private static QWaveForm ParseWaveform(QShaderTokenizer tokenizer)
{
return(new QWaveForm
{
Name = tokenizer.GetNext().ToLower(),
Bas = ParserTools.ToFloat(tokenizer.GetNext()),
Amp = ParserTools.ToFloat(tokenizer.GetNext()),
Phase = ParserTools.ToFloat(tokenizer.GetNext()),
Freq = ParserTools.ToFloat(tokenizer.GetNext())
});
}
public static string CreateWaveForm(string name, QWaveForm wf, string timeVar)
{
if (wf == null)
{
return("float " + name + " = 0.0;");
}
if (timeVar.Equals(""))
{
timeVar = "g_time";
}
var funcName = "";
switch (wf.Name)
{
case "sin":
//retorna: float name = base + sin(( pha + t*freq )*2PI)*Amp;
return("float " + name + " = " + ParserTools.ToString(wf.Bas) + " + sin((" +
ParserTools.ToString(wf.Phase) + " + " +
timeVar + " * " + ParserTools.ToString(wf.Freq) + ") * 6.283) * " +
ParserTools.ToString(wf.Amp) + ";");
case "square":
funcName = "square";
break;
case "triangle":
funcName = "triangle";
break;
case "sawtooth":
funcName = "frac";
break;
case "inversesawtooth":
funcName = "1.0 - frac";
break;
default:
return("float " + name + " = 0.0;");
}
//retorna: float varname = base + func(pha + t*freq)*Amp;
return("float " + name + " = " + ParserTools.ToString(wf.Bas) + " + " + funcName + "(" +
ParserTools.ToString(wf.Phase) + " + " +
timeVar + " * " + ParserTools.ToString(wf.Freq) + ") * " + ParserTools.ToString(wf.Amp) + ";");
}
private static QShaderStage ParseStage(QShaderTokenizer tokenizer)
{
var stage = new QShaderStage();
// Parse a Stage
while (!tokenizer.EOF)
{
var token = tokenizer.GetNext();
if (token.Equals("}"))
{
break;
}
switch (token.ToLower())
{
case "clampmap":
stage.Clamp = true;
goto case "map";
case "map":
stage.Map = tokenizer.GetNext(); //.replace()/(\.jpg|\.tga)/, '.png');
break;
case "animmap":
stage.Map = "anim";
stage.AnimFreq = ParserTools.ToFloat(tokenizer.GetNext());
var nextMap = tokenizer.GetNext();
var match = Regex.Match(nextMap, @"(\.jpg|\.tga)");
while (match.Success)
{
stage.AnimMaps.Add(nextMap);
nextMap = tokenizer.GetNext();
match = Regex.Match(nextMap, @"(\.jpg|\.tga)");
}
tokenizer.MovePrev();
break;
case "rgbgen":
stage.RgbGen = tokenizer.GetNext().ToLower();
switch (stage.RgbGen)
{
case "wave":
stage.RgbWaveform = ParseWaveform(tokenizer);
if (stage.RgbWaveform == null)
{
stage.RgbGen = "identity";
}
break;
}
;
break;
case "alphagen":
stage.AlphaGen = tokenizer.GetNext().ToLower();
switch (stage.AlphaGen)
{
case "wave":
stage.AlphaWaveform = ParseWaveform(tokenizer);
if (stage.AlphaWaveform == null)
{
stage.AlphaGen = "1.0";
}
break;
default:
break;
}
break;
case "alphafunc":
stage.AlphaFunc = tokenizer.GetNext().ToUpper();
break;
case "blendfunc":
stage.BlendSrc = tokenizer.GetNext();
stage.HasBlendFunc = true;
if (stage.DepthWriteOverride)
{
stage.DepthWrite = false;
}
switch (stage.BlendSrc)
{
case "add":
stage.BlendSrc = "GL_ONE";
stage.BlendDest = "GL_ONE";
break;
case "blend":
stage.BlendSrc = "GL_SRC_ALPHA";
stage.BlendDest = "GL_ONE_MINUS_SRC_ALPHA";
break;
case "filter":
stage.BlendSrc = "GL_DST_COLOR";
stage.BlendDest = "GL_ZERO";
break;
default:
stage.BlendDest = tokenizer.GetNext();
break;
}
break;
case "depthfunc":
stage.DepthFunc = tokenizer.GetNext().ToLower();
break;
case "depthwrite":
stage.DepthWrite = true;
stage.DepthWriteOverride = true;
break;
case "tcmod":
var tcMod = new QTcMod
{
Type = tokenizer.GetNext().ToLower()
};
switch (tcMod.Type)
{
case "rotate":
tcMod.Angle = Geometry.DegreeToRadian(ParserTools.ToFloat(tokenizer.GetNext()));
break;
case "scale":
tcMod.ScaleX = ParserTools.ToFloat(tokenizer.GetNext());
tcMod.ScaleY = ParserTools.ToFloat(tokenizer.GetNext());
break;
case "scroll":
