Revision 466450b5
Added by Leszek Koltunski over 5 years ago
| src/main/java/org/distorted/library/main/MeshObject.java | ||
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package org.distorted.library.main; |
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import android.opengl.GLES31; |
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import java.nio.FloatBuffer; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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* If you want to render to a particular shape, extend from here, construct the attrib FloatBuffer |
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* and provide correct numVertices. |
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*/ |
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public abstract class MeshObject extends DistortedObject
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public abstract class MeshObject |
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{
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private static final int BYTES_PER_FLOAT = 4; |
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|
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boolean mShowNormals; |
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int numVertices; |
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FloatBuffer mVertAttribs; // packed: PosX,PosY,PosZ, NorX, NorY,NorZ, TexS, TexT
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int[] mAttVBO = new int[1]; // server-side packed vertex attributes |
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int[] mAttTFO = new int[1]; // transform feedback
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FloatBuffer mVertAttribs; // packed: PosX,PosY,PosZ, NorX,NorY,NorZ, TexS,TexT
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DistortedBuffer mVBO, mTFO; // main vertex buffer and transform feedback buffer
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final float zFactor; // strange workaround for the fact that we need to somehow store the 'depth' |
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// of the Mesh. Used in DistortedEffects. See DistortedTexture.getDepth(). |
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MeshObject(float factor) |
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{
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super(DistortedObject.NOT_CREATED_YET,DistortedObject.TYPE_USER); |
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zFactor = factor; |
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zFactor = factor; |
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mShowNormals = false; |
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recreate(); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// must be called from a thread holding OpenGL Context |
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// |
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// Do NOT release mVertAttribs etc as we will need them when we need to re-create the buffers after |
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// a loss of OpenGL context! |
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void create() |
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{
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if( mAttVBO[0]<0 ) |
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{
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GLES31.glGenBuffers(1, mAttVBO, 0); |
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GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, mAttVBO[0]); |
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GLES31.glBufferData(GLES31.GL_ARRAY_BUFFER, numVertices*VERTSIZE, mVertAttribs, GLES31.GL_STATIC_READ); |
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GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, 0); |
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} |
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if( mAttTFO[0]<0 && Distorted.GLSL >= 300 ) |
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{
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GLES31.glGenBuffers(1, mAttTFO, 0); |
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GLES31.glBindBuffer(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, mAttTFO[0]); |
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GLES31.glBufferData(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, numVertices*TFSIZE, null, GLES31.GL_STATIC_READ); |
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GLES31.glBindBuffer(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, 0); |
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} |
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mVBO = new DistortedBuffer(GLES31.GL_ARRAY_BUFFER , GLES31.GL_STATIC_READ); |
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mTFO = new DistortedBuffer(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, GLES31.GL_STATIC_READ); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// must be called from a thread holding OpenGL Context |
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void delete()
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void setData(int size, FloatBuffer buffer)
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{
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if( mAttVBO[0]>=0 ) |
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{
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GLES31.glDeleteBuffers(1, mAttVBO, 0); |
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mAttVBO[0] = -1; |
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} |
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if( mAttTFO[0]>=0 ) |
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{
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GLES31.glDeleteBuffers(1, mAttTFO, 0); |
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mAttTFO[0] = -1; |
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} |
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mVBO.setData(size*VERTSIZE, buffer); |
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mTFO.setData(size*TFSIZE , null ); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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void recreate()
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int getVBO()
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{
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mAttVBO[0] = -1; |
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mAttTFO[0] = -1; |
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return mVBO.mIndex[0]; |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// debugging only |
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String printDetails()
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int getTFO()
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{
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return getClass().getSimpleName()+" vertices:"+ numVertices;
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return mTFO.mIndex[0];
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// PUBLIC API |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* When rendering this Mesh, do we want to render the Normal vectors as well? |
| ... | ... | |
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{
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mShowNormals = (Distorted.GLSL >= 300 && show); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Release all internal resources. |
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*/ |
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public void markForDeletion() |
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{
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mVertAttribs.clear(); |
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mVBO.markForDeletion(); |
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mTFO.markForDeletion(); |
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} |
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} |
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Also available in: Unified diff
Beginnings of a separate package only with Meshes.