void DiMaterial::RecompileShader( DiShaderType type, const DiPair<DiString,DiString>& marco )
{
DiShaderProgram* shader = nullptr;
if (type == SHADER_VERTEX)
shader = mVertexShader;
else if (type == SHADER_PIXEL)
shader = mPixelShader;
if (shader)
{
DiShaderInstance* si = shader->GetShader();
si->mCompileDesc.AddMarco(marco.first,marco.second);
si->Compile(shader->GetCode());
mShaderParameter->LoadParameters();
}
}
void DiFoliageLayer::UpdateMaterial()
{
if (!mNeedUpdateMaterial)
return;
mNeedUpdateMaterial = false;
DI_ASSERT(mMaterial);
DiCompileDesc desc;
desc.entryName = "vs_main";
desc.profile = DiShaderProgram::GetDefaultVsProfile();
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_FADE_ALPHA" ,"0"));
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_FADE_GROW" ,"1"));
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_FADE_ALPHA_GROW","2"));
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_RENDER_QUAD" ,"0"));
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_RENDER_SPRITE" ,"1"));
DiString fadeMarco;
// if (m_pkDesc->m_eFadeTechnique == FADETECH_ALPHA)
// {
fadeMarco = "0";
// }
// else if (m_pkDesc->m_eFadeTechnique == FADETECH_GROW)
// {
// fadeMarco = "1";
// }
// else if (m_pkDesc->m_eFadeTechnique == FADETECH_ALPHAGROW)
// {
// fadeMarco = "2";
// }
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_LIGHTING" ,mDesc->mLighting? "1":"0"));
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_ANIMATE" ,mDesc->mAnimate? "1":"0"));
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_BLEND" ,/*m_pkDesc->m_bBlend? "1":"0"*/"1"));
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_FADE_TECH" ,fadeMarco));
desc.marcos.push_back(DiPair<DiString,DiString>("_GRASS_RENDER_TECH",mDesc->mRenderTechnique == GRASSTECH_SPRITE ? "1" : "0"));
DiShaderParameter* msp = mMaterial->GetShaderParameter();
DiShaderProgram* vp = mMaterial->GetVertexShader();
if (vp)
{
DiShaderInstance* si = vp->GetShader();
if (si)
{
si->mCompileDesc = desc;
si->Compile(vp->GetCode());
msp->LoadVariables(vp,SHADER_VERTEX);
}
}
// д²ÎÊý
// if (m_pkDesc->m_bBlend)
{
msp->WriteFloat("fadeRange", 100);
}
//if (m_pkDesc->m_eFadeTechnique == FADETECH_GROW ||
// m_pkDesc->m_eFadeTechnique == FADETECH_ALPHAGROW)
{
//msp->WriteFloat("grassHeight", m_pkDesc->m_fMaxHeight * 1.05f);
}
msp->WriteTexture2D("diffuseTexture",mDesc->DemiureName);
}