broken shaders?

[Shaders] Loaded shaderpack: Robobo1221s shaders V 6.0 Low.zip
[OptiFine] [WARN] Ambiguous shader option: NORMAL_MAP_MAX_ANGLE
[OptiFine] [WARN]  - in gbuffers_terrain.fsh: 0.5
[OptiFine] [WARN]  - in gbuffers_hand.fsh: 1.0
[Shaders] Uninit
[Shaders] Loaded shaderpack: Robobo1221s shaders V 6.0 Low.zip
[OptiFine] [WARN] Ambiguous shader option: NORMAL_MAP_MAX_ANGLE
[OptiFine] [WARN]  - in gbuffers_terrain.fsh: 0.5
[OptiFine] [WARN]  - in gbuffers_hand.fsh: 1.0
[Shaders] Program loaded: gbuffers_skybasic
[Shaders] Program loaded: gbuffers_skytextured
[Shaders] Program loaded: gbuffers_terrain
[Shaders] Info log: /shaders/gbuffers_water.vsh, /shaders/gbuffers_water.fsh
WARNING: Output of vertex shader 'viewVector' not read by fragment shader
WARNING: Output of vertex shader 'position' not read by fragment shader


[Shaders] Program loaded: gbuffers_water
[Shaders] Program loaded: gbuffers_entities
[Shaders] Info log: /shaders/gbuffers_spidereyes.vsh, /shaders/gbuffers_spidereyes.fsh
WARNING: Output of vertex shader 'color' not read by fragment shader


[Shaders] Program loaded: gbuffers_spidereyes
[Shaders] Info log: /shaders/gbuffers_hand.vsh, /shaders/gbuffers_hand.fsh
WARNING: Could not find vertex shader attribute 'mc_Entity' to match BindAttributeLocation request.


[Shaders] Program loaded: gbuffers_hand
[Shaders] Program loaded: gbuffers_weather
[Shaders] Shadow map resolution: 516
[Shaders] Shadow map distance: 50
[Shaders] Wetness halflife: 70
[Shaders] Dryness halflife: 70
[Shaders] Center depth halflife: 4
[Shaders] Eye brightness halflife: 7
[Shaders] gcolor mipmap enabled for /shaders/composite.fsh
[Shaders] Hardware shadow filtering enabled.
[Shaders] Sun path rotation: -40
[Shaders] AO Level: 1
[Shaders] gcolor format: RGBA16
[Shaders] gaux1 format: RGBA16
[Shaders] gaux2 format: RGB8
[Shaders] gnormal format: RGB16
[Shaders] composite format: RGBA16
[Shaders] Noise texture enabled
[Shaders] Noise texture resolution: 1024
[Shaders][SEVERE] Error linking program: 18
[Shaders] Info log: /shaders/composite.vsh, /shaders/composite.fsh
WARNING: Output of vertex shader 'SdotU' not read by fragment shader
WARNING: Output of vertex shader 'MdotU' not read by fragment shader
ERROR: Input of fragment shader 'sunlight' not written by vertex shader


GL error 0x0502: Invalid operation at useProgram  composite
GL error 0x0501: Invalid value at useProgram  composite
[Shaders] Info log: /shaders/composite.vsh, /shaders/composite.fsh
Validation Failed: Link error:
  Program is not successfully linked.


[Shaders][SEVERE] [Shaders] Error: Invalid program "composite"
[17:01:25] [Client thread/INFO]: [CHAT] [Shaders] Error: Invalid program "composite"
[Shaders] gcolor mipmap enabled for /shaders/composite1.fsh
[Shaders] Info log: /shaders/composite1.vsh, /shaders/composite1.fsh
WARNING: Output of vertex shader 'moonVisibility' not read by fragment shader
WARNING: Output of vertex shader 'cloudColor' not read by fragment shader
WARNING: Output of vertex shader 'moonlight' not read by fragment shader
WARNING: Output of vertex shader 'SdotU' not read by fragment shader
WARNING: Output of vertex shader 'MdotU' not read by fragment shader
WARNING: Output of vertex shader 'sunVec' not read by fragment shader
WARNING: Output of vertex shader 'upVec' not read by fragment shader
WARNING: Output of vertex shader 'moonVec' not read by fragment shader
WARNING: Output of vertex shader 'sunVisibility' not read by fragment shader


[Shaders] Program loaded: composite1
[Shaders] gcolor mipmap enabled for /shaders/final.fsh
[Shaders] Info log: /shaders/final.vsh, /shaders/final.fsh
WARNING: Output of vertex shader 'lightVector' not read by fragment shader
WARNING: Output of vertex shader 'sunlight' not read by fragment shader


[Shaders] Program loaded: final
[Shaders] Program loaded: shadow
[Shaders] usedColorBuffers: 7
[Shaders] usedDepthBuffers: 2
[Shaders] usedShadowColorBuffers: 0
[Shaders] usedShadowDepthBuffers: 1
[Shaders] usedColorAttachs: 7
[Shaders] usedDrawBuffers: 7
[Shaders] Framebuffer created.
[Shaders] Shadow framebuffer created.
[Shaders] Reset world renderers
[Shaders] Reset model renderers