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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski //
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// //
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Leszek Koltunski
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// This file is part of Distorted. //
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d333eb6b
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Leszek Koltunski
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// //
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46b572b5
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Leszek Koltunski
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// Distorted is free software: you can redistribute it and/or modify //
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d333eb6b
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Leszek Koltunski
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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Leszek Koltunski
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// Distorted is distributed in the hope that it will be useful, //
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d333eb6b
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Leszek Koltunski
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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46b572b5
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Leszek Koltunski
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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d333eb6b
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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Leszek Koltunski
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package org.distorted.library.mesh;
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Leszek Koltunski
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Leszek Koltunski
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import android.opengl.GLES31;
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c90aca24
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Leszek Koltunski
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import android.opengl.Matrix;
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Leszek Koltunski
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fa8bc998
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Leszek Koltunski
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import org.distorted.library.effect.MatrixEffect;
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7602a827
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Leszek Koltunski
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import org.distorted.library.main.DistortedLibrary;
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import org.distorted.library.main.InternalBuffer;
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da681e7e
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Leszek Koltunski
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import org.distorted.library.program.DistortedProgram;
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Leszek Koltunski
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.FloatBuffer;
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c90aca24
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Leszek Koltunski
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import java.util.ArrayList;
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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e0b6c593
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Leszek Koltunski
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/**
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e5ba319d
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Leszek Koltunski
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* Abstract class which represents a Mesh, ie an array of vertices (rendered as a TRIANGLE_STRIP).
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e0b6c593
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Leszek Koltunski
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* <p>
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da681e7e
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Leszek Koltunski
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* If you want to render to a particular shape, extend from here, construct a float array
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* containing per-vertex attributes, and call back setAttribs().
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e0b6c593
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Leszek Koltunski
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*/
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715e7726
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public abstract class MeshBase
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{
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// sizes of attributes of an individual vertex.
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private static final int POS_DATA_SIZE= 3; // vertex coordinates: x,y,z
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private static final int NOR_DATA_SIZE= 3; // normal vector: x,y,z
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private static final int INF_DATA_SIZE= 3; // 'inflate' vector: x,y,z
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private static final int TEX_DATA_SIZE= 2; // texture coordinates: s,t
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static final int POS_ATTRIB = 0;
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static final int NOR_ATTRIB = POS_DATA_SIZE;
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static final int INF_ATTRIB = POS_DATA_SIZE + NOR_DATA_SIZE;
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static final int TEX_ATTRIB = POS_DATA_SIZE + NOR_DATA_SIZE + INF_DATA_SIZE;
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static final int VERT_ATTRIBS = POS_DATA_SIZE + NOR_DATA_SIZE + INF_DATA_SIZE + TEX_DATA_SIZE; // number of attributes of a 'normal' vertex
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static final int TRAN_ATTRIBS = POS_DATA_SIZE + POS_DATA_SIZE; // number of attributes of a transform feedback vertex
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private static final int BYTES_PER_FLOAT = 4;
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private static final int OFFSET_POS = POS_ATTRIB*BYTES_PER_FLOAT;
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private static final int OFFSET_NOR = NOR_ATTRIB*BYTES_PER_FLOAT;
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private static final int OFFSET_INF = INF_ATTRIB*BYTES_PER_FLOAT;
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private static final int OFFSET_TEX = TEX_ATTRIB*BYTES_PER_FLOAT;
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private static final int TRAN_SIZE = TRAN_ATTRIBS*BYTES_PER_FLOAT;
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private static final int VERT_SIZE = VERT_ATTRIBS*BYTES_PER_FLOAT;
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private boolean mShowNormals; // when rendering this mesh, draw normal vectors?
