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Disable fog on meshes using additive blending.

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git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@156 ed5b42cb-e716-0410-a449-f6a68f950b19
This commit is contained in:
Andrzej Kapolka
2007-02-17 00:10:03 +00:00
parent a0a1f88278
commit a09600c969
1 changed files with 83 additions and 76 deletions
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src/java/com/threerings/jme/model/ModelMesh.java
+83 -76
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@@ -49,6 +49,7 @@ import com.jme.scene.batch.GeomBatch;
import com.jme.scene.batch.TriangleBatch;
import com.jme.scene.state.AlphaState;
import com.jme.scene.state.CullState;
import com.jme.scene.state.FogState;
import com.jme.scene.state.LightState;
import com.jme.scene.state.RenderState;
import com.jme.scene.state.TextureState;
@@ -78,7 +79,7 @@ public class ModelMesh extends TriMesh
{
super("mesh");
}
/**
* Creates a mesh with no vertex data.
*/
@@ -86,14 +87,14 @@ public class ModelMesh extends TriMesh
{
super(name);
}
@Override // documentation inherited
public int hashCode ()
{
// hash on the name rather than the identity for consistent ordering
return getName().hashCode();
}
/**
* Reconfigures this model with a new set of (sub-)properties. Textures
* must be (re-)resolved after calling this method.
@@ -103,7 +104,7 @@ public class ModelMesh extends TriMesh
configure(_solid, _textureKey, _transparent, props);
setRenderStates();
}
/**
* Configures this mesh based on the given parameters and (sub-)properties.
*
@@ -139,7 +140,7 @@ public class ModelMesh extends TriMesh
_translucent = _transparent &&
Boolean.parseBoolean(tprops.getProperty("translucent"));
}
/**
* Adjusts the vertices and the transform of the mesh so that the mesh's
* position lies at the center of its bounding volume.
@@ -154,7 +155,7 @@ public class ModelMesh extends TriMesh
}
storeOriginalBuffers();
}
/**
* Adds an overlay layer to this mesh. After the mesh is rendered with
* its configured states, these states will be applied and the mesh will
@@ -167,7 +168,7 @@ public class ModelMesh extends TriMesh
}
_overlays.add(overlay);
}
/**
* Removes a layer from this mesh.
*/
@@ -180,7 +181,7 @@ public class ModelMesh extends TriMesh
}
}
}
@Override // documentation inherited
public void reconstruct (
FloatBuffer vertices, FloatBuffer normals, FloatBuffer colors,
@@ -190,14 +191,14 @@ public class ModelMesh extends TriMesh
for (int ii = 1, nn = getTextureCount(); ii < nn; ii++) {
setTextureBuffer(0, getTextureBuffer(0, 0), ii);
}
// store any buffers that will be manipulated on a per-instance basis
storeOriginalBuffers();
// initialize the model if we're displaying
setRenderStates();
}
// documentation inherited from interface ModelSpatial
public Spatial putClone (Spatial store, Model.CloneCreator properties)
{
@@ -290,7 +291,7 @@ public class ModelMesh extends TriMesh
mstore._vbuf = _vbuf;
return mstore;
}
@Override // documentation inherited
public void updateWorldVectors ()
{
@@ -298,7 +299,7 @@ public class ModelMesh extends TriMesh
super.updateWorldVectors();
}
}
@Override // documentation inherited
public void read (JMEImporter im)
throws IOException
@@ -327,13 +328,13 @@ public class ModelMesh extends TriMesh
_alphaThreshold = capsule.readFloat("alphaThreshold",
DEFAULT_ALPHA_THRESHOLD);
_translucent = capsule.readBoolean("translucent", false);
reconstruct(capsule.readFloatBuffer("vertexBuffer", null),
capsule.readFloatBuffer("normalBuffer", null), null,
capsule.readFloatBuffer("textureBuffer", null),
capsule.readIntBuffer("indexBuffer", null));
}
@Override // documentation inherited
public void write (JMEExporter ex)
throws IOException
@@ -360,21 +361,21 @@ public class ModelMesh extends TriMesh
capsule.write(_transparent, "transparent", false);
capsule.write(_alphaThreshold, "alphaThreshold",
DEFAULT_ALPHA_THRESHOLD);
capsule.write(_translucent, "translucent", false);
capsule.write(_translucent, "translucent", false);
}
// documentation inherited from interface ModelSpatial
public void expandModelBounds ()
{
// no-op
}
// documentation inherited from interface ModelSpatial
public void setReferenceTransforms ()
{
// no-op
}
// documentation inherited from interface ModelSpatial
public void lockStaticMeshes (
Renderer renderer, boolean useVBOs, boolean useDisplayLists)
@@ -383,12 +384,12 @@ public class ModelMesh extends TriMesh
VBOInfo vboinfo = new VBOInfo(true);
vboinfo.setVBOIndexEnabled(!_translucent);
setVBOInfo(vboinfo);
} else if (useDisplayLists && !_translucent) {
lockMeshes(renderer);
}
}
// documentation inherited from interface ModelSpatial
public void resolveTextures (TextureProvider tprov)
{
@@ -424,25 +425,25 @@ public class ModelMesh extends TriMesh
clearRenderState(RenderState.RS_TEXTURE);
}
}
// documentation inherited from interface ModelSpatial
public void storeMeshFrame (int frameId, boolean blend)
{
// no-op
}
// documentation inherited from interface ModelSpatial
public void setMeshFrame (int frameId)
{
// no-op
}
// documentation inherited from interface ModelSpatial
public void blendMeshFrames (int frameId1, int frameId2, float alpha)
{
// no-op
}
@Override // documentation inherited
protected void setupBatchList ()
{
@@ -451,7 +452,7 @@ public class ModelMesh extends TriMesh
batch.setParentGeom(this);
batchList.add(batch);
}
/**
* Returns the number of textures this mesh uses (they must all share the
* same texture coordinates).
