/// <summary>
///
/// </summary>
/// <param name="stream"></param>
/// <param name="shader"></param>
protected void ParseNewShaderPass(StreamReader stream, Quake3Shader shader)
{
string line;
var pass = new ShaderPass();
// Default pass details
pass.animNumFrames = 0;
pass.blend = LayerBlendOperation.Replace;
pass.blendDest = SceneBlendFactor.Zero;
pass.blendSrc = SceneBlendFactor.One;
pass.depthFunc = CompareFunction.LessEqual;
pass.flags = 0;
pass.rgbGenFunc = ShaderGen.Identity;
pass.tcModRotate = 0;
pass.tcModScale[0] = pass.tcModScale[1] = 1.0f;
pass.tcModScroll[0] = pass.tcModScroll[1] = 0.0f;
pass.tcModStretchWave = ShaderWaveType.None;
pass.tcModTransform[0] = pass.tcModTransform[1] = 0.0f;
pass.tcModTurbOn = false;
pass.tcModTurb[0] = pass.tcModTurb[1] = pass.tcModTurb[2] = pass.tcModTurb[3] = 0.0f;
pass.texGen = ShaderTextureGen.Base;
pass.addressMode = TextureAddressing.Wrap;
pass.customBlend = false;
pass.alphaVal = 0;
pass.alphaFunc = CompareFunction.AlwaysPass;
shader.Pass.Add(pass);
while ((line = stream.ReadLine()) != null)
{
line = line.Trim();
// Ignore comments & blanks
if ((line != String.Empty) && !line.StartsWith("//"))
{
if (line == "}")
{
return;
}
else
{
ParseShaderPassAttrib(line, shader, pass);
}
}
}
}
protected void ParseShaderPassAttrib(string line, Quake3Shader shader, ShaderPass pass)
{
string[] attribParams = line.Split(' ', '\t');
attribParams[0] = attribParams[0].ToLower();
LogManager.Instance.Write("Attrib {0}", attribParams[0]);
if((attribParams[0] != "map") && (attribParams[0] != "clampmap") && (attribParams[0] != "animmap"))
{
// lower case all except textures
for (int i = 1; i < attribParams.Length; i++) {
attribParams[i] = attribParams[i].ToLower();
}
}
// MAP
if(attribParams[0] == "map")
{
pass.textureName = attribParams[1];
if (attribParams[1].ToLower() == "$lightmap") {
pass.texGen = ShaderTextureGen.Lightmap;
}
}
// CLAMPMAP
else if(attribParams[0] == "clampmap")
{
pass.textureName = attribParams[1];
if(attribParams[1].ToLower() == "$lightmap")
pass.texGen = ShaderTextureGen.Lightmap;
pass.addressMode = TextureAddressing.Clamp;
}
// ANIMMAP
else if(attribParams[0] == "animmap")
{
pass.animFps = StringConverter.ParseFloat(attribParams[1]);
pass.animNumFrames = attribParams.Length - 2;
for(uint frame = 0; frame < pass.animNumFrames; frame++)
pass.frames[frame] = attribParams[frame + 2];
}
// BLENDFUNC
else if(attribParams[0] == "blendfunc")
{
if((attribParams[1] == "add") || (attribParams[1] == "gl_add"))
{
pass.blend = LayerBlendOperation.Add;
pass.blendDest = SceneBlendFactor.One;
pass.blendSrc = SceneBlendFactor.One;
}
else if((attribParams[1] == "filter") || (attribParams[1] == "gl_filter"))
{
pass.blend = LayerBlendOperation.Modulate;
pass.blendDest = SceneBlendFactor.Zero;
pass.blendSrc = SceneBlendFactor.DestColor;
}
else if((attribParams[1] == "blend") || (attribParams[1] == "gl_blend"))
{
pass.blend = LayerBlendOperation.AlphaBlend;
pass.blendDest = SceneBlendFactor.OneMinusSourceAlpha;
pass.blendSrc = SceneBlendFactor.SourceAlpha;
}
else
{
// Manual blend
pass.blendSrc = ConvertBlendFunc(attribParams[1]);
pass.blendDest = ConvertBlendFunc(attribParams[2]);
// Detect common blends
if((pass.blendSrc == SceneBlendFactor.One) && (pass.blendDest == SceneBlendFactor.Zero))
pass.blend = LayerBlendOperation.Replace;
