projection work + tests

thermion_dart/test/assets/cube_texture2.svg

@@ -0,0 +1,181 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="200"
+   height="200"
+   viewBox="0 0 1 1"
+   version="1.1"
+   id="svg10"
+   sodipodi:docname="cube_texture2.svg"
+   inkscape:export-filename="cube_texture2_512x512.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   inkscape:version="1.4 (e7c3feb1, 2024-10-09)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs10" />
+  <sodipodi:namedview
+     id="namedview10"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:zoom="0.536875"
+     inkscape:cx="-6.5192084"
+     inkscape:cy="390.22119"
+     inkscape:window-width="1200"
+     inkscape:window-height="964"
+     inkscape:window-x="0"
+     inkscape:window-y="25"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg10" />
+  <!-- Background Grid (optional, for visual aid) -->
+  <rect
+     x="0"
+     y="0"
+     width="1"
+     height="1"
+     fill="#f0f0f0"
+     id="rect1" />
+  <line
+     x1="0.333"
+     y1="0"
+     x2="0.333"
+     y2="1"
+     stroke="#ccc"
+     stroke-width="0.005"
+     id="line1" />
+  <line
+     x1="0.666"
+     y1="0"
+     x2="0.666"
+     y2="1"
+     stroke="#ccc"
+     stroke-width="0.005"
+     id="line2" />
+  <line
+     y1="0.25"
+     x1="0"
+     y2="0.25"
+     x2="1"
+     stroke="#ccc"
+     stroke-width="0.005"
+     id="line3" />
+  <line
+     y1="0.5"
+     x1="0"
+     y2="0.5"
+     x2="1"
+     stroke="#ccc"
+     stroke-width="0.005"
+     id="line4" />
+  <line
+     y1="0.75"
+     x1="0"
+     y2="0.75"
+     x2="1"
+     stroke="#ccc"
+     stroke-width="0.005"
+     id="line5" />
+  <!-- Front Face -->
+  <rect
+     x="0.333"
+     y="0"
+     width="0.333"
+     height="0.25"
+     fill="#ff0000"
+     id="rect5" />
+  <text
+     x="0.5"
+     y="0.125"
+     text-anchor="middle"
+     dominant-baseline="middle"
+     font-size="0.1"
+     fill="white"
+     id="text5">Front</text>
+  <!-- Back Face -->
+  <rect
+     x="0.333"
+     y="0.5"
+     width="0.333"
+     height="0.25"
+     fill="#00ff00"
+     id="rect6" />
+  <text
+     x="0.5"
+     y="0.625"
+     text-anchor="middle"
+     dominant-baseline="middle"
+     font-size="0.1"
+     fill="white"
+     id="text6">Back</text>
+  <!-- Top Face -->
+  <rect
+     x="0.666"
+     y="0.25"
+     width="0.333"
+     height="0.25"
+     fill="#0000ff"
+     id="rect7" />
+  <text
+     x="0.833"
+     y="0.375"
+     text-anchor="middle"
+     dominant-baseline="middle"
+     font-size="0.1"
+     fill="white"
+     id="text7">Top</text>
+  <!-- Bottom Face -->
+  <rect
+     x="0"
+     y="0.25"
+     width="0.333"
+     height="0.25"
+     fill="#ffff00"
+     id="rect8" />
+  <text
+     x="0.166"
+     y="0.375"
+     text-anchor="middle"
+     dominant-baseline="middle"
+     font-size="0.1"
+     fill="black"
+     id="text8">Bottom</text>
+  <!-- Right Face -->
+  <rect
+     x="0.333"
+     y="0.25"
+     width="0.333"
+     height="0.25"
+     fill="#ff00ff"
+     id="rect9" />
+  <text
+     x="0.5"
+     y="0.375"
+     text-anchor="middle"
+     dominant-baseline="middle"
+     font-size="0.1"
+     fill="white"
+     id="text9">Right</text>
+  <!-- Left Face -->
+  <rect
+     x="0.333"
+     y="0.75"
+     width="0.333"
+     height="0.25"
+     fill="#00ffff"
+     id="rect10" />
+  <text
+     x="0.5"
+     y="0.875"
+     text-anchor="middle"
+     dominant-baseline="middle"
+     font-size="0.1"
+     fill="black"
+     id="text10">Left</text>
+</svg>