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-rw-r--r--src/main.zig65
1 files changed, 33 insertions, 32 deletions
diff --git a/src/main.zig b/src/main.zig
index 19e48b6..060c6ee 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -123,7 +123,7 @@ fn rayColor(r: Ray, background: Color, world: Hittable, rng: Random, depth: u32)
fn generateTwoSpheres(rng: Random, allocator: anytype) !Hittable {
_ = rng;
- var hittable_objects = std.ArrayList(Hittable).init(allocator);
+ var hittable_objects = try std.ArrayList(Hittable).initCapacity(allocator, 2);
const checker = try Texture.makeChecker(allocator, rgb(0.2, 0.3, 0.1), rgb(0.9, 0.9, 0.9));
const mat1 = try allocator.create(Material);
@@ -132,14 +132,14 @@ fn generateTwoSpheres(rng: Random, allocator: anytype) !Hittable {
mat1.* = .{ .diffuse = .{ .albedo = checker } };
mat2.* = .{ .diffuse = .{ .albedo = checker } };
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = -10, .z = 0 }, 10, mat1));
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = 10, .z = 0 }, 10, mat2));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = -10, .z = 0 }, 10, mat1));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = 10, .z = 0 }, 10, mat2));
return .{ .list = .{ .objects = hittable_objects } };
}
fn generateTwoPerlinSpheres(rng: Random, allocator: anytype) !Hittable {
- var hittable_objects = std.ArrayList(Hittable).init(allocator);
+ var hittable_objects = try std.ArrayList(Hittable).initCapacity(allocator, 2);
const perlin = try Texture.makeNoise(allocator, 4.0, rng);
const mat1 = try allocator.create(Material);
@@ -148,14 +148,14 @@ fn generateTwoPerlinSpheres(rng: Random, allocator: anytype) !Hittable {
mat1.* = .{ .diffuse = .{ .albedo = perlin } };
mat2.* = .{ .diffuse = .{ .albedo = perlin } };
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = -1000, .z = 0 }, 1000, mat1));
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = 2, .z = 0 }, 2, mat2));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = -1000, .z = 0 }, 1000, mat1));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = 2, .z = 0 }, 2, mat2));
return .{ .list = .{ .objects = hittable_objects } };
}
fn generateRandomScene(rng: Random, allocator: anytype) !Hittable {
- var hittable_objects = std.ArrayList(Hittable).init(allocator);
+ var hittable_objects = try std.ArrayList(Hittable).initCapacity(allocator, 4);
const mat_ground = try allocator.create(Material);
const mat1 = try allocator.create(Material);
@@ -169,10 +169,10 @@ fn generateRandomScene(rng: Random, allocator: anytype) !Hittable {
mat2.* = .{ .diffuse = .{ .albedo = .{ .solid = .{ .color = rgb(0.4, 0.2, 0.1) } } } };
mat3.* = .{ .metal = .{ .albedo = rgb(0.7, 0.6, 0.5), .fuzz = 0.0 } };
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = -1000, .z = 0 }, 1000, mat_ground));
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = 1, .z = 0 }, 1.0, mat1));
- try hittable_objects.append(makeSphere(.{ .x = -4, .y = 1, .z = 0 }, 1.0, mat2));
- try hittable_objects.append(makeSphere(.{ .x = 4, .y = 1, .z = 0 }, 1.0, mat3));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = -1000, .z = 0 }, 1000, mat_ground));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = 1, .z = 0 }, 1.0, mat1));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = -4, .y = 1, .z = 0 }, 1.0, mat2));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 4, .y = 1, .z = 0 }, 1.0, mat3));
var a: i32 = -3;
while (a < 3) : (a += 1) {
