public MaterialEntry(EndianBinaryReader er)
{
Name = er.ReadString(Encoding.ASCII, 20).Replace("\0", "");
BufferColor = er.ReadColor8();
ConstColors = new Color[6];
ConstColors[0] = er.ReadColor8();
ConstColors[1] = er.ReadColor8();
ConstColors[2] = er.ReadColor8();
ConstColors[3] = er.ReadColor8();
ConstColors[4] = er.ReadColor8();
ConstColors[5] = er.ReadColor8();
Flags = er.ReadUInt32();
//Material Flag:
// 0-1: Nr texMap
// 2-3: Nr texMatrix
// 4-5: Nr texCoordGen
// 6-8: Nr tevStage
// 9: Has alphaCompare
// 10: Has blendMode
// 11: Use Texture Only
// 12: Separate Blend Mode
// 14: Has Indirect Parameter
//15-16: Nr projectionTexGenParameter
// 17: Has Font Shadow Parameter
TexMaps = new TexMap[Flags & 3];
for (int i = 0; i < (Flags & 3); i++)
{
TexMaps[i] = new TexMap(er);
}
TexMatrices = new TexMatrix[(Flags >> 2) & 3];
for (int i = 0; i < ((Flags >> 2) & 3); i++)
{
TexMatrices[i] = new TexMatrix(er);
}
TexCoordGens = new TexCoordGen[(Flags >> 4) & 3];
for (int i = 0; i < ((Flags >> 4) & 3); i++)
{
TexCoordGens[i] = new TexCoordGen(er);
}
TevStages = new TevStage[(Flags >> 6) & 7];
for (int i = 0; i < ((Flags >> 6) & 7); i++)
{
TevStages[i] = new TevStage(er);
}
if (((Flags >> 9) & 1) == 1)
{
AlphaTest = new AlphaCompare(er);
}
if (((Flags >> 10) & 1) == 1)
{
ColorBlendMode = new BlendMode(er);
}
if (((Flags >> 12) & 1) == 1)
{
AlphaBlendMode = new BlendMode(er);
}
//Some more things
}
private static string GenerateTexGens(StringBuilder stream, Material mat)
{
for (int i = 0; i < mat.NumTexGens; i++)
{
TexCoordGen gen = mat.TexGens[i];
stream.AppendLine($"\t// TexGen { i } - Type: { gen.Type }, Source: { gen.Source }, Matrix: { gen.TexMatrixSource }");
stream.AppendLine($"\tv_Tex{ i } = { GenerateTexGenPost(gen) };\n");
}
return(stream.ToString());
}
private static TexCoordGen ReadTexCoordGen(EndianBinaryReader stream)
{
var retVal = new TexCoordGen
{
Type = (GXTexGenType)stream.ReadByte(),
Source = (GXTexGenSrc)stream.ReadByte(),
TexMatrixSource = (GXTexMatrix)stream.ReadByte()
};
Trace.Assert(stream.ReadByte() == 0xFF); // Padding
return(retVal);
}
private static string GenerateTexGenPost(TexCoordGen gen)
{
StringBuilder stream = new StringBuilder();
string gen_source = GenerateTexGenSource(gen.Source);
if (gen.Type == GXTexGenType.SRTG)
{
return($"vec3({ gen_source }.xy, 1.0)");
}
else if (gen.Type == GXTexGenType.Matrix2x4)
{
return($"vec3({ GenerateTexGenMatrixMult(gen, gen_source) }.xy, 1.0)");
}
else if (gen.Type == GXTexGenType.Matrix3x4)
{
return(GenerateTexGenMatrixMult(gen, gen_source));
}
return(stream.ToString());
}
private static string GenerateTexGenMatrixMult(TexCoordGen gen, string src)
{
if (false)
{
}
else
{
if (gen.TexMatrixSource == GXTexMatrix.Identity)
{
return($"{ src }.xyz");
}
else if (gen.TexMatrixSource >= GXTexMatrix.TexMtx0)
{
int id = (gen.TexMatrixSource - GXTexMatrix.TexMtx0) / 3;
return($"(mat4x4(TexMatrices[{ id }]) * { src })");
}
else
{
return(src);
}
}
}
public MaterialEntry(EndianBinaryReader er)
{
Name = er.ReadString(Encoding.ASCII, 20).Replace("\0", "");
BufferColor = er.ReadColor8();
ConstColors = new Color[6];
ConstColors[0] = er.ReadColor8();
ConstColors[1] = er.ReadColor8();
ConstColors[2] = er.ReadColor8();
ConstColors[3] = er.ReadColor8();
ConstColors[4] = er.ReadColor8();
ConstColors[5] = er.ReadColor8();
Flags = er.ReadUInt32();
//Material Flag:
// 0-1: Nr texMap
// 2-3: Nr texMatrix
// 4-5: Nr texCoordGen
// 6-8: Nr tevStage
// 9: Has alphaCompare
// 10: Has blendMode
// 11: Use Texture Only
// 12: Separate Blend Mode
// 14: Has Indirect Parameter
//15-16: Nr projectionTexGenParameter
// 17: Has Font Shadow Parameter
TexMaps = new TexMap[Flags & 3];
for (int i = 0; i < (Flags & 3); i++)
{
TexMaps[i] = new TexMap(er);
}
TexMatrices = new TexMatrix[(Flags >> 2) & 3];
for (int i = 0; i < ((Flags >> 2) & 3); i++)
{
TexMatrices[i] = new TexMatrix(er);
}
TexCoordGens = new TexCoordGen[(Flags >> 4) & 3];
for (int i = 0; i < ((Flags >> 4) & 3); i++)
{
TexCoordGens[i] = new TexCoordGen(er);
}
TevStages = new TevStage[(Flags >> 6) & 7];
for (int i = 0; i < ((Flags >> 6) & 7); i++)
{
TevStages[i] = new TevStage(er);
}
if (((Flags >> 9) & 1) == 1) AlphaTest = new AlphaCompare(er);
if (((Flags >> 10) & 1) == 1) ColorBlendMode = new BlendMode(er);
if (((Flags >> 12) & 1) == 1) AlphaBlendMode = new BlendMode(er);
