From bff0f8faf1bd52a6879f14f363ad7e0e8f115fc4 Mon Sep 17 00:00:00 2001
From: Simon Gardling <titaniumtown@gmail.com>
Date: Mon, 5 Apr 2021 12:55:06 -0400
Subject: [PATCH] things

---
 Cargo.lock     | 762 +++++++++++++++++++++++++++++++++++++++++++++++--
 src/grid.rs    |   1 +
 src/imgdata.rs |  20 ++
 src/main.rs    |  12 +-
 src/model.rs   |  27 +-
 5 files changed, 784 insertions(+), 38 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index bfe415e..a519c8d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -14,6 +14,27 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aae1277d39aeec15cb388266ecc24b11c80469deae6067e17a1a7aa9e5c1f234"
 
+[[package]]
+name = "ahash"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "739f4a8db6605981345c5654f3a85b056ce52f37a39d34da03f25bf2151ea16e"
+
+[[package]]
+name = "arrayvec"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
+
+[[package]]
+name = "ash"
+version = "0.31.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c69a8137596e84c22d57f3da1b5de1d4230b1742a710091c85f4d7ce50f00f38"
+dependencies = [
+ "libloading",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -31,12 +52,33 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
+[[package]]
+name = "bit-set"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e11e16035ea35e4e5997b393eacbf6f63983188f7a2ad25bfb13465f5ad59de"
+dependencies = [
+ "bit-vec",
+]
+
+[[package]]
+name = "bit-vec"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "349f9b6a179ed607305526ca489b34ad0a41aed5f7980fa90eb03160b69598fb"
+
 [[package]]
 name = "bitflags"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
+[[package]]
+name = "block"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d8c1fef690941d3e7788d328517591fecc684c084084702d6ff1641e993699a"
+
 [[package]]
 name = "bstr"
 version = "0.2.15"
@@ -76,12 +118,27 @@ dependencies = [
  "rustc_version",
 ]
 
+[[package]]
+name = "cc"
+version = "1.0.67"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3c69b077ad434294d3ce9f1f6143a2a4b89a8a2d54ef813d85003a4fd1137fd"
+dependencies = [
+ "jobserver",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "cfg_aliases"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd16c4719339c4530435d38e511904438d07cce7950afa3718a84ac36c10e89e"
+
 [[package]]
 name = "clap"
 version = "2.33.3"
@@ -93,6 +150,21 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "cocoa-foundation"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ade49b65d560ca58c403a479bb396592b155c0185eada742ee323d1d68d6318"
+dependencies = [
+ "bitflags",
+ "block",
+ "core-foundation",
+ "core-graphics-types",
+ "foreign-types",
+ "libc",
+ "objc",
+]
+
 [[package]]
 name = "color_quant"
 version = "1.1.0"
@@ -114,6 +186,40 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "copyless"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2df960f5d869b2dd8532793fde43eb5427cceb126c929747a26823ab0eeb536"
+
+[[package]]
+name = "core-foundation"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a89e2ae426ea83155dccf10c0fa6b1463ef6d5fcb44cee0b224a408fa640a62"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea221b5284a47e40033bf9b66f35f984ec0ea2931eb03505246cd27a963f981b"
+
+[[package]]
+name = "core-graphics-types"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a68b68b3446082644c91ac778bf50cd4104bfb002b5a6a7c44cca5a2c70788b"
+dependencies = [
+ "bitflags",
+ "core-foundation",
+ "foreign-types",
+ "libc",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.2.1"
@@ -226,6 +332,17 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "d3d12"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0a60cceb22c7c53035f8980524fdc7f17cf49681a3c154e6757d30afbec6ec4"
+dependencies = [
+ "bitflags",
+ "libloading",
+ "winapi",
+]
+
 [[package]]
 name = "deflate"
 version = "0.8.6"
@@ -254,6 +371,36 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d0031c93f37b5d18272de2d932ebff6a7eb32d4bc3bab6751a9af42da7d1a424"
 