else if((pass.blendSrc == SceneBlendFactor.One) && (pass.blendDest == SceneBlendFactor.One))
pass.blend = LayerBlendOperation.Add;
else if(((pass.blendSrc == SceneBlendFactor.Zero) && (pass.blendDest == SceneBlendFactor.SourceColor)) ||
((pass.blendSrc == SceneBlendFactor.DestColor) && (pass.blendDest == SceneBlendFactor.Zero)))
pass.blend = LayerBlendOperation.Modulate;
else if((pass.blendSrc == SceneBlendFactor.SourceAlpha) && (pass.blendDest == SceneBlendFactor.OneMinusSourceAlpha))
pass.blend = LayerBlendOperation.AlphaBlend;
else
pass.customBlend = true;
// NB other custom blends might not work due to OGRE trying to use multitexture over multipass
}
}
// RGBGEN
else if(attribParams[0] == "rgbgen")
{
// TODO
}
// ALPHAGEN
else if(attribParams[0] == "alphagen")
{
// TODO
}
// TCGEN
else if(attribParams[0] == "tcgen")
{
if(attribParams[1] == "base")
pass.texGen = ShaderTextureGen.Base;
else if(attribParams[1] == "lightmap")
pass.texGen = ShaderTextureGen.Lightmap;
else if(attribParams[1] == "environment")
pass.texGen = ShaderTextureGen.Environment;
}
// TCMOD
else if(attribParams[0] == "tcmod")
{
if(attribParams[1] == "rotate")
{
pass.tcModRotate = -StringConverter.ParseFloat(attribParams[2]) / 360; // +ve is clockwise degrees in Q3 shader, anticlockwise complete rotations in Ogre
}
else if(attribParams[1] == "scroll")
{
pass.tcModScroll[0] = StringConverter.ParseFloat(attribParams[2]);
pass.tcModScroll[1] = StringConverter.ParseFloat(attribParams[3]);
}
else if(attribParams[1] == "scale")
{
pass.tcModScale[0] = StringConverter.ParseFloat(attribParams[2]);
pass.tcModScale[1] = StringConverter.ParseFloat(attribParams[3]);
}
else if(attribParams[1] == "stretch")
{
if(attribParams[2] == "sin")
pass.tcModStretchWave = ShaderWaveType.Sin;
else if(attribParams[2] == "triangle")
pass.tcModStretchWave = ShaderWaveType.Triangle;
else if(attribParams[2] == "square")
pass.tcModStretchWave = ShaderWaveType.Square;
else if(attribParams[2] == "sawtooth")
pass.tcModStretchWave = ShaderWaveType.SawTooth;
else if(attribParams[2] == "inversesawtooth")
pass.tcModStretchWave = ShaderWaveType.InverseSawtooth;
pass.tcModStretchParams[0] = StringConverter.ParseFloat(attribParams[3]);
pass.tcModStretchParams[1] = StringConverter.ParseFloat(attribParams[4]);
pass.tcModStretchParams[2] = StringConverter.ParseFloat(attribParams[5]);
pass.tcModStretchParams[3] = StringConverter.ParseFloat(attribParams[6]);
}
}
// TURB
else if(attribParams[0] == "turb")
{
pass.tcModTurbOn = true;
pass.tcModTurb[0] = StringConverter.ParseFloat(attribParams[2]);
pass.tcModTurb[1] = StringConverter.ParseFloat(attribParams[3]);
pass.tcModTurb[2] = StringConverter.ParseFloat(attribParams[4]);
pass.tcModTurb[3] = StringConverter.ParseFloat(attribParams[5]);
}
// DEPTHFUNC
else if(attribParams[0] == "depthfunc")
{
// TODO
}
// DEPTHWRITE
else if(attribParams[0] == "depthwrite")
{
// TODO
}
// ALPHAFUNC
else if(attribParams[0] == "alphafunc")
{
if(attribParams[1] == "gt0")
{
pass.alphaVal = 0;
pass.alphaFunc = CompareFunction.Greater;
}
else if(attribParams[1] == "ge128")
{
pass.alphaVal = 128;
pass.alphaFunc = CompareFunction.GreaterEqual;
}
else if(attribParams[1] == "lt128")
{
pass.alphaVal = 128;
pass.alphaFunc = CompareFunction.Less;
}
}
}
/// <summary>
///
/// </summary>
