A <Program> node is linked to ASCII files containing a GLSL vertex, control, evaluation, geometry, fragment, or compute shader program. A <Program> may specify only a compute shader, or it must specify at least a vertex and fragment shader. Similarly, a <Program> that specifies a tessellation shader must specify both the control shader and evaluation shader. Objects of type <Program> are bound when a <Mesh> is rendered by way of the <Mesh>'s <Material> nodes being connected to one or more <Program> nodes.
Class registration and implementation information is as follows:
| Category | Documentation |
|---|---|
| Implementation | C++ |
| Module | Core-App-Geometry |
| Class Hierarchy | Node » Group » Program |
| Data Interface Name | Program |
| Type Status | Active |
| Is Final Type | Yes |
Properties are as follows:
| Property | Documentation |
|---|---|
| Pipeline Mode | A list of pipeline modes. Graphics is for vertex, control, evaluation, geometry, and fragment shaders. Compute is for compute shaders only. Mesh is for task, mesh, and fragment shaders. |
| Shading Language Version | A list of GLSL shading language versions. This is used to insert the #version directive in the shader source code. |
| Shading Language Profile | A list of GLSL shading language profiles. This is used to insert the #version directive in the shader source code. |
| Vertex Program File | The absolute or relative path to the vertex shader source code. |
| Tessellation Control Program File | The absolute or relative path to the tessellation control shader source code. |
| Tessellation Evaluation Program File | The absolute or relative path to the tessellation evaluation shader source code. |
| Geometry Program File | The absolute or relative path to the geometry shader source code. |
| Fragment Program File | The absolute or relative path to the fragment shader source code. |
| Compute Program File | The absolute or relative path to the compute shader source code. All other source entries must be blank to enable this option. |
| Task Program File | The absolute or relative path to the task shader source code. This option can only be set along with the mesh shader source and fragment shader source. |
| Mesh Program File | The absolute or relative path to the mesh shader source code. This option can only be set along with the mesh shader source and fragment shader source. |
| Pre-Compile Data Source | A node that you wish to traverse before the <Program> is rendered. |
| On Render Data Source | A node that you wish to traverse when the <Program> is rendered. |
Properties are as follows:
| Property | Documentation |
|---|---|
| Visible | Toggles the <Group>'s visible/invisible". Child nodes are not visible when their parent <Group>'s is invisible. |
| Collisions | Toggles collision detection on the <Group> node and its children". This is used for runtime export and has no effect in Scenome applications. |
| Cull | Toggles view volume culling on/off". modifying this parameter may cause incorrect culling and other unexpected consequences. |
| Preserve Camera | This option is undocumented at present. |
| Generic Data Source | This option provides the capability to connect a <Group>'s to a node that serves as a generic data source. |
| Bounding Box Frozen | Freezes the bounding box at its current size. This is often used as a runtime flag, and modifying this parameter may cause incorrect culling. |
| Minimum X | Displays the minimum bounding box coordinate on the X axis. |
| Minimum Y | Displays the minimum bounding box coordinate on the Y axis. |
| Minimum Z | Displays the minimum bounding box coordinate on the Z axis. |
| Maximum X | Displays the maximum bounding box coordinate on the X axis. |
| Maximum Y | Displays the maximum bounding box coordinate on the Y axis. |
| Maximum Z | Displays the maximum bounding box coordinate on the Z axis. |
| Transform Locked | Locks the node and prevents transformation of the node and its children. This is a runtime flag and has no effect in Scenome applications. |
| Position X | Displays the node's position on the X axis. |
| Position Y | Displays the node's position on the Y axis. |
| Position Z | Displays the node's position on the Z axis. |
| Orientation X | Displays the node's orientation on the X axis. |
| Orientation Y | Displays the node's orientation on the Y axis. |
| Orientation Z | Displays the node's orientation on the Z axis. |
| Scale X | Displays the node's scale on the X axis. |
| Scale Y | Displays the node's scale on the Y axis. |
| Scale Z | Displays the node's scale on the Z axis. |
| Billboard | Sets the node as a billboard. Billboards rotate to face the camera. This feature has been preserved for compatibility purposes, but this functionality should be implemented with geometry shaders. |
Properties are as follows:
| Property | Documentation |
|---|---|
| Name | Sets the name of the node. Do not use / or \ [forward slash and backslash] in the node name as this produces conflicts with resolving link nodes that reference external files. |
| Class | Sets the class of the node. |
| ID | Sets the ID of the node. This must be unique for each document, but different documents can use the same ID. |
| Export Disabled | Determines whether or not the node is exported during an export process, or possibly other purposes. |
| Guid | Enumerates the Node's GUID. |