diff --git a/index.html b/index.html
index d31a42c2c9dbfaaefa8b5155e0b44d722c8c6f39..d2a4ee50212d319728c17ddccedd04c4f44aa1e1 100644
--- a/index.html
+++ b/index.html
@@ -15,6 +15,6 @@
<script type="module" src="/src/cg/perspectiveDivide.ts"></script>
<script type="module" src="/src/cg/walkToVec.ts"></script>
<script type="module" src="/src/cg/basis.ts"></script-->
- <script type="module" src="/src/cg/raytracing2animation.ts"></script>
+ <script type="module" src="/src/cg/bird.ts"></script>
</body>
</html>
diff --git a/src/cg/bird.ts b/src/cg/bird.ts
new file mode 100644
index 0000000000000000000000000000000000000000..ed69bfae64db474d966d9e326ef07ba4ffd7d298
--- /dev/null
+++ b/src/cg/bird.ts
@@ -0,0 +1,88 @@
+import Framebuffer from "./framebuffer";
+import { Vec3, Matrix4, Matrix3, matrix3ToMatrix4, matrix4Product, raySphereIntersect, ISphere, rotX, rotY, multVec3Matrix4 } from "./utils";
+import spheres from './bird/bird.json';
+
+const width = 600
+const height = 600
+const framebuffer = new Framebuffer(width, height);
+const imagePlaneDist = -0.5
+
+const tNear = 1;
+const tFar = 1000;
+
+// Transform data from Blender
+const birdRotation = matrix3ToMatrix4(rotX(-90))/// <--- create a rotation matrix
+for (let i = 0; i < spheres.length; i++) {
+ // overwrite the data with the new transformation:
+ spheres[i].position = multVec3Matrix4(spheres[i].position, birdRotation);
+}
+
+const o: Vec3 = [0, 0, 0]
+
+const camT: Matrix4 = [
+ 1, 0, 0, 0,
+ 0, 1, 0, 0,
+ 0, 0, 1, 0,
+ 0, 0, 10, 1 // <--- 4x4 matrix that moves the camera in Z
+]
+
+const camRx = matrix3ToMatrix4(rotX(-30))// <--- rotation matrix around X. Convert it to 4x4.
+
+const camInitialTransform = matrix4Product(camT, camRx)// <--- combine camT and camRX into a new matrix
+
+let currentFrame = 0
+
+for (let i = 0; i <= 1; i += .1) {
+ framebuffer.clear()
+
+
+ const camRot = rotY(360*i)// <--- rotation matrix around Y using 360 * i in each frame
+
+
+ const combinedCameraTransform = matrix4Product(camInitialTransform, matrix3ToMatrix4(camRot)) // <--- Combine transformations:
+ // initial transform then rotate
+
+
+ // Loop over framebuffer pixels
+ for (let x = 0; x <= width; x++) {
+ for (let y = 0; y <= height; y++) {
+
+ // Convert to screen space
+ const v = framebuffer.rasterToScreen(x, y, width, height, imagePlaneDist)// <--- convert raster to screen space
+ const vTransformed = multVec3Matrix4(v, combinedCameraTransform)// <--- apply camera transform
+ const oTransformed = multVec3Matrix4(o, combinedCameraTransform)// <--- apply camera transform
+
+ // ...
+ // ... same as in previous task but using transformed camera vectors
+ let closestSphere = null;
+ let closestIntersection = 9999;
+
+ for (let i = 0; i < spheres.length; i++) {
+
+ //const position = spheres[i].position;
+
+ const [t1, t2] = raySphereIntersect(vTransformed, oTransformed, spheres[i] as ISphere)// <--- Calculate intersections
+
+ if (t1 < closestIntersection && tNear < t1 && t1 < tFar) {
+ closestIntersection = t1;
+ closestSphere = spheres[i]
+ }
+
+ if (t2 < closestIntersection && tNear < t2 && t2 < tFar) {
+ closestIntersection = t2;
+ closestSphere = spheres[i];
+ }
+ }
+ if (!closestSphere) {
+ framebuffer.draw(x,y,[0,0,50]) // <--- Draw a background color
+ } else {
+ framebuffer.draw(x,y,closestSphere.color) // <--- Draw color of closest sphere
+ }
+
+ }
+
+ }
+ framebuffer.update();
+ framebuffer.save("spheres." + ++currentFrame);
+
+}
\ No newline at end of file
diff --git a/src/cg/bird/bird.json b/src/cg/bird/bird.json
new file mode 100644
index 0000000000000000000000000000000000000000..e8f5e5e7203d3e1c6872d405871395ab25094f42
--- /dev/null
+++ b/src/cg/bird/bird.json
@@ -0,0 +1,2017 @@
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