From 6513fae6690dca92475bf40386b5fb8e53f0408a Mon Sep 17 00:00:00 2001
From: ansgar <ansgar@5a81b35b-ba03-0410-adc8-b2c5c5119f08>
Date: Fri, 30 Apr 2010 01:39:18 +0000
Subject: [PATCH] reimplemented transparency; fixed shadow mapping; worked on
multi-pass rendering; some minor code cleanup
git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/branches/new_gfx@2136 5a81b35b-ba03-0410-adc8-b2c5c5119f08
---
modules/gfx/src/CMakeLists.txt | 4 +-
modules/gfx/src/entity.cc | 94 +++++++------------
modules/gfx/src/entity.hh | 8 ++
modules/gfx/src/gfx_object.cc | 63 ++++++++++---
modules/gfx/src/gfx_object.hh | 7 +-
modules/gfx/src/gfx_object_base.hh | 3 +
modules/gfx/src/impl/cpk_renderer.cc | 2 +-
modules/gfx/src/impl/cpk_renderer.hh | 2 +-
modules/gfx/src/impl/debug_renderer.cc | 2 -
modules/gfx/src/impl/debug_renderer.hh | 1 -
modules/gfx/src/impl/entity_renderer.hh | 2 +-
modules/gfx/src/impl/line_trace_renderer.cc | 4 -
modules/gfx/src/impl/line_trace_renderer.hh | 1 -
modules/gfx/src/map_iso.cc | 30 +++---
modules/gfx/src/map_slab.cc | 9 +-
modules/gfx/src/prim_list.cc | 6 +-
modules/gfx/src/primitives.cc | 2 +-
modules/gfx/src/render_pass.hh | 7 +-
modules/gfx/src/scene.cc | 17 +++-
modules/gfx/src/scene.hh | 2 +-
modules/gfx/src/shader.cc | 8 +-
...raglight_lfs_fs.glsl => fraglight_fs.glsl} | 67 +++++++------
...raglight_lfs_vs.glsl => fraglight_vs.glsl} | 11 +++
modules/gfx/src/surface.cc | 12 ++-
modules/gfx/src/vertex_array.cc | 11 +++
modules/gfx/src/vertex_array.hh | 2 +
26 files changed, 220 insertions(+), 157 deletions(-)
rename modules/gfx/src/shader/{fraglight_lfs_fs.glsl => fraglight_fs.glsl} (68%)
rename modules/gfx/src/shader/{fraglight_lfs_vs.glsl => fraglight_vs.glsl} (68%)
diff --git a/modules/gfx/src/CMakeLists.txt b/modules/gfx/src/CMakeLists.txt
index 9f3d471ff..e21c2cbec 100644
--- a/modules/gfx/src/CMakeLists.txt
+++ b/modules/gfx/src/CMakeLists.txt
@@ -229,8 +229,8 @@ if (USE_SHADER)
shader/fraglight_lf_fs.glsl
shader/basic_lfs_vs.glsl
shader/basic_lfs_fs.glsl
- shader/fraglight_lfs_vs.glsl
- shader/fraglight_lfs_fs.glsl
+ shader/fraglight_vs.glsl
+ shader/fraglight_fs.glsl
shader/basic_hf_vs.glsl
shader/selfx_vs.glsl
shader/selfx_fs.glsl
diff --git a/modules/gfx/src/entity.cc b/modules/gfx/src/entity.cc
index 25d63fd4a..b9956105f 100644
--- a/modules/gfx/src/entity.cc
+++ b/modules/gfx/src/entity.cc
@@ -67,7 +67,11 @@ Entity::Entity(const String& name,
const Query& q):
GfxObj(name),
qv_(q, h),
- bbox_(geom::Vec3(), geom::Vec3())
+ bbox_(geom::Vec3(), geom::Vec3()),
+ sel_(),
+ sel_update_(),
+ trace_(),
+ opacity_(1.0)
{
init(RenderMode::SIMPLE);
}
@@ -78,7 +82,11 @@ Entity::Entity(const String& name,
const Query& q):
GfxObj(name),
qv_(q, h),
- bbox_(geom::Vec3(), geom::Vec3())
+ bbox_(geom::Vec3(), geom::Vec3()),
+ sel_(),
+ sel_update_(),
+ trace_(),
+ opacity_(1.0)
{
init(m);
}
@@ -87,7 +95,11 @@ Entity::Entity(const String& name,
const EntityView& v):
GfxObj(name),
qv_(v),
- bbox_(geom::Vec3(), geom::Vec3())
+ bbox_(geom::Vec3(), geom::Vec3()),
+ sel_(),
+ sel_update_(),
+ trace_(),
+ opacity_(1.0)
{
init(RenderMode::SIMPLE);
}
@@ -97,7 +109,11 @@ Entity::Entity(const String& name,
const EntityView& v):
GfxObj(name),
qv_(v),
- bbox_(geom::Vec3(), geom::Vec3())
+ bbox_(geom::Vec3(), geom::Vec3()),
+ sel_(),
