public Rhino.Render.RenderMaterial Convert()
{
RenderMaterial pbr = RenderContentType.NewContentFromTypeId(ContentUuids.PhysicallyBasedMaterialType, doc) as RenderMaterial;
pbr.BeginChange(RenderContent.ChangeContexts.Program);
pbr.Name = converter.GetUniqueName(material.Name);
if (material.PbrMetallicRoughness != null)
{
Rhino.Display.Color4f baseColor = material.PbrMetallicRoughness.BaseColorFactor.ToColor4f();
if (material.PbrMetallicRoughness.BaseColorTexture != null)
{
int index = material.PbrMetallicRoughness.BaseColorTexture.Index;
RenderTexture texture = converter.GetRenderTexture(index, baseColor);
pbr.SetChild(texture, Rhino.Render.ParameterNames.PhysicallyBased.BaseColor);
pbr.SetChildSlotOn(Rhino.Render.ParameterNames.PhysicallyBased.BaseColor, true, RenderContent.ChangeContexts.Program);
}
baseColor = GltfUtils.UnapplyGamma(baseColor);
pbr.SetParameter(PhysicallyBased.BaseColor, baseColor);
double roughness = material.PbrMetallicRoughness.RoughnessFactor;
double metalness = material.PbrMetallicRoughness.MetallicFactor;
if (material.PbrMetallicRoughness.MetallicRoughnessTexture != null)
{
int index = material.PbrMetallicRoughness.MetallicRoughnessTexture.Index;
RhinoGltfMetallicRoughnessConverter metallicRoughness = converter.GetMetallicRoughnessTexture(index);
pbr.SetChild(metallicRoughness.MetallicTexture, PhysicallyBased.Metallic);
pbr.SetChildSlotOn(PhysicallyBased.Metallic, true, RenderContent.ChangeContexts.Program);
pbr.SetChildSlotAmount(PhysicallyBased.Metallic, metalness * 100.0, RenderContent.ChangeContexts.Program);
pbr.SetChild(metallicRoughness.RoughnessTexture, PhysicallyBased.Roughness);
pbr.SetChildSlotOn(PhysicallyBased.Roughness, true, RenderContent.ChangeContexts.Program);
pbr.SetChildSlotAmount(PhysicallyBased.Roughness, roughness * 100.0, RenderContent.ChangeContexts.Program);
}
else
{
pbr.SetParameter(PhysicallyBased.Roughness, roughness);
pbr.SetParameter(PhysicallyBased.Metallic, metalness);
}
}
Rhino.Display.Color4f emissionColor = material.EmissiveFactor.ToColor4f();
emissionColor = GltfUtils.UnapplyGamma(emissionColor);
pbr.SetParameter(PhysicallyBased.Emission, emissionColor);
if (material.EmissiveTexture != null)
{
RenderTexture emissiveTexture = converter.GetRenderTexture(material.EmissiveTexture.Index);
pbr.SetChild(emissiveTexture, PhysicallyBased.Emission);
pbr.SetChildSlotOn(PhysicallyBased.Emission, true, RenderContent.ChangeContexts.Program);
}
if (material.OcclusionTexture != null)
{
RenderTexture occlusionTexture = converter.GetRenderTexture(material.OcclusionTexture.Index);
pbr.SetChild(occlusionTexture, PhysicallyBased.AmbientOcclusion);
pbr.SetChildSlotOn(PhysicallyBased.AmbientOcclusion, true, RenderContent.ChangeContexts.Program);
pbr.SetChildSlotAmount(PhysicallyBased.AmbientOcclusion, material.OcclusionTexture.Strength * 100.0, RenderContent.ChangeContexts.Program);
}
if (material.NormalTexture != null)
{
RenderTexture normalTexture = converter.GetRenderTexture(material.NormalTexture.Index);