//Some more things
}
public static bool GenerateVertexShader(Shader shader, Material mat)
{
StringBuilder stream = new StringBuilder();
// Shader Header
stream.AppendLine("#version 330 core");
stream.AppendLine();
// Input Format
stream.AppendLine("// Input");
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Position))
{
stream.AppendLine("in vec3 RawPosition;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Normal))
{
stream.AppendLine("in vec3 RawNormal;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Color0))
{
stream.AppendLine("in vec4 RawColor0;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Color1))
{
stream.AppendLine("in vec4 RawColor1;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex0))
{
stream.AppendLine("in vec2 RawTex0;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex1))
{
stream.AppendLine("in vec2 RawTex1;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex2))
{
stream.AppendLine("in vec2 RawTex2;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex3))
{
stream.AppendLine("in vec2 RawTex3;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex4))
{
stream.AppendLine("in vec2 RawTex4;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex5))
{
stream.AppendLine("in vec2 RawTex5;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex6))
{
stream.AppendLine("in vec2 RawTex6;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex7))
{
stream.AppendLine("in vec2 RawTex7;");
}
stream.AppendLine();
// Output Format
stream.AppendLine("// Output");
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Normal))
{
stream.AppendLine("out vec3 Normal;");
}
for (int i = 0; i < mat.NumChannelControls; i++)
{
stream.AppendLine(string.Format("out vec4 Color{0};", i));
}
for (int texGen = 0; texGen < mat.NumTexGens; texGen++)
{
if (mat.TexGenInfos[texGen] != null)
{
stream.AppendLine(string.Format("out vec3 Tex{0};", texGen));
}
}
// Uniforms
stream.AppendLine();
stream.AppendLine("// Uniforms");
stream.AppendLine(
" uniform mat4 ModelMtx;\n" +
" uniform mat4 ViewMtx;\n" +
" uniform mat4 ProjMtx;\n" +
"\n" +
" uniform mat4 TexMtx[10];\n" +
" uniform mat4 PostMtx[20];\n" +
" uniform vec4 COLOR0_Amb;\n" +
" uniform vec4 COLOR0_Mat;\n" +
" uniform vec4 COLOR1_Amb;\n" +
" uniform vec4 COLOR1_Mat;\n" +
"\n" +
"struct GXLight\n" +
"{\n" +
" vec4 Position;\n" +
" vec4 Direction;\n" +
" vec4 Color;\n" +
" vec4 DistAtten;\n" +
" vec4 AngleAtten;\n" +
"};\n" +
"\n" +
" GXLight Lights[8];\n" +
"\n" +
"uniform int NumLights;\n" +
"uniform vec4 ambLightColor;\n");
// Main Shader Code
stream.AppendLine("// Main");
stream.AppendLine("void main()");
stream.AppendLine("{");
stream.AppendLine(" mat4 MVP = ProjMtx * ViewMtx * ModelMtx;");
stream.AppendLine(" mat4 MV = ViewMtx * ModelMtx;");
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Position))
{
stream.AppendLine(" gl_Position = MVP * vec4(RawPosition, 1);");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Normal))
{
stream.AppendLine(" Normal = normalize(RawNormal.xyz * inverse(transpose(mat3(MV))));");
}
//if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Color0))
// stream.AppendLine(" Color0 = RawColor0;");
//if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Color1))
//stream.AppendLine(" Color1 = RawColor1;");
stream.AppendLine();
stream.AppendLine(" // Ambient Colors & Material Colors");
// Add the Ambient Colors for the Material
for (int a = 0; a < mat.AmbientColors.Length; a++)
{
stream.AppendLine(string.Format(" vec4 ambColor{0} = vec4({1}, {2}, {3}, {4});", a, mat.AmbientColors[a].R, mat.AmbientColors[a].G, mat.AmbientColors[a].B, mat.AmbientColors[a].A));
}
// Add in the Material Colors
for (int m = 0; m < mat.MaterialColors.Length; m++)
{
stream.AppendLine(string.Format(" vec4 matColor{0} = vec4({1}, {2}, {3}, {4});", m, mat.MaterialColors[m].R, mat.MaterialColors[m].G, mat.MaterialColors[m].B, mat.MaterialColors[m].A));
}
stream.AppendLine();
stream.AppendLine(string.Format(" // ChanCtrl's - {0} count", mat.NumChannelControls));
// Channel Controllers
// A vertex can have up to two color channels (RGBA each) which gives us four possible channels:
// color0, color1, alpha0, alpha1
// Each channel has an associated ambient color/alpha and a material color/alpha. These can come
// from vertex colors or existing amb/mat registers.
