UUSL Parameters
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 |
Camera Parameters
| UUSL parameter | Type | Description |
|---|---|---|
| s_projection | float4x4 | Projection matrix. |
| s_imodelview | float4x4 | Inverse Model-View matrix. |
| s_old_imodelview | float4x4 | Old inverse Model-View matrix. |
| s_perspective | float4 | Perspective parameters: s_projection.m00, s_projection.m11, s_projection.m02 ,s_projection.m12 |
| s_orthographic | float4 | Orthographic parameters: s_projection.m00, s_projection.m11, s_projection.m03, s_projection.m13. |
| s_camera_position | float3 | Camera position. |
| s_camera_height | float | z-component of the camera position. |
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. |
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_iradius | float4 | The light inverse radius. |
| s_light_transform | float4x4 | Light transformation matrix. |
| s_light_projection | float4x4 | Light projection matrix. |
| s_light_shadow_offset | float3 | Light shadow offset. |
| s_light_shadow_iradius | float4 | Light shadow inverse radius. |
| 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. |
Light World Parameters
| UUSL parameter | Type | Description |
|---|---|---|
| s_light_shadow_offsets[4] | float4 | World light shadow offsets. |
| s_light_shadow_projections[4] | float4x4 | World light shadow projection matrix. |
| s_light_shadow_splits | int | World light shadow splits. |
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. |
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. |
| s_material_reflection_center | float3 | Ambient center. |
| s_material_reflection_color | float3 | Ambient color. |
| s_material_reflection_radius | float | Ambient radius. |
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. |
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. |
Last update: 2017-07-03
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