private void ReadState(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
var shader = node.GetAttribute("shader");
var dicing_rate = node.GetAttribute("dicing_rate");
var interpolation = node.GetAttribute("interpolation");
var displacement_method = node.GetAttribute("displacement_method");
if (!string.IsNullOrEmpty(shader))
{
state.Shader = state.Scene.ShaderWithName(shader);
}
if (!string.IsNullOrEmpty(dicing_rate))
{
state.DicingRate = float.Parse(dicing_rate, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(interpolation))
{
state.Smooth = interpolation.Equals("smooth", StringComparison.OrdinalIgnoreCase);
}
bool boolval = false;
if (Utilities.Instance.get_bool(ref boolval, node.GetAttribute("is_shadow_catcher")))
{
state.IsShadowCatcher = boolval;
}
if (!string.IsNullOrEmpty(displacement_method))
{
/* \todo wrap displacement method stuff */
}
}
private void ReadObject(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
var meshname = node.GetAttribute("mesh");
var me = meshes[meshname];
var ob = new ccl.Object(Client)
{
Transform = state.Transform, IsShadowCatcher = state.IsShadowCatcher
};
ob.Mesh = me;
}
/// <summary>
/// Main access point for the XML reader. Reads
/// the Scene description as given in Path
/// </summary>
public void Parse(bool silent)
{
var state = new XmlReadState
{
BasePath = System.IO.Path.GetDirectoryName(Path),
Scene = Client.Scene,
Shader = Client.Scene.DefaultSurface,
DicingRate = 0.1f,
Smooth = false,
Transform = ccl.Transform.Identity(),
Silent = silent
};
ReadInclude(ref state, System.IO.Path.GetFileName(Path));
}
/// <summary>
/// Read the scene description from the file in src
/// </summary>
/// <param name="state"></param>
/// <param name="src"></param>
public void ReadInclude(ref XmlReadState state, string src)
{
var path = System.IO.Path.Combine(state.BasePath, src);
var settings = new XmlReaderSettings {
ConformanceLevel = ConformanceLevel.Fragment, IgnoreComments = true, IgnoreProcessingInstructions = true, IgnoreWhitespace = true
};
var reader = System.Xml.XmlReader.Create(path, settings);
var substate = new XmlReadState(state)
{
BasePath = System.IO.Path.GetDirectoryName(path)
};
ReadScene(ref substate, reader);
reader.Close();
}
private void ReadBackground(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
if (!state.Silent)
{
Console.WriteLine("Background shader");
}
var shader = new Shader(Client, Shader.ShaderType.World)
{
Name = Guid.NewGuid().ToString()
};
Utilities.Instance.ReadNodeGraph(ref shader, node.ReadSubtree());
state.Scene.AddShader(shader);
state.Scene.Background.Shader = shader;
}
public void ReadShader(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
var name = node.GetAttribute("name");
if (!state.Silent)
{
Console.WriteLine("Shader: {0}", node.GetAttribute("name"));
}
if (string.IsNullOrEmpty(name))
{
return;
}
var shader = new Shader(Client, Shader.ShaderType.Material)
{
Name = name
};
Utilities.Instance.ReadNodeGraph(ref shader, node.ReadSubtree());
state.Scene.AddShader(shader);
}
public XmlReadState(XmlReadState old)
: this(old.Scene, new Transform(old.Transform), old.Smooth, old.Shader, old.BasePath, old.DicingRate, old.Silent, old.IsShadowCatcher)
{
}
private void ReadScene(ref XmlReadState state, System.Xml.XmlReader node)
{
while (node.Read())
{
if (!node.IsStartElement())
{
continue;
}
if (!state.Silent)
{
Console.WriteLine("XML node: {0}", node.Name);
}
switch (node.Name)
{
case "camera":
ReadCamera(ref state, node.ReadSubtree());
break;
case "background":
ReadBackground(ref state, node.ReadSubtree());
break;
case "transform":
var transform_substate = new XmlReadState(state);
var t = transform_substate.Transform;
ReadTransform(node, ref t);
transform_substate.Transform = t;
node.Read(); /* advance forward one, otherwise we'll end up in internal loop */
ReadScene(ref transform_substate, node.ReadSubtree());
break;
case "lookat":
var lookat_substate = new XmlReadState(state);
var lat = lookat_substate.Transform;
