forked from 1b-agent/opencadstudio-upstream
No GPU pipeline reads camera_pos any more — lighting and all transforms moved to the relative-to-eye path (view_rot + eye_high/eye_low). Remove the field from the shared Uniforms and every shader struct, plus the now unused Camera::position_vec4. view_proj stays: the CPU frustum-cull / scissor / LOD passes still project offset-relative AABBs with it (it is no longer part of any GPU draw). Co-Authored-By: Claude Opus 4.7 <[email protected]>