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support multipass env mapping for systems without multitexturing

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This commit is contained in:
Glenn Maynard
2005-01-04 05:38:44 +00:00
parent a1be0fdb33
commit 32bb778e22
1 changed files with 38 additions and 13 deletions
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stepmania/src/Model.cpp
+30 -5
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@@ -344,19 +344,44 @@ void Model::DrawPrimitives()
DISPLAY->TextureTranslate( fScrollX, fScrollY, 0 ); DISPLAY->TextureTranslate( fScrollX, fScrollY, 0 );
} }
// render the first pass with texture 1 /* There's some common code that could be folded out here, but it seems
* clearer to keep it separate. */
if( DISPLAY->GetNumTextureUnits() < 2 )
{
// render the diffuse texture
DISPLAY->SetTexture( 0, mat.diffuse.GetCurrentTexture() );
DISPLAY->SetSphereEnironmentMapping( mat.diffuse.m_bSphereMapped );
DrawMesh( i );
// render the additive texture
if( mat.alpha.GetCurrentTexture() )
{
DISPLAY->SetTexture( 0, mat.alpha.GetCurrentTexture() );
DISPLAY->SetSphereEnironmentMapping( mat.alpha.m_bSphereMapped );
// UGLY: This overrides the Actor's BlendMode
DISPLAY->SetBlendMode( BLEND_ADD );
DISPLAY->SetTextureFiltering( true );
DrawMesh( i );
}
}
else
{
// render the diffuse texture with texture unit 1
DISPLAY->SetTexture( 0, mat.diffuse.GetCurrentTexture() ); DISPLAY->SetTexture( 0, mat.diffuse.GetCurrentTexture() );
DISPLAY->SetSphereEnironmentMapping( mat.diffuse.m_bSphereMapped ); DISPLAY->SetSphereEnironmentMapping( mat.diffuse.m_bSphereMapped );
// render the second pass with texture 2 // render the additive texture with texture unit 2
if( mat.alpha.GetCurrentTexture() ) if( mat.alpha.GetCurrentTexture() )
{ {
DISPLAY->SetTexture( 1, mat.alpha.GetCurrentTexture() ); DISPLAY->SetTexture( 1, mat.alpha.GetCurrentTexture() );
DISPLAY->SetSphereEnironmentMapping( mat.alpha.m_bSphereMapped ); DISPLAY->SetSphereEnironmentMapping( mat.alpha.m_bSphereMapped );
// UGLY: This overrides the Actor's BlendMode
DISPLAY->SetTextureModeAdd(); DISPLAY->SetTextureModeAdd();
DISPLAY->SetTextureFiltering( true ); DISPLAY->SetTextureFiltering( true );
} }
/* go */
DrawMesh( i );
}
} }
else else
{ {
@@ -368,11 +393,11 @@ void Model::DrawPrimitives()
DISPLAY->SetMaterial( emissive, ambient, diffuse, specular, shininess ); DISPLAY->SetMaterial( emissive, ambient, diffuse, specular, shininess );
DISPLAY->ClearAllTextures(); DISPLAY->ClearAllTextures();
DISPLAY->SetSphereEnironmentMapping( false ); DISPLAY->SetSphereEnironmentMapping( false );
DrawMesh( i );
} }
DrawMesh( i );
DISPLAY->SetSphereEnironmentMapping( false ); DISPLAY->SetSphereEnironmentMapping( false );
DISPLAY->SetBlendMode( BLEND_NORMAL );
DISPLAY->TexturePopMatrix(); DISPLAY->TexturePopMatrix();
} }
} }