pbr.SetChild(normalTexture, PhysicallyBased.Bump);
pbr.SetChildSlotOn(PhysicallyBased.Bump, true, RenderContent.ChangeContexts.Program);
}
string clearcoatText = "";
string transmissionText = "";
string iorText = "";
string specularText = "";
if (material.Extensions != null)
{
if (material.Extensions.TryGetValue(glTFExtensions.KHR_materials_clearcoat.Tag, out object clearcoatValue))
{
clearcoatText = clearcoatValue.ToString();
}
if (material.Extensions.TryGetValue(glTFExtensions.KHR_materials_transmission.Tag, out object transmissionValue))
{
transmissionText = transmissionValue.ToString();
}
if (material.Extensions.TryGetValue(glTFExtensions.KHR_materials_ior.Tag, out object iorValue))
{
iorText = iorValue.ToString();
}
if (material.Extensions.TryGetValue(glTFExtensions.KHR_materials_specular.Tag, out object specularValue))
{
specularText = specularValue.ToString();
}
}
HandleClearcoat(clearcoatText, pbr);
HandleTransmission(transmissionText, pbr);
HandleIor(iorText, pbr);
HandleSpecular(specularText, pbr);
pbr.EndChange();
doc.RenderMaterials.BeginChange(RenderContent.ChangeContexts.Program);
doc.RenderMaterials.Add(pbr);
doc.RenderMaterials.EndChange();
return(pbr);
}
private bool CreateShaderPart(ShaderBody shb, RenderMaterial rm, float gamma)
{
var crm = rm as ICyclesMaterial;
ShaderBody.CyclesMaterial mattype = ShaderBody.CyclesMaterial.No;
if (crm == null)
{
// always simulate material, need to know now myself
// what to read out from the simulated material to
// populate my own material descriptions.
var m = rm.SimulateMaterial(true);
// figure out what type of material we are.
//var probemat = GuessMaterialFromSmell(rm);
var probemat = WhatMaterial(rm, m);
rm.BeginChange(RenderContent.ChangeContexts.Ignore);
var dcl = m.DiffuseColor;
var scl = m.SpecularColor;
var rcl = m.ReflectionColor;
var rfcl = m.TransparentColor;
var emcl = m.EmissionColor;
var polish = (float)m.ReflectionGlossiness;
var reflectivity = (float)m.Reflectivity;
var metalic = 0f;
var shine = (float)(m.Shine / Material.MaxShine);
switch (probemat)
{
case ProbableMaterial.Plaster:
mattype = ShaderBody.CyclesMaterial.Diffuse;
break;
case ProbableMaterial.Glass:
case ProbableMaterial.Gem:
metalic = 0f;
mattype = ShaderBody.CyclesMaterial.Glass;
break;
case ProbableMaterial.Metal:
metalic = 1.0f;
mattype = ShaderBody.CyclesMaterial.SimpleMetal;
break;
case ProbableMaterial.Plastic:
//polish = reflectivity;
//shine = polish;
//reflectivity = 0f;
metalic = 0f;
mattype = ShaderBody.CyclesMaterial.SimplePlastic;
break;
case ProbableMaterial.Paint:
mattype = ShaderBody.CyclesMaterial.Paint;
break;
case ProbableMaterial.Custom:
mattype = ShaderBody.CyclesMaterial.No;
break;
}
var difftexAlpha = m.AlphaTransparency;
var col = RenderEngine.CreateFloat4(dcl.R, dcl.G, dcl.B, 255);
var spec = RenderEngine.CreateFloat4(scl.R, scl.G, scl.B, 255);
var refl = RenderEngine.CreateFloat4(rcl.R, rcl.G, rcl.B, 255);
var transp = RenderEngine.CreateFloat4(rfcl.R, rfcl.G, rfcl.B, 255);
var refr = RenderEngine.CreateFloat4(rfcl.R, rfcl.G, rfcl.B, 255);
