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Added options for alpha testing.

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git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@33 ed5b42cb-e716-0410-a449-f6a68f950b19
This commit is contained in:
Andrzej Kapolka
2006-08-25 00:39:45 +00:00
parent 9ed3f62af7
commit 1eff736540
2 changed files with 68 additions and 20 deletions
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src/java/com/threerings/jme/model/ModelMesh.java
+65 -17
View File
@@ -100,16 +100,20 @@ public class ModelMesh extends TriMesh
_textures = (texture == null) ? null : StringUtil.parseStringArray(
props.getProperty(texture, texture));
_sphereMapped = Boolean.parseBoolean(
props.getProperty(texture + ".sphere_map"));
getSubProperty(props, texture, "sphere_map"));
_filterMode = "nearest".equals(
props.getProperty(texture + ".filter")) ?
getSubProperty(props, texture, "filter")) ?
Texture.FM_NEAREST : Texture.FM_LINEAR;
_mipMapMode = getMipMapMode(props.getProperty(texture + ".mipmap"));
_emissiveMap = props.getProperty(texture + ".emissive");
_mipMapMode = getMipMapMode(
getSubProperty(props, texture, "mipmap"));
_emissiveMap = getSubProperty(props, texture, "emissive");
_solid = solid;
_transparent = transparent;
_depthSorted = _transparent && Boolean.parseBoolean(
props.getProperty("depth_sort"));
String threshold = getSubProperty(props, texture, "alpha_threshold");
_alphaThreshold = (threshold == null) ?
DEFAULT_ALPHA_THRESHOLD : Float.parseFloat(threshold);
_translucent = _transparent && Boolean.parseBoolean(
getSubProperty(props, texture, "translucent"));
}
/**
@@ -151,8 +155,14 @@ public class ModelMesh extends TriMesh
}
if (_transparent) {
setRenderQueueMode(Renderer.QUEUE_TRANSPARENT);
setRenderState(_blendAlpha);
setRenderState(_overlayZBuffer);
if (_translucent) {
setRenderState(_blendAlpha);
setRenderState(_overlayZBuffer);
} else if (_alphaThreshold == DEFAULT_ALPHA_THRESHOLD) {
setRenderState(_defaultTestAlpha);
} else {
setRenderState(createTestAlpha(_alphaThreshold));
}
}
}
@@ -280,7 +290,7 @@ public class ModelMesh extends TriMesh
mbatch.setTextureBuffer(properties.isSet("texcoords") ?
texcoords : BufferUtils.clone(texcoords), ii);
}
mbatch.setIndexBuffer((properties.isSet("indices") && !_depthSorted) ?
mbatch.setIndexBuffer((properties.isSet("indices") && !_translucent) ?
batch.getIndexBuffer() :
BufferUtils.clone(batch.getIndexBuffer()));
if (properties.isSet("vboinfo")) {
@@ -311,7 +321,7 @@ public class ModelMesh extends TriMesh
mstore._emissiveMap = _emissiveMap;
mstore._solid = _solid;
mstore._transparent = _transparent;
mstore._depthSorted = _depthSorted;
mstore._translucent = _translucent;
mstore._oibuf = _oibuf;
mstore._vbuf = _vbuf;
return mstore;
@@ -346,7 +356,8 @@ public class ModelMesh extends TriMesh
out.writeObject(_emissiveMap);
out.writeBoolean(_solid);
out.writeBoolean(_transparent);
out.writeBoolean(_depthSorted);
out.writeFloat(_alphaThreshold);
out.writeBoolean(_translucent);
}
// documentation inherited from interface Externalizable
@@ -370,7 +381,8 @@ public class ModelMesh extends TriMesh
_emissiveMap = (String)in.readObject();
_solid = in.readBoolean();
_transparent = in.readBoolean();
_depthSorted = in.readBoolean();
_alphaThreshold = in.readFloat();
_translucent = in.readBoolean();
}
// documentation inherited from interface ModelSpatial
@@ -391,10 +403,10 @@ public class ModelMesh extends TriMesh
{
if (useVBOs && renderer.supportsVBO()) {
VBOInfo vboinfo = new VBOInfo(true);
vboinfo.setVBOIndexEnabled(!_depthSorted);
vboinfo.setVBOIndexEnabled(!_translucent);
setVBOInfo(vboinfo);
} else if (useDisplayLists && !_depthSorted) {
} else if (useDisplayLists && !_translucent) {
lockMeshes(renderer);
}
}
@@ -590,7 +602,7 @@ public class ModelMesh extends TriMesh
*/
protected void storeOriginalBuffers ()
{
if (!_depthSorted) {
if (!_translucent) {
return;
}
IntBuffer ibuf = getIndexBuffer(0);
@@ -612,6 +624,17 @@ public class ModelMesh extends TriMesh
_transformLocked = true;
}
/**
* Gets a sub-property from the given set, falling back on the main
* property if the sub-property is not specified.
