111 lines
3.9 KiB
C++
Executable File
111 lines
3.9 KiB
C++
Executable File
//
|
|
// KRLight.h
|
|
// Kraken Engine
|
|
//
|
|
// Copyright 2025 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 "resources/KRResource.h"
|
|
#include "KRNode.h"
|
|
#include "resources/texture/KRTexture.h"
|
|
#include "resources/texture/KRTextureBinding.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() const;
|
|
void setDecayStart(float decayStart);
|
|
float getDecayStart() const;
|
|
const hydra::Vector3& getColor();
|
|
void setColor(const hydra::Vector3& color);
|
|
|
|
void setFlareTexture(std::string flare_texture);
|
|
void setFlareSize(float flare_size);
|
|
void setFlareOcclusionSize(float occlusion_size);
|
|
void deleteBuffers();
|
|
|
|
virtual void getResourceBindings(std::list<KRResourceBinding*>& bindings) override;
|
|
virtual void render(RenderInfo& ri) override;
|
|
|
|
int getShadowBufferCount();
|
|
int* getShadowTextures();
|
|
KRViewport* getShadowViewports();
|
|
|
|
|
|
protected:
|
|
KRLight(KRScene& scene, std::string name);
|
|
|
|
bool getShaderValue(ShaderValue value, float* output) const override;
|
|
bool getShaderValue(ShaderValue value, hydra::Vector3* output) const override;
|
|
|
|
float m_intensity;
|
|
float m_decayStart;
|
|
hydra::Vector3 m_color;
|
|
|
|
KRTextureBinding m_flareTexture;
|
|
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;
|
|
|
|
int m_occlusionQuery; // Occlusion query for attenuating occluded flares
|
|
|
|
|
|
// Shadow Maps
|
|
int m_cShadowBuffers;
|
|
int 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);
|
|
};
|