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private InternalBuffer mVBO, mTFO; // main vertex buffer and transform feedback buffer
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private int mNumVertices;
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private float[] mVertAttribs; // packed: PosX,PosY,PosZ, NorX,NorY,NorZ, InfX,InfY,InfZ, TexS,TexT
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private float mInflate;
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c90aca24
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private class Component
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{
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private int mEndIndex;
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private float[] mTextureMap;
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Component()
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{
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mTextureMap = new float[8];
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mTextureMap[ 0] = 0.0f; // LLX
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mTextureMap[ 1] = 0.0f; // LLY
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mTextureMap[ 2] = 0.0f; // ULX
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mTextureMap[ 3] = 1.0f; // ULY
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mTextureMap[ 4] = 1.0f; // URX
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mTextureMap[ 5] = 1.0f; // URY
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mTextureMap[ 6] = 1.0f; // LRX
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mTextureMap[ 7] = 0.0f; // LRY
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}
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Component(Component original)
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{
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mEndIndex = original.mEndIndex;
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mTextureMap = new float[8];
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System.arraycopy(original.mTextureMap,0,mTextureMap,0,8);
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}
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}
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private ArrayList<Component> mComponent;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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3ef3364d
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c90aca24
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Leszek Koltunski
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MeshBase()
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{
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mShowNormals = false;
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c90aca24
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mInflate = 0.0f;
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mComponent = new ArrayList<>();
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mComponent.add(new Component());
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mVBO = new InternalBuffer(GLES31.GL_ARRAY_BUFFER , GLES31.GL_STATIC_READ);
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mTFO = new InternalBuffer(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, GLES31.GL_STATIC_READ);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// copy constructor
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MeshBase(MeshBase original)
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{
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mShowNormals = original.mShowNormals;
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mInflate = original.mInflate;
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int size = original.mComponent.size();
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mComponent = new ArrayList<>();
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for(int i=0; i<size; i++)
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{
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Component comp = new Component(original.mComponent.get(i));
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mComponent.add(comp);
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}
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Leszek Koltunski
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mVBO = new InternalBuffer(GLES31.GL_ARRAY_BUFFER , GLES31.GL_STATIC_READ);
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mTFO = new InternalBuffer(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, GLES31.GL_STATIC_READ);
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c90aca24
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Leszek Koltunski
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System.arraycopy(original.mVertAttribs,0,mVertAttribs,0,original.mNumVertices*VERT_ATTRIBS);
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setAttribs(mVertAttribs);
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42571056
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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6c00149d
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Leszek Koltunski
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// when a derived class is done computing its mesh, it has to call this method.
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42571056
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Leszek Koltunski
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227b9bca
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void setAttribs(float[] vertexAttribs)
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42571056
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Leszek Koltunski
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{
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227b9bca
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mNumVertices = vertexAttribs.length/VERT_ATTRIBS;
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fa8bc998
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Leszek Koltunski
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mVertAttribs = vertexAttribs;
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da681e7e
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Leszek Koltunski
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c90aca24
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Leszek Koltunski
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mComponent.get(0).mEndIndex = mNumVertices;
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fa8bc998
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Leszek Koltunski
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FloatBuffer attribs = ByteBuffer.allocateDirect(mNumVertices*VERT_SIZE).order(ByteOrder.nativeOrder()).asFloatBuffer();
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attribs.put(vertexAttribs).position(0);
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da681e7e
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Leszek Koltunski
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fa8bc998
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Leszek Koltunski
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mVBO.setData(mNumVertices*VERT_SIZE, attribs);
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mTFO.setData(mNumVertices*TRAN_SIZE, null );
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42571056
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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6c00149d
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Leszek Koltunski
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/**
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* Not part of public API, do not document (public only because has to be used from the main package)
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*
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* @y.exclude
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*/
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da681e7e
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Leszek Koltunski
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public int getTFO()
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42571056
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Leszek Koltunski
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{
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da681e7e
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Leszek Koltunski
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return mTFO.mIndex[0];
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42571056
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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6c00149d
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Leszek Koltunski
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/**
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* Not part of public API, do not document (public only because has to be used from the main package)
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*
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* @y.exclude
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*/
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da681e7e
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public int getNumVertices()
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226144d0
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leszek
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{
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da681e7e
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Leszek Koltunski
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return mNumVertices;
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226144d0
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leszek
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}
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42571056
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Leszek Koltunski
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6c00149d