for (int chanSel = 0; chanSel < mat.NumChannelControls; chanSel++)
{
ChanCtrl chanInfo = mat.ChannelControls[chanSel];
string chanTarget, ambColor, matColor, ambLight, diffLight;
string swizzle, chan;
bool alpha;
// Todo: Is this really a fixed order?
switch (chanSel)
{
case /* Color0 */ 0: chan = "0"; swizzle = ".rgb"; alpha = false; break;
case /* Alpha0 */ 1: chan = "0"; swizzle = ".a"; alpha = true; break;
case /* Color1 */ 2: chan = "1"; swizzle = ".rgb"; alpha = false; break;
case /* Alpha1 */ 3: chan = "1"; swizzle = ".a"; alpha = true; break;
default:
WLog.Warning(LogCategory.TEVShaderGenerator, shader, "Unknown vertex output color channel {0}, skipping.", chanSel);
continue;
}
chanTarget = string.Format("Color{0}{1}", chan, swizzle);
ambColor = (chanInfo.AmbientSrc == GXColorSrc.Vertex ? "RawColor" : "ambColor") + chan + swizzle;
matColor = (chanInfo.MaterialSrc == GXColorSrc.Vertex ? "RawColor" : "matColor") + chan + swizzle;
ambLight = "ambLightColor" + swizzle;
diffLight = GetLightCalcString(chanInfo, alpha);
//Color{0}.rgb = ambient * ambLightColor * light
stream.AppendLine(string.Format(" Color{0} = vec4(1, 1, 1, 1);", chan));
if (chanInfo.Enable)
{
stream.AppendLine(string.Format(" {0} = {1} * {2} + {3} * {4};", chanTarget, ambColor, ambLight, matColor, diffLight));
}
else
{
stream.AppendLine(string.Format(" {0} = {1};", chanTarget, matColor));
}
stream.AppendLine();
stream.AppendLine();
}
// Texture Coordinate Generation
stream.AppendLine(string.Format(" // TexGen - {0} count", mat.NumTexGens));
for (int i = 0; i < mat.NumTexGens; i++)
{
if (mat.TexGenInfos[i] == null)
{
continue;
}
TexCoordGen texGen = mat.TexGenInfos[i];
string texGenSrc;
switch (texGen.Source)
{
case GXTexGenSrc.Position: texGenSrc = "RawPosition"; break;
case GXTexGenSrc.Normal: texGenSrc = "RawNormal"; break;
case GXTexGenSrc.Color0: texGenSrc = "Color0"; break;
case GXTexGenSrc.Color1: texGenSrc = "Color1"; break;
case GXTexGenSrc.Tex0: texGenSrc = "RawTex0"; break; // Should Tex0 be TEXTURE 0? Or is it TEX0 = Input TEX0, while TEXCOORD0 = Output TEX0?
