fhrt_shadow.c File Reference

Manages the creation of occlusion-data. More...

#include <SDL/SDL_thread.h>
#include "rendermodes.h"
#include "macros_isoval.h"

Defines
#define	HULL_ADVANCE_SHADOW
Functions
void	smooth_shadow (void)
	Smooth the Volumedataset.
int	shadow_calc_thread (void *a)
	Calculate occlusions for shadows.
void	precalculate_shadows (void)
	Controls the shadow-calculation thread.
void	set_occlusion (uint16_t occ)
	Resets the initial occlusion-data to a specific value.

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Detailed Description

Manages the creation of occlusion-data.

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Function Documentation

void set_occlusion (  uint16_t  occ  )

Resets the initial occlusion-data to a specific value. Parameters: occ  The value to clear the "shadow-buffer" to.

int shadow_calc_thread (  void *  a  )

Calculate occlusions for shadows. The calculated data is stored so that it can be used during rendering without having to calculate additional visibilities to the lightsource Parameters: a  Unused...but that's the way, SDL expects a thread to be.

void smooth_shadow (  void   )

Smooth the Volumedataset. Blurs the 3D-data with a "3D-style" average-filter as is commonly used in digital-2D-image-processing

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