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Guides
Beginners
Getting Started
Unfinished
Your First Shader
Unfinished
Reference
Overview
Attributes
at_midBlock
at_tangent
mc_Entity
mc_midTexCoord
vaColor
1.17+
vaNormal
1.17+
vaPosition
1.17+
vaUV0
1.17+
vaUV1
1.17+
vaUV2
1.17+
Buffers
ColorTex
DepthTex
NoiseTex
ShadowColor
ShadowTex
Custom Textures
Custom Images
Iris Only
SSBOs
Iris Only
Texture Format
Constants
RENDERTARGETS
DRAWBUFFERS
ambientOcclusionLevel
Buffer Clear
Buffer Clear Color
Buffer Format
centerDepthHalflife
Colortex Mipmaps
drynessHalflife
entityShadowDistanceMul
Iris Only
eyeBrightnessHalflife
noiseTextureResolution
Shadow Mipmaps
shadowDistance
shadowDistanceRenderMul
shadowHardwareFiltering
shadowIntervalSize
shadowMapFov
shadowMapResolution
sunPathRotation
voxelDistance
Iris Only
wetnessHalflife
Macros
Driver Vendor
GPU Hardware
IRIS_HAS_CONNECTED_TEXTURES
Iris Only
IRIS_TAG_SUPPORT
Iris Only
IS_IRIS
Iris Only
MC_GL_VERSION
MC_GLSL_VERSION
MC_HAND_DEPTH
MC_TEXTURE_FORMAT_LAB_PBR
MC_VERSION
Operating System
Render Stages
Supported Extensions
Miscellaneous
block.properties
entity.properties
item.properties
Mod
DH
DH Overview
Unfinished
Compatible Shaders
Programs
setup
Iris Only
begin
Iris Only
shadow
shadow_comp
prepare
gbuffers
deferred
composite
final
Shaders.Properties
alphaTest
backFace
beacon.beam.depth
blend
flip
size.buffer
clouds
Custom Uniforms
frustum.culling
moon
oldHandLight
oldLighting
particles.before.deferred
program.enabled
rain.depth
scale
separateAo
shadow.culling
shadowBlockEntities
shadowEntities
shadowTerrain
shadowTranslucent
sun
underwaterOverlay
vignette
allowConcurrentCompute
Iris Only
indirect.pass
Iris Only
occlusion.culling
Iris Only
particles.ordering
Iris Only
separateEntityDraws
Iris Only
shadow.enabled
Iris Only
shadowPlayer
Iris Only
skipAllRendering
Iris Only
supportsColorCorrection
Iris Only
voxelizeLightBlocks
Iris Only
Feature Flags
Iris Only
Uniforms
General
alphaTestRef
ambientLight
Iris Only
aspectRatio
atlasSize
bedrockLevel
Iris Only
biome
Iris Only
biome_catagory
Iris Only
biome_precipitation
Iris Only
blendFunc
blindness
blockEntityId
cameraPosition
cameraPositionFract
Iris Only
cameraPositionInt
Iris Only
centerDepthSmooth
chunkOffset
1.17+
cloudHeight
Iris Only
constantMood
Iris Only
currentColorSpace
Iris Only
currentDate
Iris Only
currentPlayerAir
Iris Only
currentPlayerArmour
Iris Only
currentPlayerHealth
Iris Only
currentPlayerHunger
Iris Only
currentRenderedItemId
Iris Only
currentSelectedBlockId
Iris Only
currentSelectedBlockPos
Iris Only
currentTime
Iris Only
currentYearTime
Iris Only
darknessFactor
darknessLightFactor
entityColor
entityId
eyeAltitude
eyeBrightness
eyeBrightnessSmooth
eyePosition
Iris Only
far
firstPersonCamera
Iris Only
fogColor
fogDensity
fogEnd
fogMode
fogShape
fogStart
frameCounter
frameTime
frameTimeCounter
hasCeiling
Iris Only
hasSkylight
Iris Only
heightLimit
Iris Only
heldBlockLightValue
heldBlockLightValue2
heldItemId
heldItemId2
hideGUI
is_burning
Iris Only
is_hurt
Iris Only
is_invisible
Iris Only
is_on_ground
Iris Only
is_sneaking
Iris Only
is_sprinting
Iris Only
isEyeInWater
isRightHanded
Iris Only
isSpectator
Iris Only
lightningBoltPosition
Iris Only
logicalHeightLimit
Iris Only
maxPlayerAir
Iris Only
maxPlayerArmour
Iris Only
maxPlayerHealth
Iris Only
maxPlayerHunger
Iris Only
moonPhase
moonPosition
near
nightVision
playerBodyVector
Iris Only
playerLookVector
Iris Only
playerMood
previousCameraPosition
previousCameraPositionFract
Iris Only
previousCameraPositionInt
Iris Only
rainfall
Iris Only
rainStrength
relativeEyePosition
Iris Only
renderStage
Unfinished
screenBrightness
shadowAngle
shadowLightPosition
skyColor
sunAngle
sunPosition
temperature
Iris Only
thunderStrength
Iris Only
upPosition
viewHeight
viewWidth
wetness
worldDay
worldTime
Matrices
gbufferModelView
gbufferModelViewInverse
gbufferPreviousModelView
gbufferPreviousProjection
gbufferProjection
gbufferProjectionInverse
modelViewMatrix
1.17+
modelViewMatrixInverse
1.17+
normalMatrix
1.17+
projectionMatrix
1.17+
projectionMatrixInverse
1.17+
shadowModelView
shadowModelViewInverse
shadowProjection
shadowProjectionInverse
textureMatrix
1.17+
How To
Shadow Transforms
Unfinished
Spaces
Unfinished
PBR Standards
GitHub
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viewHeight
uniform float viewHeight;
This uniform saves the height of the screen in pixels/fragments.