+ sel_update_(),
+ trace_(),
+ opacity_(1.0)
{
init(m);
}
@@ -312,6 +328,7 @@ bool Entity::UpdateIfNeeded() const
renderer->PrepareRendering();
updated=true;
}
+ renderer->VA().SetOpacity(opacity_);
}
if (updated) {
this->CacheBoundingBox();
@@ -340,65 +357,19 @@ void Entity::CustomRenderGL(RenderPass pass)
for (RendererMap::iterator i=renderer_.begin(),
e=renderer_.end(); i!=e; ++i) {
impl::EntityRenderer* r=i->second;
- if(r->IsEnabled()){
- if(pass==STANDARD_RENDER_PASS || pass==OPAQUE_RENDER_PASS) {
+ if(r->IsEnabled()) {
+ if(pass==STANDARD_RENDER_PASS) {
r->Render(pass);
- if(pass==STANDARD_RENDER_PASS && outline_flag_) {
+ if(outline_flag_) {
r->VA().SetOutlineMode(outline_mode_);
- r->Render(pass);
+ r->Render(STANDARD_RENDER_PASS);
r->VA().SetOutlineMode(0);
}
- } else if(pass==GLOW_RENDER_PASS && r->HasSelection()) {
- r->Render(pass);
+ } else if(pass==GLOW_RENDER_PASS) {
+ r->Render(GLOW_RENDER_PASS);
}
}
}
- geom::AlignedCuboid bbox=this->GetBoundingBox();
- geom::Vec3 mmin=bbox.GetMin();
- geom::Vec3 mmax=bbox.GetMax();
-#if 0
- glDisable(GL_LIGHTING);
- glLineWidth(1.0);
- glColor3f(1.0, 1.0, 1.0);
- glBegin(GL_LINES);
- glVertex3(geom::Vec3(mmin[0], mmin[1], mmin[2]));
- glVertex3(geom::Vec3(mmin[0], mmax[1], mmin[2]));
-
- glVertex3(geom::Vec3(mmin[0], mmax[1], mmin[2]));
- glVertex3(geom::Vec3(mmin[0], mmax[1], mmax[2]));
-
- glVertex3(geom::Vec3(mmin[0], mmax[1], mmax[2]));
- glVertex3(geom::Vec3(mmin[0], mmin[1], mmax[2]));
-
- glVertex3(geom::Vec3(mmin[0], mmin[1], mmax[2]));
- glVertex3(geom::Vec3(mmin[0], mmin[1], mmin[2]));
-
-
- glVertex3(geom::Vec3(mmax[0], mmin[1], mmin[2]));
- glVertex3(geom::Vec3(mmax[0], mmax[1], mmin[2]));
-
- glVertex3(geom::Vec3(mmax[0], mmax[1], mmin[2]));
- glVertex3(geom::Vec3(mmax[0], mmax[1], mmax[2]));
-
- glVertex3(geom::Vec3(mmax[0], mmax[1], mmax[2]));
- glVertex3(geom::Vec3(mmax[0], mmin[1], mmax[2]));
-
- glVertex3(geom::Vec3(mmax[0], mmin[1], mmax[2]));
- glVertex3(geom::Vec3(mmax[0], mmin[1], mmin[2]));
-
- glVertex3(geom::Vec3(mmin[0], mmin[1], mmin[2]));
- glVertex3(geom::Vec3(mmax[0], mmin[1], mmin[2]));
-
- glVertex3(geom::Vec3(mmin[0], mmax[1], mmin[2]));
- glVertex3(geom::Vec3(mmax[0], mmax[1], mmin[2]));
-
- glVertex3(geom::Vec3(mmin[0], mmax[1], mmax[2]));
- glVertex3(geom::Vec3(mmax[0], mmax[1], mmax[2]));
-
- glVertex3(geom::Vec3(mmin[0], mmin[1], mmax[2]));
- glVertex3(geom::Vec3(mmax[0], mmin[1], mmax[2]));
- glEnd();
-#endif
}
void Entity::CustomRenderPov(PovState& pov)
@@ -582,6 +553,13 @@ void Entity::OptionsChanged(RenderMode::Type render_mode)
Scene::Instance().ObjectChanged(this->GetName());
}
+void Entity::SetOpacity(float f)
+{
+ opacity_=f;
+ this->UpdateIfNeeded();
+ Scene::Instance().RequestRedraw();
+}
+
void Entity::OnRenderModeChange()
{
for (RendererMap::iterator i=renderer_.begin(),
@@ -667,7 +645,7 @@ void Entity::SetRenderMode(RenderMode::Type mode,
}
renderer->UpdateViews();
}
- this->ReapplyColorOps();
+ this->ReapplyColorOps(); // done in rebuild?
this->FlagRebuild();
Scene::Instance().RenderModeChanged(GetName());
}
@@ -691,7 +669,7 @@ void Entity::SetVisible(const mol::EntityView& view, bool visible){
renderer->SetVisible(view, visible);
renderer->UpdateViews();
}
- this->ReapplyColorOps();
+ this->ReapplyColorOps(); // done in rebuild?
