Webclient work

[GregHib]

Bugs:

• Lighting detail broken - (see lumbridge grass/dungeon - caused by high lighting detail)
  • Bloom lighting
  • Grass shading
• Log In button shadow bug
• Only one level is rendered at a time still (safe mode still active?)
• Loading please wait interface doesn't show when loading a new region
• Text rendering bug on world map
• Performance/stuttering
• Default brightness setting?
• Minimap brightness
• Missing minimap diagonal walls
• Logout crashes
• Stero sound crashes
• Invisible walls in lumbridge (around gate) obj 33588
• water
  • HD water turns white depending on camera angle when fog is also enabled
  • SD water flickers when remove roofs = always and flickering effects = on

Need to add support:

• Animated water texture
• HD water
• Custom cursor
• Particles
• Port the scroll-to-zoom
• Port increased render radius
• Full screen mode
• Software renderer mode
• Logout/exit on close/refresh

[GregHib]

WATER_FOG_WHITE_BUG_HANDOFF.md

[HarleyGilpin]

Progress in #25 (web client, jaggl shim):

• Log In button shadow bug – the button is three sprites and the 3‑px middle strip is stretched with LINEAR filtering out of a 4‑px power‑of‑two texture, so its last pixels blended with the transparent padding column (a dark seam near one cap). The shim now replicates a sprite's last column/row into the padding on origin sub‑uploads, which is what clamp‑to‑edge on a texture_rectangle gives the JVM.
• HD water turns white depending on camera angle when fog is enabled – ScrollTexMaterialPass fades the water's alpha through a 2‑texel ramp sampled by GL_EYE_LINEAR texgen and picks its 3D slice with GL_OBJECT_LINEAR; glTexGenfv was a stub and only sphere/normal/reflection modes were emulated, so the ramp sampled a stale attribute and the surface came out opaque light blue/white at some yaws. Texgen is now complete (per‑coordinate modes/enables, object + eye planes, unit 0 included). Verified with an automated framebuffer sweep over a full rotation: 0 white pixels.

Also fixed on the way, not on the list:

• Black sky on Linux / blown‑out water on Windows: the frame is cleared to the fog colour with alpha 0 and HD water leaves fractional alpha; the alpha:true canvas is composited premultiplied, so the result depended on the browser/compositor. swapBuffers now forces the presented alpha to 1 (JVM‑style opaque surface); alpha:false isn't usable because the minimap copies the framebuffer into an RGBA texture.
• MSAA: the context always had antialias:true; it now follows the sample count the client passes to OpenGL.init (the Anti‑aliasing option), removing the coverage rims on alpha‑tested foliage.

Not touched: SD water flicker with remove roofs = always + flickering effects = on. The hand‑off doc's instrumentation (WaterDebug, RAMP_BYPASS, FOG_COLOR_OVERRIDE, uFf3dNoSample) can be dropped; the uFf3dNoSample hack in particular removes the intended caustics.