+[[package]]
+name = "fixedbitset"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37ab347416e802de484e4d03c7316c48f1ecb56574dfd4a46a80f173ce1de04d"
+
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
+[[package]]
+name = "fxhash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
+dependencies = [
+ "byteorder",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.2"
@@ -265,6 +412,152 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "gfx-auxil"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7b33ecf067f2117668d91c9b0f2e5f223ebd1ffec314caa2f3de27bb580186d"
+dependencies = [
+ "fxhash",
+ "gfx-hal",
+ "spirv_cross",
+]
+
+[[package]]
+name = "gfx-backend-dx11"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f851d03c2e8f117e3702bf41201a4fafa447d5cb1276d5375870ae7573d069dd"
+dependencies = [
+ "arrayvec",
+ "bitflags",
+ "gfx-auxil",
+ "gfx-hal",
+ "libloading",
+ "log",
+ "parking_lot",
+ "range-alloc",
+ "raw-window-handle",
+ "smallvec",
+ "spirv_cross",
+ "thunderdome",
+ "winapi",
+ "wio",
+]
+
+[[package]]
+name = "gfx-backend-dx12"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36dc6ba2b7647e2c2b27b8f74ff5ccdd53c703776588eee5b1de515fdcbd6bc9"
+dependencies = [
+ "arrayvec",
+ "bit-set",
+ "bitflags",
+ "d3d12",
+ "gfx-auxil",
+ "gfx-hal",
+ "log",
+ "parking_lot",
+ "range-alloc",
+ "raw-window-handle",
+ "smallvec",
+ "spirv_cross",
+ "winapi",
+]
+
+[[package]]
+name = "gfx-backend-empty"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f07ef26a65954cfdd7b4c587f485100d1bb3b0bd6a51b02d817d6c87cca7a91"
+dependencies = [
+ "gfx-hal",
+ "log",
+ "raw-window-handle",
+]
+
+[[package]]
+name = "gfx-backend-gl"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c6717c50ab601efe4a669bfb44db615e3888695ac8263222aeaa702642b9fbc2"
+dependencies = [
+ "arrayvec",
+ "bitflags",
+ "gfx-auxil",
+ "gfx-hal",
+ "glow",
+ "js-sys",
+ "khronos-egl",
+ "libloading",
+ "log",
+ "naga",
+ "parking_lot",
+ "raw-window-handle",
+ "spirv_cross",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "gfx-backend-metal"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8dc54b456ece69ef49f8893269ebf24ac70969ed34ba2719c3f3abcc8fbff14e"
+dependencies = [
+ "arrayvec",
+ "bitflags",
+ "block",
+ "cocoa-foundation",
+ "copyless",
+ "foreign-types",
+ "gfx-auxil",
+ "gfx-hal",
+ "log",
+ "metal",
+ "naga",
+ "objc",
+ "parking_lot",
+ "range-alloc",
+ "raw-window-handle",
+ "spirv_cross",
+ "storage-map",
+]
+
+[[package]]
+name = "gfx-backend-vulkan"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dabe88b1a5c91e0f969b441cc57e70364858066e4ba937deeb62065654ef9bd9"
+dependencies = [
+ "arrayvec",
+ "ash",
+ "byteorder",
+ "core-graphics-types",
+ "gfx-hal",
+ "inplace_it",
+ "log",
+ "naga",
+ "objc",
+ "parking_lot",
+ "raw-window-handle",
+ "smallvec",
+ "winapi",
+]
+
+[[package]]
+name = "gfx-hal"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1d9cc8d3b573dda62d0baca4f02e0209786e22c562caff001d77c389008781d"
+dependencies = [
+ "bitflags",
+ "naga",
+ "raw-window-handle",
+ "thiserror",
+]
+
 [[package]]
 name = "gif"
 version = "0.11.2"
@@ -275,12 +568,74 @@ dependencies = [
  "weezl",
 ]
 
+[[package]]
+name = "glow"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "072136d2c3783f3a92f131acb227bc806d3886278e2a4dc1e9990ec89ef9e70b"
+dependencies = [
+ "js-sys",
+ "slotmap",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "gpu-alloc"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e7724b9aef57ea36d70faf54e0ee6265f86e41de16bed8333efdeab5b00e16b"
+dependencies = [
+ "bitflags",
+ "gpu-alloc-types",
+ "tracing",
+]
+
+[[package]]
+name = "gpu-alloc-types"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54804d0d6bc9d7f26db4eaec1ad10def69b599315f487d32c334a80d1efe67a5"
+dependencies = [
+ "bitflags",
+]
+
+[[package]]
+name = "gpu-descriptor"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8a70f1e87a3840ed6a3e99e02c2b861e4dbdf26f0d07e38f42ea5aff46cfce2"
+dependencies = [
+ "bitflags",
+ "gpu-descriptor-types",
+ "hashbrown",
+ "tracing",
+]
+
+[[package]]
+name = "gpu-descriptor-types"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "363e3677e55ad168fef68cf9de3a4a310b53124c5e784c53a1d70e92d23f2126"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "half"
 version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "62aca2aba2d62b4a7f5b33f3712cb1b0692779a56fb510499d5c0aa594daeaf3"
 