this->FlagRebuild();
}
diff --git a/modules/gfx/src/entity.hh b/modules/gfx/src/entity.hh
index c0b3c3a9f..10930da73 100644
--- a/modules/gfx/src/entity.hh
+++ b/modules/gfx/src/entity.hh
@@ -140,7 +140,13 @@ public:
virtual void OptionsChanged(RenderMode::Type mode);
+ virtual void SetOpacity(float f);
+ virtual float GetOpacity() const {return opacity_;}
+
/// \brief rebuild graphical object (see ctor comments)
+ /*
+ the naming here is misleading - this method WON'T be called upon FlagRebuild
+ */
void Rebuild();
/// \brief only grab updated positions, dont rebuild the whole thing
@@ -291,6 +297,8 @@ private:
typedef boost::ptr_map<RenderMode::Type, impl::EntityRenderer> RendererMap;
mutable RendererMap renderer_;
+
+ float opacity_;
};
diff --git a/modules/gfx/src/gfx_object.cc b/modules/gfx/src/gfx_object.cc
index 4231be8dc..e2aadfae3 100644
--- a/modules/gfx/src/gfx_object.cc
+++ b/modules/gfx/src/gfx_object.cc
@@ -120,6 +120,9 @@ void GfxObj::RenderGL(RenderPass pass)
PreRenderGL(rebuild_);
rebuild_=false;
refresh_=false;
+ // there really needs to be a central place
+ // where the va attributes are re-applied
+ va_.SetOpacity(opacity_);
}
}
if(IsVisible()) {
@@ -136,15 +139,30 @@ void GfxObj::RenderGL(RenderPass pass)
}
LOGN_TRACE("calling custom render gl pass " << pass);
- CustomRenderGL(pass);
-
- if(pass==0 && outline_flag_>0) {
- va_.SetOutlineMode(outline_mode_);
- CustomRenderGL(pass);
- va_.SetOutlineMode(0);
- }
-
- if(pass==1) {
+ /*
+ only STANDARD_RENDER_PASS and GLOW_RENDER_PASS are
+ passed down to the custom rendering routines
+ */
+
+ if(pass==DEPTH_RENDER_PASS) {
+ render_depth_only();
+ } else if(pass==TRANSPARENT_RENDER_PASS) {
+ if(GetOpacity()<1.0) {
+ render_depth_only();
+ CustomRenderGL(STANDARD_RENDER_PASS);
+ }
+ } else if(pass==STANDARD_RENDER_PASS) {
+ if(GetOpacity()>=1.0) {
+ CustomRenderGL(STANDARD_RENDER_PASS);
+ }
+ if(outline_flag_) {
+ va_.SetOutlineMode(outline_mode_);
+ CustomRenderGL(pass);
+ va_.SetOutlineMode(0);
+ }
+ } else if(pass==GLOW_RENDER_PASS) {
+ CustomRenderGL(GLOW_RENDER_PASS);
+ } else if(pass==OVERLAY_RENDER_PASS) {
LOGN_TRACE("drawing labels");
render_labels();
}
@@ -320,7 +338,9 @@ void GfxObj::SetAmbientOcclusionWeight(float w)
void GfxObj::SetOpacity(float o)
{
opacity_=o;
- FlagRebuild();
+ va_.SetOpacity(opacity_);
+ FlagRefresh();
+ Scene::Instance().RequestRedraw();
}
void GfxObj::ColorBy(const mol::EntityView& ev,
@@ -578,7 +598,7 @@ void GfxObj::ReapplyColorOps(){
GfxObjP o=dyn_cast<GfxObj>(shared_from_this());
for(boost::ptr_vector<gfx::ColorOp>::iterator it=c_ops_.begin();
it!=c_ops_.end();++it) {
- it->ApplyTo(o);
+ it->ApplyTo(o);
}
}
}
@@ -596,4 +616,25 @@ void GfxObj::Debug(unsigned int flags)
va_.DrawNormals(flags & 0x1);
}
+void GfxObj::render_depth_only()
+{
+ glPushAttrib(GL_ALL_ATTRIB_BITS);
+ glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+ glDisable(GL_LIGHTING);
+ glDisable(GL_COLOR_MATERIAL);
+ glDisable(GL_BLEND);
+ glDisable(GL_FOG);
+ glShadeModel(GL_FLAT);
+ glDisable(GL_LINE_SMOOTH);
+ glDisable(GL_POINT_SMOOTH);
+ glDisable(GL_POLYGON_SMOOTH);
+ glDisable(GL_DITHER);
+ glDisable(GL_NORMALIZE);
+ glEnable(GL_DEPTH_TEST);
+ CustomRenderGL(STANDARD_RENDER_PASS);
+ glColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE);
+ glPopAttrib();
+}
+
+
}} // ns
diff --git a/modules/gfx/src/gfx_object.hh b/modules/gfx/src/gfx_object.hh
index 0b9322542..878601c80 100644
--- a/modules/gfx/src/gfx_object.hh
+++ b/modules/gfx/src/gfx_object.hh
@@ -82,6 +82,7 @@ public:
virtual void SetAmbientLocalWeight(float w);
