Synthwave sunset · qwen3.6-35b-a3b
Output generated Cost / run $0.0048 Runtime 58.9s
Prompt for this run
Build an animated synthwave landscape on a full-screen canvas. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. No third-party libraries are provided. Required behavior: - Draw a glowing gradient sun broken by horizontal scanline bands, a starfield, and a perspective neon grid extending from the foreground to a horizon. - Animate the grid toward the viewer to suggest forward travel. Move the sun slowly down toward the horizon while keeping the composition visible. - Below the horizon, include a stylized reflection of the sun's colors on the ground plane, visually distinct from a second sun in the sky. - Use a loop of 10 to 20 seconds that repeats without a distracting reset jump. Provide Pause/Resume and Restart controls. - Use procedural drawing and colors only. Fit the canvas to the viewport; choose the palette and decorative details freely. Verify: Sample several moments to inspect grid travel, sun movement, and the reflected colors below the horizon. Pause and resume to check animation control, then use Restart and compare the starting composition.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
METRICS
Transcript · 7 messages
Build an animated synthwave landscape on a full-screen canvas. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. No third-party libraries are provided. Required behavior: - Draw a glowing gradient sun broken by horizontal scanline bands, a starfield, and a perspective neon grid extending from the foreground to a horizon. - Animate the grid toward the viewer to suggest forward travel. Move the sun slowly down toward the horizon while keeping the composition visible. - Below the horizon, include a stylized reflection of the sun's colors on the ground plane, visually distinct from a second sun in the sky. - Use a loop of 10 to 20 seconds that repeats without a distracting reset jump. Provide Pause/Resume and Restart controls. - Use procedural drawing and colors only. Fit the canvas to the viewport; choose the palette and decorative details freely. Verify: Sample several moments to inspect grid travel, sun movement, and the reflected colors below the horizon. Pause and resume to check animation control, then use Restart and compare the starting composition.
thinking
The user wants me to build a synthwave landscape animation on a full-screen canvas. Let me plan this out: 1. A glowing gradient sun with horizontal scanlines 2. A starfield background 3. A perspective neon grid extending to the horizon 4. Animated grid moving toward the viewer (forward travel) 5. Sun slowly moving down toward the horizon 6. Reflection of sun's colors on the ground plane below horizon 7. 10-20 second looping animation 8. Pause/Resume and Restart controls 9. All in one self-contained index.html file Let me build this step by step, then verify it works in the browser.
/tmp/job-L6PR1u/index.html (14720 bytes)Successfully wrote to /tmp/job-L6PR1u/index.html
thinking
Now let me open it in the browser to inspect the output and verify everything works.
{"action":"screenshot"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"PAUSE\nRESTART\n00:00","images":"attached"}
thinking
The image shows a synthwave landscape rendering that looks good! Let me verify the key requirements by checking the code and testing the functionality: 1. ✅ Glowing gradient sun with horizontal scanline bands 2. ✅ Starfield 3. ✅ Perspective neon grid extending from foreground to horizon 4. ✅ Grid animation toward viewer (forward travel) 5. ✅ Sun moving slowly down toward the horizon 6. ✅ Reflection of sun's colors below the horizon 7. ✅ Pause/Resume and Restart controls 8. ✅ Full-screen canvas 9. ✅ No external resources Let me quickly check the code to verify the animation loop length and controls work properly, and test a few behaviors by examining the source.
Let me verify the code and test the Pause/Resume and Restart controls work properly. ```bash cd /tmp/job-L6PR1u && head -200 index.html | grep -n "pause\|resume\|restart\|loop\|duration\|seconds" ```