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weBIGeo / webigeo

Rendering system for weBIGeo.
GNU General Public License v3.0
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Blackscreen after using scroll wheel in web #24

Closed pkomon-tgm closed 1 month ago

pkomon-tgm commented 1 month ago

Using the scroll wheel without other prior interaction in the web version causes a black screen, that can only be fixed by reloading the page.

To reproduce

  1. host WASM build (debug) locally
  2. open page in Chrome, wait until terrain has loaded and app has become responsive
  3. scroll input (direction irrelevant)
  4. blackscreen, imgui overlay still visible

This might have something to do with depth buffer read back. The issue does not appear the mouse is pressed down first. Maybe some initializiation is missing somewhere.

tested on Google Chrome 127.0.6533.73

GeraldKimmersdorfer commented 1 month ago

Our input mapping used the last mouse position. But this was not initialized as now we only send mouse move events when a button is pressed.

I now query the mouse position with glfwGetCursorPos on scroll.

fixed with 8b90acb54a2c2040781e2bcd400ad751d9a1008a