+[[package]]
+name = "hashbrown"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
+dependencies = [
+ "ahash",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.18"
@@ -309,6 +664,16 @@ dependencies = [
  "tiff",
 ]
 
+[[package]]
+name = "indexmap"
+version = "1.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "824845a0bf897a9042383849b02c1bc219c2383772efcd5c6f9766fa4b81aef3"
+dependencies = [
+ "autocfg",
+ "hashbrown",
+]
+
 [[package]]
 name = "indicatif"
 version = "0.15.0"
@@ -322,6 +687,21 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "inplace_it"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90953f308a79fe6d62a4643e51f848fbfddcd05975a38e69fdf4ab86a7baf7ca"
+
+[[package]]
+name = "instant"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "itertools"
 version = "0.9.0"
@@ -346,6 +726,15 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
+[[package]]
+name = "jobserver"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c71313ebb9439f74b00d9d2dcec36440beaf57a6aa0623068441dd7cd81a7f2"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "jpeg-decoder"
 version = "0.1.22"
@@ -357,13 +746,23 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.50"
+version = "0.3.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d99f9e3e84b8f67f846ef5b4cbbc3b1c29f6c759fcbce6f01aa0e73d932a24c"
+checksum = "cf3d7383929f7c9c7c2d0fa596f325832df98c3704f2c60553080f7127a58175"
 dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "khronos-egl"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b19cc4a81304db2a0ad69740e83cdc3a9364e3f9bd6d88a87288a4c2deec927b"
+dependencies = [
+ "libc",
+ "libloading",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -376,12 +775,31 @@ version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "56d855069fafbb9b344c0f962150cd2c1187975cb1c22c1522c240d8c4986714"
 
+[[package]]
+name = "libloading"
+version = "0.6.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "351a32417a12d5f7e82c368a66781e307834dae04c6ce0cd4456d52989229883"
+dependencies = [
+ "cfg-if",
+ "winapi",
+]
+
 [[package]]
 name = "libm"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c7d73b3f436185384286bd8098d17ec07c9a7d2388a6599f824d8502b529702a"
 
+[[package]]
+name = "lock_api"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a3c91c24eae6777794bb1997ad98bbb87daf92890acab859f7eaa4320333176"
+dependencies = [
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.14"
@@ -391,6 +809,15 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "malloc_buf"
+version = "0.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62bb907fe88d54d8d9ce32a3cceab4218ed2f6b7d35617cafe9adf84e43919cb"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memchr"
 version = "2.3.4"
@@ -406,6 +833,20 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "metal"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4598d719460ade24c7d91f335daf055bf2a7eec030728ce751814c50cdd6a26c"
+dependencies = [
+ "bitflags",
+ "block",
+ "cocoa-foundation",
+ "foreign-types",
+ "log",
+ "objc",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.3.7"
@@ -425,6 +866,22 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "naga"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05089b2acdf0e6a962cdbf5e328402345a27f59fcde1a59fe97a73e8149d416f"
+dependencies = [
+ "bit-set",
+ "bitflags",
+ "fxhash",
+ "log",
+ "num-traits",
+ "petgraph",
+ "spirv_headers",
+ "thiserror",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.44"
@@ -483,12 +940,66 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "17b02fc0ff9a9e4b35b3342880f48e896ebf69f2967921fe8646bf5b7125956a"
 
+[[package]]
+name = "objc"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "915b1b472bc21c53464d6c8461c9d3af805ba1ef837e1cac254428f4a77177b1"
+dependencies = [
+ "malloc_buf",
+ "objc_exception",
+]
+
+[[package]]
+name = "objc_exception"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad970fb455818ad6cba4c122ad012fae53ae8b4795f86378bce65e4f6bab2ca4"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "oorandom"
 version = "11.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"
 