virtual void SetAmbientOcclusionWeight(float w);
virtual void SetOpacity(float f);
+ virtual float GetOpacity() const {return opacity_;}
virtual void ColorBy(const mol::EntityView& ev,
const String& prop,
const Gradient& g, float minv, float maxv);
@@ -108,6 +109,10 @@ public:
const mol::Transform& tf) const;
// implemented in derived classes for the actual GL rendering
+ /*
+ note: only STANDARD_RENDER_PASS and GLOW_RENDER_PASS need to
+ be implemented, the rest is taken care of by GfxObj::RenderGL
+ */
virtual void CustomRenderGL(RenderPass pass);
// implemented in derived classes for the actual POVray export
@@ -158,7 +163,6 @@ public:
bool GetAALines() const {return aalines_flag_;}
float GetLineWidth() const {return line_width_;}
float GetLineHalo() const {return line_halo_;}
- float GetOpacity() const {return opacity_;}
void SetNormalSmoothFactor(float smoothf);
float GetNormalSmoothFactor() const;
@@ -190,6 +194,7 @@ public:
void CleanColorOps();
void ReapplyColorOps();
void render_labels() const;
+ void render_depth_only();
IndexedVertexArray va_;
RenderMode::Type render_mode_;
diff --git a/modules/gfx/src/gfx_object_base.hh b/modules/gfx/src/gfx_object_base.hh
index bcbf4613f..c18022b47 100644
--- a/modules/gfx/src/gfx_object_base.hh
+++ b/modules/gfx/src/gfx_object_base.hh
@@ -112,6 +112,9 @@ class DLLEXPORT_OST_GFX GfxObjBase: public GfxNode
/// \brief set opacity (1 = no transparency)
virtual void SetOpacity(float f) = 0;
+ /// \brief returns a value smaller than 1.0 if transparency is used in this object
+ virtual float GetOpacity() const = 0;
+
/// \brief color each component based on the gradient-mapped property of
/// the given entity
virtual void ColorBy(const mol::EntityView& ev,
diff --git a/modules/gfx/src/impl/cpk_renderer.cc b/modules/gfx/src/impl/cpk_renderer.cc
index fc3b2b916..0dabd7360 100644
--- a/modules/gfx/src/impl/cpk_renderer.cc
+++ b/modules/gfx/src/impl/cpk_renderer.cc
@@ -74,7 +74,7 @@ void CPKRenderer::Render(RenderPass pass)
{
if(options_!=NULL){
#if OST_SHADER_SUPPORT_ENABLED
- if(options_->GetCPKMode()==1 || options_->GetCPKMode()==2) {
+ if(pass==STANDARD_RENDER_PASS && (options_->GetCPKMode()==1 || options_->GetCPKMode()==2)) {
this->RenderCPK2();
return;
}
diff --git a/modules/gfx/src/impl/cpk_renderer.hh b/modules/gfx/src/impl/cpk_renderer.hh
index 81372f2d0..e5d0503f0 100644
--- a/modules/gfx/src/impl/cpk_renderer.hh
+++ b/modules/gfx/src/impl/cpk_renderer.hh
@@ -37,7 +37,7 @@ public:
virtual void RenderPov(PovState& pov, const std::string& name);
- virtual void Render(RenderPass pass=STANDARD_RENDER_PASS);
+ virtual void Render(RenderPass pass);
virtual bool CanSetOptions(RenderOptionsPtr& render_options);
virtual void SetOptions(RenderOptionsPtr& render_options);
diff --git a/modules/gfx/src/impl/debug_renderer.cc b/modules/gfx/src/impl/debug_renderer.cc
index 574dad2d3..bd8f883f0 100644
--- a/modules/gfx/src/impl/debug_renderer.cc
+++ b/modules/gfx/src/impl/debug_renderer.cc
@@ -104,8 +104,6 @@ void DebugRenderer::PrepareRendering()
#endif
}
-void DebugRenderer::Render(){}
-
bool DebugRenderer::CanSetOptions(RenderOptionsPtr& render_options){
return render_options.get()->GetRenderMode()==RenderMode::SLINE;
}
diff --git a/modules/gfx/src/impl/debug_renderer.hh b/modules/gfx/src/impl/debug_renderer.hh
index 3a2b6e79a..499a5d18c 100644
--- a/modules/gfx/src/impl/debug_renderer.hh
+++ b/modules/gfx/src/impl/debug_renderer.hh
@@ -33,7 +33,6 @@ public:
DebugRenderer(BackboneTrace* trace);
virtual void PrepareRendering();
- virtual void Render();
