HASTE V48 - CAPTURE FADE AND ACCRETION TAPER

Based on Haste_Shader_V1_1_4_v47.

Changes in the End black-hole renderer:
- The accretion band now tapers over a longer distance and its outer energy fades exponentially, so the band dissolves into the sky rather than looking like a beam or ending abruptly.
- Reduced direct disk brightness and asymmetry.
- Increased the lightweight screen-space background deflection near the capture region.
- Added a smooth capture fade to dim stars and nebula as they approach the shadow.
- Reduced far-field direct-disk glow.

This is a procedural screen-space lensing approximation, not a full relativistic ray tracer. Not compiled or tested in Minecraft.
