Sure, it works perfectly well, here is the set of functions that DarkShader provides:
void dbShaderDataStart( ); //must be called before any other commands
void dbReloadShaderDisplayPointer( ); //must be called after any "set display mode" calls
void dbMakeDynamicCubeMap( int iID, int size ); //creates a cube map of the specified resolution, valid ID = 1-10
void dbMakeDynamicCubeMap( int iID, int size, int mipmapped ); //creates a cube map of the specified resolution, with mipmap parameter
void dbDeleteDynamicCubeMap( int iID ); //deletes a cubemap
void dbRenderDynamicCubeMap( int iID, int camera, float x, float y, float z ); //renders a cube map with a camera (-1 for temp camera) at a position
void dbApplyCubeMapToObject( int objID, int stage, int iID, int shader ); //applies a cube map to an object stage, use shader=1 if using an object shader
void dbApplyCubeMapToObject( int objID, int stage, int iID ); //applies a cube map to an object stage, shader=1
int dbDynamicCubeMapExist( int iID ); //returns 1 if cube map exists
void dbLoadCameraEffect( char* filename, int effectID, int loadTex ); //Loads a camera effect into an ID, separate from object effect IDs
void dbDeleteCameraEffect( int effectID ); //delete a camera effect
int dbCameraEffectExist( int effectID ); //returns 1 if effect exists
void dbSetCameraEffectConstantFloat( int effectID, char* varName, float value ); //set a float variable in a camera effect
void dbSetCameraEffectConstantInt( int effectID, char* varName, int value ); //set an integer variable in a camera effect
void dbSetCameraEffectConstantVector( int effectID, char* varName, int vector ); //set a float vector variable in a camera effect, uses dbvector4
void dbSetCameraEffect( int camera, int effect, int image ); //set an effect to a camera, and output to an image, this command will also take control of image 65499
void dbRemoveCameraEffect( int camera ); //remove an effect from an image
void dbSyncCamera( int camera ); //render a camera containing a camera effect, no other cameras synced, only output is to the image from SetCameraEffect
