UUSL defines parameters that passed by the engine to the shader. These parameters can be used in your shader programs to get the necessary data from the engine.
Common Parameters
UUSL parameter
Type
Description
s_viewport
float4
Viewport sizes: width, height, 1/width, 1/height.
s_depth_range
float4
Depth range: near, far, 1/near, 1/far.
s_solid_color
float4
Solid color.
s_reflection_color
float4
Ambient color.
s_frame
int
The current frame number.
s_taa_offset
float2
TAA jittering
s_clutter_cluster_offset
float3
Clutter/Cluster offset.
Camera Parameters
UUSL parameter
Type
Description
s_projection
float4x4
Projection matrix.
s_iprojection
float4x4
Inverse projection matrix.
s_imodelview
float4x4
Inverse Model-View matrix.
s_old_imodelview
float4x4
Old inverse Model-View matrix.
s_camera_offset
float3
Camera position.
s_camera_position
float
Camera position in world space.
s_camera_direction
float3
Camera direction vector.
s_camera_projection
float4x4
Projection matrix of camera (not renderstate). For example: post have ortographic projection, but camera projection is perspective.
s_camera_iprojection
float4x4
Inverse projection matrix of camera (not renderstate). For example: post have ortographic projection, but camera projection is perspective.
Cube Render Parameters
UUSL parameter
Type
Description
s_iface_rotation[6]
float4x4
Inverted cubemap face rotation parameter.
ModelView Projection Parameters
UUSL parameter
Type
Description
s_modelview_projection_x
float4
First column of the Model-View projection matrix.
s_modelview_projection_y
float4
Second column of the Model-View projection matrix.
s_modelview_projection_w
float4
Fourth column of the Model-View projection matrix.
s_modelview_untranslated
float4x4
Model-View matrix without translate (only rotation).
Polygon Front Parameters
UUSL parameter
Type
Description
s_polygon_front
float
Polygon front.
Transform Parameters
UUSL parameter
Type
Description
s_transform[3]
float4
Transformation matrix.
Old Transform Parameters
UUSL parameter
Type
Description
s_old_transform[3]
float4
Old transformation matrix.
Light Parameters
UUSL parameter
Type
Description
s_light_position
float3
The position of the Light Source
s_light_direction
float3
The light direction.
s_light_color
float4
Light color.
s_light_attenuation
float4
Light attenuation.
s_light_shape
float4
The shape of the light source.
s_light_transform
float4x4
Light transformation matrix.
s_light_projection
float4x4
Light projection matrix.
s_light_penumbra
float
Project light source penumbra parameter.
s_light_reflection_color
float4
Environment probe's reflection color.
s_light_ambient_color
float4
Environment Probe's ambient color.
s_light_mipmaps
float
Environment Probe's number of mipmaps.
Light Shadow Parameters
s_light_shadow_offset
float3
Light shadow offset.
s_light_shadow_depth_bias
float3
Light shadow depth bias.
s_light_shadow_depth_range
float2
Light shadow depth range.
s_light_shadow_projection
float4x4
Light shadow projection matrix.
s_light_shadow_softness
float
Light shadow softness value.
s_light_shadow_sharpness
float
Light shadow sharpness value.
s_light_shadow_iradius
float
Light shadow inverse radius.
Light Cascades Parameters
UUSL parameter
Type
Description
s_light_cascades_offset
float
World light cascades offset.
s_light_cascades_num
int
World light shadow cascades number.
s_light_cascades_projection[4]
float4x4
World light shadow cascades projection matrix.
s_light_cascades_bias[4]
float
World light shadow cascades bias.
Scattering Parameters
UUSL parameter
Type
Description
s_scattering_sun_dir
float3
The direction of the sun scattering.
s_scattering_moon_dir
float3
The direction of the moon scattering.
Environment Parameters
UUSL parameter
Type
Description
s_environment_ambient_intensity
float
Environment ambient intensity parameter.
s_environment_reflection_intensity
float
Environment reflection intensity parameter.
Haze Parameters
UUSL parameter
Type
Description
s_haze_color
float4
The color of the haze.
s_haze_max_distance
float
Haze maximum visible distance.
s_haze_density
float
The haze density.
Material Textures Parameters
UUSL parameter
Type
Description
s_material_textures[16]
float4
Material textures. Each 16 vectors contains: width, height, 1/width, 1/height of the texture slot.
Material Tessellation Parameters
UUSL parameter
Type
Description
s_material_tessellation_factor
float4
Tessellation factor.
s_material_tessellation_distance
float3
Tessellation distance.
Material Animation Parameters
UUSL parameter
Type
Description
s_material_animation_stem
float4
Animation stem.
s_material_old_animation_stem
float4
Old animation stem.
s_material_animation_leaf
float3
Animation leaf.
s_material_old_animation_leaf
float3
Old animation leaf.
s_material_animation_wind
float3
Animation wind.
Material Ambient Parameters
UUSL parameter
Type
Description
s_material_reflection_transform
float4x4
Ambient transformation matrix.
Surface Parameters
UUSL parameter
Type
Description
s_surface_min_bound_sphere
float4
Minimum size of the bounding sphere: center (x,y,z), radius(w).
s_surface_max_bound_sphere
float4
Maximum size of the bounding sphere: center (x,y,z), radius(w).
s_surface_distances
float4
Surface distances: min visible, max visible, imin fade, imax fade
FieldSpacer Parameters
UUSL parameter
Type
Description
s_field_spacer_num_spacers
int2
Number of FieldSpacer nodes.
s_field_spacer_parameters[24]
float4
FieldSpacer parameters.
s_field_spacer_transforms[24]
float4
FieldSpacer transforms.
Notice
To use these parameters,
FIELD_SPACER should be defined.
FieldAnimation Parameters
UUSL parameter
Type
Description
s_field_animation_num_animations
int2
Number of FieldAnimation nodes.
s_field_animation_parameters[24]
float4
FieldAnimation parameters.
s_field_animation_transforms[24]
float4
FieldAnimation transforms.
Notice
To use these parameters,
FIELD_ANIMATION should be defined.
FieldHeight Parameters
UUSL parameter
Type
Description
s_field_height_num_heights
int2
Number of FieldHeight nodes.
s_field_height_projections[8]
float4x4
---.
s_field_height_planes[8]
float4
---.
s_field_height_parameters[8]
float4
FieldHeight parameters.
s_field_height_texture_ids[8]
float
---.
Notice
To use these parameters,
FIELD_HEIGHT should be defined.