case GXTexGenSrc.Tex1: texGenSrc = "RawTex1"; break;
case GXTexGenSrc.Tex2: texGenSrc = "RawTex2"; break;
case GXTexGenSrc.Tex3: texGenSrc = "RawTex3"; break;
case GXTexGenSrc.Tex4: texGenSrc = "RawTex4"; break;
case GXTexGenSrc.Tex5: texGenSrc = "RawTex5"; break;
case GXTexGenSrc.Tex6: texGenSrc = "RawTex6"; break;
case GXTexGenSrc.Tex7: texGenSrc = "RawTex7"; break;
case GXTexGenSrc.TexCoord0: texGenSrc = "Tex0"; break;
case GXTexGenSrc.TexCoord1: texGenSrc = "Tex1"; break;
case GXTexGenSrc.TexCoord2: texGenSrc = "Tex2"; break;
case GXTexGenSrc.TexCoord3: texGenSrc = "Tex3"; break;
case GXTexGenSrc.TexCoord4: texGenSrc = "Tex4"; break;
case GXTexGenSrc.TexCoord5: texGenSrc = "Tex5"; break;
case GXTexGenSrc.TexCoord6: texGenSrc = "Tex6"; break;
case GXTexGenSrc.Tangent:
case GXTexGenSrc.Binormal:
default:
WLog.Warning(LogCategory.TEVShaderGenerator, shader, "Unsupported TexGenSrc: {0}, defaulting to TEXCOORD0.", texGen.Source);
texGenSrc = "Tex0";
break;
}
if (texGen.TexMatrixSource == GXTexMatrix.Identity)
{
switch (texGen.Type)
{
case GXTexGenType.Matrix2x4:
stream.AppendLine(string.Format(" Tex{0} = vec3({1}.xy, 0);", i, texGenSrc));
break;
case GXTexGenType.Matrix3x4:
stream.AppendLine(string.Format(" float3 uvw = {0}.xyz;", texGenSrc));
stream.AppendLine(string.Format(" Tex{0} = vec3((uvw / uvw.z).xy,0);", i));
break;
case GXTexGenType.SRTG:
stream.AppendLine(string.Format(" Tex{0} = vec3({1}.rg, 0);", i, texGenSrc));
break;
case GXTexGenType.Bump0:
case GXTexGenType.Bump1:
case GXTexGenType.Bump2:
case GXTexGenType.Bump3:
case GXTexGenType.Bump4:
case GXTexGenType.Bump5:
case GXTexGenType.Bump6:
case GXTexGenType.Bump7:
default:
WLog.Warning(LogCategory.TEVShaderGenerator, shader, "Unsupported TexMatrixSource: {0}, Defaulting to Matrix2x4", texGen.TexMatrixSource);
stream.AppendLine(string.Format(" Tex{0} = vec3({1}.xy, 0);", i, texGenSrc));
break;
}
}
else
{
// Convert to TexMtx0 to TexMtx9
int matIndex = ((int)texGen.TexMatrixSource - 30) / 3;
switch (texGen.Type)
{
default:
WLog.Warning(LogCategory.TEVShaderGenerator, shader, "Unsupported TexMatrixSource");
break;
}
}
}
stream.AppendLine("}");
stream.AppendLine();
// Compile the Vertex Shader and return whether it compiled sucesfully or not.
Directory.CreateDirectory("ShaderDump");
System.IO.File.WriteAllText("ShaderDump/" + mat.Name + "_vert_output", stream.ToString());
return(shader.CompileSource(stream.ToString(), OpenTK.Graphics.OpenGL.ShaderType.VertexShader));
}
private void GenerateTexGenXFCommands(Material mat)
{
XFCommand texGensCommand = new XFCommand(XFRegister.SETTEXMTXINFO);
XFCommand dtTexGensCommand = new XFCommand(XFRegister.SETPOSMTXINFO);
for (int i = 0; i < 8; i++)
{
if (mat.TexCoord1Gens[i] == null)
{
continue;
}
TexCoordGen texgen = mat.TexCoord1Gens[i].Value;
XFCommandArgument texGenArg = new XFCommandArgument();
texGenArg.SetBits(0, 1, 1);
texGenArg.SetBits(0, 2, 1);
texGenArg.SetBits(5, 12, 3);
texGenArg.SetBits(0, 15, 3);
if (texgen.Type == TexGenType.Matrix3x4)
{
texGenArg.SetFlag(true, 1);
}
switch (texgen.Source)
{
case TexGenSrc.Position:
case TexGenSrc.Normal:
case TexGenSrc.Binormal:
case TexGenSrc.Tangent:
texGenArg.SetFlag(true, 2);
break;
}
switch (texgen.Type)
{
case TexGenType.Bump0:
case TexGenType.Bump1:
case TexGenType.Bump2:
case TexGenType.Bump3:
case TexGenType.Bump4:
case TexGenType.Bump5:
case TexGenType.Bump6:
case TexGenType.Bump7:
texGenArg.SetBits(1, 4, 2);
texGenArg.SetBits(texgen.Source - TexGenSrc.Tex0, 12, 3);
texGenArg.SetBits(texgen.Type - TexGenType.Bump0, 15, 3);
texGenArg.SetBits(5, 7, 3);
break;
case TexGenType.SRTG:
texGenArg.SetBits(2, 7, 3);
if (texgen.Source == TexGenSrc.Color0)
{
texGenArg.SetBits(2, 4, 2);
}
else if (texgen.Source == TexGenSrc.Color1)
{
texGenArg.SetBits(3, 4, 2);
}
break;
default:
texGenArg.SetBits(0, 4, 2);
if (texgen.Source == TexGenSrc.Position || texgen.Source == TexGenSrc.Normal)
{
texGenArg.SetBits((int)texgen.Source, 7, 3);
}
else
{
texGenArg.SetBits((int)texgen.Source + 1, 7, 3);
}
break;
}
XFCommandArgument dtTexGenArg = new XFCommandArgument();
dtTexGenArg.SetFlag(false, 8);
