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Material.h
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Material.h
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#pragma once
// only used for loading and saving
struct SaveMaterial
{
char szName[MAXNAMEBUFFER];
COLORREF cBase; // can be overriden by texture on object itself
COLORREF cGlossy; // specular of glossy layer
COLORREF cClearcoat; // specular of clearcoat layer
float fWrapLighting; // wrap/rim lighting factor (0(off)..1(full))
bool bIsMetal; // is a metal material or not
float fRoughness; // roughness of glossy layer (0(diffuse)..1(specular))
unsigned char fGlossyImageLerp; // use image also for the glossy layer (0(no tinting at all)..1(use image)), stupid quantization because of legacy loading/saving
float fEdge; // edge weight/brightness for glossy and clearcoat (0(dark edges)..1(full fresnel))
unsigned char fThickness; // thickness for transparent materials (0(paper thin)..1(maximum)), stupid quantization because of legacy loading/saving
float fOpacity; // opacity (0..1)
unsigned char bOpacityActive_fEdgeAlpha; // lowest bit = on/off, upper 7bits = edge weight for fresnel (0(no opacity change)..1(full fresnel)), stupid encoding because of legacy loading/saving
};
struct SavePhysicsMaterial
{
char szName[MAXNAMEBUFFER];
float fElasticity;
float fElasticityFallOff;
float fFriction;
float fScatterAngle;
};
class Material
{
public:
inline Material() :
m_fWrapLighting(0.0f)
, m_fRoughness(0.0f)
, m_fGlossyImageLerp(1.0f)
, m_fThickness(0.05f)
, m_fEdge(1.0f)
, m_fEdgeAlpha(1.0f)
, m_fOpacity(1.0f)
, m_cBase(0xB469FF)
, m_cGlossy(0)
, m_cClearcoat(0)
, m_bIsMetal(false)
, m_bOpacityActive(false)
, m_fElasticity(0.0f)
, m_fElasticityFalloff(0.0f)
, m_fFriction(0.0f)
, m_fScatterAngle(0.0f)
{
memset(m_szName, 0, MAXNAMEBUFFER);
strcpy_s(m_szName, "dummyMaterial");
}
inline Material(float wrapLighting, float roughness, float glossyImageLerp, float thickness, float edge, float edgeAlpha, float opacity,
COLORREF base, COLORREF glossy, COLORREF clearcoat, bool isMetal, bool opacityActive,
float elasticity, float elasticityFalloff, float friction, float scatterAngle) :
m_fWrapLighting(wrapLighting)
, m_fRoughness(roughness)
, m_fGlossyImageLerp(glossyImageLerp)
, m_fThickness(thickness)
, m_fEdge(edge)
, m_fEdgeAlpha(edgeAlpha)
, m_fOpacity(opacity)
, m_cBase(base)
, m_cGlossy(glossy)
, m_cClearcoat(clearcoat)
, m_bIsMetal(isMetal)
, m_bOpacityActive(opacityActive)
, m_fElasticity(elasticity)
, m_fElasticityFalloff(elasticityFalloff)
, m_fFriction(friction)
, m_fScatterAngle(scatterAngle)
{
memset(m_szName, 0, MAXNAMEBUFFER);
strcpy_s(m_szName, "dummyMaterial");
}
inline Material(const Material * const pmat) :
m_fWrapLighting(pmat->m_fWrapLighting)
, m_fRoughness(pmat->m_fRoughness)
, m_fGlossyImageLerp(pmat->m_fGlossyImageLerp)
, m_fThickness(pmat->m_fThickness)
, m_fEdge(pmat->m_fEdge)
, m_fEdgeAlpha(pmat->m_fEdgeAlpha)
, m_fOpacity(pmat->m_fOpacity)
, m_cBase(pmat->m_cBase)
, m_cGlossy(pmat->m_cGlossy)
, m_cClearcoat(pmat->m_cClearcoat)
, m_bIsMetal(pmat->m_bIsMetal)
, m_bOpacityActive(pmat->m_bOpacityActive)
, m_fElasticity(pmat->m_fElasticity)
, m_fElasticityFalloff(pmat->m_fElasticityFalloff)
, m_fFriction(pmat->m_fFriction)
, m_fScatterAngle(pmat->m_fScatterAngle)
{
memcpy(m_szName, pmat->m_szName, MAXNAMEBUFFER);
}
inline unsigned long long hash() const
{
union {
struct {
unsigned char uc[8];
};
unsigned long long ull;
} h;
h.uc[0] = ((unsigned int)m_bIsMetal << 6) | ((unsigned int)m_bOpacityActive << 7) | (((size_t)this / sizeof(Material)) & 63); //!! meh
h.uc[1] = (unsigned char)(clamp(m_fWrapLighting, 0.f, 1.f)*255.0f);
h.uc[2] = (unsigned char)(clamp(m_fRoughness, 0.f, 1.f)*255.0f);
h.uc[3] = (((unsigned char)(clamp(m_fEdge, 0.f, 1.f)*255.0f)) >> 4) | (m_bOpacityActive ? ((((unsigned char)(clamp(m_fEdgeAlpha, 0.f, 1.f)*255.0f)) >> 4) << 4) : 0);
