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Implemented small optimization for hardware occlusion culling.

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Implemented parameter to allow hardware occlusion culling to be disabled.
This commit is contained in:
Kearwood Gilbert
2013-04-11 15:28:59 -07:00
parent def0bae4d8
commit 94cf3f7760
4 changed files with 39 additions and 10 deletions
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25
KREngine/kraken/KREngine.mm
View File

@@ -193,7 +193,8 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
@"dust_enable" : @46,
@"dust_intensity" : @47,
@"lod_bias" : @48,
@"debug_display" : @49
@"enable_realtime_occlusion" : @49,
@"debug_display" : @50
} copy];
[self loadShaders];
@@ -266,7 +267,7 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
-(int)getParameterCount
{
return 50;
return 51;
}
@@ -282,7 +283,7 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
-(NSString *)getParameterLabelWithIndex: (int)i
{
NSString *parameter_labels[50] = {
NSString *parameter_labels[51] = {
@"Camera FOV",
@"Shadow Quality (0 - 2)",
@"Enable per-pixel lighting",
@@ -332,13 +333,14 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
@"Dust - Enable",
@"Dust - Intensity",
@"LOD Bias",
@"Realtime Occlusion Tests",
@"Debug - Display"
};
return parameter_labels[i];
}
-(KREngineParameterType)getParameterTypeWithIndex: (int)i
{
KREngineParameterType types[50] = {
KREngineParameterType types[51] = {
KRENGINE_PARAMETER_FLOAT,
KRENGINE_PARAMETER_INT,
@@ -389,13 +391,14 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
KRENGINE_PARAMETER_BOOL,
KRENGINE_PARAMETER_FLOAT,
KRENGINE_PARAMETER_FLOAT,
KRENGINE_PARAMETER_BOOL,
KRENGINE_PARAMETER_INT
};
return types[i];
}
-(float)getParameterValueWithIndex: (int)i
{
float values[50] = {
float values[51] = {
_settings.perspective_fov,
(float)_settings.m_cShadowBuffers,
_settings.bEnablePerPixel ? 1.0f : 0.0f,
@@ -445,6 +448,7 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
_settings.dust_particle_enable,
_settings.dust_particle_intensity,
_settings.getLODBias(),
_settings.getEnableRealtimeOcclusion(),
_settings.debug_display
};
return values[i];
@@ -642,6 +646,9 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
_settings.setLODBias(v);
break;
case 49:
_settings.setEnableRealtimeOcclusion(bNewBoolVal);
break;
case 50:
_settings.debug_display = (KRRenderSettings::debug_display_type)v;
break;
}
@@ -649,12 +656,12 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
-(float)getParameterMinWithIndex: (int)i
{
float minValues[50] = {
float minValues[51] = {
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.01f, 50.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -10.0f, 0.0f
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, -10.0f, 0.0f, 0.0f
};
return minValues[i];
@@ -662,12 +669,12 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
-(float)getParameterMaxWithIndex: (int)i
{
float maxValues[50] = {
float maxValues[51] = {
PI, 3.0f, 1.0f, 1.0, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 10.0f,
1.0f, 10.0f, 2.0f, 1.0f, 1.0f, 1.0f, 5.0f, 1.0f, 0.5f, 1.0f,
2.0f, 2.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 10.0f, 1000.0f, 1.0f, 5.0f, 1000.0f, 1.0f, 5.0f, 3.0f,
1000.0f, 1000.0f, 0.01f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 10.0f, (float)(KRRenderSettings::KRENGINE_DEBUG_DISPLAY_NUMBER - 1)
1000.0f, 1000.0f, 0.01f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 10.0f, 1.0f, (float)(KRRenderSettings::KRENGINE_DEBUG_DISPLAY_NUMBER - 1)
};
return maxValues[i];

10
KREngine/kraken/KRRenderSettings.cpp
View File

@@ -11,6 +11,7 @@
KRRenderSettings::KRRenderSettings()
{
m_enable_realtime_occlusion = true;
bShowShadowBuffer = false;
bShowOctree = false;
bShowDeferred = false;
@@ -192,3 +193,12 @@ void KRRenderSettings::setLODBias(float v)
{
m_lodBias = v;
}
bool KRRenderSettings::getEnableRealtimeOcclusion()
{
return m_enable_realtime_occlusion;
}
void KRRenderSettings::setEnableRealtimeOcclusion(bool enable)
{
m_enable_realtime_occlusion = enable;
}

4
KREngine/kraken/KRRenderSettings.h
View File

@@ -97,8 +97,12 @@ public:
KRENGINE_DEBUG_DISPLAY_NUMBER
} debug_display;
bool getEnableRealtimeOcclusion();
void setEnableRealtimeOcclusion(bool enable);
private:
float m_lodBias;
bool m_enable_realtime_occlusion;
};
#endif

10
KREngine/kraken/KRScene.cpp
View File

@@ -201,6 +201,11 @@ void KRScene::render(KROctreeNode *pOctreeNode, std::map<KRAABB, int> &visibleBo
bool bVisible = false;
bool bNeedOcclusionTest = true;
if(!pCamera->settings.getEnableRealtimeOcclusion()) {
bVisible = true;
bNeedOcclusionTest = false;
}
if(!bVisible) {
// Assume bounding boxes are visible without occlusion test queries if the camera is inside the box.
// The near clipping plane of the camera is taken into consideration by expanding the match area
@@ -239,7 +244,10 @@ void KRScene::render(KROctreeNode *pOctreeNode, std::map<KRAABB, int> &visibleBo
for(int i=0; i<8; i++) {
if(pOctreeNode->getChildren()[i] != NULL) child_count++;
}
if(child_count == 1) bVisible = true;
if(child_count == 1) {
bVisible = true;
bNeedOcclusionTest = false;
}
}
}