virtual bool CanSetOptions(RenderOptionsPtr& render_options);
virtual void SetOptions(RenderOptionsPtr& render_options);
diff --git a/modules/gfx/src/impl/entity_renderer.hh b/modules/gfx/src/impl/entity_renderer.hh
index b80bd9ecd..c43bd5d33 100644
--- a/modules/gfx/src/impl/entity_renderer.hh
+++ b/modules/gfx/src/impl/entity_renderer.hh
@@ -118,7 +118,7 @@ public:
///
/// The rendering buffers and vertex arrays should be prepared in
/// PrepareRendering()
- virtual void Render(RenderPass pass=STANDARD_RENDER_PASS);
+ virtual void Render(RenderPass pass);
///\brief povray rendering call
virtual void RenderPov(PovState& pov, const std::string& name);
diff --git a/modules/gfx/src/impl/line_trace_renderer.cc b/modules/gfx/src/impl/line_trace_renderer.cc
index 45e2b63fa..efd916706 100644
--- a/modules/gfx/src/impl/line_trace_renderer.cc
+++ b/modules/gfx/src/impl/line_trace_renderer.cc
@@ -86,10 +86,6 @@ void LineTraceRenderer::PrepareRendering(const BackboneTrace& trace_subset,
state_=0;
}
-void LineTraceRenderer::Render()
-{
-}
-
bool LineTraceRenderer::CanSetOptions(RenderOptionsPtr& render_options)
{
return render_options.get()->GetRenderMode()==RenderMode::LINE_TRACE;
diff --git a/modules/gfx/src/impl/line_trace_renderer.hh b/modules/gfx/src/impl/line_trace_renderer.hh
index fc2a2ad87..39f1e0e10 100644
--- a/modules/gfx/src/impl/line_trace_renderer.hh
+++ b/modules/gfx/src/impl/line_trace_renderer.hh
@@ -46,7 +46,6 @@ public:
virtual void PrepareRendering();
virtual void PrepareRendering(const BackboneTrace& trace_subset,
IndexedVertexArray& va, bool is_sel);
- virtual void Render();
virtual bool CanSetOptions(RenderOptionsPtr& render_options);
virtual void SetOptions(RenderOptionsPtr& render_options);
diff --git a/modules/gfx/src/map_iso.cc b/modules/gfx/src/map_iso.cc
index 20736f6c9..462237c79 100644
--- a/modules/gfx/src/map_iso.cc
+++ b/modules/gfx/src/map_iso.cc
@@ -228,30 +228,22 @@ private:
void MapIso::CustomRenderGL(RenderPass pass)
{
- switch (pass) {
- case OPAQUE_RENDER_PASS:
- glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
- va_.RenderGL();
- glColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE);
- break;
- case STANDARD_RENDER_PASS:
- va_.RenderGL();
- if (debug_octree_) {
- OctreeDebugger d(level_, mh_.IndexToCoord(img::Point(1,1,1))-
- mh_.IndexToCoord(img::Point(0,0,0)));
- glPushAttrib(GL_ENABLE_BIT);
- glDisable(GL_LIGHTING);
- octree_.VisitDF(d);
- glPopAttrib();
- }
- break;
- case GLOW_RENDER_PASS:
- return;
+ if(pass==STANDARD_RENDER_PASS) {
+ va_.RenderGL();
+ if (debug_octree_) {
+ OctreeDebugger d(level_, mh_.IndexToCoord(img::Point(1,1,1))-
+ mh_.IndexToCoord(img::Point(0,0,0)));
+ glPushAttrib(GL_ENABLE_BIT);
+ glDisable(GL_LIGHTING);
+ octree_.VisitDF(d);
+ glPopAttrib();
+ }
}
}
void MapIso::CustomRenderPov(PovState& pov)
{
+ // TODO: isocontour pov export
}
void MapIso::OnInput(const InputEvent& e)
diff --git a/modules/gfx/src/map_slab.cc b/modules/gfx/src/map_slab.cc
index 32da5912c..3656eec4d 100644
--- a/modules/gfx/src/map_slab.cc
+++ b/modules/gfx/src/map_slab.cc
@@ -108,16 +108,9 @@ void MapSlab::CustomRenderGL(RenderPass pass)
{
if(rebuild_) rebuild_tex();
- if(GetOpacity()<1.0) {
- if(pass!=1) return;
- glColorMask(GL_FALSE,GL_FALSE,GL_FALSE,GL_FALSE);
+ if(pass==STANDARD_RENDER_PASS) {
render_slab();
- glColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE);
- } else {
- if(pass!=0) return;
}
-
- render_slab();
}
void MapSlab::CustomRenderPov(PovState& pov)
diff --git a/modules/gfx/src/prim_list.cc b/modules/gfx/src/prim_list.cc
index 4c2395c14..72047adde 100644
