//------------------------------------------------------
void MaterialService::prepareMaterialInstance(MaterialPtr& mat, unsigned int idx, int tag) {
if (tag < 0) // Should not be here if the polygon is sky textured
OPDE_EXCEPT("Non-instanced material instance requested", "MaterialService::prepareMaterialInstance");
mat->setReceiveShadows(true);
StringUtil::StrStreamType lightmapName;
lightmapName << "@lightmap" << tag;
Pass *shadPass = mat->getTechnique(0)->getPass(0);
if (shadPass->getNumTextureUnitStates() <= 1) {
// Lightmap texture is added here
TextureUnitState* tex = shadPass->createTextureUnitState(lightmapName.str());
// Blend
tex->setColourOperation(LBO_MODULATE);
// Use 2nd texture co-ordinate set
tex->setTextureCoordSet(1);
// Clamp
tex->setTextureAddressingMode(TextureUnitState::TAM_CLAMP);
// Switch filtering off to see lmap pixels: TFO_NONE
tex->setTextureFiltering(TFO_BILINEAR);
} else {
// There is a definition of the lightmapping pass already, we only update that definition
TextureUnitState* tex = shadPass->getTextureUnitState(1);
tex->setTextureName(lightmapName.str());
tex->setTextureCoordSet(1);
}
}
//-----------------------------------------------------------------------
MaterialPtr Quake3Shader::createAsMaterial(int lightmapNumber)
{
String matName;
StringUtil::StrStreamType str;
String resourceGroup = ResourceGroupManager::getSingleton().getWorldResourceGroupName();
str << mName << "#" << lightmapNumber;
matName = str.str();
MaterialPtr mat = MaterialManager::getSingleton().create(matName,
resourceGroup);
Ogre::Pass* ogrePass = mat->getTechnique(0)->getPass(0);
LogManager::getSingleton().logMessage("Using Q3 shader " + mName, LML_CRITICAL);
for (int p = 0; p < numPasses; ++p)
{
TextureUnitState* t;
// Create basic texture
if (pass[p].textureName == "$lightmap")
{
StringUtil::StrStreamType str2;
str2 << "@lightmap" << lightmapNumber;
t = ogrePass->createTextureUnitState(str2.str());
}
// Animated texture support
else if (pass[p].animNumFrames > 0)
{
Real sequenceTime = pass[p].animNumFrames / pass[p].animFps;
/* Pre-load textures
We need to know if each one was loaded OK since extensions may change for each
Quake3 can still include alternate extension filenames e.g. jpg instead of tga
Pain in the arse - have to check for each frame as letters<n>.tga for example
is different per frame!
*/
for (unsigned int alt = 0; alt < pass[p].animNumFrames; ++alt)
{
if (!ResourceGroupManager::getSingleton().resourceExists(
resourceGroup, pass[p].frames[alt]))
{
// Try alternate extension
pass[p].frames[alt] = getAlternateName(pass[p].frames[alt]);
if (!ResourceGroupManager::getSingleton().resourceExists(
resourceGroup, pass[p].frames[alt]))
{
// stuffed - no texture
continue;
}
}
}
t = ogrePass->createTextureUnitState("");
t->setAnimatedTextureName(pass[p].frames, pass[p].animNumFrames, sequenceTime);
}
else
{
// Quake3 can still include alternate extension filenames e.g. jpg instead of tga
// Pain in the arse - have to check for failure
if (!ResourceGroupManager::getSingleton().resourceExists(
resourceGroup, pass[p].textureName))
{
// Try alternate extension
pass[p].textureName = getAlternateName(pass[p].textureName);
if (!ResourceGroupManager::getSingleton().resourceExists(
