matrix_float4x4(instance.rotation) *
.scale(instance.scale),
color: .init(
UInt8(truncating: NSNumber(value: instance.color.x * 0xFF)),
UInt8(truncating: NSNumber(value: instance.color.y * 0xFF)),
UInt8(truncating: NSNumber(value: instance.color.z * 0xFF)),
UInt8(truncating: NSNumber(value: instance.color.w * 0xFF))))
color: SIMD4(Color<UInt8>(instance.color)))
}
// Ideal as long as our uniforms total 4 KB or less
@ -374,6 +372,12 @@ public class Renderer {
}
}
extension MTLClearColor {
init(_ color: Color<Double>) {
self.init(red: color.r, green: color.g, blue: color.b, alpha: color.a)
}
}
enum RendererError: Error {
case initFailure(_ message: String)
case loadFailure(_ message: String)