Open Inventor Release 2024.1.3
 
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vvizBlending_frag.h
1/*=======================================================================
2 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), ***
3 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. ***
4 *** ***
5 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS ***
6 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR ***
7 *** WRITTEN AUTHORIZATION OF FEI S.A.S. ***
8 *** ***
9 *** RESTRICTED RIGHTS LEGEND ***
10 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS ***
11 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN ***
12 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT ***
13 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN ***
14 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. ***
15 *** ***
16 *** COPYRIGHT (C) 1996-2017 BY FEI S.A.S, ***
17 *** BORDEAUX, FRANCE ***
18 *** ALL RIGHTS RESERVED ***
19**=======================================================================*/
20/*=======================================================================
21** Author : VSG (MMM YYYY)
22**=======================================================================*/
23
24#ifndef VVIZBLENDING_FRAG_H
25#define VVIZBLENDING_FRAG_H
26
27/* Returns true if src should ne considered as first hit (used to set depth of pixel) */
28bool VVizIsFirstBlend(in bool hasHit,in vec4 dest, in vec4 src);
29
30/* Return true if alpha should be considered as first hitBoundary (regardingopacityThreshold) */
31bool VVizIsFirstBoundary(in bool hasHitBoundary, in float curStep, in float alpha);
32
33/* Returns true if calling VVizBlendEquation(dest,src) would impact result */
34bool VVizHasBlendImpact(in vec4 dest, in vec4 src);
35
36/* Returns the color resulting of dest and src blending */
37vec4 VVizBlendEquation(in vec4 dest, in vec4 src);
38
39/* Return true if dest cannot be blend more (used to stop raycast) */
40bool VVizBlendMaxReached(in vec4 dest);
41
42#endif