/**
* Clear a parameter from this material. The parameter must exist
*
* @param name the name of the parameter to clear
*/
public void clearParam(String name) {
checkSetParam(null, name);
MatParam matParam = getParam(name);
if (matParam == null) {
return;
}
paramValues.remove(name);
if (matParam instanceof MatParamTexture) {
int texUnit = ((MatParamTexture) matParam).getUnit();
nextTexUnit--;
for (MatParam param : paramValues.values()) {
if (param instanceof MatParamTexture) {
MatParamTexture texParam = (MatParamTexture) param;
if (texParam.getUnit() > texUnit) {
texParam.setUnit(texParam.getUnit() - 1);
}
}
}
sortingId = -1;
}
if (technique != null) {
technique.notifyParamChanged(name, null, null);
}
}
/**
* Pass a parameter to the material shader.
*
* @param name the name of the parameter defined in the material definition (j3md)
* @param type the type of the parameter {@link VarType}
* @param value the value of the parameter
*/
public void setParam(String name, VarType type, Object value) {
checkSetParam(type, name);
if (type.isTextureType()) {
setTextureParam(name, type, (Texture) value);
} else {
MatParam val = getParam(name);
if (val == null) {
MatParam paramDef = def.getMaterialParam(name);
paramValues.put(name, new MatParam(type, name, value, paramDef.getFixedFuncBinding()));
} else {
val.setValue(value);
}
if (technique != null) {
technique.notifyParamChanged(name, type, value);
}
}
}
/**
* Set a texture parameter.
*
* @param name The name of the parameter
* @param type The variable type {@link VarType}
* @param value The texture value of the parameter.
* @throws IllegalArgumentException is value is null
*/
public void setTextureParam(String name, VarType type, Texture value) {
if (value == null) {
throw new IllegalArgumentException();
}
checkSetParam(type, name);
MatParamTexture val = getTextureParam(name);
if (val == null) {
paramValues.put(name, new MatParamTexture(type, name, value, nextTexUnit++));
} else {
val.setTextureValue(value);
}
if (technique != null) {
technique.notifyParamChanged(name, type, nextTexUnit - 1);
}
// need to recompute sort ID
sortingId = -1;
}