/// <param name="line"></param>
/// <param name="shader"></param>
/// <param name="pass"></param>
protected void ParseShaderPassAttrib(string line, Quake3Shader shader, ShaderPass pass)
{
string[] attribParams = line.Split(' ', '\t');
attribParams[0] = attribParams[0].ToLower();
LogManager.Instance.Write("Attrib {0}", attribParams[0]);
if ((attribParams[0] != "map") && (attribParams[0] != "clampmap") && (attribParams[0] != "animmap"))
{
// lower case all except textures
for (int i = 1; i < attribParams.Length; ++i)
{
attribParams[i] = attribParams[i].ToLower();
}
}
// MAP
if (attribParams[0] == "map")
{
pass.textureName = attribParams[1];
if (attribParams[1].ToLower() == "$lightmap")
{
pass.texGen = ShaderTextureGen.Lightmap;
}
}
// CLAMPMAP
else if (attribParams[0] == "clampmap")
{
pass.textureName = attribParams[1];
if (attribParams[1].ToLower() == "$lightmap")
{
pass.texGen = ShaderTextureGen.Lightmap;
}
pass.addressMode = TextureAddressing.Clamp;
}
// ANIMMAP
else if (attribParams[0] == "animmap")
{
pass.animFps = StringConverter.ParseFloat(attribParams[1]);
pass.animNumFrames = attribParams.Length - 2;
for (uint frame = 0; frame < pass.animNumFrames; ++frame)
{
pass.frames[frame] = attribParams[frame + 2];
}
}
// BLENDFUNC
else if (attribParams[0] == "blendfunc")
{
if ((attribParams[1] == "add") || (attribParams[1] == "gl_add"))
{
pass.blend = LayerBlendOperation.Add;
pass.blendDest = SceneBlendFactor.One;
pass.blendSrc = SceneBlendFactor.One;
}
else if ((attribParams[1] == "filter") || (attribParams[1] == "gl_filter"))
{
pass.blend = LayerBlendOperation.Modulate;
pass.blendDest = SceneBlendFactor.Zero;
pass.blendSrc = SceneBlendFactor.DestColor;
}
else if ((attribParams[1] == "blend") || (attribParams[1] == "gl_blend"))
{
pass.blend = LayerBlendOperation.AlphaBlend;
pass.blendDest = SceneBlendFactor.OneMinusSourceAlpha;
pass.blendSrc = SceneBlendFactor.SourceAlpha;
}
else
{
// Manual blend
pass.blendSrc = ConvertBlendFunc(attribParams[1]);
pass.blendDest = ConvertBlendFunc(attribParams[2]);
// Detect common blends
if ((pass.blendSrc == SceneBlendFactor.One) && (pass.blendDest == SceneBlendFactor.Zero))
{
pass.blend = LayerBlendOperation.Replace;
}
else if ((pass.blendSrc == SceneBlendFactor.One) && (pass.blendDest == SceneBlendFactor.One))
{
pass.blend = LayerBlendOperation.Add;
}
else if (((pass.blendSrc == SceneBlendFactor.Zero) && (pass.blendDest == SceneBlendFactor.SourceColor)) ||
((pass.blendSrc == SceneBlendFactor.DestColor) && (pass.blendDest == SceneBlendFactor.Zero)))
{
pass.blend = LayerBlendOperation.Modulate;
}
else if ((pass.blendSrc == SceneBlendFactor.SourceAlpha) &&
(pass.blendDest == SceneBlendFactor.OneMinusSourceAlpha))
{
pass.blend = LayerBlendOperation.AlphaBlend;
}
else
{
pass.customBlend = true;
}
// NB other custom blends might not work due to OGRE trying to use multitexture over multipass
}
}
// RGBGEN
else if (attribParams[0] == "rgbgen")
{
// TODO
}
// ALPHAGEN
else if (attribParams[0] == "alphagen")
{
// TODO
}
// TCGEN
else if (attribParams[0] == "tcgen")
{
if (attribParams[1] == "base")
{
pass.texGen = ShaderTextureGen.Base;
}
else if (attribParams[1] == "lightmap")
{
pass.texGen = ShaderTextureGen.Lightmap;
}
else if (attribParams[1] == "environment")
{
pass.texGen = ShaderTextureGen.Environment;
}
}
// TCMOD