var emis = RenderEngine.CreateFloat4(emcl.R, emcl.G, emcl.B, 255);
//shb.Type = CyclesShader.Shader.Diffuse,
shb.CyclesMaterialType = mattype;
shb.Shadeless = m.DisableLighting;
shb.DiffuseColor = col;
shb.SpecularColor = spec;
shb.ReflectionColor = refl;
shb.ReflectionRoughness = (float)m.ReflectionGlossiness; // polish;
shb.RefractionColor = refr;
shb.RefractionRoughness = (float)m.RefractionGlossiness;
shb.TransparencyColor = transp;
shb.EmissionColor = emis;
shb.FresnelIOR = (float)m.FresnelIndexOfRefraction;
shb.IOR = (float)m.IndexOfRefraction;
shb.Roughness = (float)m.ReflectionGlossiness;
shb.Reflectivity = reflectivity;
shb.Metalic = metalic;
shb.Transparency = (float)m.Transparency;
shb.Shine = shine;
shb.Gloss = (float)m.ReflectionGlossiness;
shb.FresnelReflections = m.FresnelReflections;
shb.Gamma = gamma;
shb.Name = m.Name ?? "";
shb.DiffuseTexture.Amount = 0.0f;
shb.BumpTexture.Amount = 0.0f;
shb.TransparencyTexture.Amount = 0.0f;
shb.EnvironmentTexture.Amount = 0.0f;
if (rm.GetTextureOnFromUsage(RenderMaterial.StandardChildSlots.Diffuse))
{
var difftex = rm.GetTextureFromUsage(RenderMaterial.StandardChildSlots.Diffuse);
BitmapConverter.MaterialBitmapFromEvaluator(ref shb, rm, difftex, RenderMaterial.StandardChildSlots.Diffuse);
if (shb.HasDiffuseTexture)
{
shb.DiffuseTexture.UseAlpha = difftexAlpha;
shb.DiffuseTexture.Amount = (float)Math.Min(rm.GetTextureAmountFromUsage(RenderMaterial.StandardChildSlots.Diffuse) / 100.0f, 1.0f);
}
}
if (rm.GetTextureOnFromUsage(RenderMaterial.StandardChildSlots.Bump))
{
var bumptex = rm.GetTextureFromUsage(RenderMaterial.StandardChildSlots.Bump);
BitmapConverter.MaterialBitmapFromEvaluator(ref shb, rm, bumptex, RenderMaterial.StandardChildSlots.Bump);
if (shb.HasBumpTexture)
{
shb.BumpTexture.Amount = (float)Math.Min(rm.GetTextureAmountFromUsage(RenderMaterial.StandardChildSlots.Bump) / 100.0f, 1.0f);
}
}
if (rm.GetTextureOnFromUsage(RenderMaterial.StandardChildSlots.Transparency))
{
var transtex = rm.GetTextureFromUsage(RenderMaterial.StandardChildSlots.Transparency);
BitmapConverter.MaterialBitmapFromEvaluator(ref shb, rm, transtex,
RenderMaterial.StandardChildSlots.Transparency);
if (shb.HasTransparencyTexture)
{
shb.TransparencyTexture.Amount = (float)Math.Min(rm.GetTextureAmountFromUsage(RenderMaterial.StandardChildSlots.Transparency) / 100.0f, 1.0f);
}
}
if (rm.GetTextureOnFromUsage(RenderMaterial.StandardChildSlots.Environment))
{
var envtex = rm.GetTextureFromUsage(RenderMaterial.StandardChildSlots.Environment);
BitmapConverter.MaterialBitmapFromEvaluator(ref shb, rm, envtex,
RenderMaterial.StandardChildSlots.Environment);
if (shb.HasEnvironmentTexture)
{
shb.EnvironmentTexture.Amount = (float)Math.Min(rm.GetTextureAmountFromUsage(RenderMaterial.StandardChildSlots.Environment) / 100.0f, 1.0f);
}
}
rm.EndChange();
}
else
{
crm.BakeParameters();
shb.Crm = crm;
shb.CyclesMaterialType = ShaderBody.CyclesMaterial.Xml;
shb.Gamma = gamma;
shb.Name = rm.Name ?? "some cycles material";
}
return(true);
}