altagos.dev
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+31
-10
+27
-6
src/hittable/BVH.zig
+27
-6
src/hittable/BVH.zig
···
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if (object_span == 1) {
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self.hittable = objects[0];
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self.bbox = AABB.initAB(&self.bbox, &objects[0].boundingBox());
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// std.log.info("Node.hittable = .{?}", .{self.hittable});
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return;
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}
···
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self.left = left;
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self.right = right;
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self.combineBbox();
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// std.log.info("Node created", .{});
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}
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···
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return @constCast(&object).hit(r, ray_t);
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}
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var rec: ?HitRecord = null;
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if (self.left) |left| {
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if (left.hit(r, ray_t)) |rec| {
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return rec;
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if (left.hit(r, ray_t)) |res| {
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rec = res;
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}
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}
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if (self.right) |right| {
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-
if (right.hit(r, ray_t)) |rec| {
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return rec;
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const interval = blk: {
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if (rec) |rec_| {
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break :blk IntervalF32.init(ray_t.min, rec_.t);
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}
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break :blk ray_t;
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};
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if (right.hit(r, interval)) |res| {
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rec = res;
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}
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}
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return null;
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return rec;
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}
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pub fn print(self: *Node, depth: usize, side: u8) void {
···
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if (self.left) |left| left.print(depth + 1, 1);
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if (self.right) |right| right.print(depth + 1, 2);
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}
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fn combineBbox(self: *Node) void {
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var left = AABB{};
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var right = AABB{};
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if (self.left) |l| left = l.bbox;
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if (self.right) |r| right = r.bbox;
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self.bbox = AABB.initAB(&left, &right);
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}
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};
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allocator: std.mem.Allocator,
···
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try root.init(allocator, objects.list.items);
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defer @constCast(&objects).deinit();
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root.print(0, 0);
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// root.print(0, 0);
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return .{
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.allocator = allocator,
+1
-1
src/main.zig
+1
-1
src/main.zig
+3
-3
src/scences/in_one_weekend.zig
+3
-3
src/scences/in_one_weekend.zig
···
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const material1 = try allocator.create(Material);
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material1.* = Material.dielectric(1.5);
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try world.add(Hittable.sphere("One", Sphere{ .center = zm.f32x4(0, 1, 0, 0), .radius = 1, .mat = material1 }));
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try world.add(Hittable.sphere("One: Dielectric", Sphere{ .center = zm.f32x4(0, 1, 0, 0), .radius = 1, .mat = material1 }));
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const material2 = try allocator.create(Material);
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material2.* = Material.lambertian(zm.f32x4(0.4, 0.2, 0.1, 1));
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try world.add(Hittable.sphere("Two", Sphere{ .center = zm.f32x4(-4, 1, 0, 0), .radius = 1, .mat = material2 }));
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try world.add(Hittable.sphere("Two: Lambertian", Sphere{ .center = zm.f32x4(-4, 1, 0, 0), .radius = 1, .mat = material2 }));
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const material3 = try allocator.create(Material);
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material3.* = Material.metal(zm.f32x4(0.7, 0.6, 0.5, 1), 0);
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-
try world.add(Hittable.sphere("Three", Sphere{ .center = zm.f32x4(4, 1, 0, 0), .radius = 1, .mat = material3 }));
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try world.add(Hittable.sphere("Three: Metal", Sphere{ .center = zm.f32x4(4, 1, 0, 0), .radius = 1, .mat = material3 }));
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return .{ .allocator = allocator, .world = world };
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}