GetRequirements Callback Reference

    RTSHADER_API bool (*RTS_Shader3_GetRequirements)
    {
        IRTSExecutionState  *in_pExecState,
        void                *in_pParams,
        XSI_RTS_Primitive   *in_pGeom,
        void                **io_pShaderInstanceData,
        ULONG               in_lRequirement,
        ULONG               *out_pRequirementValue
    }

Use this callback to set whether any of the requirements listed in the eXSI_RTS_RequirementType enum are required or not by returning true or false in the out_pRequirementValue parameter.

Parameters:

in_pExecState	The execution state interface
in_pParams	The shader property page parameters
in_pGeom	The geometry information

Return values:

io_pShaderInstanceData

Pointer to the shader's instance user data

Parameters:

in_lRequirement

The requirement identifier

Return values:

out_pRequirementValue

The returned requirement value

Returns:

Success/failure

See also:

IRTSExecutionState, Realtime Shader Callbacks, cus_rtshad_ExecutionFlow Execution Flow