+[[package]]
+name = "parking_lot"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d7744ac029df22dca6284efe4e898991d28e3085c706c972bcd7da4a27a15eb"
+dependencies = [
+ "instant",
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa7a782938e745763fe6907fc6ba86946d72f49fe7e21de074e08128a99fb018"
+dependencies = [
+ "cfg-if",
+ "instant",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "winapi",
+]
+
+[[package]]
+name = "petgraph"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "467d164a6de56270bd7c4d070df81d07beace25012d5103ced4e9ff08d6afdb7"
+dependencies = [
+ "fixedbitset",
+ "indexmap",
+]
+
 [[package]]
 name = "physarum"
 version = "0.1.0"
@@ -501,8 +1012,15 @@ dependencies = [
  "rand",
  "rand_distr",
  "rayon",
+ "wgpu",
 ]
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc0e1f259c92177c30a4c9d177246edd0a3568b25756a977d0632cf8fa37e905"
+
 [[package]]
 name = "plotters"
 version = "0.3.0"
@@ -617,10 +1135,25 @@ dependencies = [
  "rand_core",
 ]
 
+[[package]]
+name = "range-alloc"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63e935c45e09cc6dcf00d2f0b2d630a58f4095320223d47fc68918722f0538b6"
+
+[[package]]
+name = "raw-window-handle"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a441a7a6c80ad6473bd4b74ec1c9a4c951794285bf941c2126f607c72e48211"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "rayon"
 version = "1.5.0"
-source = "git+https://github.com/rayon-rs/rayon.git#385840e67c98ac9f9121151709e5826c49ca30ea"
+source = "git+https://github.com/rayon-rs/rayon.git#c571f8ffb4f74c8c09b4e1e6d9979b71b4414d07"
 dependencies = [
  "autocfg",
  "crossbeam-deque",
@@ -631,7 +1164,7 @@ dependencies = [
 [[package]]
 name = "rayon-core"
 version = "1.9.0"
-source = "git+https://github.com/rayon-rs/rayon.git#385840e67c98ac9f9121151709e5826c49ca30ea"
+source = "git+https://github.com/rayon-rs/rayon.git#c571f8ffb4f74c8c09b4e1e6d9979b71b4414d07"
 dependencies = [
  "crossbeam-channel",
  "crossbeam-deque",
@@ -640,6 +1173,15 @@ dependencies = [
  "num_cpus",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94341e4e44e24f6b591b59e47a8a027df12e008d73fd5672dbea9cc22f4507d9"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "regex"
 version = "1.4.5"
@@ -754,10 +1296,52 @@ dependencies = [
 ]
 
 [[package]]
-name = "syn"
-version = "1.0.68"
+name = "slotmap"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ce15dd3ed8aa2f8eeac4716d6ef5ab58b6b9256db41d7e1a0224c2788e8fd87"
+checksum = "c46a3482db8f247956e464d783693ece164ca056e6e67563ee5505bdb86452cd"
+
+[[package]]
+name = "smallvec"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
+
+[[package]]
+name = "spirv_cross"
+version = "0.23.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60647fadbf83c4a72f0d7ea67a7ca3a81835cf442b8deae5c134c3e0055b2e14"
+dependencies = [
+ "cc",
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "spirv_headers"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f5b132530b1ac069df335577e3581765995cba5a13995cdbbdbc8fb057c532c"
+dependencies = [
+ "bitflags",
+ "num-traits",
+]
+
+[[package]]
+name = "storage-map"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "418bb14643aa55a7841d5303f72cf512cfb323b8cc221d51580500a1ca75206c"
+dependencies = [
+ "lock_api",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3a1d708c221c5a612956ef9f75b37e454e88d1f7b899fbd3a18d4252012d663"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -783,6 +1367,32 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0f4a65597094d4483ddaed134f409b2cb7c1beccf25201a9f73c719254fa98e"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7765189610d8241a44529806d6fd1f2e0a08734313a35d5b3a556f92b381f3c0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "thunderdome"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7572415bd688d401c52f6e36f4c8e805b9ae1622619303b9fa835d531db0acae"
+
 [[package]]
 name = "tiff"
 version = "0.6.1"
@@ -804,6 +1414,38 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "tracing"
+version = "0.1.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "01ebdc2bb4498ab1ab5f5b73c5803825e60199229ccba0698170e3be0e7f959f"
+dependencies = [
+ "cfg-if",
+ "pin-project-lite",
+ "tracing-attributes",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-attributes"
+version = "0.1.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c42e6fa53307c8a17e4ccd4dc81cf5ec38db9209f59b222210375b54ee40d1e2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f50de3927f93d202783f4513cda820ab47ef17f624b03c096e86ef00c67e6b5f"
+dependencies = [
+ "lazy_static",
+]
+
 [[package]]
 name = "unicode-width"
 version = "0.1.8"
@@ -835,9 +1477,9 @@ checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.73"
+version = "0.2.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83240549659d187488f91f33c0f8547cbfef0b2088bc470c116d1d260ef623d9"
+checksum = "3cd364751395ca0f68cafb17666eee36b63077fb5ecd972bbcd74c90c4bf736e"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -845,9 +1487,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.73"
+version = "0.2.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae70622411ca953215ca6d06d3ebeb1e915f0f6613e3b495122878d7ebec7dae"
+checksum = "1114f89ab1f4106e5b55e688b828c0ab0ea593a1ea7c094b141b14cbaaec2d62"
 dependencies = [
  "bumpalo",
  "lazy_static",
@@ -859,10 +1501,22 @@ dependencies = [
 ]
 
