// Adds a glTF attribute, as described by name, type, and semantic, to the given technique tech.
private static void AddAttribute(string name, GlTF_Technique.Type type,
GlTF_Technique.Semantic semantic, GlTF_Technique tech)
{
GlTF_Technique.Parameter tParam = new GlTF_Technique.Parameter();
tParam.name = name;
tParam.type = type;
tParam.semantic = semantic;
tech.parameters.Add(tParam);
GlTF_Technique.Attribute tAttr = new GlTF_Technique.Attribute();
tAttr.name = "a_" + name;
tAttr.param = tParam.name;
tech.attributes.Add(tAttr);
}
public AttributeInfo(GlTF_Accessor.Type accessorType,
GlTF_Accessor.ComponentType accessorComponentType)
{
this.accessorType = accessorType;
this.accessorComponentType = accessorComponentType;
switch (accessorType)
{
case GlTF_Accessor.Type.SCALAR: techniqueType = GlTF_Technique.Type.FLOAT; break;
case GlTF_Accessor.Type.VEC2: techniqueType = GlTF_Technique.Type.FLOAT_VEC2; break;
case GlTF_Accessor.Type.VEC3: techniqueType = GlTF_Technique.Type.FLOAT_VEC3; break;
case GlTF_Accessor.Type.VEC4: techniqueType = GlTF_Technique.Type.FLOAT_VEC4; break;
default:
throw new ArgumentException("accessorType");
}
}
// Adds a glTF uniform, as described by name, type, and semantic, to the given technique tech. If
// node is non-null, that is also included (e.g. for lights).
private void AddUniform(
IExportableMaterial exportableMaterial,
string name, GlTF_Technique.Type type,
GlTF_Technique.Semantic semantic, GlTF_Node node = null)
{
//var techName = GlTF_Technique.GetNameFromObject(matObjName);
var tech = GlTF_Writer.GetTechnique(G, exportableMaterial);
GlTF_Technique.Parameter tParam = new GlTF_Technique.Parameter();
tParam.name = name;
tParam.type = type;
tParam.semantic = semantic;
if (node != null)
{
tParam.node = node;
}
tech.parameters.Add(tParam);
GlTF_Technique.Uniform tUniform = new GlTF_Technique.Uniform();
tUniform.name = "u_" + name;
tUniform.param = tParam.name;
tech.uniforms.Add(tUniform);
}