*/
protected static String getSubProperty (
Properties props, String prefix, String property)
{
return props.getProperty(prefix + "." + property,
props.getProperty(property));
}
/**
* Returns the mip-map mode corresponding to the given string
* (defaulting to {@link Texture#MM_LINEAR_LINEAR}).
@@ -661,11 +684,27 @@ public class ModelMesh extends TriMesh
_backCull.setCullMode(CullState.CS_BACK);
_blendAlpha = renderer.createAlphaState();
_blendAlpha.setBlendEnabled(true);
_defaultTestAlpha = createTestAlpha(DEFAULT_ALPHA_THRESHOLD);
_overlayZBuffer = renderer.createZBufferState();
_overlayZBuffer.setFunction(ZBufferState.CF_LEQUAL);
_overlayZBuffer.setWritable(false);
}
/**
* Creates an alpha state what will throw away fragments with alpha
* values less than or equal to the given threshold.
*/
protected static AlphaState createTestAlpha (float threshold)
{
AlphaState astate = DisplaySystem.getDisplaySystem().
getRenderer().createAlphaState();
astate.setBlendEnabled(true);
astate.setTestEnabled(true);
astate.setTestFunction(AlphaState.TF_GREATER);
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
@@ -722,7 +761,7 @@ public class ModelMesh extends TriMesh
@Override // documentation inherited
public void draw (Renderer r)
{
if (_depthSorted && isEnabled() && r.isProcessingQueue()) {
if (_translucent && isEnabled() && r.isProcessingQueue()) {
sortTriangles(r);
}
super.draw(r);
@@ -855,9 +894,12 @@ public class ModelMesh extends TriMesh
/** 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 _depthSorted;
protected boolean _translucent;
/** If non-null, additional layers to render over the base layer. */
protected ArrayList<RenderState[]> _overlays;
@@ -882,6 +924,9 @@ public class ModelMesh extends TriMesh
/** The shared state for alpha blending. */
protected static AlphaState _blendAlpha;
/** 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;
@@ -897,5 +942,8 @@ public class ModelMesh extends TriMesh
/** 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;
}
src/java/com/threerings/jme/model/SkinMesh.java
+3 -3
View File
@@ -269,10 +269,10 @@ public class SkinMesh extends ModelMesh
VBOInfo vboinfo = new VBOInfo(false);
vboinfo.setVBOColorEnabled(true);
vboinfo.setVBOTextureEnabled(true);
vboinfo.setVBOIndexEnabled(!_depthSorted);
vboinfo.setVBOIndexEnabled(!_translucent);
setVBOInfo(vboinfo);
}
_useDisplayLists = useDisplayLists && !_depthSorted;
_useDisplayLists = useDisplayLists && !_translucent;
}
@Override // documentation inherited
@@ -400,7 +400,7 @@ public class SkinMesh extends ModelMesh
VBOInfo ovboinfo = batch.getVBOInfo();
if (ovboinfo != null) {
VBOInfo vboinfo = new VBOInfo(true);
vboinfo.setVBOIndexEnabled(!_depthSorted);
vboinfo.setVBOIndexEnabled(!_translucent);
vboinfo.setVBOColorID(ovboinfo.getVBOColorID());
for (int ii = 0; ii < nunits; ii++) {
vboinfo.setVBOTextureID(ii, ovboinfo.getVBOTextureID(ii));