resourceGroup, pass[p].textureName))
{
// stuffed - no texture
continue;
}
}
t = ogrePass->createTextureUnitState(pass[p].textureName);
}
// Blending
if (p == 0)
{
// scene blend
mat->setSceneBlending(pass[p].blendSrc, pass[p].blendDest);
if (mat->isTransparent())
mat->setDepthWriteEnabled(false);
t->setColourOperation(LBO_REPLACE);
// Alpha mode
ogrePass->setAlphaRejectSettings(
pass[p].alphaFunc, pass[p].alphaVal);
}
else
{
if (pass[p].customBlend)
{
// Fallback for now
t->setColourOperation(LBO_MODULATE);
}
else
{
// simple layer blend
t->setColourOperation(pass[p].blend);
}
// Alpha mode, prefer 'most alphary'
CompareFunction currFunc = ogrePass->getAlphaRejectFunction();
unsigned char currVal = ogrePass->getAlphaRejectValue();
if (pass[p].alphaFunc > currFunc ||
(pass[p].alphaFunc == currFunc && pass[p].alphaVal < currVal))
{
ogrePass->setAlphaRejectSettings(
pass[p].alphaFunc, pass[p].alphaVal);
}
}
// Tex coords
if (pass[p].texGen == TEXGEN_BASE)
{
t->setTextureCoordSet(0);
}
else if (pass[p].texGen == TEXGEN_LIGHTMAP)
{
t->setTextureCoordSet(1);
}
else if (pass[p].texGen == TEXGEN_ENVIRONMENT)
{
t->setEnvironmentMap(true, TextureUnitState::ENV_PLANAR);
}
// Tex mod
// Scale
t->setTextureUScale(pass[p].tcModScale[0]);
t->setTextureVScale(pass[p].tcModScale[1]);
// Procedural mods
// Custom - don't use mod if generating environment
// Because I do env a different way it look horrible
if (pass[p].texGen != TEXGEN_ENVIRONMENT)
{
if (pass[p].tcModRotate)
{
t->setRotateAnimation(pass[p].tcModRotate);
}
if (pass[p].tcModScroll[0] || pass[p].tcModScroll[1])
{
if (pass[p].tcModTurbOn)
{
// Turbulent scroll
if (pass[p].tcModScroll[0])
{
t->setTransformAnimation(TextureUnitState::TT_TRANSLATE_U, WFT_SINE,
pass[p].tcModTurb[0], pass[p].tcModTurb[3], pass[p].tcModTurb[2], pass[p].tcModTurb[1]);
}
if (pass[p].tcModScroll[1])
{
t->setTransformAnimation(TextureUnitState::TT_TRANSLATE_V, WFT_SINE,
pass[p].tcModTurb[0], pass[p].tcModTurb[3], pass[p].tcModTurb[2], pass[p].tcModTurb[1]);
}
}
else
{
// Constant scroll
t->setScrollAnimation(pass[p].tcModScroll[0], pass[p].tcModScroll[1]);
}
}
if (pass[p].tcModStretchWave != SHADER_FUNC_NONE)
{
WaveformType wft;
switch(pass[p].tcModStretchWave)
{
case SHADER_FUNC_SIN:
wft = WFT_SINE;
break;
case SHADER_FUNC_TRIANGLE:
wft = WFT_TRIANGLE;
break;
case SHADER_FUNC_SQUARE:
wft = WFT_SQUARE;
break;
case SHADER_FUNC_SAWTOOTH:
wft = WFT_SAWTOOTH;
break;
case SHADER_FUNC_INVERSESAWTOOTH:
wft = WFT_INVERSE_SAWTOOTH;
break;
default:
break;
}
// Create wave-based stretcher
t->setTransformAnimation(TextureUnitState::TT_SCALE_U, wft, pass[p].tcModStretchParams[3],
pass[p].tcModStretchParams[0], pass[p].tcModStretchParams[2], pass[p].tcModStretchParams[1]);
t->setTransformAnimation(TextureUnitState::TT_SCALE_V, wft, pass[p].tcModStretchParams[3],
pass[p].tcModStretchParams[0], pass[p].tcModStretchParams[2], pass[p].tcModStretchParams[1]);
}
}
// Address mode
t->setTextureAddressingMode(pass[p].addressMode);
//assert(!t->isBlank());
}
// Do farbox (create new material)
// Set culling mode and lighting to defaults
mat->setCullingMode(CULL_NONE);
mat->setManualCullingMode(cullMode);
mat->setLightingEnabled(false);
mat->load();
return mat;
}