private static string GetVariantDefines(PBRMasterNode masterNode)
{
ShaderGenerator defines = new ShaderGenerator();
// TODO:
// _MATERIAL_FEATURE_SUBSURFACE_SCATTERING
// _MATERIAL_FEATURE_TRANSMISSION
// _MATERIAL_FEATURE_ANISOTROPY
// _MATERIAL_FEATURE_CLEAR_COAT
// _MATERIAL_FEATURE_IRIDESCENCE
switch (masterNode.model)
{
case PBRMasterNode.Model.Metallic:
break;
case PBRMasterNode.Model.Specular:
defines.AddShaderChunk("#define _MATERIAL_FEATURE_SPECULAR_COLOR 1", true);
break;
default:
// TODO: error!
break;
}
// #pragma shader_feature _ALPHATEST_ON
float constantAlpha = 0.0f;
if (masterNode.IsSlotConnected(PBRMasterNode.AlphaThresholdSlotId) ||
(float.TryParse(masterNode.GetSlotValue(PBRMasterNode.AlphaThresholdSlotId, GenerationMode.ForReals), out constantAlpha) && (constantAlpha > 0.0f)))
{
defines.AddShaderChunk("#define _ALPHATEST_ON 1", true);
}
// if (kTesselationMode != TessellationMode.None)
// {
// defines.AddShaderChunk("#define _TESSELLATION_PHONG 1", true);
// }
// #pragma shader_feature _ _VERTEX_DISPLACEMENT _PIXEL_DISPLACEMENT
// switch (kDisplacementMode)
// {
// case DisplacementMode.None:
// break;
// case DisplacementMode.Vertex:
// defines.AddShaderChunk("#define _VERTEX_DISPLACEMENT 1", true);
// break;
// case DisplacementMode.Pixel:
// defines.AddShaderChunk("#define _PIXEL_DISPLACEMENT 1", true);
// Depth offset is only enabled if per pixel displacement is
// if (kDepthOffsetEnable)
// {
// // #pragma shader_feature _DEPTHOFFSET_ON
// defines.AddShaderChunk("#define _DEPTHOFFSET_ON 1", true);
// }
// break;
// case DisplacementMode.Tessellation:
// if (kTessellationEnabled)
// {
// defines.AddShaderChunk("#define _TESSELLATION_DISPLACEMENT 1", true);
// }
// break;
// }
// #pragma shader_feature _VERTEX_DISPLACEMENT_LOCK_OBJECT_SCALE
// #pragma shader_feature _DISPLACEMENT_LOCK_TILING_SCALE
// #pragma shader_feature _PIXEL_DISPLACEMENT_LOCK_OBJECT_SCALE
// #pragma shader_feature _VERTEX_WIND
// #pragma shader_feature _ _REFRACTION_PLANE _REFRACTION_SPHERE
//
// #pragma shader_feature _ _MAPPING_PLANAR _MAPPING_TRIPLANAR // MOVE to a node
// #pragma shader_feature _NORMALMAP_TANGENT_SPACE
// #pragma shader_feature _ _REQUIRE_UV2 _REQUIRE_UV3
//
// #pragma shader_feature _NORMALMAP
if (masterNode.IsSlotConnected(PBRMasterNode.NormalSlotId))
{
defines.AddShaderChunk("#define _NORMALMAP 1", true);
}
// #pragma shader_feature _MASKMAP
// #pragma shader_feature _BENTNORMALMAP
// #pragma shader_feature _EMISSIVE_COLOR_MAP
// #pragma shader_feature _ENABLESPECULAROCCLUSION
// #pragma shader_feature _HEIGHTMAP
// #pragma shader_feature _TANGENTMAP
// #pragma shader_feature _ANISOTROPYMAP
// #pragma shader_feature _DETAIL_MAP // MOVE to a node
// #pragma shader_feature _SUBSURFACE_RADIUS_MAP
// #pragma shader_feature _THICKNESSMAP
// #pragma shader_feature _SPECULARCOLORMAP
// #pragma shader_feature _TRANSMITTANCECOLORMAP
// Keywords for transparent
// #pragma shader_feature _SURFACE_TYPE_TRANSPARENT
if (masterNode.surfaceType != SurfaceType.Opaque)
{
// transparent-only defines
defines.AddShaderChunk("#define _SURFACE_TYPE_TRANSPARENT 1", true);
// #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_PRE_MULTIPLY
if (masterNode.alphaMode == AlphaMode.Alpha)
{
defines.AddShaderChunk("#define _BLENDMODE_ALPHA 1", true);
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
defines.AddShaderChunk("#define _BLENDMODE_ADD 1", true);
}