 [[package]]
-name = "wasm-bindgen-macro"
-version = "0.2.73"
+name = "wasm-bindgen-futures"
+version = "0.4.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e734d91443f177bfdb41969de821e15c516931c3c3db3d318fa1b68975d0f6f"
+checksum = "1fe9756085a84584ee9457a002b7cdfe0bfff169f45d2591d8be1345a6780e35"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a6ac8995ead1f084a8dea1e65f194d0973800c7f571f6edd70adf06ecf77084"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -870,9 +1524,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.73"
+version = "0.2.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d53739ff08c8a68b0fdbcd54c372b8ab800b1449ab3c9d706503bc7dd1621b2c"
+checksum = "b5a48c72f299d80557c7c62e37e7225369ecc0c963964059509fbafe917c7549"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -883,15 +1537,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.73"
+version = "0.2.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9a543ae66aa233d14bb765ed9af4a33e81b8b58d1584cf1b47ff8cd0b9e4489"
+checksum = "7e7811dd7f9398f14cc76efd356f98f03aa30419dea46aa810d71e819fc97158"
 
 [[package]]
 name = "web-sys"
-version = "0.3.50"
+version = "0.3.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a905d57e488fec8861446d3393670fb50d27a262344013181c2cdf9fff5481be"
+checksum = "222b1ef9334f92a21d3fb53dc3fd80f30836959a90f9274a626d7e06315ba3c3"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -903,6 +1557,65 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4a32b378380f4e9869b22f0b5177c68a5519f03b3454fde0b291455ddbae266c"
 
+[[package]]
+name = "wgpu"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79a0a0a63fac9492cfaf6e7e4bdf9729c128f1e94124b9e4cbc4004b8cb6d1d8"
+dependencies = [
+ "arrayvec",
+ "js-sys",
+ "naga",
+ "parking_lot",
+ "raw-window-handle",
+ "smallvec",
+ "syn",
+ "tracing",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "wgpu-core",
+ "wgpu-types",
+]
+
+[[package]]
+name = "wgpu-core"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c89fa2cc5d72236461ac09c5be967012663e29cb62f1a972654cbf35e49dffa8"
+dependencies = [
+ "arrayvec",
+ "bitflags",
+ "cfg_aliases",
+ "copyless",
+ "fxhash",
+ "gfx-backend-dx11",
+ "gfx-backend-dx12",
+ "gfx-backend-empty",
+ "gfx-backend-gl",
+ "gfx-backend-metal",
+ "gfx-backend-vulkan",
+ "gfx-hal",
+ "gpu-alloc",
+ "gpu-descriptor",
+ "naga",
+ "parking_lot",
+ "raw-window-handle",
+ "smallvec",
+ "thiserror",
+ "tracing",
+ "wgpu-types",
+]
+
+[[package]]
+name = "wgpu-types"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72fa9ba80626278fd87351555c363378d08122d7601e58319be3d6fa85a87747"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -933,3 +1646,12 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "wio"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d129932f4644ac2396cb456385cbf9e63b5b30c6e8dc4820bdca4eb082037a5"
+dependencies = [
+ "winapi",
+]
diff --git a/src/grid.rs b/src/grid.rs
index 003083a..0d78377 100644
--- a/src/grid.rs
+++ b/src/grid.rs
@@ -182,6 +182,7 @@ impl Grid {
                 rotation_angle, step_distance,
                 width, height);
         });
+        self.deposit_all();
     }
 