tcMod.SSpeed = ParserTools.ToFloat(tokenizer.GetNext());
tcMod.TSpeed = ParserTools.ToFloat(tokenizer.GetNext());
break;
case "stretch":
tcMod.WaveForm = ParseWaveform(tokenizer);
if (tcMod.WaveForm == null)
{
tcMod.Type = "";
}
break;
case "turb":
tcMod.Turbulance = new QWaveForm
{
Name = char.IsLetter(tokenizer.GetToken()[0])
? tokenizer.GetNext()
: "",
Bas = ParserTools.ToFloat(tokenizer.GetNext()),
Amp = ParserTools.ToFloat(tokenizer.GetNext()),
Phase = ParserTools.ToFloat(tokenizer.GetNext()),
Freq = ParserTools.ToFloat(tokenizer.GetNext())
};
break;
default:
tcMod.Type = "";
break;
}
if (!tcMod.Type.Equals(""))
{
stage.TcMods.Add(tcMod);
}
break;
case "tcgen":
stage.TcGen = tokenizer.GetNext();
break;
default:
break;
}
}
if (stage.BlendSrc.Equals("GL_ONE") && stage.BlendDest.Equals("GL_ZERO"))
{
stage.HasBlendFunc = false;
stage.DepthWrite = true;
}
return(stage);
}
/// <summary>
/// Parsear shader
/// </summary>
private static QShaderData ParseShader(QShaderTokenizer tokenizer)
{
var qsd = new QShaderData();
qsd.Name = tokenizer.GetNext();
var token = tokenizer.GetNext();
if (!token.Equals("{"))
{
return(null);
}
// Parse a shader
while (!tokenizer.EOF)
{
token = tokenizer.GetNext().ToLower();
if (token.Equals("}"))
{
break;
}
switch (token)
{
case "{":
var stage = ParseStage(tokenizer);
// I really really really don't like doing this, which basically just forces lightmaps to use the 'filter' blendmode
// but if I don't a lot of textures end up looking too bright. I'm sure I'm jsut missing something, and this shouldn't
// be needed.
if (stage.IsLightMap() && stage.HasBlendFunc)
{
stage.BlendSrc = "GL_DST_COLOR";
stage.BlendDest = "GL_ZERO";
}
// I'm having a ton of trouble getting lightingSpecular to work properly,
// so this little hack gets it looking right till I can figure out the problem
if (stage.AlphaGen.Equals("lightingspecular"))
{
stage.BlendSrc = "GL_ONE";
stage.BlendDest = "GL_ZERO";
stage.HasBlendFunc = false;
stage.DepthWrite = true;
}
if (stage.HasBlendFunc)
{
qsd.Blend = true;
}
else
{
qsd.Opaque = true;
}
qsd.Stages.Add(stage);
break;
case "cull":
qsd.Cull = tokenizer.GetNext();
break;
case "deformvertexes":
var deform = new QShaderDeform {
Type = tokenizer.GetNext().ToLower()
};
switch (deform.Type)
{
case "wave":
deform.Spread = 1.0f / ParserTools.ToFloat(tokenizer.GetNext());
deform.WaveForm = ParseWaveform(tokenizer);
break;
case "bulge":
deform.BulgeWidth = ParserTools.ToFloat(tokenizer.GetNext());
deform.BulgeHeight = ParserTools.ToFloat(tokenizer.GetNext());
deform.BulgeSpeed = ParserTools.ToFloat(tokenizer.GetNext());
break;
default:
deform = null;
break;
}
if (deform != null)
{
qsd.VertexDeforms.Add(deform);
}
break;
case "sort":
var sort = tokenizer.GetNext().ToLower();
switch (sort)
{
case "portal":
qsd.Sort = 1;
break;
case "sky":
qsd.Sort = 2;
break;
case "opaque":
qsd.Sort = 3;
break;
case "banner":
qsd.Sort = 6;
break;
case "underwater":
qsd.Sort = 8;
break;
case "additive":
qsd.Sort = 9;
break;
case "nearest":
qsd.Sort = 16;
break;
default:
qsd.Sort = int.Parse(sort);
break;
}
;
break;
case "surfaceparm":
var param = tokenizer.GetNext().ToLower();
switch (param)
{
case "sky":
qsd.Sky = true;
break;
default:
break;
}
break;
default:
break;
}
}
if (qsd.Sort > 0)
{
qsd.Sort = qsd.Opaque ? 3 : 9;
}
return(qsd);
}
private static List <string> BuildVertexShader(QShaderData shader, QShaderStage stage)
{
var VertexLines = new List <string>();
VertexLines.Add("PSInput Out = In;");
VertexLines.Add("float4 defPosition = In.Pos;");
for (var i = 0; i < shader.VertexDeforms.Count; ++i)
{
var deform = shader.VertexDeforms[i];
switch (deform.Type)
{
case "wave":
{
var name = "deform" + i;