ReadLookAt(node, ref lat);
lookat_substate.Transform = lat;
node.Read(); /* advance forward one, otherwise we'll end up in internal loop */
ReadScene(ref lookat_substate, node.ReadSubtree());
break;
case "state":
var state_substate = new XmlReadState(state);
ReadState(ref state_substate, node.ReadSubtree());
node.Read(); /* advance one forward */
ReadScene(ref state_substate, node.ReadSubtree());
break;
case "integrator":
ReadIntegrator(ref state, node.ReadSubtree());
break;
case "shader":
var shader_substate = new XmlReadState(state);
ReadShader(ref shader_substate, node.ReadSubtree());
break;
case "mesh":
ReadMesh(ref state, node.ReadSubtree());
break;
case "object":
ReadObject(ref state, node.ReadSubtree());
break;
case "light":
ReadLight(ref state, node.ReadSubtree());
break;
case "include":
var src = node.GetAttribute("src");
if (!string.IsNullOrEmpty(src))
{
ReadInclude(ref state, src);
}
break;
default:
Console.WriteLine("Uknown node {0}", node.Name);
break;
}
}
}
private void ReadLight(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
Light light = new Light(Client, state.Scene, state.Shader);
int intval = 0;
float floatval = 0.0f;
float4 float4val = new float4(0.0f);
bool boolval = false;
if (Utilities.Instance.get_int(ref intval, node.GetAttribute("type")))
{
light.Type = (LightType)intval;
}
if (Utilities.Instance.get_float(ref floatval, node.GetAttribute("spot_angle")))
{
light.SpotAngle = floatval;
}
if (Utilities.Instance.get_float(ref floatval, node.GetAttribute("spot_smooth")))
{
light.SpotSmooth = floatval;
}
if (Utilities.Instance.get_float(ref floatval, node.GetAttribute("sizeu")))
{
light.SizeU = floatval;
}
if (Utilities.Instance.get_float(ref floatval, node.GetAttribute("sizev")))
{
light.SizeV = floatval;
}
if (Utilities.Instance.get_float4(float4val, node.GetAttribute("axisu")))
{
light.AxisU = float4val;
}
if (Utilities.Instance.get_float4(float4val, node.GetAttribute("axisv")))
{
light.AxisV = float4val;
}
/* @todo
* if(Utilities.Instance.get_bool(ref boolval, node.GetAttribute("is_portal")))
* {
* }
*/
if (Utilities.Instance.get_float(ref floatval, node.GetAttribute("size")))
{
light.Size = floatval;
}
if (Utilities.Instance.get_float4(float4val, node.GetAttribute("dir")))
{
light.Direction = float4val;
}
if (Utilities.Instance.get_float4(float4val, node.GetAttribute("P")))
{
light.Location = state.Transform * float4val;
}
if (Utilities.Instance.get_bool(ref boolval, node.GetAttribute("cast_shadow")))
{
light.CastShadow = boolval;
}
if (Utilities.Instance.get_bool(ref boolval, node.GetAttribute("use_mis")))
{
light.UseMis = boolval;
}
if (Utilities.Instance.get_int(ref intval, node.GetAttribute("samples")))
{
light.Samples = (uint)intval;
}
if (Utilities.Instance.get_int(ref intval, node.GetAttribute("max_bounces")))
{
light.MaxBounces = (uint)intval;
}
/* @todo add ray visibility to light API
* if(Utilities.Instance.get_bool(ref boolval, node.GetAttribute("use_diffuse")))
* {
* light.UseDiffuse = boolval;
* }
* if(Utilities.Instance.get_bool(ref boolval, node.GetAttribute("use_glossy")))
* {
* light.UseGlossy = boolval;
* }
* if(Utilities.Instance.get_bool(ref boolval, node.GetAttribute("use_transmission")))
* {
* light.UseTransmission = boolval;
* }
* if(Utilities.Instance.get_bool(ref boolval, node.GetAttribute("use_scatter")))
* {
* light.UseScatter = boolval;
* }
*/
light.TagUpdate();
}
private void ReadCamera(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
var width = node.GetAttribute("width");
var height = node.GetAttribute("height");
var type = node.GetAttribute("type");
var fov = node.GetAttribute("fov");
var nearclip = node.GetAttribute("nearclip");
var farclip = node.GetAttribute("farclip");
var aperturesize = node.GetAttribute("aperturesize");
var focaldistance = node.GetAttribute("focaldistance");
var shuttertime = node.GetAttribute("shuttertime");
var panorama_type = node.GetAttribute("panorama_type");
var fisheye_fov = node.GetAttribute("fisheye_fov");
