Files
kraken/kraken/KRLight.h
kearwood 216cbe3eec PipelineInfo::CullMode and PipelineInfo::RasterMode are no longer within the PipelineInfo class, enabling easier forward declaration.
KRMaterial::bind now accepts remaining parameters required to set up the pipeline.
Removed GL calls from KRModel.
Replaced ifdef guards with pragma once.
KRMesh::model_format_t changed to ModelFormat and is no longer within KRMesh, enabling easier forward declaration.
2022-07-07 22:51:16 -07:00

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//
// KRLight.h
// Kraken Engine
//
// Copyright 2022 Kearwood Gilbert. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those of the
// authors and should not be interpreted as representing official policies, either expressed
// or implied, of Kearwood Gilbert.
//
#pragma once
#include "KRResource.h"
#include "KRNode.h"
#include "KRTexture.h"
static const float KRLIGHT_MIN_INFLUENCE = 0.15f; // 0.05f
// KRENGINE_MAX_SHADOW_BUFFERS must be at least 6 to allow omni-directional lights to render cube maps
#define KRENGINE_MAX_SHADOW_BUFFERS 6
#define KRENGINE_SHADOW_MAP_WIDTH 1024
#define KRENGINE_SHADOW_MAP_HEIGHT 1024
class KRLight : public KRNode {
public:
static void InitNodeInfo(KrNodeInfo* nodeInfo);
virtual ~KRLight();
virtual std::string getElementName() = 0;
virtual tinyxml2::XMLElement *saveXML( tinyxml2::XMLNode *parent);
virtual void loadXML(tinyxml2::XMLElement *e);
void setIntensity(float intensity);
float getIntensity();
void setDecayStart(float decayStart);
float getDecayStart();
const Vector3 &getColor();
void setColor(const Vector3 &color);
void setFlareTexture(std::string flare_texture);
void setFlareSize(float flare_size);
void setFlareOcclusionSize(float occlusion_size);
void deleteBuffers();
virtual void render(RenderInfo& ri);
int getShadowBufferCount();
GLuint *getShadowTextures();
KRViewport *getShadowViewports();
protected:
KRLight(KRScene &scene, std::string name);
float m_intensity;
float m_decayStart;
Vector3 m_color;
std::string m_flareTexture;
KRTexture *m_pFlareTexture;
float m_flareSize;
float m_flareOcclusionSize;
bool m_casts_shadow;
bool m_light_shafts;
float m_dust_particle_density;
float m_dust_particle_size;
float m_dust_particle_intensity;
GLuint m_occlusionQuery; // Occlusion query for attenuating occluded flares
// Shadow Maps
int m_cShadowBuffers;
GLuint shadowFramebuffer[KRENGINE_MAX_SHADOW_BUFFERS], shadowDepthTexture[KRENGINE_MAX_SHADOW_BUFFERS];
bool shadowValid[KRENGINE_MAX_SHADOW_BUFFERS];
KRViewport m_shadowViewports[KRENGINE_MAX_SHADOW_BUFFERS];
void allocateShadowBuffers(int cBuffers);
void invalidateShadowBuffers();
virtual int configureShadowBufferViewports(const KRViewport &viewport);
void renderShadowBuffers(RenderInfo& ri);
};