/**
* Convert a <texture> element to an Ardor3D representation and store in the given state.
*
* @param mesh the Ardor3D Mesh to add the Texture to.
* @param daeTexture our <texture> element
* @param effect our <instance_effect> element
* @return the created Texture.
*/
private Texture populateTextureState(
final Mesh mesh,
final Element daeTexture,
final Element effect,
final HashMap<String, Texture> loadedTextures,
final MaterialInfo info,
String textureSlot) {
// TODO: Use vert data to determine which texcoords and set to use.
// final String uvName = daeTexture.getAttributeValue("texcoord");
TextureState tState = (TextureState) mesh.getLocalRenderState(RenderState.StateType.Texture);
if (tState == null) {
tState = new TextureState();
mesh.setRenderState(tState);
}
// Use texture attrib to find correct sampler
final String textureReference = daeTexture.getAttributeValue("texture");
if (textureSlot == null) {
// if we have no texture slot defined (like in the case of an "extra" texture), we'll use the
// textureReference.
textureSlot = textureReference;
}
/* only add the texture to the state once */
if (loadedTextures.containsKey(textureReference)) {
final Texture tex = loadedTextures.get(textureReference);
if (info != null) {
info.setTextureSlot(textureSlot, textureReference, tex, null);
}
return tex;
}
Element node = _colladaDOMUtil.findTargetWithSid(textureReference);
if (node == null) {
// Not sure if this is quite right, but spec seems to indicate looking for global id
node = _colladaDOMUtil.findTargetWithId("#" + textureReference);
}
if ("newparam".equals(node.getName())) {
node = (Element) node.getChildren().get(0);
}
Element sampler = null;
Element surface = null;
Element image = null;
Texture.MinificationFilter min = Texture.MinificationFilter.BilinearNoMipMaps;
if ("sampler2D".equals(node.getName())) {
sampler = node;
if (sampler.getChild("minfilter") != null) {
final String minfilter = sampler.getChild("minfilter").getText();
min = Enum.valueOf(SamplerTypes.MinFilterType.class, minfilter).getArdor3dFilter();
}
// Use sampler to get correct surface
node = _colladaDOMUtil.findTargetWithSid(sampler.getChild("source").getText());
// node = resolveSid(effect, sampler.getSource());
}
if ("newparam".equals(node.getName())) {
node = (Element) node.getChildren().get(0);
}
if ("surface".equals(node.getName())) {
surface = node;
// image(s) will come from surface.
} else if ("image".equals(node.getName())) {
image = node;
}
// Ok, a few possibilities here...
Texture texture = null;
String fileName = null;
if (surface == null && image != null) {
// Only an image found (no sampler). Assume 2d texture. Load.
fileName = image.getChild("init_from").getText();
texture = loadTexture2D(fileName, min);
} else if (surface != null) {
// We have a surface, pull images from that.
if ("2D".equals(surface.getAttributeValue("type"))) {
// look for an init_from with lowest mip and use that. (usually 0)
// TODO: mip?
final Element lowest = (Element) surface.getChildren("init_from").get(0);
// Element lowest = null;
// for (final Element i : (List<Element>) surface.getChildren("init_from")) {
// if (lowest == null || lowest.getMip() > i.getMip()) {
// lowest = i;
// }
// }
if (lowest == null) {
logger.warning("surface given with no usable init_from: " + surface);
return null;
}
image = _colladaDOMUtil.findTargetWithId("#" + lowest.getText());
// image = (DaeImage) root.resolveUrl("#" + lowest.getValue());
if (image != null) {
fileName = image.getChild("init_from").getText();
texture = loadTexture2D(fileName, min);
}
// TODO: add support for mip map levels other than 0.
}
// TODO: add support for the other texture types.
} else {
// No surface OR image... warn.
logger.warning("texture given with no matching <sampler*> or <image> found.");
if (info != null) {
info.setTextureSlot(textureSlot, textureReference, null, null);
}
return null;
}
if (texture != null) {
if (sampler != null) {
// Apply params from our sampler.
applySampler(sampler, texture);
}
// Add to texture state.
tState.setTexture(texture, tState.getNumberOfSetTextures());
loadedTextures.put(textureReference, texture);
if (info != null) {
info.setTextureSlot(textureSlot, textureReference, texture, fileName);
}
} else {
logger.warning("unable to load texture: " + daeTexture);
if (info != null) {
info.setTextureSlot(textureSlot, textureReference, null, fileName);
}
}
return texture;
}