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Not part of public API, do not document (public only because has to be used from the main package)
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*
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* @y.exclude
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*/
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da681e7e
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Leszek Koltunski
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public void bindVertexAttribs(DistortedProgram program)
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6c00149d
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Leszek Koltunski
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{
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da681e7e
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Leszek Koltunski
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GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, mVBO.mIndex[0] );
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227b9bca
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GLES31.glVertexAttribPointer(program.mAttribute[0], POS_DATA_SIZE, GLES31.GL_FLOAT, false, VERT_SIZE, OFFSET_POS);
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GLES31.glVertexAttribPointer(program.mAttribute[1], NOR_DATA_SIZE, GLES31.GL_FLOAT, false, VERT_SIZE, OFFSET_NOR);
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GLES31.glVertexAttribPointer(program.mAttribute[2], INF_DATA_SIZE, GLES31.GL_FLOAT, false, VERT_SIZE, OFFSET_INF);
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GLES31.glVertexAttribPointer(program.mAttribute[3], TEX_DATA_SIZE, GLES31.GL_FLOAT, false, VERT_SIZE, OFFSET_TEX);
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Leszek Koltunski
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GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, 0);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Not part of public API, do not document (public only because has to be used from the main package)
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*
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* @y.exclude
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*/
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public void bindTransformAttribs(DistortedProgram program)
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{
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GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, mTFO.mIndex[0] );
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227b9bca
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Leszek Koltunski
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GLES31.glVertexAttribPointer(program.mAttribute[0], POS_DATA_SIZE, GLES31.GL_FLOAT, false, 0, 0);
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GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, 0);
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6c00149d
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}
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7a5e538a
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Not part of public API, do not document (public only because has to be used from the main package)
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*
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* @y.exclude
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*/
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public void setInflate(float inflate)
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{
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mInflate = inflate;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Not part of public API, do not document (public only because has to be used from the main package)
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*
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* @y.exclude
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*/
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public float getInflate()
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{
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return mInflate;
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}
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227 |
466450b5
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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228 |
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// PUBLIC API
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229 |
3fc9327a
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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231 |
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* When rendering this Mesh, do we want to render the Normal vectors as well?
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232 |
420836fc
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leszek
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* <p>
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233 |
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* Will work only on OpenGL ES >= 3.0 devices.
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234 |
3fc9327a
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*
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* @param show Controls if we render the Normal vectors or not.
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*/
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public void setShowNormals(boolean show)
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{
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239 |
7602a827
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Leszek Koltunski
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mShowNormals = (DistortedLibrary.GLSL >= 300 && show);
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240 |
3fc9327a
|
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}
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241 |
466450b5
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Leszek Koltunski
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242 |
6c00149d
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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243 |
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/**
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244 |
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* When rendering this mesh, should we also draw the normal vectors?
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245 |
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*
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246 |
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* @return <i>true</i> if we do render normal vectors
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247 |
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*/
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248 |
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public boolean getShowNormals()
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249 |
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{
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250 |
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return mShowNormals;
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251 |
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}
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252 |
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253 |
466450b5
|
Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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254 |
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/**
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255 |
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* Release all internal resources.
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256 |
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*/
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257 |
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public void markForDeletion()
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258 |
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{
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259 |
fa8bc998
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mVertAttribs = null;
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260 |
466450b5
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Leszek Koltunski
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mVBO.markForDeletion();
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262 |
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mTFO.markForDeletion();
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}
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264 |
fa8bc998
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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266 |
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/**
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267 |
c90aca24
|
Leszek Koltunski
|
* Apply all Effects to the vertex mesh. Overwrite the mesh in place.
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268 |
fa8bc998
|
Leszek Koltunski
|
* <p>
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269 |
c90aca24
|
Leszek Koltunski
|
* This is a static, permanent modification of the vertices contained in this Mesh. If the effects
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270 |
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* contain any Dynamics, they will be evaluated at 0.
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271 |
fa8bc998
|
Leszek Koltunski
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*
|
272 |
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* Please note that calling this once with the complete list of Effects will be much faster than
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273 |
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* calling it repeatedly with one Effect at a time, as we have to reallocate the array of vertices
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274 |
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* each time.
