/src/main/java/org/distorted/library/main/MeshObject.java - Annotate - Distorted Android

library / src / main / java / org / distorted / library / main / MeshObject.java @ 466450b5

1	d333eb6b	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
2			// Copyright 2016 Leszek Koltunski //
3			// //
4			// This file is part of Distorted. //
5			// //
6			// Distorted is free software: you can redistribute it and/or modify //
7			// it under the terms of the GNU General Public License as published by //
8			// the Free Software Foundation, either version 2 of the License, or //
9			// (at your option) any later version. //
10			// //
11			// Distorted is distributed in the hope that it will be useful, //
12			// but WITHOUT ANY WARRANTY; without even the implied warranty of //
13			// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
14			// GNU General Public License for more details. //
15			// //
16			// You should have received a copy of the GNU General Public License //
17			// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
18			///////////////////////////////////////////////////////////////////////////////////////////////////
19
20	fe82a979	Leszek Koltunski	package org.distorted.library.main;
21	6a06a912	Leszek Koltunski
22	e6519ac8	Leszek Koltunski	import android.opengl.GLES31;
23	6a06a912	Leszek Koltunski	import java.nio.FloatBuffer;
24
25			///////////////////////////////////////////////////////////////////////////////////////////////////
26	e0b6c593	Leszek Koltunski	/**
27	26df012c	Leszek Koltunski	* Abstract class which represents a Mesh, ie 3 arrays of Vertex attributes: 1) positions
28	e0b6c593	Leszek Koltunski	* 2) normals 3) texture coordinates.
29			* <p>
30	a51fe521	Leszek Koltunski	* If you want to render to a particular shape, extend from here, construct the attrib FloatBuffer
31			* and provide correct numVertices.
32	e0b6c593	Leszek Koltunski	*/
33	466450b5	Leszek Koltunski	public abstract class MeshObject
34	6a06a912	Leszek Koltunski	{
35	a51fe521	Leszek Koltunski	private static final int BYTES_PER_FLOAT = 4;
36	6a06a912	Leszek Koltunski
37	cab7c165	Leszek Koltunski	static final int POS_DATA_SIZE= 3;
38			static final int NOR_DATA_SIZE= 3;
39			static final int TEX_DATA_SIZE= 2;
40	3ef3364d	Leszek Koltunski
41	cab7c165	Leszek Koltunski	static final int OFFSET0 = 0;
42			static final int OFFSET1 = (POS_DATA_SIZE )*BYTES_PER_FLOAT;
43			static final int OFFSET2 = (POS_DATA_SIZE+NOR_DATA_SIZE )*BYTES_PER_FLOAT;
44	604b2899	Leszek Koltunski
45	3fc9327a	Leszek Koltunski	static final int TFSIZE = (POS_DATA_SIZE+POS_DATA_SIZE )*BYTES_PER_FLOAT;
46	cab7c165	Leszek Koltunski	static final int VERTSIZE= (POS_DATA_SIZE+NOR_DATA_SIZE+TEX_DATA_SIZE)*BYTES_PER_FLOAT;
47	a51fe521	Leszek Koltunski
48	3fc9327a	Leszek Koltunski	boolean mShowNormals;
49
50	a51fe521	Leszek Koltunski	int numVertices;
51	466450b5	Leszek Koltunski	FloatBuffer mVertAttribs; // packed: PosX,PosY,PosZ, NorX,NorY,NorZ, TexS,TexT
52
53			DistortedBuffer mVBO, mTFO; // main vertex buffer and transform feedback buffer
54	a51fe521	Leszek Koltunski
55			final float zFactor; // strange workaround for the fact that we need to somehow store the 'depth'
56			// of the Mesh. Used in DistortedEffects. See DistortedTexture.getDepth().
57	3ef3364d	Leszek Koltunski
58	6a06a912	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
59	3ef3364d	Leszek Koltunski
60	26df012c	Leszek Koltunski	MeshObject(float factor)
61	3ef3364d	Leszek Koltunski	{
62	466450b5	Leszek Koltunski	zFactor = factor;
63	3fc9327a	Leszek Koltunski	mShowNormals = false;
64	42571056	Leszek Koltunski
65	466450b5	Leszek Koltunski	mVBO = new DistortedBuffer(GLES31.GL_ARRAY_BUFFER , GLES31.GL_STATIC_READ);
66			mTFO = new DistortedBuffer(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, GLES31.GL_STATIC_READ);
67	42571056	Leszek Koltunski	}
68
69			///////////////////////////////////////////////////////////////////////////////////////////////////
70
71	466450b5	Leszek Koltunski	void setData(int size, FloatBuffer buffer)
72	42571056	Leszek Koltunski	{
73	466450b5	Leszek Koltunski	mVBO.setData(size*VERTSIZE, buffer);
74			mTFO.setData(size*TFSIZE , null );
75	42571056	Leszek Koltunski	}
76
77			///////////////////////////////////////////////////////////////////////////////////////////////////
78
79	466450b5	Leszek Koltunski	int getVBO()
80	42571056	Leszek Koltunski	{
81	466450b5	Leszek Koltunski	return mVBO.mIndex[0];
82	42571056	Leszek Koltunski	}
83
84			///////////////////////////////////////////////////////////////////////////////////////////////////
85
86	466450b5	Leszek Koltunski	int getTFO()
87	226144d0	leszek	{
88	466450b5	Leszek Koltunski	return mTFO.mIndex[0];
89	226144d0	leszek	}
90	42571056	Leszek Koltunski
91	466450b5	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
92			// PUBLIC API
93	3fc9327a	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
94			/**
95			* When rendering this Mesh, do we want to render the Normal vectors as well?
96	420836fc	leszek	* <p>
97			* Will work only on OpenGL ES >= 3.0 devices.
98	3fc9327a	Leszek Koltunski	*
99			* @param show Controls if we render the Normal vectors or not.
100			*/
101			public void setShowNormals(boolean show)
102			{
103	420836fc	leszek	mShowNormals = (Distorted.GLSL >= 300 && show);
104	3fc9327a	Leszek Koltunski	}
105	466450b5	Leszek Koltunski
106			///////////////////////////////////////////////////////////////////////////////////////////////////
107			/**
108			* Release all internal resources.
109			*/
110			public void markForDeletion()
111			{
112			mVertAttribs.clear();
113
114			mVBO.markForDeletion();
115			mTFO.markForDeletion();
116			}
117	6a06a912	Leszek Koltunski	}
118	226144d0	leszek
119	3fc9327a	Leszek Koltunski

Project

General

Profile

Distorted Android

library / src / main / java / org / distorted / library / main / MeshObject.java @ 466450b5