dtTexGenArg.SetBits(61, 0, 6);
texGensCommand.Args.Add(texGenArg);
dtTexGensCommand.Args.Add(dtTexGenArg);
}
if (texGensCommand.Args.Count > 0)
{
XFCommands.Add(texGensCommand);
XFCommands.Add(dtTexGensCommand);
}
}
public Material(ref BinaryStream s)
{
name = Encoding.ASCII.GetString(s.ReadBytes(28)).Replace("\0", "");
flag = s.ReadUInt32();
unknown = s.ReadUInt32();
byte[] black = s.ReadBytes(4), white = s.ReadBytes(4);
blackColor = Color.FromArgb(black[3], black[0], black[1], black[2]);
whiteColor = Color.FromArgb(white[3], white[0], black[1], black[2]);
texMapCount = (uint)(flag & 0x03);
texSRTCount = (uint)((flag >> 2) & 0x03);
texCoordGenCount = (uint)((flag >> 4) & 0x03);
tevStageCount = (uint)((flag >> 6) & 0x07);
hasAlphaCompare = ((flag >> 9) & 0x01) == 1;
hasBlendMode = ((flag >> 10) & 0x01) == 1;
useTextureOnly = ((flag >> 11) & 0x01) == 1;
seperateBlendMode = ((flag >> 12) & 0x01) == 1;
hasIndirectParameter = ((flag >> 14) & 0x01) == 1;
projectionTexGenParameterCount = (uint)((flag >> 15) & 0x03);
hasFontShadowParameter = ((flag >> 17) & 0x01) == 1;
thresholingAlphaInterpolation = ((flag >> 18) & 0x01) == 1;
texMaps = new TexMap[texMapCount];
for (int i = 0; i < texMapCount; i++)
{
texMaps[i] = new TexMap(ref s);
}
texSRTs = new TexSRT[texSRTCount];
for (int i = 0; i < texSRTCount; i++)
{
texSRTs[i] = new TexSRT(ref s);
}
texCoords = new TexCoordGen[texCoordGenCount];
for (int i = 0; i < texCoordGenCount; i++)
{
texCoords[i] = new TexCoordGen(ref s);
}
tevStages = new TevStage[tevStageCount];
for (int i = 0; i < tevStageCount; i++)
{
tevStages[i] = new TevStage(ref s);
}
if (hasAlphaCompare)
{
alphaCompare = new AlphaCompare(ref s);
}
if (hasBlendMode)
{
blendMode = new BlendMode(ref s);
}
if (seperateBlendMode)
{
blendAlpha = new BlendMode(ref s);
}
if (hasIndirectParameter)
{
indirectParameter = new IndirectParameter(ref s);
}
projectionTexGenParameters = new ProjectionTexGenParameters[projectionTexGenParameterCount];
for (int i = 0; i < projectionTexGenParameterCount; i++)
{
projectionTexGenParameters[i] = new ProjectionTexGenParameters(ref s);
}
if (hasFontShadowParameter)
{
fontShadowParameter = new FontShadowParameter(ref s);
}
//System.Windows.Forms.MessageBox.Show($"[{s.BaseStream.Position}] mat end");
}
public static string GenerateVertexShader(Material mat, MAT3 data)
{
StringBuilder stream = new StringBuilder();
// Shader Header
stream.AppendLine("// Automatically Generated File. All changes will be lost.");
stream.AppendLine("#version 330 core");
stream.AppendLine();
// Examine the attributes the mesh has so we can ensure the shader knows about the incoming data.
// I don't think this is technically right, but meh.
stream.AppendLine("// Per-Vertex Input");
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Position))
{
stream.AppendLine("in vec3 RawPosition;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Normal))
{
stream.AppendLine("in vec3 RawNormal;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Color0))
{
stream.AppendLine("in vec4 RawColor0;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Color1))
{
stream.AppendLine("in vec4 RawColor1;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex0))
{
stream.AppendLine("in vec2 RawTex0;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex1))
{
stream.AppendLine("in vec2 RawTex1;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex2))
{
stream.AppendLine("in vec2 RawTex2;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex3))
{
stream.AppendLine("in vec2 RawTex3;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex4))
{
stream.AppendLine("in vec2 RawTex4;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex5))
{
stream.AppendLine("in vec2 RawTex5;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex6))
{
stream.AppendLine("in vec2 RawTex6;");
}
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Tex7))
{
stream.AppendLine("in vec2 RawTex7;");
}
stream.AppendLine();
stream.AppendLine("// Output (Interpolated)");
stream.AppendLine();
// TEV uses up to 4 channels to accumulate the result of Per-Vertex Lighting/Material/Ambient lighting.