@@ -460,7 +461,7 @@ public class ModelMesh extends TriMesh
{
return (_emissiveMap == null || TextureState.getNumberOfFixedUnits() < 2) ? 1 : 2;
}
/**
* For buffers that must be manipulated in some fashion, this method stores
* the originals.
@@ -473,12 +474,12 @@ public class ModelMesh extends TriMesh
IntBuffer ibuf = getIndexBuffer(0);
ibuf.rewind();
IntBuffer.wrap(_oibuf = new int[ibuf.capacity()]).put(ibuf);
FloatBuffer vbuf = getVertexBuffer(0);
vbuf.rewind();
FloatBuffer.wrap(_vbuf = new float[vbuf.capacity()]).put(vbuf);
}
/**
* Sets the model's render states (excluding the texture state, which is
* set by {@link #resolveTextures}) according to its configuration.
@@ -501,6 +502,7 @@ public class ModelMesh extends TriMesh
setRenderQueueMode(Renderer.QUEUE_TRANSPARENT);
setRenderState(_addAlpha);
setRenderState(_overlayZBuffer);
setRenderState(_noFog);
} else if (_transparent) {
setRenderQueueMode(Renderer.QUEUE_TRANSPARENT);
if (_translucent) {
@@ -513,7 +515,7 @@ public class ModelMesh extends TriMesh
}
}
}
/**
* Locks the transform and bounds of this mesh on the assumption that its
* position will not change.
@@ -523,7 +525,7 @@ public class ModelMesh extends TriMesh
lockBounds();
_transformLocked = true;
}
/**
* Returns the mip-map mode corresponding to the given string
* (defaulting to {@link Texture#MM_LINEAR_LINEAR}).
@@ -546,7 +548,7 @@ public class ModelMesh extends TriMesh
return Texture.MM_LINEAR_LINEAR;
}
}
/**
* Initializes the states shared between all models. Requires an active
* display.
@@ -567,8 +569,10 @@ public class ModelMesh extends TriMesh
_overlayZBuffer.setWritable(false);
_emissiveLight = renderer.createLightState();
_emissiveLight.setGlobalAmbient(ColorRGBA.white);
_noFog = renderer.createFogState();
_noFog.setEnabled(false);
}
/**
* Creates an alpha state what will throw away fragments with alpha
* values less than or equal to the given threshold.
@@ -583,7 +587,7 @@ public class ModelMesh extends TriMesh
astate.setReference(threshold);
return astate;
}
/**
* Sorts the encoded triangle index/distance pairs in {@link #_tcodes}
* using a two-pass (16 bit) radix sort (as described by
@@ -596,7 +600,7 @@ public class ModelMesh extends TriMesh
// initialize the offsets for the first radix (LSB) and clear
// the counts
initByteOffsets();
// sort by the first radix and get the counts for the second
// (swapping directions in the hope of using the cache more
// effectively)
@@ -609,7 +613,7 @@ public class ModelMesh extends TriMesh
_stcodes[_boffsets[tcode & 0xFF]++] = tcode;
_bcounts[(tcode >> 8) & 0xFF]++;
}
// initialize offsets for the second radix, clear counts, and
// sort by the second radix
initByteOffsets();
@@ -618,7 +622,7 @@ public class ModelMesh extends TriMesh
_tcodes[_boffsets[(tcode >> 8) & 0xFF]++] = tcode;
}
}
/**
* Sets the initial byte offsets used to place bytes within the sorted
* array using the byte counts, clearing the counts in the process.