var fisheye_lens = node.GetAttribute("fisheye_lens");
var sensorwidth = node.GetAttribute("sensorwidth");
var sensorheight = node.GetAttribute("sensorheight");
if (!string.IsNullOrEmpty(width) && !string.IsNullOrEmpty(height))
{
Client.Scene.Camera.Size = new Size(int.Parse(width), int.Parse(height));
}
if (!string.IsNullOrEmpty(type))
{
CameraType camera_type;
if (Enum.TryParse(type, true, out camera_type))
{
Client.Scene.Camera.Type = camera_type;
}
}
if (!string.IsNullOrEmpty(panorama_type))
{
PanoramaType panoramatype;
if (Enum.TryParse(panorama_type, true, out panoramatype))
{
Client.Scene.Camera.PanoramaType = panoramatype;
}
}
if (!string.IsNullOrEmpty(fov))
{
Client.Scene.Camera.Fov = float.Parse(fov, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(nearclip))
{
Client.Scene.Camera.NearClip = float.Parse(nearclip, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(farclip))
{
Client.Scene.Camera.FarClip = float.Parse(farclip, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(aperturesize))
{
Client.Scene.Camera.ApertureSize = float.Parse(aperturesize, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(focaldistance))
{
Client.Scene.Camera.FocalDistance = float.Parse(focaldistance, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(shuttertime))
{
Client.Scene.Camera.ShutterTime = float.Parse(shuttertime, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(fisheye_fov))
{
Client.Scene.Camera.FishEyeFov = float.Parse(fisheye_fov, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(fisheye_lens))
{
Client.Scene.Camera.FishEyeLens = float.Parse(fisheye_lens, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(sensorwidth))
{
Client.Scene.Camera.SensorWidth = float.Parse(sensorwidth, NumberFormatInfo);
}
if (!string.IsNullOrEmpty(sensorheight))
{
Client.Scene.Camera.SensorHeight = float.Parse(sensorheight, NumberFormatInfo);
}
Client.Scene.Camera.Matrix = state.Transform;
Client.Scene.Camera.ComputeAutoViewPlane();
Client.Scene.Camera.Update();
}
private void ReadMesh(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
var name = node.GetAttribute("name");
if (!state.Silent)
{
Console.WriteLine("Shader: {0}", node.GetAttribute("name"));
}
if (string.IsNullOrEmpty(name))
{
throw new MissingFieldException("<mesh> is missing 'name'");
}
var P = node.GetAttribute("P");
var UV = node.GetAttribute("UV");
var nverts = node.GetAttribute("nverts");
var verts = node.GetAttribute("verts");
if (!state.Silent)
{
Console.WriteLine("{0}", node);
}
var has_uv = !string.IsNullOrEmpty(UV);
float[] uvfloats = null;
if (has_uv)
{
uvfloats = Utilities.Instance.parse_floats(UV);
}
var pfloats = Utilities.Instance.parse_floats(P);
var nvertsints = Utilities.Instance.parse_ints(nverts);
var vertsints = Utilities.Instance.parse_ints(verts);
//var ob = new ccl.Object(Client) { Transform = state.Transform };
var me = new Mesh(Client, state.Shader);
//ob.Mesh = me;
meshes.Add(name, me);
me.SetVerts(ref pfloats);
var index_offset = 0;
/* count triangles */
var fc = nvertsints.Aggregate(0, (total, next) =>
next == 4 ? total + 2 : total + 1);
float[] uvs = null;
if (has_uv)
{
uvs = new float[fc * 3 * 2];
}
var uvoffs = 0;
foreach (var t in nvertsints)
{
for (var j = 0; j < t - 2; j++)
{
var v0 = vertsints[index_offset];
var v1 = vertsints[index_offset + j + 1];
var v2 = vertsints[index_offset + j + 2];
if (has_uv)
{
uvs[uvoffs] = uvfloats[index_offset * 2];
uvs[uvoffs + 1] = uvfloats[index_offset * 2 + 1];
uvs[uvoffs + 2] = uvfloats[(index_offset + j + 1) * 2];
uvs[uvoffs + 3] = uvfloats[(index_offset + j + 1) * 2 + 1];
uvs[uvoffs + 4] = uvfloats[(index_offset + j + 2) * 2];
uvs[uvoffs + 5] = uvfloats[(index_offset + j + 2) * 2 + 1];
uvoffs += 6;
}
me.AddTri((uint)v0, (uint)v1, (uint)v2, state.Shader, state.Smooth);
}
index_offset += t;
}
if (has_uv)
{
me.SetUvs(ref uvs);
}
}
private void ReadIntegrator(ref XmlReadState state, System.Xml.XmlReader node)
{
node.Read();
/* \todo AA sample stuff */
var boolvar = false;
var intvar = 0;