// Color0, Alpha0, Color1, and Alpha1 are the four possible channel names.
stream.AppendFormat("// NumChannelControls: {0}\n", mat.NumChannelControls);
stream.AppendFormat("out vec4 colors_0;\n");
stream.AppendFormat("out vec4 colors_1;\n");
stream.AppendLine();
// TEV can generate up to 16 (?) sets of Texture Coordinates by taking an incoming data value (UV, POS, NRM, BINRM, TNGT) and transforming it by a matrix.
stream.AppendFormat("// NumTexGens: {0}\n", mat.NumTexGensIndex);
for (int i = 0; i < mat.NumTexGensIndex; i++)
{
stream.AppendFormat("out vec3 TexGen{0};\n", i);
}
stream.AppendLine();
// Declare shader Uniforms coming in from the CPU.
stream.AppendLine("// Uniforms");
stream.AppendLine
(
"uniform mat4 ModelMtx;\n" +
"uniform mat4 ViewMtx;\n" +
"uniform mat4 ProjMtx;\n" +
"\n" +
"uniform mat4 TexMtx[10];\n" +
"uniform mat4 PostMtx[20];\n" +
"uniform vec4 COLOR0_Amb;\n" +
"uniform vec4 COLOR0_Mat;\n" +
"uniform vec4 COLOR1_Mat;\n" +
"uniform vec4 COLOR1_Amb;\n" +
"\n" +
"struct GXLight\n" +
"{\n" +
" vec4 Position;\n" +
" vec4 Direction;\n" +
" vec4 Color;\n" +
" vec4 CosAtten; //AngleAtten\n" + // 1.875000, 0, 0 ?
" vec4 DistAtten;\n" + // 1.875000, 0, 0 ?
"};\n" +
"\n" +
"layout(std140) uniform LightBlock\n" +
"{\n\tGXLight Lights[8];\n};\n"
);
stream.AppendLine();
// Main Shader Code
stream.AppendLine("// Main Vertex Shader");
stream.AppendLine("void main()\n{");
stream.AppendLine("\tmat4 MVP = ProjMtx * ViewMtx * ModelMtx;");
stream.AppendLine("\tmat4 MV = ViewMtx * ModelMtx;");
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Position))
{
stream.AppendLine("\tgl_Position = MVP * vec4(RawPosition, 1);");
stream.AppendLine("\tvec4 worldPos = ModelMtx * vec4(RawPosition, 1);");
}
stream.AppendLine();
// Do Color Channel Fixups
if (mat.NumChannelControls < 2)
{
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Color1))
{
stream.AppendFormat("\tcolors_1 = RawColor1;\n");
}
else
{
stream.AppendFormat("\tcolors_1 = vec4(1, 1, 1, 1);\n");
}
}
stream.AppendLine();
// TEV Channel Colors.
// A vertex can have two colors each (Color0, Color1) and each color has two channels - RGB and A. This gives us
// up to 4 channels, color0, color1, alpha0, and alpha1. Channels are associated with an ambient color/alpha which can
// come from a variety of sources - vertex colors, or special ambient and material registers. The register colors
// are set in GX via the command: GXSetChanAmbColor(GXChanneLID chan, GXColor amb_color), and GXSetChanMatColor(GXChannelID chan, GXColor mat_color);
// Now, the source for each channel can be controlled by another command:
// GXSetChanCtrl(GXCHannelID chan, bool enable, GXColorSrc amb_src, GXColorSrc mat_src, GXLightID light_mask, GXDiffuseFn diff_fn, GXAttnFn attn_fn);
//
// If the lighting channel is disabled, then the material color for that channel is passed through unmodified. The mat_src parameter specifies if the
// material color comes from the Vertex Color, or from the Material Register. If the channel is enabled, then lighting needs to be computed for each light
// enabled in the light_mask.
stream.AppendLine("\tvec4 ambColor = vec4(1,1,1,1);\n\tvec4 matColor = vec4(1,1,1,1);\n\tvec4 lightAccum = vec4(0,0,0,0);\n\tvec4 lightFunc;");
stream.AppendLine("\tvec3 ldir; float dist; float dist2; float attn;"); // Declaring these all anyways in case we use lighting.