     #[inline]
diff --git a/src/imgdata.rs b/src/imgdata.rs
index b87b76a..811363c 100644
--- a/src/imgdata.rs
+++ b/src/imgdata.rs
@@ -57,6 +57,16 @@ impl ThinGridData {
             .select_nth_unstable_by(index, |a, b| a.partial_cmp(b).unwrap());
         sorted[index]
     }
+
+    pub fn size_of(&self) -> usize {
+        let mut output: usize = 0;
+        output = output + std::mem::size_of_val(&self.width);
+        output = output + std::mem::size_of_val(&self.height);
+        for i in self.data.iter() {
+            output = output + std::mem::size_of_val(&i);
+        }
+        return output;
+    }
 }
 
 // Class for storing data that will be used to create images
@@ -85,6 +95,16 @@ impl ImgData {
         }
     }
 
+    pub fn size_of(&self) -> usize {
+        let mut output: usize = 0;
+        output = output + std::mem::size_of_val(&self.iteration);
+        output = output + std::mem::size_of_val(&self.palette);
+        for grid in self.grids.iter() {
+            output = output + grid.size_of();
+        }
+        return output;
+    }
+
     #[inline]
     pub fn save_to_image(&self) {
         let (width, height) = (self.grids[0].width, self.grids[0].height);
diff --git a/src/main.rs b/src/main.rs
index f471471..b813140 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,23 +4,25 @@ fn main() {
     // # of iterations to go through
     let n_iterations = 1024;
     // let n_iterations = 2048;
+    // let n_iterations = 1 << 14;
 
     // Size of grid and pictures
-    let (width, height) = (256, 256);
+    // let (width, height) = (256, 256);
     // let (width, height) = (512, 512);
-    // let (width, height) = (1024, 1024);
+    let (width, height) = (1024, 1024);
 
     // # of agents
     // let n_particles = 1 << 10;
     // let n_particles = 1 << 16;
-    let n_particles = 1 << 20;
+    // let n_particles = 1 << 20;
+    let n_particles = 1 << 24;
     println!("n_particles: {}", n_particles);
 
     let diffusivity = 1;
 
     // `n_populations` is the # of types of agents
-    let n_populations = 4;
-    // let n_populations = 3;
+    // let n_populations = 4;
+    let n_populations = 1;
     // let n_populations = 1 + rng.gen_range(1..4); // make # of populations between 2 and 5
 
     let mut model = model::Model::new(width, height, n_particles, n_populations, diffusivity); // Create the model
diff --git a/src/model.rs b/src/model.rs
index 7f42ee3..862f74e 100644
--- a/src/model.rs
+++ b/src/model.rs
@@ -123,19 +123,10 @@ impl Model {
             let agents_tick_time = Instant::now();
 
             // Tick agents
-            for grid in grids.iter_mut() {
-                grid.tick();
-            }
-
-            // Deposit
-            for grid in self.grids.iter_mut() {
-                grid.deposit_all();
-            }
-
-            // Diffuse + Decay
-            let diffusivity = self.diffusivity;
+            let diffusivity = self.diffusivity;            
             self.grids.par_iter_mut().for_each(|grid| {
-                grid.diffuse(diffusivity);
+                grid.tick();
+                grid.diffuse(diffusivity); // Diffuse + Decay
             });
 
             self.save_image_data();
@@ -167,11 +158,21 @@ impl Model {
         );
     }
 
+    fn size_of_imgdata_vec(&self) -> usize {
+        return (self.img_data_vec[0].size_of() as usize) * (self.img_data_vec.len() as usize);
+    }
+
     fn save_image_data(&mut self) {
         let grids = ThinGridData::new_from_grid_vec(self.grids.clone());
         let img_data = ImgData::new(grids, self.palette, self.iteration);
         self.img_data_vec.push(img_data);
-        if self.grids[0].width > 1024 && self.grids[0].height > 1024 && self.img_data_vec.len() > 100 {
+        let size: usize = self.size_of_imgdata_vec();
+        let mb = size/1024/1024;
+        // println!("{} B | {} KB | {} MB", size, size/1024, size/1024/1024);
+
+        let max_mb = 6000;
+        if mb >= max_mb {
+            println!("ram usage is over {} MB (and len of {}), flushing to disk\n", max_mb, self.img_data_vec.len());
             self.render_all_imgdata();
             self.flush_image_data();
         }