/// @todo fixme: Should use the visual plane heights of subsectors.
static bool middleMaterialCoversOpening(LineSide const &side)
{
if (!side.hasSector()) return false; // Never.
if (!side.hasSections()) return false;
//if (!side.middle().hasMaterial()) return false;
MaterialAnimator *matAnimator = side.middle().materialAnimator();
/* material().as<ClientMaterial>()
.getAnimator(Rend_MapSurfaceMaterialSpec());*/
if (!matAnimator) return false;
// Ensure we have up to date info about the material.
matAnimator->prepare();
// Might the material cover the opening?
if (matAnimator->isOpaque() && !side.middle().blendMode() && side.middle().opacity() >= 1)
{
// Stretched middles always cover the opening.
if (side.isFlagged(SDF_MIDDLE_STRETCH))
return true;
Sector const &frontSec = side.sector();
Sector const *backSec = side.back().sectorPtr();
// Determine the opening between the visual sector planes at this edge.
coord_t openBottom;
if (backSec && backSec->floor().heightSmoothed() > frontSec.floor().heightSmoothed())
{
openBottom = backSec->floor().heightSmoothed();
}
else
{
openBottom = frontSec.floor().heightSmoothed();
}
coord_t openTop;
if (backSec && backSec->ceiling().heightSmoothed() < frontSec.ceiling().heightSmoothed())
{
openTop = backSec->ceiling().heightSmoothed();
}
else
{
openTop = frontSec.ceiling().heightSmoothed();
}
if (matAnimator->dimensions().y >= openTop - openBottom)
{
// Possibly; check the placement.
if(side.leftHEdge()) // possibility of degenerate BSP leaf
{
WallEdge edge(WallSpec::fromMapSide(side, LineSide::Middle),
*side.leftHEdge(), Line::From);
return (edge.isValid() && edge.top().z() > edge.bottom().z()
&& edge.top().z() >= openTop && edge.bottom().z() <= openBottom);
}
}
}
return false;
}
void updateDecorations(Surface &suf, MaterialAnimator &matAnimator,
Vector2f const &materialOrigin, Vector3d const &topLeft,
Vector3d const &bottomRight, Sector *containingSector = nullptr)
{
Vector3d delta = bottomRight - topLeft;
if(de::fequal(delta.length(), 0)) return;
Material &material = matAnimator.material();
int const axis = suf.normal().maxAxis();
Vector2d sufDimensions;
if(axis == 0 || axis == 1)
{
sufDimensions.x = std::sqrt(de::squared(delta.x) + de::squared(delta.y));
sufDimensions.y = delta.z;
}
else
{
sufDimensions.x = std::sqrt(de::squared(delta.x));
sufDimensions.y = delta.y;
}
if(sufDimensions.x < 0) sufDimensions.x = -sufDimensions.x;
if(sufDimensions.y < 0) sufDimensions.y = -sufDimensions.y;
// Generate a number of decorations.
int decorIndex = 0;
material.forAllDecorations([&suf, &matAnimator, &materialOrigin
, &topLeft, &bottomRight, &containingSector
, &delta, &axis, &sufDimensions, &decorIndex]
(MaterialDecoration &decor)
{
Vector2i const &matDimensions = matAnimator.material().dimensions();
MaterialAnimator::Decoration const &decorSS = matAnimator.decoration(decorIndex);
// Skip values must be at least one.
Vector2i skip = Vector2i(decor.patternSkip().x + 1, decor.patternSkip().y + 1)
.max(Vector2i(1, 1));
Vector2f repeat = matDimensions * skip;
if(repeat == Vector2f(0, 0))
return LoopAbort;
Vector3d origin = topLeft + suf.normal() * decorSS.elevation();
float s = de::wrap(decorSS.origin().x - matDimensions.x * decor.patternOffset().x + materialOrigin.x,
0.f, repeat.x);
// Plot decorations.
for(; s < sufDimensions.x; s += repeat.x)
{
// Determine the topmost point for this row.
float t = de::wrap(decorSS.origin().y - matDimensions.y * decor.patternOffset().y + materialOrigin.y,
0.f, repeat.y);
for(; t < sufDimensions.y; t += repeat.y)
{
float const offS = s / sufDimensions.x;
float const offT = t / sufDimensions.y;
Vector3d patternOffset(offS, axis == VZ? offT : offS, axis == VZ? offS : offT);
Vector3d decorOrigin = origin + delta * patternOffset;
ConvexSubspace *subspace = suf.map().bspLeafAt(decorOrigin).subspacePtr();
if(!subspace) continue;
if(!subspace->contains(decorOrigin)) continue;
if(containingSector)
{
// The point must be in the correct sector.
if(containingSector != &subspace->sector())
continue;
}
suf.addDecoration(new LightDecoration(decorSS, decorOrigin));
}
}
decorIndex += 1;
return LoopContinue;
});
}
void Rend_DrawMaskedWall(drawmaskedwallparams_t const &parms)
{
DENG_ASSERT_IN_MAIN_THREAD();
DENG_ASSERT_GL_CONTEXT_ACTIVE();
TextureVariant *tex = nullptr;
if(::renderTextures)
{
MaterialAnimator *matAnimator = parms.animator;
DENG2_ASSERT(matAnimator);
// Ensure we have up to date info about the material.
matAnimator->prepare();
tex = matAnimator->texUnit(MaterialAnimator::TU_LAYER0).texture;
}
// Do we have a dynamic light to blend with?