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275 |
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*/
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276 |
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public void apply(MatrixEffect[] effects)
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277 |
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{
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278 |
c90aca24
|
Leszek Koltunski
|
float[][] matrix = new float[effects.length][16];
|
279 |
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float[] tmp;
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280 |
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float[] array = new float[4];
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281 |
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float x,y,z;
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282 |
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int numEffects = 0;
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283 |
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284 |
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for(MatrixEffect eff: effects)
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{
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c90aca24
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Leszek Koltunski
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if( eff!=null )
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{
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Leszek Koltunski
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Matrix.setIdentityM(matrix[numEffects],0);
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eff.compute(array,0,0,0);
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eff.apply(matrix[numEffects], array, 0);
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numEffects++;
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}
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}
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c90aca24
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Leszek Koltunski
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for(int index=0; index<mNumVertices; index+=VERT_ATTRIBS )
|
296 |
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{
|
297 |
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for(int mat=0; mat<numEffects; mat++)
|
298 |
|
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{
|
299 |
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tmp = matrix[mat];
|
300 |
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|
301 |
|
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x = mVertAttribs[index+POS_ATTRIB ];
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y = mVertAttribs[index+POS_ATTRIB+1];
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z = mVertAttribs[index+POS_ATTRIB+2];
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|
305 |
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mVertAttribs[index+POS_ATTRIB ] = tmp[0]*x + tmp[4]*y + tmp[ 8]*z + tmp[12];
|
306 |
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mVertAttribs[index+POS_ATTRIB+1] = tmp[1]*x + tmp[5]*y + tmp[ 9]*z + tmp[13];
|
307 |
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mVertAttribs[index+POS_ATTRIB+2] = tmp[2]*x + tmp[6]*y + tmp[10]*z + tmp[14];
|
308 |
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|
309 |
|
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x = mVertAttribs[index+NOR_ATTRIB ];
|
310 |
|
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y = mVertAttribs[index+NOR_ATTRIB+1];
|
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z = mVertAttribs[index+NOR_ATTRIB+2];
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|
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|
313 |
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mVertAttribs[index+NOR_ATTRIB ] = tmp[0]*x + tmp[4]*y + tmp[ 8]*z;
|
314 |
|
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mVertAttribs[index+NOR_ATTRIB+1] = tmp[1]*x + tmp[5]*y + tmp[ 9]*z;
|
315 |
|
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mVertAttribs[index+NOR_ATTRIB+2] = tmp[2]*x + tmp[6]*y + tmp[10]*z;
|
316 |
|
|
|
317 |
|
|
x = mVertAttribs[index+INF_ATTRIB ];
|
318 |
|
|
y = mVertAttribs[index+INF_ATTRIB+1];
|
319 |
|
|
z = mVertAttribs[index+INF_ATTRIB+2];
|
320 |
|
|
|
321 |
|
|
mVertAttribs[index+INF_ATTRIB ] = tmp[0]*x + tmp[4]*y + tmp[ 8]*z;
|
322 |
|
|
mVertAttribs[index+INF_ATTRIB+1] = tmp[1]*x + tmp[5]*y + tmp[ 9]*z;
|
323 |
|
|
mVertAttribs[index+INF_ATTRIB+2] = tmp[2]*x + tmp[6]*y + tmp[10]*z;
|
324 |
|
|
}
|
325 |
|
|
}
|
326 |
|
|
|
327 |
|
|
FloatBuffer attribs = ByteBuffer.allocateDirect(mNumVertices*VERT_SIZE).order(ByteOrder.nativeOrder()).asFloatBuffer();
|
328 |
|
|
attribs.put(mVertAttribs).position(0);
|
329 |
|
|
|
330 |
|
|
mVBO.setData(mNumVertices*VERT_SIZE, attribs);
|
331 |
|
|
mTFO.setData(mNumVertices*TRAN_SIZE, null );
|
332 |
|
|
}
|
333 |
|
|
|
334 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
335 |
|
|
/**
|
336 |
|
|
* Join a list of Meshes into this one.
|
337 |
|
|
* <p>
|
338 |
|
|
* Please note that calling this once with the complete list of Meshes will be much faster than
|
339 |
|
|
* calling it repeatedly with one Mesh at a time, as we have to reallocate the array of vertices
|
340 |
|
|
* each time.
|
341 |
|
|
*/
|
342 |
|
|
public void join(MeshBase[] meshes)
|
343 |
|
|
{
|
344 |
|
|
|
345 |
fa8bc998
|
Leszek Koltunski
|
}
|
346 |
6a06a912
|
Leszek Koltunski
|
}
|
347 |
226144d0
|
leszek
|
|
348 |
3fc9327a
|
Leszek Koltunski
|
|