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RAY_DemoMountain.h
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1 /*
2  * Copyright (c) 2021
3  * Side Effects Software Inc. All rights reserved.
4  *
5  * Redistribution and use of Houdini Development Kit samples in source and
6  * binary forms, with or without modification, are permitted provided that the
7  * following conditions are met:
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  * 2. The name of Side Effects Software may not be used to endorse or
11  * promote products derived from this software without specific prior
12  * written permission.
13  *
14  * THIS SOFTWARE IS PROVIDED BY SIDE EFFECTS SOFTWARE `AS IS' AND ANY EXPRESS
15  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
17  * NO EVENT SHALL SIDE EFFECTS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
19  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
20  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
21  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
22  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
23  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  *
25  *----------------------------------------------------------------------------
26  * This is a sample mantra procedural to subdivide a triangle as a fractal.
27  */
28 
29 #ifndef __RAY_DemoBox__
30 #define __RAY_DemoBox__
31 
32 #include <UT/UT_BoundingBox.h>
33 #include <RAY/RAY_Procedural.h>
34 
35 namespace HDK_Sample {
36 
37 class FractalPoint {
38 public:
40  {
41  pos.assign(x, y, z);
42  seed = s;
43  }
45  int seed;
46 };
47 
49 public:
50  RAY_DemoMountain(int splits=1);
51  ~RAY_DemoMountain() override;
52 
53  const char *className() const override;
54  int initialize(const UT_BoundingBox *) override;
55  void getBoundingBox(UT_BoundingBox &box) override;
56  void render() override;
57 
58  /// Split into 4 new procedurals (each rendering a triangle)
59  void fractalSplit();
60 
61  /// Render triangle geometry
62  void fractalRender();
63 
64 private:
65  /// Compute bounding box (including displacement or not)
66  void computeBounds(UT_BoundingBox &box,
67  bool include_displace);
68  FractalPoint myP[3];
69  int mySplits;
70 };
71 
72 } // End HDK_Sample namespace
73 
74 #endif
GLdouble s
Definition: glew.h:1390
OIIO_API std::vector< std::string > splits(string_view str, string_view sep="", int maxsplit=-1)
int initialize(const UT_BoundingBox *) override
void fractalSplit()
Split into 4 new procedurals (each rendering a triangle)
Procedural primitive for mantra (RAY)
void getBoundingBox(UT_BoundingBox &box) override
The bounding box is the "object space" bounds of the procedural.
GLdouble GLdouble z
Definition: glew.h:1559
GLint GLint GLint GLint GLint x
Definition: glew.h:1252
GLint GLint GLint GLint GLint GLint y
Definition: glew.h:1252
void assign(fpreal x, fpreal y, fpreal z, uint s)
void assign(T xx=0.0f, T yy=0.0f, T zz=0.0f)
Set the values of the vector components.
Definition: UT_Vector3.h:541
const char * className() const override
fpreal64 fpreal
Definition: SYS_Types.h:277
void fractalRender()
Render triangle geometry.
unsigned int uint
Definition: SYS_Types.h:45