@@ -195,7 +195,7 @@ fn generateRandomScene(rng: Random, allocator: anytype) !Hittable {
const albedo = Color.random01(rng).mulV(Color.random01(rng));
mat_sphere.* = .{ .diffuse = .{ .albedo = .{ .solid = .{ .color = albedo } } } };
const center1 = center.add(.{ .x = 0, .y = randomReal(rng, 0, 0.5), .z = 0 });
- try hittable_objects.append(.{ .movingSphere = .{
+ try hittable_objects.append(allocator, .{ .movingSphere = .{
.center0 = center,
.center1 = center1,
.time0 = 0,
@@ -208,11 +208,11 @@ fn generateRandomScene(rng: Random, allocator: anytype) !Hittable {
const albedo = Color.random(rng, 0.5, 1);
const fuzz = randomReal(rng, 0, 0.5);
mat_sphere.* = .{ .metal = .{ .albedo = albedo, .fuzz = fuzz } };
- try hittable_objects.append(makeSphere(center, 0.2, mat_sphere));
+ try hittable_objects.append(allocator, makeSphere(center, 0.2, mat_sphere));
} else {
// glass
mat_sphere.* = .{ .dielectric = .{ .ir = 1.5 } };
- try hittable_objects.append(makeSphere(center, 0.2, mat_sphere));
+ try hittable_objects.append(allocator, makeSphere(center, 0.2, mat_sphere));
}
}
}
@@ -221,20 +221,20 @@ fn generateRandomScene(rng: Random, allocator: anytype) !Hittable {
}
fn generateEarthScene(allocator: anytype) !Hittable {
- var hittable_objects = std.ArrayList(Hittable).init(allocator);
+ var hittable_objects = try std.ArrayList(Hittable).initCapacity(allocator, 1);
const earth_texture = try Texture.makeImage(allocator, "assets/sekaichizu.png");
const earth_surface = try allocator.create(Material);
earth_surface.* = .{ .diffuse = .{ .albedo = earth_texture } };
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = 0, .z = 0 }, 2, earth_surface));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = 0, .z = 0 }, 2, earth_surface));
return .{ .list = .{ .objects = hittable_objects } };
}
fn generateSimpleLightScene(rng: Random, allocator: anytype) !Hittable {
- var hittable_objects = std.ArrayList(Hittable).init(allocator);
+ var hittable_objects = try std.ArrayList(Hittable).initCapacity(allocator, 3);
const perlin = try Texture.makeNoise(allocator, 4.0, rng);
const mat1 = try allocator.create(Material);
@@ -243,21 +243,21 @@ fn generateSimpleLightScene(rng: Random, allocator: anytype) !Hittable {
mat1.* = .{ .diffuse = .{ .albedo = perlin } };
mat2.* = .{ .diffuse = .{ .albedo = perlin } };
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = -1000, .z = 0 }, 1000, mat1));
- try hittable_objects.append(makeSphere(.{ .x = 0, .y = 2, .z = 0 }, 2, mat2));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = -1000, .z = 0 }, 1000, mat1));
+ try hittable_objects.append(allocator, makeSphere(.{ .x = 0, .y = 2, .z = 0 }, 2, mat2));
const light = Texture.makeSolid(rgb(4, 4, 4));
var mat3 = try Rc(Material).init(allocator);
mat3.get_mut().* = .{ .diffuse_light = .{ .emit = light } };
- try hittable_objects.append(.{ .xyRect = .{ .x0 = 3.0, .x1 = 5.0, .y0 = 1.0, .y1 = 3.0, .k = -2.0, .material = mat3 } });
+ try hittable_objects.append(allocator, .{ .xyRect = .{ .x0 = 3.0, .x1 = 5.0, .y0 = 1.0, .y1 = 3.0, .k = -2.0, .material = mat3 } });
return .{ .list = .{ .objects = hittable_objects } };
}
fn generateCornellBox(allocator: anytype) !Hittable {
- var hittable_objects = std.ArrayList(Hittable).init(allocator);
+ var hittable_objects = try std.ArrayList(Hittable).initCapacity(allocator, 8);
var red = try Rc(Material).init(allocator);
var white = try Rc(Material).init(allocator);
@@ -269,12 +269,12 @@ fn generateCornellBox(allocator: anytype) !Hittable {