--- a/modules/gfx/src/prim_list.cc
+++ b/modules/gfx/src/prim_list.cc
@@ -129,12 +129,14 @@ struct AALineEntryLess
void PrimList::CustomRenderGL(RenderPass pass)
{
- if(pass!=STANDARD_RENDER_PASS) return;
- va_.RenderGL();
+ if(pass==STANDARD_RENDER_PASS || pass==TRANSPARENT_RENDER_PASS) {
+ va_.RenderGL();
+ }
}
void PrimList::CustomRenderPov(PovState& pov)
{
+ // TODO: add primlist pov export
}
void PrimList::AddPoint(geom::Vec3& p, const Color& col)
diff --git a/modules/gfx/src/primitives.cc b/modules/gfx/src/primitives.cc
index 712a9077a..b649c17f0 100644
--- a/modules/gfx/src/primitives.cc
+++ b/modules/gfx/src/primitives.cc
@@ -225,7 +225,7 @@ void Quad::RenderGL(RenderPass pass)
if (!this->IsVisible()) {
return;
}
- if (!(pass==OPAQUE_RENDER_PASS || pass==STANDARD_RENDER_PASS)) {
+ if (!(pass==DEPTH_RENDER_PASS || pass==STANDARD_RENDER_PASS)) {
return;
}
glDisable(GL_LIGHTING);
diff --git a/modules/gfx/src/render_pass.hh b/modules/gfx/src/render_pass.hh
index 00c5f7c23..2105b9bb5 100644
--- a/modules/gfx/src/render_pass.hh
+++ b/modules/gfx/src/render_pass.hh
@@ -32,9 +32,12 @@ typedef enum {
GLOW_RENDER_PASS,
/// \brief renders objects with solid color as used for shadow map
/// generation
- OPAQUE_RENDER_PASS,
+ DEPTH_RENDER_PASS,
/// \ brief for transparent objects
- TRANSPARENT_RENDER_PASS
+ /// the standard render pass is not supposed to render transparent
+ /// objects, as they should get drawn after the rest of the scene
+ TRANSPARENT_RENDER_PASS,
+ OVERLAY_RENDER_PASS
} RenderPass;
}}
diff --git a/modules/gfx/src/scene.cc b/modules/gfx/src/scene.cc
index 4ded0a30c..b81d4b0cf 100644
--- a/modules/gfx/src/scene.cc
+++ b/modules/gfx/src/scene.cc
@@ -112,7 +112,7 @@ Scene::Scene():
fog_color_(0.0,0.0,0.0,0.0),
shadow_flag_(false),
shadow_quality_(1),
- texture_id_(),
+ shadow_texture_id_(),
auto_autoslab_(true),
offscreen_flag_(false),
main_offscreen_buffer_(0),
@@ -285,7 +285,7 @@ void Scene::InitGL()
Shader::Instance().Setup();
Shader::Instance().Activate("fraglight");
- glGenTextures(1,&texture_id_);
+ glGenTextures(1,&shadow_texture_id_);
#endif
prep_glyphs();
@@ -470,7 +470,7 @@ void Scene::RenderGL()
#if OST_SHADER_SUPPORT_ENABLED
if(shadow_flag_) {
prep_shadow_map();
- #if DEBUG_SMAP
+ #ifdef DEBUG_SMAP
return;
#endif
}
@@ -1586,11 +1586,11 @@ void Scene::prep_shadow_map()
glMultMatrix(ltrans.GetTransposedMatrix().Data());
// only render non-transparent objects for the shadow map
- root_node_->RenderGL(OPAQUE_RENDER_PASS);
+ root_node_->RenderGL(DEPTH_RENDER_PASS);
// now get the shadow map
glActiveTexture(GL_TEXTURE0);
- glBindTexture(GL_TEXTURE_2D, texture_id_);
+ glBindTexture(GL_TEXTURE_2D, shadow_texture_id_);
glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
0,0, smap_size,smap_size, 0);
@@ -1786,7 +1786,14 @@ void Scene::render_scene_with_glow()
glDepthFunc(GL_LEQUAL);
glDepthMask(1);
glEnable(GL_DEPTH_TEST);
+
root_node_->RenderGL(STANDARD_RENDER_PASS);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ root_node_->RenderGL(TRANSPARENT_RENDER_PASS);
+ glDisable(GL_BLEND);
+ root_node_->RenderGL(OVERLAY_RENDER_PASS);
+
glPushAttrib(GL_ENABLE_BIT);
glEnable(GL_COLOR_MATERIAL);
glShadeModel(GL_FLAT);
diff --git a/modules/gfx/src/scene.hh b/modules/gfx/src/scene.hh
index 6c88204d2..42e9c9857 100644
--- a/modules/gfx/src/scene.hh
+++ b/modules/gfx/src/scene.hh
@@ -403,7 +403,7 @@ private:
Color fog_color_;
bool shadow_flag_;
int shadow_quality_;
- GLuint texture_id_;
+ GLuint shadow_texture_id_;
bool auto_autoslab_;
bool offscreen_flag_; // a simple indicator whether in offscreen mode or not
