Fix horse rendering: culling when looking up + fire debug texture

[MCbabel]

Description

Fixes two horse rendering issues: the horse model disappearing when looking up while riding, and a debug texture showing instead of the fire overlay when a horse is on fire.

Changes

Fix 1: Horse disappears when looking up while riding

Previous Behavior:
The horse model would vanish when the player looked up while riding it.

Root Cause:
LevelRenderer::renderEntities() had no frustum culling exception for the entity the player is currently riding. The horse AABB ends at horse.y + 1.6, but the camera sits at horse.y + 2.82. When looking up, the entire horse AABB falls below the frustum and gets culled.

Fix:
Added an isPlayerVehicle check that skips frustum culling for the entity the player is riding.

Fix 2: Debug texture when horse is on fire

Previous Behavior:
When a horse, mule, or donkey was set on fire, it displayed a broken/debug texture instead of the normal fire overlay.

Before	After

Root Cause:
HorseRenderer::bindTexture() unconditionally calls bindTextureLayers(), even for single textures like the fire atlas. This reads the raw terrain.png instead of the runtime texture atlas.

Fix:
Modified HorseRenderer::bindTexture() to check getTextureCount(). Multi-layer horse textures still use bindTextureLayers(), single textures delegate to EntityRenderer::bindTexture().

Files Changed

• Minecraft.Client/LevelRenderer.cpp - Added isPlayerVehicle culling bypass
• Minecraft.Client/HorseRenderer.cpp - Fixed bindTexture() delegation

Related Issues

• Reported on Discord (no GitHub issue)