var floatvar = 0.0f;
var stringvar = "";
Utilities.Instance.get_bool(ref boolvar, node.GetAttribute("branched"));
state.Scene.Integrator.IntegratorMethod = boolvar ? IntegratorMethod.BranchedPath : IntegratorMethod.Path;
if (Utilities.Instance.get_bool(ref boolvar, node.GetAttribute("sample_all_lights_direct")))
{
state.Scene.Integrator.SampleAllLightsDirect = boolvar;
}
if (Utilities.Instance.get_bool(ref boolvar, node.GetAttribute("sample_all_lights_indirect")))
{
state.Scene.Integrator.SampleAllLightsIndirect = boolvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("diffuse_samples")))
{
state.Scene.Integrator.DiffuseSamples = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("glossy_samples")))
{
state.Scene.Integrator.GlossySamples = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("transmission_samples")))
{
state.Scene.Integrator.TransmissionSamples = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("ao_samples")))
{
state.Scene.Integrator.AoSamples = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("mesh_light_samples")))
{
state.Scene.Integrator.MeshLightSamples = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("subsurface_samples")))
{
state.Scene.Integrator.SubsurfaceSamples = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("volume_samples")))
{
state.Scene.Integrator.VolumeSamples = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("min_bounce")))
{
state.Scene.Integrator.MinBounce = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("max_bounce")))
{
state.Scene.Integrator.MaxBounce = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("max_diffuse_bounce")))
{
state.Scene.Integrator.MaxDiffuseBounce = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("max_glossy_bounce")))
{
state.Scene.Integrator.MaxGlossyBounce = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("max_transmission_bounce")))
{
state.Scene.Integrator.MaxTransmissionBounce = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("max_volume_bounce")))
{
state.Scene.Integrator.MaxVolumeBounce = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("transparent_min_bounce")))
{
state.Scene.Integrator.TransparentMinBounce = intvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("transparent_max_bounce")))
{
state.Scene.Integrator.TransparentMaxBounce = intvar;
}
if (Utilities.Instance.get_bool(ref boolvar, node.GetAttribute("transparent_shadows")))
{
state.Scene.Integrator.TransparentShadows = boolvar;
}
if (Utilities.Instance.get_float(ref floatvar, node.GetAttribute("volume_step_size")))
{
state.Scene.Integrator.VolumeStepSize = floatvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("volume_max_steps")))
{
state.Scene.Integrator.VolumeMaxSteps = intvar;
}
/* \todo wrap caustics form separation
*
* if (Utilities.Instance.get_bool(ref boolvar, node.GetAttribute("caustics_reflective"))) state.Scene.Integrator.DoCausticsReflective = boolvar;
* if (Utilities.Instance.get_bool(ref boolvar, node.GetAttribute("caustics_refractive"))) state.Scene.Integrator.DoCausticsRefractive = boolvar;
*/
if (Utilities.Instance.get_bool(ref boolvar, node.GetAttribute("no_caustics")))
{
state.Scene.Integrator.NoCaustics = boolvar;
}
if (Utilities.Instance.get_float(ref floatvar, node.GetAttribute("filter_glossy")))
{
state.Scene.Integrator.FilterGlossy = floatvar;
}
if (Utilities.Instance.get_int(ref intvar, node.GetAttribute("seed")))
{
state.Scene.Integrator.Seed = intvar;
}
if (Utilities.Instance.get_float(ref floatvar, node.GetAttribute("sample_clamp_direct")))
{
state.Scene.Integrator.SampleClampDirect = floatvar;
}
if (Utilities.Instance.get_float(ref floatvar, node.GetAttribute("sample_clamp_indirect")))
{
state.Scene.Integrator.SampleClampIndirect = floatvar;
}
if (Utilities.Instance.read_string(ref stringvar, node.GetAttribute("sampling_pattern")))
{
state.Scene.Integrator.SamplingPattern = stringvar.Equals("sobol") ? SamplingPattern.Sobol : SamplingPattern.CMJ;
}
state.Scene.Integrator.TagForUpdate();
}