// else if (masterNode.alphaMode == PBRMasterNode.AlphaMode.PremultiplyAlpha) // TODO
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRE_MULTIPLY 1", true);
// }
// #pragma shader_feature _BLENDMODE_PRESERVE_SPECULAR_LIGHTING
// if (kEnableBlendModePreserveSpecularLighting)
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRESERVE_SPECULAR_LIGHTING 1", true);
// }
// #pragma shader_feature _ENABLE_FOG_ON_TRANSPARENT
// if (kEnableFogOnTransparent)
// {
// defines.AddShaderChunk("#define _ENABLE_FOG_ON_TRANSPARENT 1", true);
// }
}
else
{
// opaque-only defines
}
// MaterialId are used as shader feature to allow compiler to optimize properly
// Note _MATID_STANDARD is not define as there is always the default case "_". We assign default as _MATID_STANDARD, so we never test _MATID_STANDARD
// #pragma shader_feature _ _MATID_SSS _MATID_ANISO _MATID_SPECULAR _MATID_CLEARCOAT
// enable dithering LOD crossfade
// #pragma multi_compile _ LOD_FADE_CROSSFADE
// TODO: We should have this keyword only if VelocityInGBuffer is enable, how to do that ?
//#pragma multi_compile VELOCITYOUTPUT_OFF VELOCITYOUTPUT_ON
return(defines.GetShaderString(2));
}
private static HashSet <string> GetActiveFieldsFromMasterNode(INode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
PBRMasterNode masterNode = iMasterNode as PBRMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.twoSided.isOn)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
activeFields.Add("DoubleSided.Mirror"); // TODO: change this depending on what kind of normal flip you want..
activeFields.Add("FragInputs.isFrontFace"); // will need this for determining normal flip mode
}
}
switch (masterNode.model)
{
case PBRMasterNode.Model.Metallic:
break;
case PBRMasterNode.Model.Specular:
activeFields.Add("Material.SpecularColor");
break;
default:
// TODO: error!
break;
}
float constantAlpha = 0.0f;
if (masterNode.IsSlotConnected(PBRMasterNode.AlphaThresholdSlotId) ||
(float.TryParse(masterNode.GetSlotValue(PBRMasterNode.AlphaThresholdSlotId, GenerationMode.ForReals), out constantAlpha) && (constantAlpha > 0.0f)))
{
activeFields.Add("AlphaTest");
}
// if (kTesselationMode != TessellationMode.None)
// {
// defines.AddShaderChunk("#define _TESSELLATION_PHONG 1", true);
// }
// #pragma shader_feature _ _VERTEX_DISPLACEMENT _PIXEL_DISPLACEMENT
// switch (kDisplacementMode)
// {
// case DisplacementMode.None:
// break;
// case DisplacementMode.Vertex:
// defines.AddShaderChunk("#define _VERTEX_DISPLACEMENT 1", true);
// break;
// case DisplacementMode.Pixel:
// defines.AddShaderChunk("#define _PIXEL_DISPLACEMENT 1", true);
// Depth offset is only enabled if per pixel displacement is
// if (kDepthOffsetEnable)
// {
// // #pragma shader_feature _DEPTHOFFSET_ON
// defines.AddShaderChunk("#define _DEPTHOFFSET_ON 1", true);
// }
// break;
// case DisplacementMode.Tessellation:
// if (kTessellationEnabled)
// {
// defines.AddShaderChunk("#define _TESSELLATION_DISPLACEMENT 1", true);
// }
// break;
// }
// #pragma shader_feature _VERTEX_DISPLACEMENT_LOCK_OBJECT_SCALE
// #pragma shader_feature _DISPLACEMENT_LOCK_TILING_SCALE
// #pragma shader_feature _PIXEL_DISPLACEMENT_LOCK_OBJECT_SCALE
// #pragma shader_feature _VERTEX_WIND
// #pragma shader_feature _ _REFRACTION_PLANE _REFRACTION_SPHERE
//
// #pragma shader_feature _ _MAPPING_PLANAR _MAPPING_TRIPLANAR // MOVE to a node
// #pragma shader_feature _NORMALMAP_TANGENT_SPACE