if (mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.Normal))
{
stream.AppendLine("\tvec3 _norm0 = RawNormal.xyz;");
}
else
{
stream.AppendLine("\tvec3 _norm0 = vec3(0.0, 0.0, 0.0);");
}
stream.AppendFormat("\t// {0} Channel Controller(s).\n", mat.NumChannelControls);
for (int i = 0; i < mat.NumChannelControls; i++)
{
ColorChannelControl channelControl = mat.ColorChannelControls[i];
stream.AppendFormat("\t// Channel Control: {0} - LightingEnabled: {1} MaterialSrc: {2} LightMask: {3} DiffuseFn: {4} AttenuationFn: {5} AmbientSrc: {6}\n",
i, channelControl.LightingEnabled, channelControl.MaterialSrc, channelControl.LitMask, channelControl.DiffuseFunction, channelControl.AttenuationFunction, channelControl.AmbientSrc);
string swizzle, channel;
switch (i)
{
case /* Color0 */ 0: channel = "0"; swizzle = ".rgb"; break;
case /* Alpha0 */ 1: channel = "0"; swizzle = ".a"; break;
case /* Color1 */ 2: channel = "1"; swizzle = ".rgb"; break;
case /* Alpha1 */ 3: channel = "1"; swizzle = ".a"; break; // ToDo: This is wrong. There's a maximum of 2 color channels
default: Console.WriteLine("Unknown Color Channel Control Index: {0}", i); continue;
}
bool isAlphaChannel = i % 2 != 0;
string channelTarget = string.Format("colors_{0}", channel);
bool ambSrcVtx = channelControl.AmbientSrc == GXColorSrc.Vertex;
bool matSrcVtx = channelControl.MaterialSrc == GXColorSrc.Vertex;
string ambColorSrc = string.Format("{0}{1}", (ambSrcVtx ? "RawColor" : "COLOR"), channel + (ambSrcVtx ? "" : "_Amb"));
string matColorSrc = string.Format("{0}{1}", (matSrcVtx ? "RawColor" : "COLOR"), channel + (matSrcVtx ? "" : "_Mat"));
stream.AppendFormat("\tambColor = {0};\n", ambColorSrc);
stream.AppendFormat("\tmatColor = {0};\n", matColorSrc);
for (int l = 0; l < 8; l++)
{
bool isLit = channelControl.LitMask.HasFlag((GXLightMask)(1 << l));
if (isLit)
{
stream.AppendFormat("\t// ChannelControl: {0} Light: {1}\n", i, l);
GenerateLightVertexShader(stream, channelControl, l, swizzle, isAlphaChannel ? 1 : 3);
}
}
if (channelControl.LightingEnabled)
{
stream.AppendLine("\tvec4 illum = clamp(ambColor + lightAccum, 0, 1);");
}
stream.AppendFormat("\tlightFunc = {0};\n", channelControl.LightingEnabled ? "illum" : "vec4(1.0, 1.0, 1.0, 1.0)");
stream.AppendFormat("\t{0}{1} = (matColor * lightFunc){1};\n", channelTarget, swizzle);
// Not sure if this is right, but if a single color channel is enabled then the alpha component of color_0 never gets assigned
// and then something tries to use it and it's empty instead of being the ambSrc/matSrc alpha.
if (mat.NumChannelControls == 1 || mat.NumChannelControls == 3)
{
// ToDo: https://github.com/dolphin-emu/dolphin/blob/master/Source/Core/VideoCommon/LightingShaderGen.h#L184 looks like a better implementation
stream.AppendLine("\t// Doing an unknown fixup. There's only one color channel enabled, so we never write to the alpha of the color_*, and thus it never gets initialized.");
stream.AppendFormat("\t{0}.a = matColor.a;\n", channelTarget);
}
}
// TEV "TexGen" Texture Coordinate Generation
// TEV can generate texture coordinates on the fly from a variety of sources. The various ways all follow the form of:
// dst_coord = func(src_param, mtx) - that is, the destination coordinate is generated by multiplying an input source by a 2x4 or 3x4 matrix.
// The input coordinates can come from one of the following locations: TEX0-7, POS, NRM, BINRM, TANGENT.
// GX has a default set of texture matrices (GXTexMtx enum).
stream.AppendFormat("\t// {0} Texture Coordinate Generators.\n", mat.NumTexGensIndex);
stream.Append("\tvec4 coord;\n");
for (int i = 0; i < mat.NumTexGensIndex; i++)
{
TexCoordGen texGen = mat.TexGenInfoIndexes[i];
stream.AppendFormat("\t// TexGen: {0} Type: {1} Source: {2} TexMatrixIndex: {3}\n", i, texGen.Type, texGen.Source, texGen.TexMatrixSource);
stream.AppendLine("\t{"); // False scope block so we can re-declare variables
string texGenSource;
switch (texGen.Source)
{
case GXTexGenSrc.Position: texGenSource = "vec4(RawPosition.xyz, 1.0)"; break;
case GXTexGenSrc.Normal: texGenSource = "vec4(_norm0.xyz, 1.0)"; break;
case GXTexGenSrc.Color0: texGenSource = "colors_0"; break;
case GXTexGenSrc.Color1: texGenSource = "colors_1"; break;
case GXTexGenSrc.Binormal: texGenSource = "vec4(RawBinormal.xyz, 1.0)"; break;
case GXTexGenSrc.Tangent: texGenSource = "vec4(RawTangent.xyz, 1.0)"; break;
case GXTexGenSrc.Tex0:
case GXTexGenSrc.Tex1:
case GXTexGenSrc.Tex2:
case GXTexGenSrc.Tex3:
case GXTexGenSrc.Tex4:
case GXTexGenSrc.Tex5:
case GXTexGenSrc.Tex6:
case GXTexGenSrc.Tex7:
texGenSource = string.Format("vec4(RawTex{0}.xy, 1.0, 1.0)", ((int)texGen.Source - (int)GXTexGenSrc.Tex0)); break;
// This implies using a texture coordinate set already generated by TEV.