// This only happens when multitexturing is enabled.
bool withDyn = false;
dint normal = 0, dyn = 1;
if(parms.modTex && ::numTexUnits > 1)
{
if(IS_MUL)
{
normal = 1;
dyn = 0;
}
else
{
normal = 0;
dyn = 1;
}
GL_SelectTexUnits(2);
GL_ModulateTexture(IS_MUL ? 4 : 5);
// The dynamic light.
glActiveTexture(IS_MUL ? GL_TEXTURE0 : GL_TEXTURE1);
/// @todo modTex may be the name of a "managed" texture.
GL_BindTextureUnmanaged(renderTextures ? parms.modTex : 0,
gl::ClampToEdge, gl::ClampToEdge);
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, parms.modColor);
// The actual texture.
glActiveTexture(IS_MUL ? GL_TEXTURE1 : GL_TEXTURE0);
GL_BindTexture(tex);
withDyn = true;
}
else
{
GL_ModulateTexture(1);
glEnable(GL_TEXTURE_2D);
GL_BindTexture(tex);
normal = 0;
}
GL_BlendMode(parms.blendMode);
GLenum normalTarget = normal? GL_TEXTURE1 : GL_TEXTURE0;
GLenum dynTarget = dyn? GL_TEXTURE1 : GL_TEXTURE0;
// Draw one quad. This is obviously not a very efficient way to render
// lots of masked walls, but since 3D models and sprites must be
// rendered interleaved with masked walls, there's not much that can be
// done about this.
if(withDyn)
{
glBegin(GL_QUADS);
glColor4fv(parms.vertices[0].color);
glMultiTexCoord2f(normalTarget, parms.texCoord[0][0], parms.texCoord[1][1]);
glMultiTexCoord2f(dynTarget, parms.modTexCoord[0][0], parms.modTexCoord[1][1]);
glVertex3f(parms.vertices[0].pos[0],
parms.vertices[0].pos[2],
parms.vertices[0].pos[1]);
glColor4fv(parms.vertices[1].color);
glMultiTexCoord2f(normalTarget, parms.texCoord[0][0], parms.texCoord[0][1]);
glMultiTexCoord2f(dynTarget, parms.modTexCoord[0][0], parms.modTexCoord[0][1]);
glVertex3f(parms.vertices[1].pos[0],
parms.vertices[1].pos[2],
parms.vertices[1].pos[1]);
glColor4fv(parms.vertices[3].color);
glMultiTexCoord2f(normalTarget, parms.texCoord[1][0], parms.texCoord[0][1]);
glMultiTexCoord2f(dynTarget, parms.modTexCoord[1][0], parms.modTexCoord[0][1]);
glVertex3f(parms.vertices[3].pos[0],
parms.vertices[3].pos[2],
parms.vertices[3].pos[1]);
glColor4fv(parms.vertices[2].color);
glMultiTexCoord2f(normalTarget, parms.texCoord[1][0], parms.texCoord[1][1]);
glMultiTexCoord2f(dynTarget, parms.modTexCoord[1][0], parms.modTexCoord[1][1]);
glVertex3f(parms.vertices[2].pos[0],
parms.vertices[2].pos[2],
parms.vertices[2].pos[1]);
glEnd();
// Restore normal GL state.
GL_SelectTexUnits(1);
GL_ModulateTexture(1);
}
else
{
glBegin(GL_QUADS);
glColor4fv(parms.vertices[0].color);
glTexCoord2f(parms.texCoord[0][0], parms.texCoord[1][1]);
glVertex3f(parms.vertices[0].pos[0],
parms.vertices[0].pos[2],
parms.vertices[0].pos[1]);
glColor4fv(parms.vertices[1].color);
glTexCoord2f(parms.texCoord[0][0], parms.texCoord[0][1]);
glVertex3f(parms.vertices[1].pos[0],
parms.vertices[1].pos[2],
parms.vertices[1].pos[1]);
glColor4fv(parms.vertices[3].color);
glTexCoord2f(parms.texCoord[1][0], parms.texCoord[0][1]);
glVertex3f(parms.vertices[3].pos[0],
parms.vertices[3].pos[2],
parms.vertices[3].pos[1]);
glColor4fv(parms.vertices[2].color);
glTexCoord2f(parms.texCoord[1][0], parms.texCoord[1][1]);
glVertex3f(parms.vertices[2].pos[0],
parms.vertices[2].pos[2],
parms.vertices[2].pos[1]);
glEnd();
}
glDisable(GL_TEXTURE_2D);
GL_BlendMode(BM_NORMAL);
}
void materialAnimatorDecorationStageChanged(MaterialAnimator &animator)
{
markSurfacesForRedecoration(animator.material());
}