@@ -632,7 +636,7 @@ public class ModelMesh extends TriMesh
}
_bcounts[255] = 0;
}
/** Sorts triangles for transparent meshes and renders overlays as well as
* the base layer. */
protected class ModelBatch extends TriangleBatch
@@ -659,7 +663,7 @@ public class ModelMesh extends TriMesh
}
}
}
/**
* Sorts the batch's triangles by their distance to the camera.
*/
@@ -686,13 +690,13 @@ public class ModelMesh extends TriMesh
float a = _cdir.x, b = _cdir.y, c = _cdir.z,
d = radius - a*mc.x - b*mc.y - c*mc.z,
dscale = 65535f / (radius * 2);
// premultiply the scale and averaging factor
a *= dscale / 3f;
b *= dscale / 3f;
c *= dscale / 3f;
d *= dscale;
// encode the model's triangles into integers such that the
// high 16 bits represent the original triangle index and the
// low 16 bits represent the distance to the plane. also
@@ -713,10 +717,10 @@ public class ModelMesh extends TriMesh
_tcodes[ii] = (ii << 16) | idist;
_bcounts[idist & 0xFF]++;
}
// sort the encoded triangles by increasing distance
sortTriangleCodes(tcount);
// reorder the triangles as dictated by the sorted codes, furthest
// triangles first
int icount = tcount * 3, idx;
@@ -729,108 +733,111 @@ public class ModelMesh extends TriMesh
_sibuf[sidx++] = _oibuf[idx++];
_sibuf[sidx++] = _oibuf[idx];
}
// copy the indices to the buffer
IntBuffer ibuf = getIndexBuffer();
ibuf.rewind();
ibuf.put(_sibuf, 0, icount);
}
/** Temporarily stores the original states. */
protected RenderState[] _ostates =
new RenderState[RenderState.RS_MAX_STATE];
}
/** The type of bounding volume that this mesh should use. */
protected int _boundingType;
/** The name of the texture specified in the model file, which acts as a
* property key and a default value. */
* property key and a default value. */
protected String _textureKey;
/** The name of this model's textures, or <code>null</code> for none. */
protected String[] _textures;
/** Whether or not to use sphere mapping on this model's textures. */
protected boolean _sphereMapped;
/** The filter mode to use on magnification. */
protected int _filterMode;
/** The mipmap mode to use on minification. */
protected int _mipMapMode;
/** The emissive map, if specified. */
protected String _emissiveMap;
/** Whether or not this mesh is completely emissive. */
protected boolean _emissive;
/** Whether or not this mesh should be rendered with additive blending. */
protected boolean _additive;
/** Whether or not this mesh can enable back-face culling. */
protected boolean _solid;
/** Whether or not this mesh must be rendered as transparent. */
protected boolean _transparent;
/** The alpha threshold below which fragments are discarded. */
protected float _alphaThreshold;
/** Whether or not the triangles of this mesh should be depth-sorted before
* rendering. */
protected boolean _translucent;
/** If non-null, additional layers to render over the base layer. */
protected ArrayList<RenderState[]> _overlays;
/** For prototype meshes, the resolved texture states. */
protected TextureState[] _tstates;
/** Whether or not the transform has been locked. This operates in a
* slightly different way than JME's locking, in that it allows applying
* transformations to display lists. */
protected boolean _transformLocked;
/** For depth-sorted and skinned meshes, the array of vertices. */
protected float[] _vbuf;
/** For depth-sorted meshes, the original array of indices. */
protected int[] _oibuf;
/** The shared state for back face culling. */
protected static CullState _backCull;
/** The shared state for alpha blending. */
protected static AlphaState _blendAlpha;
/** The shared state for additive blending. */
protected static AlphaState _addAlpha;
/** The shared state for alpha testing with the default threshold. */
protected static AlphaState _defaultTestAlpha;
/** The shared state for checking, but not writing to, the z buffer. */
protected static ZBufferState _overlayZBuffer;
/** A light state that simulates emissivity. */
protected static LightState _emissiveLight;
/** A fog state that disables fog. */
protected static FogState _noFog;
/** Work vector to store the camera direction. */
protected static Vector3f _cdir = new Vector3f();
/** Work arrays used to sort triangles. */
protected static int[] _tcodes, _stcodes;
/** Holds counts of each byte and array offsets for radix sorting. */
protected static int[] _bcounts = new int[256], _boffsets = new int[256];
/** Work array used to hold indices of sorted triangles. */
protected static int[] _sibuf;
/** The default alpha threshold. */
protected static final float DEFAULT_ALPHA_THRESHOLD = 0.5f;
private static final long serialVersionUID = 1;
}