case GXTexGenSrc.TexCoord0:
case GXTexGenSrc.TexCoord1:
case GXTexGenSrc.TexCoord2:
case GXTexGenSrc.TexCoord3:
case GXTexGenSrc.TexCoord4:
case GXTexGenSrc.TexCoord5:
case GXTexGenSrc.TexCoord6:
texGenSource = string.Format("vec4(TexGen{0}.xy, 1.0, 1.0)", ((int)texGen.Source - (int)GXTexGenSrc.TexCoord0)); break;
default: Console.WriteLine("Unsupported TexGenSrc: {0}, defaulting to TexCoord0.", texGen.Source); texGenSource = "RawTex0"; break;
}
stream.AppendFormat("\t\tcoord = {0};\n", texGenSource);
TexMatrixProjection matrixProj = TexMatrixProjection.TexProj_ST;
if (texGen.TexMatrixSource != GXTexMatrix.Identity)
{
matrixProj = mat.TexMatrixIndexes[(((int)texGen.TexMatrixSource) - 30) / 3].Projection;
}
// TEV Texture Coordinate generation takes the general form:
// dst_coord = func(src_param, mtx), where func is GXTexGenType, src_param is GXTexGenSrc, and mtx is GXTexMtx.
string destCoord = string.Format("TexGen{0}", i);
switch (texGen.Type)
{
case GXTexGenType.Matrix3x4:
case GXTexGenType.Matrix2x4:
//if(mat.VtxDesc.AttributeIsEnabled(ShaderAttributeIds.TexMtxId))
//{
// stream.AppendFormat("int temp = {0}.z\n", destCoord);
// if (texMtx.Projection == TexMatrixProjection.TexProj_STQ)
// stream.AppendFormat("{0}.xyz = vec3(dot({1}, TexMtx[temp]), dot({1}, TexMtx[temp+1]), dot({1}, TexMtx[temp+2]));\n", destCoord, texGenSource);
// else
// stream.AppendFormat("{0}.xyz = vec3(dot({1}, TexMtx[temp]), dot({1}, TexMtx[temp+1]), 1);\n", destCoord, texGenSource);
//}
//else
{
if (texGen.TexMatrixSource != GXTexMatrix.Identity)
{
if (matrixProj == TexMatrixProjection.TexProj_STQ)
{
stream.AppendFormat("\t\t{0}.xyz = vec3(dot(coord, TexMtx[{1}][0]), dot(coord, TexMtx[{1}][1]), dot(coord, TexMtx[{1}][2]));\n", destCoord, i); //3x4
}
else
{
stream.AppendFormat("\t\t{0}.xyz = vec3(dot(coord, TexMtx[{1}][0]), dot(coord, TexMtxs[{1}][1]), 1);\n", destCoord, i); //2x4
}
}
else
{
stream.AppendFormat("\t\t{0} = coord.xyz;\n", destCoord);
}
}
break;
case GXTexGenType.SRTG:
stream.AppendFormat("\t{0} = vec3({1}.rg, 1);\n", destCoord, texGenSource); break;
case GXTexGenType.Bump0:
case GXTexGenType.Bump1:
case GXTexGenType.Bump2:
case GXTexGenType.Bump3:
case GXTexGenType.Bump4:
case GXTexGenType.Bump5:
case GXTexGenType.Bump6:
case GXTexGenType.Bump7:
// Transform the light dir into tangent space.
// ldir = normalize(Lights[{0}.Position.xyz - RawPosition.xyz);\n {0} = "texInfo.embosslightshift";
// destCoord = TexGen{0} + float3(dot(ldir, _norm0), dot(ldir, RawBinormal), 0.0);\n", {0} = i, {1} = "texInfo.embosssourceshift";
default:
Console.WriteLine("Unsupported TexGenType: {0}", texGen.Type); break;
}
// Dual Tex Transforms
if (mat.PostTexMatrixIndexes.Length > 0)
{
//TexMatrix postTexMtx = mat.PostTexMatrixIndexes
// ToDo: Should this just be... i? lol
Console.WriteLine("PostMtx transforms are... not really anything supported?");
//TexMatrix postTexMtx = mat.PostTexMatrixIndexes[((int)texGen.TexMatrixSource) - 30];
//int postIndex = postTexMtx. mat.PostTexMatrixIndexes[i];
//stream.AppendFormat("float4 P0 = PostMtx[{0}];\n", postIndex);
//stream.AppendFormat("float4 P1 = PostMtx[{0}];\n", postIndex + 1);
//stream.AppendFormat("float4 P2 = PostMtx[{0}];\n", postIndex + 2);
//stream.AppendFormat("{0}.xyz = vec3(dot(P0.xyz, {0}.xyz) + P0.w, dot(P1.xyz, {0}.xyz) + P1.w, dot(P2.xyz, {0}.xyz) + P2.w);\n", destCoord);
}
stream.AppendLine("\t}"); // End of false-scope block.
}
// Append the tail end of our shader file.
stream.AppendLine("}");
stream.AppendLine();
return(stream.ToString());
}