else if (attribParams[0] == "tcmod")
{
if (attribParams[1] == "rotate")
{
pass.tcModRotate = -StringConverter.ParseFloat(attribParams[2]) / 360;
// +ve is clockwise degrees in Q3 shader, anticlockwise complete rotations in Ogre
}
else if (attribParams[1] == "scroll")
{
pass.tcModScroll[0] = StringConverter.ParseFloat(attribParams[2]);
pass.tcModScroll[1] = StringConverter.ParseFloat(attribParams[3]);
}
else if (attribParams[1] == "scale")
{
pass.tcModScale[0] = StringConverter.ParseFloat(attribParams[2]);
pass.tcModScale[1] = StringConverter.ParseFloat(attribParams[3]);
}
else if (attribParams[1] == "stretch")
{
if (attribParams[2] == "sin")
{
pass.tcModStretchWave = ShaderWaveType.Sin;
}
else if (attribParams[2] == "triangle")
{
pass.tcModStretchWave = ShaderWaveType.Triangle;
}
else if (attribParams[2] == "square")
{
pass.tcModStretchWave = ShaderWaveType.Square;
}
else if (attribParams[2] == "sawtooth")
{
pass.tcModStretchWave = ShaderWaveType.SawTooth;
}
else if (attribParams[2] == "inversesawtooth")
{
pass.tcModStretchWave = ShaderWaveType.InverseSawtooth;
}
pass.tcModStretchParams[0] = StringConverter.ParseFloat(attribParams[3]);
pass.tcModStretchParams[1] = StringConverter.ParseFloat(attribParams[4]);
pass.tcModStretchParams[2] = StringConverter.ParseFloat(attribParams[5]);
pass.tcModStretchParams[3] = StringConverter.ParseFloat(attribParams[6]);
}
}
// TURB
else if (attribParams[0] == "turb")
{
pass.tcModTurbOn = true;
pass.tcModTurb[0] = StringConverter.ParseFloat(attribParams[2]);
pass.tcModTurb[1] = StringConverter.ParseFloat(attribParams[3]);
pass.tcModTurb[2] = StringConverter.ParseFloat(attribParams[4]);
pass.tcModTurb[3] = StringConverter.ParseFloat(attribParams[5]);
}
// DEPTHFUNC
else if (attribParams[0] == "depthfunc")
{
// TODO
}
// DEPTHWRITE
else if (attribParams[0] == "depthwrite")
{
// TODO
}
// ALPHAFUNC
else if (attribParams[0] == "alphafunc")
{
if (attribParams[1] == "gt0")
{
pass.alphaVal = 0;
pass.alphaFunc = CompareFunction.Greater;
}
else if (attribParams[1] == "ge128")
{
pass.alphaVal = 128;
pass.alphaFunc = CompareFunction.GreaterEqual;
}
else if (attribParams[1] == "lt128")
{
pass.alphaVal = 128;
pass.alphaFunc = CompareFunction.Less;
}
}
}
protected void ParseNewShaderPass(StreamReader stream, Quake3Shader shader)
{
string line;
ShaderPass pass = new ShaderPass();
// Default pass details
pass.animNumFrames = 0;
pass.blend = LayerBlendOperation.Replace;
pass.blendDest = SceneBlendFactor.Zero;
pass.depthFunc = CompareFunction.LessEqual;
pass.flags = 0;
pass.rgbGenFunc = ShaderGen.Identity;
pass.tcModRotate = 0;
pass.tcModScale[0] = pass.tcModScale[1] = 1.0f;
pass.tcModScroll[0] = pass.tcModScroll[1] = 0.0f;
pass.tcModStretchWave = ShaderWaveType.None;
pass.tcModTransform[0] = pass.tcModTransform[1] = 0.0f;
pass.tcModTurbOn = false;
pass.tcModTurb[0] = pass.tcModTurb[1] = pass.tcModTurb[2] = pass.tcModTurb[3] = 0.0f;
pass.texGen = ShaderTextureGen.Base;
pass.addressMode = TextureAddressing.Wrap;
pass.customBlend = false;
pass.alphaVal = 0;
pass.alphaFunc = CompareFunction.AlwaysPass;
shader.Pass.Add(pass);
while((line = stream.ReadLine()) != null)
{
line = line.Trim();
// Ignore comments & blanks
if((line != String.Empty) && !line.StartsWith("//"))
{
if(line == "}")
return;
else
ParseShaderPassAttrib(line, shader, pass);
}
}
}
