Revision 1e672c1d
Added by Leszek Koltunski almost 4 years ago
| src/main/java/org/distorted/library/mesh/MeshBase.java | ||
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*/ |
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public abstract class MeshBase |
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{
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static final float DEFAULT_TAG = 0xffffffff;
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static final float DEFAULT_ASSOCIATION = 0xffffffff;
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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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private static final int TAG_DATA_SIZE= 1; // tag, a single float
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private static final int ASS_DATA_SIZE= 1; // association, a single float
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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 = 0; |
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static final int TAG_ATTRIB = TEX_DATA_SIZE;
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static final int ASS_ATTRIB = TEX_DATA_SIZE;
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static final int VERT1_ATTRIBS= POS_DATA_SIZE + NOR_DATA_SIZE + INF_DATA_SIZE; // number of attributes of a vertex (the part changed by preapply) |
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static final int VERT2_ATTRIBS= TEX_DATA_SIZE + TAG_DATA_SIZE; // number of attributes of a vertex (the 'preapply invariant' part)
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static final int VERT2_ATTRIBS= TEX_DATA_SIZE + ASS_DATA_SIZE; // number of attributes of a vertex (the 'preapply invariant' part)
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static final int TRAN_ATTRIBS = POS_DATA_SIZE + NOR_DATA_SIZE + INF_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_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 OFFSET_TAG = TAG_ATTRIB*BYTES_PER_FLOAT;
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private static final int OFFSET_TAG = ASS_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 VERT1_SIZE = VERT1_ATTRIBS*BYTES_PER_FLOAT; |
| ... | ... | |
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GLES30.glVertexAttribPointer(program.mAttribute[2], INF_DATA_SIZE, GLES30.GL_FLOAT, false, VERT1_SIZE, OFFSET_INF); |
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GLES30.glBindBuffer(GLES30.GL_ARRAY_BUFFER, index2 ); |
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GLES30.glVertexAttribPointer(program.mAttribute[3], TEX_DATA_SIZE, GLES30.GL_FLOAT, false, VERT2_SIZE, OFFSET_TEX); |
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GLES30.glVertexAttribPointer(program.mAttribute[4], TAG_DATA_SIZE, GLES30.GL_FLOAT, false, VERT2_SIZE, OFFSET_TAG);
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GLES30.glVertexAttribPointer(program.mAttribute[4], ASS_DATA_SIZE, GLES30.GL_FLOAT, false, VERT2_SIZE, OFFSET_TAG);
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GLES30.glBindBuffer(GLES30.GL_ARRAY_BUFFER, 0); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Set a component's tag.
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* Set Effect association.
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* |
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* A 'tag' of a component associates all vertices which belong to the component with all Vertex Effects
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* with a matching tag - i.e. one can set a tag of an Effect and of a Component, and the Effect will
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* only be active on vertices of Components such that (effect tag) & (component tag) != 0.
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* This creates an association between a Component of this Mesh and a Vertex Effect.
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* One can set the association of an Effect and of a Component, and the Effect will only be active on
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* vertices of Components such that (effect assoc) & (component assoc) != 0. (see VertexEffect.retSection() )
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* |
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* The point: this way we can configure the system so that each Vertex Effect acts only on a certain |
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* subset of the Mesh, thus potentially significantly reducing the number of render calls.
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* subset of a Mesh, thus potentially significantly reducing the number of render calls.
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*/ |
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public void setTag(int component, int tag)
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public void setEffectAssociation(int component, int association)
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{
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int num = mComponent.size(); |
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int sta = component>0 ? mComponent.get(component-1).mEndIndex+1 : 0; |
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int end = mComponent.get(component).mEndIndex; |
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sta = sta*VERT2_ATTRIBS + TAG_ATTRIB;
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end = end*VERT2_ATTRIBS + TAG_ATTRIB;
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sta = sta*VERT2_ATTRIBS + ASS_ATTRIB;
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end = end*VERT2_ATTRIBS + ASS_ATTRIB;
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for(int i=sta; i<=end; i+=VERT2_ATTRIBS) |
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{
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mVertAttribs2[i] = tag;
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mVertAttribs2[i] = association;
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} |
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mVBO2.invalidate(); |
Also available in: Unified diff
Change 'tag' to a more appropriate name - 'association'.