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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 4.iso
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src
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REALITY
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distort
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ripple.h
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C/C++ Source or Header
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1994-08-01
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57 lines
/*
* Copyright 1993, 1994, Silicon Graphics, Inc.
* All Rights Reserved.
*
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
* the contents of this file may not be disclosed to third parties, copied or
* duplicated in any form, in whole or in part, without the prior written
* permission of Silicon Graphics, Inc.
*
* RESTRICTED RIGHTS LEGEND:
* Use, duplication or disclosure by the Government is subject to restrictions
* as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
* and Computer Software clause at DFARS 252.227-7013, and/or in similar or
* successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
* rights reserved under the Copyright Laws of the United States.
*/
/*
ripple.h
Drew Olbrich, 1992
*/
#ifndef _RIPPLE
#define _RIPPLE
#include "defs.h"
#define RIPPLE_LENGTH 2048
#define RIPPLE_CYCLES 18
#define RIPPLE_AMPLITUDE 0.125
#define RIPPLE_STEP 7
#define RIPPLE_COUNT 7
typedef struct { /* precomputed displacement vector table */
float dx[2];
int r; /* distance from origin, in pixels */
} RIPPLE_VECTOR;
typedef struct { /* precomputed ripple amplitude table */
float amplitude;
} RIPPLE_AMP;
typedef struct {
float x[2]; /* initial vertex location */
float t[2]; /* texture coordinate */
float dt[2]; /* default texture coordinate */
} RIPPLE_VERTEX;
extern RIPPLE_VECTOR ripple_vector[GRID_SIZE_X][GRID_SIZE_Y];
extern RIPPLE_AMP ripple_amp[RIPPLE_LENGTH];
void ripple_init();
void ripple_dynamics(int mousex, int mousey);
void ripple_redraw();
void ripple_click(int mousex, int mousey, int state);
#endif