diff --git a/modules/gfx/src/shader.cc b/modules/gfx/src/shader.cc
index e7d1cd5b7..9f1cbb803 100644
--- a/modules/gfx/src/shader.cc
+++ b/modules/gfx/src/shader.cc
@@ -137,8 +137,8 @@ void Shader::Setup()
{"fraglight_lf_fs.glsl", GL_FRAGMENT_SHADER},
{"basic_lfs_vs.glsl", GL_VERTEX_SHADER},
{"basic_lfs_fs.glsl", GL_FRAGMENT_SHADER},
- {"fraglight_lfs_vs.glsl", GL_VERTEX_SHADER},
- {"fraglight_lfs_fs.glsl", GL_FRAGMENT_SHADER},
+ {"fraglight_vs.glsl", GL_VERTEX_SHADER},
+ {"fraglight_fs.glsl", GL_FRAGMENT_SHADER},
{"basic_hf_vs.glsl", GL_VERTEX_SHADER},
{"selfx_vs.glsl", GL_VERTEX_SHADER},
{"selfx_fs.glsl", GL_FRAGMENT_SHADER},
@@ -205,8 +205,8 @@ void Shader::Setup()
}
// fraglight shader with shadow map
shader_program_list.clear();
- shader_program_list.push_back(shader_code_map_["fraglight_lfs_vs.glsl"]);
- shader_program_list.push_back(shader_code_map_["fraglight_lfs_fs.glsl"]);
+ shader_program_list.push_back(shader_code_map_["fraglight_vs.glsl"]);
+ shader_program_list.push_back(shader_code_map_["fraglight_fs.glsl"]);
if(link_shader(shader_program_list,"fraglight_shadow",shader_program_id)) {
shader_program_map_["fraglight_shadow"]=shader_program_id;
}
diff --git a/modules/gfx/src/shader/fraglight_lfs_fs.glsl b/modules/gfx/src/shader/fraglight_fs.glsl
similarity index 68%
rename from modules/gfx/src/shader/fraglight_lfs_fs.glsl
rename to modules/gfx/src/shader/fraglight_fs.glsl
index d6a9580e7..d4ed6cb6f 100644
--- a/modules/gfx/src/shader/fraglight_lfs_fs.glsl
+++ b/modules/gfx/src/shader/fraglight_fs.glsl
@@ -1,34 +1,27 @@
+uniform bool lighting_flag;
+uniform bool two_sided_flag;
+uniform bool fog_flag;
+uniform bool occlusion_flag;
+uniform vec2 ambient_weight;
+varying vec4 ambient_color;
uniform sampler2D shadow_map;
uniform bool shadow_flag;
uniform float depth_bias;
uniform float epsilon;
uniform float shadow_multiplier;
-uniform bool lighting_flag;
-uniform bool two_sided_flag;
-uniform bool fog_flag;
-// copy from basic_lfs_fs !
-float CalcShadowFactor(in vec4 coord, in vec2 o)
-{
- // get original depth value of line projected towards light
- float d = texture2D(shadow_map, coord.xy+o*epsilon).x+depth_bias;
- return d<=coord.z ? shadow_multiplier : 1.0;
-}
-
-// modified copy from basic_fl_vs !
+// copy from basic_fl_vs !
bool DirectionalLight(in vec3 normal,
in float shin,
inout vec4 ambient,
inout vec4 diffuse,
inout vec4 specular,
- inout bool lflag)
+ inout bool lflag)
{
float n_vp = max(0.0, dot(normal, normalize(gl_LightSource[0].position.xyz)));
- lflag = n_vp>0.0;
- if(n_vp==0.0 && two_sided_flag) return false;
-
float pf = 0.0;
+ lflag = n_vp>0.0;
if(n_vp>0.0 && shin>0.0) {
float n_hv = max(0.0, dot(normal, normalize(gl_LightSource[0].halfVector.xyz)));
pf=pow(n_hv, shin);
@@ -41,33 +34,53 @@ bool DirectionalLight(in vec3 normal,
return true;
}
+// copy from basic_lfs_fs !
+float CalcShadowFactor(in vec4 coord, in vec2 o)
+{
+ // get original depth value of line projected towards light
+ float d = texture2D(shadow_map, coord.xy+o*epsilon).x+depth_bias;
+ return d<=coord.z ? shadow_multiplier : 1.0;
+}
+
void main()
{
bool lflag=false;
-
if(lighting_flag) {
vec3 normal = normalize(gl_TexCoord[0].stp);
vec4 amb = vec4(0.0);
vec4 diff = vec4(0.0);
vec4 spec = vec4(0.0);
- vec4 color = vec4(0.0);
-
+
+ vec4 color = gl_Color;
+ if(occlusion_flag) {
+ /*
+ For ambient occlusion and local coloring, two effects are possible.
+ (1) Blending of the original fragment color and the accumulated
+ color of the neighbouring fragments, by ambient_weight[0].
