diff options
Diffstat (limited to 'src/rtw/perlin.zig')
| -rw-r--r-- | src/rtw/perlin.zig | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/rtw/perlin.zig b/src/rtw/perlin.zig index c60bb34..39173cd 100644 --- a/src/rtw/perlin.zig +++ b/src/rtw/perlin.zig @@ -53,9 +53,9 @@ pub const Perlin = struct { const v_ = v * v * (3 - 2 * v); const w_ = w * w * (3 - 2 * w); - const i = @floatToInt(i32, @floor(p.x)); - const j = @floatToInt(i32, @floor(p.y)); - const k = @floatToInt(i32, @floor(p.z)); + const i = @as(i32, @intFromFloat(@floor(p.x))); + const j = @as(i32, @intFromFloat(@floor(p.y))); + const k = @as(i32, @intFromFloat(@floor(p.z))); var c: [2][2][2]Vec3 = undefined; @@ -65,9 +65,9 @@ pub const Perlin = struct { while (dj < 2) : (dj += 1) { var dk: usize = 0; while (dk < 2) : (dk += 1) { - const ix = @intCast(usize, i + @intCast(i32, di)) & 255; - const iy = @intCast(usize, j + @intCast(i32, dj)) & 255; - const iz = @intCast(usize, k + @intCast(i32, dk)) & 255; + const ix = @as(usize, @intCast(i + @as(i32, @intCast(di)))) & 255; + const iy = @as(usize, @intCast(j + @as(i32, @intCast(dj)))) & 255; + const iz = @as(usize, @intCast(k + @as(i32, @intCast(dk)))) & 255; c[di][dj][dk] = perlin.randomVec.items[ perlin.permX.items[ix] ^ perlin.permY.items[iy] ^ perlin.permZ.items[iz] ]; @@ -109,9 +109,9 @@ pub const Perlin = struct { while (j < 2) : (j += 1) { var k: usize = 0; while (k < 2) : (k += 1) { - const ti = @intToFloat(f64, i); - const tj = @intToFloat(f64, j); - const tk = @intToFloat(f64, k); + const ti = @as(f64, @floatFromInt(i)); + const tj = @as(f64, @floatFromInt(j)); + const tk = @as(f64, @floatFromInt(k)); const weight = Vec3{ .x = u - ti, .y = v - tj, .z = w - tk }; accum += (ti * u + (1.0 - ti) * (1.0 - u)) * |