Smuggler/Effects/PBREffect.cs

280 lines
9.3 KiB
C#

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace Smuggler
{
public struct PBRLight
{
public Vector3 direction;
public Vector3 colour;
public PBRLight(Vector3 direction, Vector3 colour)
{
this.direction = direction;
this.colour = colour;
}
}
public class PBREffect : Effect
{
readonly EffectParameter modelParam;
readonly EffectParameter viewParam;
readonly EffectParameter projectionParam;
readonly EffectParameter lightDirParam;
readonly EffectParameter lightColourParam;
readonly EffectParameter normalScaleParam;
readonly EffectParameter emissiveFactorParam;
readonly EffectParameter occlusionStrengthParam;
readonly EffectParameter metallicRoughnessValuesParam;
readonly EffectParameter baseColorFactorParam;
readonly EffectParameter cameraLookParam;
readonly EffectParameter baseColourTextureParam;
readonly EffectParameter normalTextureParam;
readonly EffectParameter emissionTextureParam;
readonly EffectParameter occlusionTextureParam;
readonly EffectParameter metallicRoughnessTextureParam;
readonly EffectParameter envDiffuseTextureParam;
readonly EffectParameter brdfLutTextureParam;
readonly EffectParameter envSpecularTextureParam;
Matrix world = Matrix.Identity;
Matrix view = Matrix.Identity;
Matrix projection = Matrix.Identity;
PBRLight light = new PBRLight();
float normalScale = 1;
Vector3 emissiveFactor;
float occlusionStrength;
Vector2 metallicRoughnessValue;
Vector4 baseColorFactor;
public Matrix World
{
get { return world; }
set
{
world = value;
modelParam.SetValue(world);
}
}
public Matrix View
{
get { return view; }
set
{
view = value;
viewParam.SetValue(view);
cameraLookParam.SetValue(-new Vector3(
view.M13,
view.M23,
view.M33
));
}
}
public Matrix Projection
{
get { return projection; }
set
{
projection = value;
projectionParam.SetValue(value);
}
}
public PBRLight Light
{
get { return light; }
set
{
light = value;
lightDirParam.SetValue(light.direction);
lightColourParam.SetValue(light.colour);
}
}
public float NormalScale
{
get { return normalScale; }
set
{
normalScale = value;
normalScaleParam.SetValue(normalScale);
}
}
public Vector3 EmissiveFactor
{
get { return emissiveFactor; }
set
{
emissiveFactor = value;
emissiveFactorParam.SetValue(emissiveFactor);
}
}
public float OcclusionStrength
{
get { return occlusionStrength; }
set
{
occlusionStrength = value;
occlusionStrengthParam.SetValue(occlusionStrength);
}
}
public Vector2 MetallicRoughnessValue
{
get { return metallicRoughnessValue; }
set
{
metallicRoughnessValue = value;
metallicRoughnessValuesParam.SetValue(metallicRoughnessValue);
}
}
public Vector4 BaseColorFactor
{
get { return baseColorFactor; }
set
{
baseColorFactor = value;
baseColorFactorParam.SetValue(baseColorFactor);
}
}
public Texture2D BaseColourTexture
{
get { return baseColourTextureParam.GetValueTexture2D(); }
set { baseColourTextureParam.SetValue(value); }
}
public Texture2D NormalTexture
{
get { return normalTextureParam.GetValueTexture2D(); }
set { normalTextureParam.SetValue(value); }
}
public Texture2D EmissionTexture
{
get { return emissionTextureParam.GetValueTexture2D(); }
set { emissionTextureParam.SetValue(value); }
}
public Texture2D OcclusionTexture
{
get { return occlusionTextureParam.GetValueTexture2D(); }
set { occlusionTextureParam.SetValue(value); }
}
public Texture2D MetallicRoughnessTexture
{
get { return metallicRoughnessTextureParam.GetValueTexture2D(); }
set { metallicRoughnessTextureParam.SetValue(value); }
}