green.get_mut().* = .{ .diffuse = .{ .albedo = Texture.makeSolid(rgb(0.12, 0.45, 0.15)) } };
light.get_mut().* = .{ .diffuse_light = .{ .emit = Texture.makeSolid(rgb(15, 15, 15)) } };
- try hittable_objects.append(.{ .yzRect = .{ .y0 = 0, .y1 = 555, .z0 = 0, .z1 = 555, .k = 555, .material = green } });
- try hittable_objects.append(.{ .yzRect = .{ .y0 = 0, .y1 = 555, .z0 = 0, .z1 = 555, .k = 0, .material = red } });
- try hittable_objects.append(.{ .xzRect = .{ .x0 = 213, .x1 = 343, .z0 = 227, .z1 = 332, .k = 554, .material = light } });
- try hittable_objects.append(.{ .xzRect = .{ .x0 = 0, .x1 = 555, .z0 = 0, .z1 = 555, .k = 0, .material = white } });
- try hittable_objects.append(.{ .xzRect = .{ .x0 = 0, .x1 = 555, .z0 = 0, .z1 = 555, .k = 555, .material = white.clone() } });
- try hittable_objects.append(.{ .xyRect = .{ .x0 = 0, .x1 = 555, .y0 = 0, .y1 = 555, .k = 555, .material = white.clone() } });
+ try hittable_objects.append(allocator, .{ .yzRect = .{ .y0 = 0, .y1 = 555, .z0 = 0, .z1 = 555, .k = 555, .material = green } });
+ try hittable_objects.append(allocator, .{ .yzRect = .{ .y0 = 0, .y1 = 555, .z0 = 0, .z1 = 555, .k = 0, .material = red } });
+ try hittable_objects.append(allocator, .{ .xzRect = .{ .x0 = 213, .x1 = 343, .z0 = 227, .z1 = 332, .k = 554, .material = light } });
+ try hittable_objects.append(allocator, .{ .xzRect = .{ .x0 = 0, .x1 = 555, .z0 = 0, .z1 = 555, .k = 0, .material = white } });
+ try hittable_objects.append(allocator, .{ .xzRect = .{ .x0 = 0, .x1 = 555, .z0 = 0, .z1 = 555, .k = 555, .material = white.clone() } });
+ try hittable_objects.append(allocator, .{ .xyRect = .{ .x0 = 0, .x1 = 555, .y0 = 0, .y1 = 555, .k = 555, .material = white.clone() } });
var box1 = try Rc(Hittable).init(allocator);
var box1r = try Rc(Hittable).init(allocator);
@@ -283,11 +283,11 @@ fn generateCornellBox(allocator: anytype) !Hittable {
box1.get_mut().* = try Hittable.makeBox(.{ .x = 0, .y = 0, .z = 0 }, .{ .x = 165, .y = 330, .z = 165 }, white.clone(), allocator);
box1r.get_mut().* = Hittable.makeRotateY(box1, deg2rad(15));
- try hittable_objects.append(Hittable.makeTranslate(box1r, .{ .x = 265, .y = 0, .z = 295 }));
+ try hittable_objects.append(allocator, Hittable.makeTranslate(box1r, .{ .x = 265, .y = 0, .z = 295 }));
box2.get_mut().* = try Hittable.makeBox(.{ .x = 0, .y = 0, .z = 0 }, .{ .x = 165, .y = 165, .z = 165 }, white.clone(), allocator);
box2r.get_mut().* = Hittable.makeRotateY(box2, deg2rad(-18));
- try hittable_objects.append(Hittable.makeTranslate(box2r, .{ .x = 130, .y = 0, .z = 65 }));
+ try hittable_objects.append(allocator, Hittable.makeTranslate(box2r, .{ .x = 130, .y = 0, .z = 65 }));
return .{ .list = .{ .objects = hittable_objects } };
}
@@ -360,7 +360,7 @@ pub fn main() !void {
image_height = 600;
samples_per_pixel = 200;
}
- defer world.deinit();
+ defer world.deinit(allocator);
// Camera
const camera = Camera.init(
@@ -377,7 +377,7 @@ pub fn main() !void {
// Render
var image = try Image.create(allocator, image_width, image_height, PixelFormat.rgb24);
- defer image.deinit();
+ defer image.deinit(allocator);
var j: u32 = 0;
while (j < image_height) : (j += 1) {
@@ -402,5 +402,6 @@ pub fn main() !void {
}
// Output
- try image.writeToFilePath("out.png", .{ .png = .{} });
+ var write_buf: [zigimg.io.DEFAULT_BUFFER_SIZE]u8 = undefined;
+ try image.writeToFilePath(allocator, "out.png", write_buf[0..], .{ .png = .{} });
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-30 23:30:30 +0000