var offName = "deformOff" + i;
VertexLines.Add(
"float " + offName + " = (In.Pos.x + In.Pos.y + In.Pos.z) * " +
ParserTools.ToString(deform.Spread) + ";");
/*float phase = deform.WaveForm.Phase;
* //deform.WaveForm.Phase = phase.toFixed(4) + ' + ' + offName; <-----MIRAR ESTA LINEA
* VertexLines.Add(CreateWaveForm(name, deform.WaveForm, "g_time"));
* deform.WaveForm.Phase = phase;*/
//Parche temporal solo funciona con la funcion seno
VertexLines.Add("float " + name + " = " + ParserTools.ToString(deform.WaveForm.Bas) + " + sin((" +
ParserTools.ToString(deform.WaveForm.Phase) + " + " +
"g_time" + " * " + ParserTools.ToString(deform.WaveForm.Freq) + " + " + offName +
") * 6.283) * " + ParserTools.ToString(deform.WaveForm.Amp) + ";");
//FIN parche
VertexLines.Add("defPosition += float4(In.Normal * " + name + ",0);");
}
break;
case "bulge":
{
//float alpha = In.Tex0.x*bulgeWidth + g_time;
//float deform = sin(alpha)*bulgeHeight;
//defPosition += float4(In.Normal * deform0, 0);
var deformi = "deform" + i;
var alphai = "alpha" + i;
VertexLines.Add("float " + alphai + " = In.Tex0.x*" + deform.BulgeWidth + " + g_time*" +
deform.BulgeSpeed + ";");
VertexLines.Add("float " + deformi + " = sin(" + alphai + ")*" + deform.BulgeHeight + ";");
VertexLines.Add("defPosition += float4(In.Normal * " + deformi + ",0);");
}
break;
default:
break;
}
}
VertexLines.Add("float4 worldPosition = mul( defPosition, g_mWorld );");
VertexLines.Add("Out.Color = In.Color;");
if (stage.TcGen.Equals("environment"))
{
VertexLines.Add("float3 viewer = normalize(-worldPosition.xyz);");
VertexLines.Add("float d = dot(In.Normal, viewer);");
VertexLines.Add("float3 reflected = In.Normal*2.0*d - viewer;");
VertexLines.Add("Out.Tex0 = float2(0.5, 0.5) + reflected.xy * 0.5;");
}
else
{
// Standard texturing
VertexLines.Add("Out.Tex0 = In.Tex0;");
}
// tcMods
for (var i = 0; i < stage.TcMods.Count; ++i)
{
var tcMod = stage.TcMods[i];
switch (tcMod.Type)
{
case "rotate":
VertexLines.Add("float r = " + ParserTools.ToString(tcMod.Angle) + " * g_time;");
VertexLines.Add("Out.Tex0 -= float2(0.5, 0.5);");
VertexLines.Add(
"Out.Tex0 = float2(Out.Tex0.x * cos(r) - Out.Tex0.y * sin(r), Out.Tex0.y * cos(r) + Out.Tex0.x * sin(r));");
VertexLines.Add("Out.Tex0 += float2(0.5, 0.5);");
break;
case "scroll":
VertexLines.Add(
"Out.Tex0 += float2(" + ParserTools.ToString(tcMod.SSpeed) + " * g_time, " +
ParserTools.ToString(tcMod.TSpeed) +
" * g_time);");
break;
case "scale":
VertexLines.Add(
"Out.Tex0 *= float2(" + ParserTools.ToString(tcMod.ScaleX) + ", " +
ParserTools.ToString(tcMod.ScaleY) + ");"
);
break;
case "stretch":
VertexLines.Add(CreateWaveForm("stretchWave", tcMod.WaveForm, ""));
VertexLines.Add("stretchWave = 1.0 / stretchWave;");
VertexLines.Add("Out.Tex0 *= stretchWave;");
VertexLines.Add("Out.Tex0 += float2(0.5 - (0.5 * stretchWave), 0.5 - (0.5 * stretchWave));");
break;
case "turb":
var tName = "turbTime" + i;
VertexLines.Add("float " + tName + " = " + ParserTools.ToString(tcMod.Turbulance.Phase) +
" + g_time * " +
ParserTools.ToString(tcMod.Turbulance.Freq) + ";");
VertexLines.Add("Out.Tex0.x += sin( ( ( In.Pos.x + In.Pos.z )* 1.0/128.0 * 0.125 + " + tName +
" ) * 6.283) * " + ParserTools.ToString(tcMod.Turbulance.Amp) + ";");
VertexLines.Add("Out.Tex0.y += sin( ( In.Pos.y * 1.0/128.0 * 0.125 + " + tName +
" ) * 6.283) * " +
ParserTools.ToString(tcMod.Turbulance.Amp) + ";");
break;
default:
break;
}
}
switch (stage.AlphaGen)
{
case "lightingspecular":
VertexLines.Add("Out.Tex1 = In.Tex1;");
break;
default:
break;
}
VertexLines.Add("Out.Pos = mul(worldPosition, g_mViewProj);");
VertexLines.Add("return Out;");
return(VertexLines);
}
