Built-in Shader Uniforms
To use built-in shader variables, you need to include the corresponding chunks first. All currently available built-in uniforms, grouped by the chunks they are located:
cc-local.chunk
| Name | Type | Info |
|---|---|---|
cc_matWorld |
mat4 | model to world transform matrix |
cc_matWorldIT |
mat4 | inverse-transpose of model to world transform matrix |
cc-global.chunk
| Name | Type | Info |
|---|---|---|
cc_time |
vec4 | x: seconds since engine started |
cc_screenSize |
vec4 | xy: shading screen size zw: reciprocal of shading screen size |
cc_screenScale |
vec4 | xy: screen scale zw: reciprocal of screen scale |
cc_nativeSize |
vec4 | xy: canvas size zw: reciprocal of canvas size |
cc_matView |
mat4 | view transform matrix |
cc_matViewInv |
mat4 | inverse view matrix |
cc_matProj |
mat4 | projection transform matrix |
cc_matProjInv |
mat4 | inverse projection transform matrix |
cc_matViewProj |
mat4 | view-projection transform matrix |
cc_matViewProjInv |
mat4 | inverse view-projection transform matrix |
cc_cameraPos |
vec4 | xyz: camera position |
cc_exposure |
vec4 | x: camera exposure y: reciprocal of camera exposure z: is HDR enabled w: HDR-LDR scaling factor |
cc_mainLitDir |
vec4 | xyz: direction of the main directional light |
cc_mainLitColor |
vec4 | xyz: color of the main directional light w: intensity |
cc_ambientSky |
vec4 | xyz: ambient sky color w: intensity |
cc_ambientGround |
vec4 | xyz: ambient ground color |
cc-environment.chunk
| Name | Type | Info |
|---|---|---|
cc_environment |
samplerCube | IBL environment map |
cc-forward-light.chunk
| Name | Type | Info |
|---|---|---|
cc_sphereLitPos[MAX_LIGHTS] |
vec4 | xyz: position of spherical lights |
cc_sphereLitSizeRange[MAX_LIGHTS] |
vec4 | x: size of spherical lights y: range of spherical lights |
cc_sphereLitColor[MAX_LIGHTS] |
vec4 | xyz: color of spherical lights w: intensity |
cc_spotLitPos[MAX_LIGHTS] |
vec4 | xyz: position of spotlights |
cc_spotLitSizeRangeAngle[MAX_LIGHTS] |
vec4 | x: size of spotlights y: range of spotlights z: angle of spotlights |
cc_spotLitDir[MAX_LIGHTS] |
vec4 | xyz: direction of spotlights |
cc_spotLitColor[MAX_LIGHTS] |
vec4 | xyz: color of spotlights w: intensity |
cc-shadow.chunk
| Name | Type | Info |
|---|---|---|
cc_matLightPlaneProj |
mat4 | planar shadow transform matrix |
cc_shadowColor |
vec4 | shadow color |