h.uc[4] = ((m_cBase & 255) >> 5) | ((((m_cBase >> 8) & 255) >> 5) << 3) | ((((m_cBase >> 16) & 255) >> 6) << 6);
h.uc[5] = !m_bIsMetal ? ((m_cGlossy & 255) >> 5) | ((((m_cGlossy >> 8) & 255) >> 5) << 3) | ((((m_cGlossy >> 16) & 255) >> 6) << 6) : 0;
h.uc[6] = ((m_cClearcoat & 255) >> 5) | ((((m_cClearcoat >> 8) & 255) >> 5) << 3) | ((((m_cClearcoat >> 16) & 255) >> 6) << 6);
h.uc[7] = m_bOpacityActive ? (unsigned char)(clamp(m_fOpacity, 0.f, 1.f)*255.0f) : 0;
return h.ull;
/*return ((unsigned long long)(h.uc[0]& 1)<< 0) | ((unsigned long long)(h.uc[1]& 1)<< 1) | ((unsigned long long)(h.uc[2]& 1)<< 2) | ((unsigned long long)(h.uc[3]& 1)<< 3) | ((unsigned long long)(h.uc[4]& 1)<< 4) | ((unsigned long long)(h.uc[5]& 1)<< 5) | ((unsigned long long)(h.uc[6]& 1)<< 6) | ((unsigned long long)(h.uc[7]& 1)<< 7) |
((unsigned long long)(h.uc[0]& 2)<< 8) | ((unsigned long long)(h.uc[1]& 2)<< 9) | ((unsigned long long)(h.uc[2]& 2)<<10) | ((unsigned long long)(h.uc[3]& 2)<<11) | ((unsigned long long)(h.uc[4]& 2)<<12) | ((unsigned long long)(h.uc[5]& 2)<<13) | ((unsigned long long)(h.uc[6]& 2)<<14) | ((unsigned long long)(h.uc[7]& 2)<<15) |
((unsigned long long)(h.uc[0]& 4)<<16) | ((unsigned long long)(h.uc[1]& 4)<<17) | ((unsigned long long)(h.uc[2]& 4)<<18) | ((unsigned long long)(h.uc[3]& 4)<<19) | ((unsigned long long)(h.uc[4]& 4)<<20) | ((unsigned long long)(h.uc[5]& 4)<<21) | ((unsigned long long)(h.uc[6]& 4)<<22) | ((unsigned long long)(h.uc[7]& 4)<<23) |
((unsigned long long)(h.uc[0]& 8)<<24) | ((unsigned long long)(h.uc[1]& 8)<<25) | ((unsigned long long)(h.uc[2]& 8)<<26) | ((unsigned long long)(h.uc[3]& 8)<<27) | ((unsigned long long)(h.uc[4]& 8)<<28) | ((unsigned long long)(h.uc[5]& 8)<<29) | ((unsigned long long)(h.uc[6]& 8)<<30) | ((unsigned long long)(h.uc[7]& 8)<<31) |
((unsigned long long)(h.uc[0]& 16)<<32) | ((unsigned long long)(h.uc[1]& 16)<<33) | ((unsigned long long)(h.uc[2]& 16)<<34) | ((unsigned long long)(h.uc[3]& 16)<<35) | ((unsigned long long)(h.uc[4]& 16)<<36) | ((unsigned long long)(h.uc[5]& 16)<<37) | ((unsigned long long)(h.uc[6]& 16)<<38) | ((unsigned long long)(h.uc[7]& 16)<<39) |
((unsigned long long)(h.uc[0]& 32)<<40) | ((unsigned long long)(h.uc[1]& 32)<<41) | ((unsigned long long)(h.uc[2]& 32)<<42) | ((unsigned long long)(h.uc[3]& 32)<<43) | ((unsigned long long)(h.uc[4]& 32)<<44) | ((unsigned long long)(h.uc[5]& 32)<<45) | ((unsigned long long)(h.uc[6]& 32)<<46) | ((unsigned long long)(h.uc[7]& 32)<<47) |
((unsigned long long)(h.uc[0]& 64)<<48) | ((unsigned long long)(h.uc[1]& 64)<<49) | ((unsigned long long)(h.uc[2]& 64)<<50) | ((unsigned long long)(h.uc[3]& 64)<<51) | ((unsigned long long)(h.uc[4]& 64)<<52) | ((unsigned long long)(h.uc[5]& 64)<<53) | ((unsigned long long)(h.uc[6]& 64)<<54) | ((unsigned long long)(h.uc[7]& 64)<<55) |
((unsigned long long)(h.uc[0]&128)<<56) | ((unsigned long long)(h.uc[1]&128)<<57) | ((unsigned long long)(h.uc[2]&128)<<58) | ((unsigned long long)(h.uc[3]&128)<<59) | ((unsigned long long)(h.uc[4]&128)<<60) | ((unsigned long long)(h.uc[5]&128)<<61) | ((unsigned long long)(h.uc[6]&128)<<62) | ((unsigned long long)(h.uc[7]&128)<<63);*/
/*const unsigned char* const p = reinterpret_cast<const unsigned char*>( &(this->m_fWrapLighting) );
unsigned int h = 2166136261;
for (unsigned int i = 0; i <= (unsigned int)(&(this->m_bOpacityActive))-(unsigned int)(&(this->m_fWrapLighting)); ++i)
h = (h * 16777619) ^ p[i];
return (unsigned long long)h;*/
}
char m_szName[MAXNAMEBUFFER];
float m_fWrapLighting;
float m_fRoughness;
float m_fGlossyImageLerp;
float m_fThickness;
float m_fEdge;
float m_fEdgeAlpha;
float m_fOpacity;
COLORREF m_cBase;
COLORREF m_cGlossy;
COLORREF m_cClearcoat;
bool m_bIsMetal;
bool m_bOpacityActive;
//physics
float m_fElasticity;
float m_fElasticityFalloff;
float m_fFriction;
float m_fScatterAngle;
};