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Performance optimizations in deferred lighting shaders

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Created structures for alpha transparency and occlusion culling
Fixed memory allocation issue in KREngine.mm (pointer to NSDictionary allocated on stack retained and later dereferenced when popped)

--HG--
extra : convert_revision : svn%3A7752d6cf-9f14-4ad2-affc-04f1e67b81a5/trunk%4074
This commit is contained in:
kearwood
2012-08-23 16:55:46 +00:00
parent 6d7e7d9abb
commit 1efbb63ecf
16 changed files with 157 additions and 71 deletions
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38
KREngine/KREngine/Classes/KRCamera.h
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@@ -54,12 +54,12 @@ public:
GLint backingWidth, backingHeight;
void renderFrame(KRContext &context, KRScene &scene, KRMat4 &viewMatrix);
void renderShadowBuffer(KRContext &context, KRScene &scene, int iShadow);
void renderFrame(KRScene &scene, KRMat4 &viewMatrix);
void renderShadowBuffer(KRScene &scene, int iShadow);
void invalidatePostShader();
void invalidateShadowBuffers();
void allocateShadowBuffers();
void createBuffers(KRContext &context);
void createBuffers();
KRVector3 getPosition() const;
void setPosition(const KRVector3 &position);
@@ -105,7 +105,6 @@ public:
KRVector2 m_viewportSize;
std::vector<KRInstance *> m_transparentInstances;
int m_cShadowBuffers;
std::string m_debug_text;
@@ -159,14 +158,14 @@ private:
GLuint m_postShaderProgram;
GLuint m_shadowShaderProgram;
void renderPost(KRContext &context);
void bindPostShader(KRContext &context);
void renderPost();
void bindPostShader();
void destroyBuffers();
void renderFrame(KRContext &context, KRScene &scene, KRMat4 &viewMatrix, KRVector3 &lightDirection, KRVector3 &cameraPosition);
void renderFrame(KRScene &scene, KRMat4 &viewMatrix, KRVector3 &lightDirection, KRVector3 &cameraPosition);
void loadShaders(KRContext &context);
void loadShaders();
// Code using these shader functions will later be refactored to integrate with KRShaderManager
static bool ValidateProgram(GLuint prog);
@@ -174,6 +173,29 @@ private:
static bool CompileShader(GLuint *shader, GLenum type, const std::string &shader_source, const std::string &options);
static bool LinkProgram(GLuint prog);
class KRInstanceDistance {
public:
KRInstanceDistance(KRInstance *pInstance, float distance) : m_pInstance(pInstance), m_distance(distance) {};
~KRInstanceDistance() {};
// a predicate implemented as a class:
class InstanceEqualsPredicate
{
public:
InstanceEqualsPredicate(KRInstance *pInstance) : m_pInstance(pInstance) {};
bool operator() (const KRInstanceDistance& value) {return value.m_pInstance == m_pInstance; }
private:
KRInstance *m_pInstance;
};
KRInstance *m_pInstance;
float m_distance;
};
std::list<KRInstanceDistance> m_transparentInstances;
};
#endif