public TextureCube EnvDiffuseTexture
{
get { return envDiffuseTextureParam.GetValueTextureCube(); }
set { envDiffuseTextureParam.SetValue(value); }
}
public Texture2D BRDFLutTexture
{
get { return brdfLutTextureParam.GetValueTexture2D(); }
set { brdfLutTextureParam.SetValue(value); }
}
public TextureCube EnvSpecularTexture
{
get { return envSpecularTextureParam.GetValueTextureCube(); }
set { envSpecularTextureParam.SetValue(value); }
}
public PBREffect(GraphicsDevice graphicsDevice) : base(graphicsDevice, Resources.PBREffect)
{
modelParam = Parameters["model"];
viewParam = Parameters["view"];
projectionParam = Parameters["projection"];
lightDirParam = Parameters["lightDir"];
lightColourParam = Parameters["lightColour"];
normalScaleParam = Parameters["normalScale"];
emissiveFactorParam = Parameters["emissiveFactor"];
occlusionStrengthParam = Parameters["occlusionStrength"];
metallicRoughnessValuesParam = Parameters["metallicRoughnessValues"];
baseColorFactorParam = Parameters["baseColorFactor"];
cameraLookParam = Parameters["camera"];
baseColourTextureParam = Parameters["baseColourTexture"];
normalTextureParam = Parameters["normalTexture"];
emissionTextureParam = Parameters["emissionTexture"];
occlusionTextureParam = Parameters["occlusionTexture"];
metallicRoughnessTextureParam = Parameters["metallicRoughnessTexture"];
envDiffuseTextureParam = Parameters["envDiffuseTexture"];
brdfLutTextureParam = Parameters["brdfLutTexture"];
envSpecularTextureParam = Parameters["envSpecularTexture"];
}
protected PBREffect(PBREffect cloneSource) : base(cloneSource)
{
modelParam = Parameters["model"];
viewParam = Parameters["view"];
projectionParam = Parameters["param"];
lightDirParam = Parameters["lightDir"];
lightColourParam = Parameters["lightColour"];
normalScaleParam = Parameters["normalScale"];
emissiveFactorParam = Parameters["emissiveFactor"];
occlusionStrengthParam = Parameters["occlusionStrength"];
metallicRoughnessValuesParam = Parameters["metallicRoughnessValues"];
baseColorFactorParam = Parameters["baseColorFactor"];
cameraLookParam = Parameters["camera"];
baseColourTextureParam = Parameters["baseColourTexture"];
normalTextureParam = Parameters["normalTexture"];
emissionTextureParam = Parameters["emissionTexture"];
occlusionTextureParam = Parameters["occlusionTexture"];
metallicRoughnessTextureParam = Parameters["metallicRoughnessTexture"];
envDiffuseTextureParam = Parameters["envDiffuseTexture"];
brdfLutTextureParam = Parameters["brdfLutTexture"];
envSpecularTextureParam = Parameters["envSpecularTexture"];
World = cloneSource.World;
View = cloneSource.View;
Projection = cloneSource.Projection;
Light = cloneSource.Light;
NormalScale = cloneSource.normalScale;
EmissiveFactor = cloneSource.EmissiveFactor;
OcclusionStrength = cloneSource.OcclusionStrength;
MetallicRoughnessValue = cloneSource.MetallicRoughnessValue;
BaseColorFactor = cloneSource.BaseColorFactor;
BaseColourTexture = cloneSource.BaseColourTexture;
NormalTexture = cloneSource.NormalTexture;
EmissionTexture = cloneSource.EmissionTexture;
OcclusionTexture = cloneSource.OcclusionTexture;
MetallicRoughnessTexture = cloneSource.MetallicRoughnessTexture;
EnvDiffuseTexture = cloneSource.EnvDiffuseTexture;
BRDFLutTexture = cloneSource.BRDFLutTexture;
EnvSpecularTexture = cloneSource.EnvSpecularTexture;
}
public override Effect Clone()
{
return new PBREffect(this);
}
// FIXME: do param applications here for performance
protected override void OnApply()
{
base.OnApply();
}
}
}