+ (2) Attenuating the resulting color intensity by the ambient occlusion,
+ modulated by ambient_weight[1]
+ Only the rgb values are affected, fragment opacity is unchanged
+ */
+
+ color.rgb = mix(gl_Color.rgb,ambient_color.rgb,ambient_weight[0]);
+ color.rgb = mix(color.rgb,ambient_color.aaa*color.rgb,ambient_weight[1]);
+ }
+
if(DirectionalLight(normal, gl_FrontMaterial.shininess, amb, diff, spec,lflag)) {
-
- color = gl_FrontLightModelProduct.sceneColor +
- (amb * gl_FrontMaterial.ambient * gl_Color) +
- (diff * gl_FrontMaterial.diffuse * gl_Color) +
- (spec * gl_FrontMaterial.specular);
+
+ color = gl_FrontLightModelProduct.sceneColor +
+ (amb * gl_FrontMaterial.ambient * color) +
+ (diff * gl_FrontMaterial.diffuse * color) +
+ (spec * gl_FrontMaterial.specular);
} else {
bool dummy;
DirectionalLight(-normal, gl_BackMaterial.shininess, amb, diff, spec, dummy);
color = gl_BackLightModelProduct.sceneColor +
- (amb * gl_BackMaterial.ambient * gl_Color) +
- (diff * gl_BackMaterial.diffuse * gl_Color) +
+ (amb * gl_BackMaterial.ambient * color) +
+ (diff * gl_BackMaterial.diffuse * color) +
(spec * gl_BackMaterial.specular);
-
}
gl_FragColor = color;
diff --git a/modules/gfx/src/shader/fraglight_lfs_vs.glsl b/modules/gfx/src/shader/fraglight_vs.glsl
similarity index 68%
rename from modules/gfx/src/shader/fraglight_lfs_vs.glsl
rename to modules/gfx/src/shader/fraglight_vs.glsl
index 7052797e3..3eb7006e7 100644
--- a/modules/gfx/src/shader/fraglight_lfs_vs.glsl
+++ b/modules/gfx/src/shader/fraglight_vs.glsl
@@ -1,3 +1,6 @@
+uniform bool occlusion_flag;
+varying vec4 ambient_color;
+
void main()
{
// transformed position
@@ -14,6 +17,14 @@ void main()
// shadow map projection coords
gl_TexCoord[1] = gl_TextureMatrix[0] * gl_Vertex;
+ if(occlusion_flag) {
+ // ambient occlusion and color terms
+ ambient_color = gl_MultiTexCoord0;
+ } else {
+ ambient_color.rgb = gl_Color;
+ ambient_color.a = 1.0;
+ }
gl_FrontColor=gl_Color;
gl_BackColor=gl_Color;
}
+
diff --git a/modules/gfx/src/surface.cc b/modules/gfx/src/surface.cc
index 40db431fe..f5142f569 100644
--- a/modules/gfx/src/surface.cc
+++ b/modules/gfx/src/surface.cc
@@ -52,8 +52,9 @@ Surface::Surface(const String& name, const mol::SurfaceHandle& sh):
void Surface::CustomRenderGL(RenderPass pass)
{
- if(pass>0) return;
- va_.RenderGL();
+ if(pass==STANDARD_RENDER_PASS) {
+ va_.RenderGL();
+ }
}
void Surface::CustomRenderPov(PovState& pov)
@@ -269,6 +270,7 @@ void Surface::Apply(const gfx::UniformColorOp& op, bool store){
}
FlagRefresh();
}
+
void Surface::Apply(const gfx::BasicGradientColorOp& op, bool store)
{
if(store){
@@ -520,9 +522,9 @@ Vec3 RSurface::GetCenter() const
void RSurface::CustomRenderGL(RenderPass pass)
{
- if (!(pass==STANDARD_RENDER_PASS || pass==OPAQUE_RENDER_PASS))
- return;
- va_.RenderGL();
+ if(pass==STANDARD_RENDER_PASS) {
+ va_.RenderGL();
+ }
}
geom::AlignedCuboid RSurface::GetBoundingBox() const
diff --git a/modules/gfx/src/vertex_array.cc b/modules/gfx/src/vertex_array.cc
index 06d9123ee..1e870c105 100644
--- a/modules/gfx/src/vertex_array.cc
+++ b/modules/gfx/src/vertex_array.cc
@@ -361,6 +361,17 @@ void IndexedVertexArray::SetColor(VertexID id, const Color& c)
entry_list_[id].c[3]=c[3];
}
+void IndexedVertexArray::SetOpacity(float o)
+{
+ o=std::max(0.0f,std::min(1.0f,o));
+ // this should really just set a value in the shader...
+ // but we need to support the fixed function pipeline as well
+ for(EntryList::iterator it=entry_list_.begin();it!=entry_list_.end();++it) {
+ it->c[3]=o;
+ }
+ FlagRefresh();
+}
+
void IndexedVertexArray::RenderGL()
{
static bool use_buff=false;
diff --git a/modules/gfx/src/vertex_array.hh b/modules/gfx/src/vertex_array.hh
index 3279eafad..c11de523f 100644
--- a/modules/gfx/src/vertex_array.hh
+++ b/modules/gfx/src/vertex_array.hh
@@ -145,6 +145,8 @@ class DLLEXPORT_OST_GFX IndexedVertexArray {
Color GetColor(VertexID id) const;
void SetColor(VertexID id, const Color& col);
+ void SetOpacity(float o);
+
// OpenGL rendering call
void RenderGL();
--
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