// #pragma shader_feature _ _REQUIRE_UV2 _REQUIRE_UV3
// #pragma shader_feature _MASKMAP
// #pragma shader_feature _BENTNORMALMAP
// #pragma shader_feature _EMISSIVE_COLOR_MAP
// #pragma shader_feature _ENABLESPECULAROCCLUSION
// #pragma shader_feature _HEIGHTMAP
// #pragma shader_feature _TANGENTMAP
// #pragma shader_feature _ANISOTROPYMAP
// #pragma shader_feature _SUBSURFACE_RADIUS_MAP
// #pragma shader_feature _THICKNESSMAP
// #pragma shader_feature _SPECULARCOLORMAP
// #pragma shader_feature _TRANSMITTANCECOLORMAP
// Keywords for transparent
// #pragma shader_feature _SURFACE_TYPE_TRANSPARENT
if (masterNode.surfaceType != SurfaceType.Opaque)
{
// transparent-only defines
activeFields.Add("SurfaceType.Transparent");
// #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_PRE_MULTIPLY
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
// else if (masterNode.alphaMode == PBRMasterNode.AlphaMode.PremultiplyAlpha) // TODO
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRE_MULTIPLY 1", true);
// }
// #pragma shader_feature _BLENDMODE_PRESERVE_SPECULAR_LIGHTING
// if (kEnableBlendModePreserveSpecularLighting)
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRESERVE_SPECULAR_LIGHTING 1", true);
// }
// #pragma shader_feature _ENABLE_FOG_ON_TRANSPARENT
// if (kEnableFogOnTransparent)
// {
// defines.AddShaderChunk("#define _ENABLE_FOG_ON_TRANSPARENT 1", true);
// }
}
else
{
// opaque-only defines
}
// enable dithering LOD crossfade
// #pragma multi_compile _ LOD_FADE_CROSSFADE
// TODO: We should have this keyword only if VelocityInGBuffer is enable, how to do that ?
//#pragma multi_compile VELOCITYOUTPUT_OFF VELOCITYOUTPUT_ON
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(INode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
PBRMasterNode masterNode = iMasterNode as PBRMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.twoSided.isOn)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
activeFields.Add("DoubleSided.Mirror"); // TODO: change this depending on what kind of normal flip you want..
activeFields.Add("FragInputs.isFrontFace"); // will need this for determining normal flip mode
}
}
switch (masterNode.model)
{
case PBRMasterNode.Model.Metallic:
break;
case PBRMasterNode.Model.Specular:
activeFields.Add("Material.SpecularColor");
break;
default:
// TODO: error!
break;
}
float constantAlpha = 0.0f;
if (masterNode.IsSlotConnected(PBRMasterNode.AlphaThresholdSlotId) ||
(float.TryParse(masterNode.GetSlotValue(PBRMasterNode.AlphaThresholdSlotId, GenerationMode.ForReals), out constantAlpha) && (constantAlpha > 0.0f)))
{
activeFields.Add("AlphaTest");
}
// Keywords for transparent
// #pragma shader_feature _SURFACE_TYPE_TRANSPARENT
if (masterNode.surfaceType != SurfaceType.Opaque)
{
// transparent-only defines
activeFields.Add("SurfaceType.Transparent");
// #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_PRE_MULTIPLY
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
// else if (masterNode.alphaMode == PBRMasterNode.AlphaMode.PremultiplyAlpha) // TODO
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRE_MULTIPLY 1", true);
// }
}
else
{
// opaque-only defines
}
// enable dithering LOD crossfade
// #pragma multi_compile _ LOD_FADE_CROSSFADE
// TODO: We should have this keyword only if VelocityInGBuffer is enable, how to do that ?
//#pragma multi_compile VELOCITYOUTPUT_OFF VELOCITYOUTPUT_ON
return(activeFields);
}