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#include "UnityPrefix.h"
#include "BaseRenderer.h"
#include "Runtime/Shaders/Material.h"
#include "UnityScene.h"
#include "Runtime/Input/TimeManager.h"
#include "Runtime/Shaders/MaterialProperties.h"
#include "Runtime/Shaders/Shader.h"
#include "Runtime/GfxDevice/GfxDevice.h"
#include "External/shaderlab/Library/subshader.h"
#include "External/shaderlab/Library/intshader.h"
#include "External/MurmurHash/MurmurHash2.h"
using namespace Unity;
BaseRenderer::BaseRenderer (RendererType type)
: m_RendererType(type)
, m_LightmapST(1.0f,1.0f,0.0f,0.0f)
, m_LightmapIndex (0xFF)
, m_CastShadows(true)
, m_ReceiveShadows(true)
, m_IsVisibleInScene(false)
, m_CustomProperties(NULL)
, m_CustomPropertiesHash(0)
, m_TransformDirty(true)
, m_BoundsDirty(true)
, m_GlobalLayeringData(GlobalLayeringDataCleared())
{
Assert(type <= 0xFF);
#if UNITY_EDITOR
m_ScaleInLightmap = 1.0f;
#endif
}
BaseRenderer::~BaseRenderer ()
{
}
void BaseRenderer::GetLocalAABB (AABB& aabb)
{
GetTransformInfo (); // updates if needed
aabb = m_TransformInfo.localAABB;
}
void BaseRenderer::GetWorldAABB (AABB& aabb)
{
GetTransformInfo (); // updates if needed
aabb = m_TransformInfo.worldAABB;
}
int BaseRenderer::GetLightmapIndexInt() const
{
if (m_LightmapIndex == 0xFF)
return -1;
else
return m_LightmapIndex;
}
void BaseRenderer::SetLightmapIndexIntNoDirty(int index)
{
if (index == -1)
m_LightmapIndex = 0xFF;
else if (index < 0 || index > 0xFF)
{
m_LightmapIndex = 0xFF;
ErrorString("Lightmap index must be less than 256");
}
else
m_LightmapIndex = index;
}
// Treats objects that actually _use_ lightmaps as lightmapped.
bool BaseRenderer::IsLightmappedForRendering() const
{
// Special indices:
// 0xFF: object does not use lightmaps
// 0xFE: object only influences lightmaps, but does not use them itself
return m_LightmapIndex != 0xFF && m_LightmapIndex != 0xFE;
}
// Treats objects that _influence_ lightmaps as lightmapped.
bool BaseRenderer::IsLightmappedForShadows() const
{
return m_LightmapIndex != 0xFF;
}
bool operator == (const TransformInfo& a, const TransformInfo& b){
return a.invScale == b.invScale
&& a.localAABB.GetCenter() == b.localAABB.GetCenter()
&& a.localAABB.GetExtent() == b.localAABB.GetExtent()
&& a.transformType == b.transformType
&& a.worldAABB.GetCenter() == b.worldAABB.GetCenter()
&& a.worldAABB.GetExtent() == b.worldAABB.GetExtent()
&& a.worldMatrix.GetAxisX() == b.worldMatrix.GetAxisX();
}
void BaseRenderer::ComputeCustomPropertiesHash()
{
if (m_CustomProperties)
{
const float* buf = m_CustomProperties->GetBufferBegin();
const float* bufEnd = m_CustomProperties->GetBufferEnd();
m_CustomPropertiesHash = MurmurHash2A (buf, (const UInt8*)bufEnd - (const UInt8*)buf, 0x9747b28c);
}
else
{
m_CustomPropertiesHash = 0;
}
}
void BaseRenderer::ApplyCustomProperties (Unity::Material& mat, Shader* shader, int subshaderIndex) const
{
if (!m_CustomProperties)
return;
// Hopefully most of per-instance custom properties only go into shader constants; those
// are applied later on in BeforeDrawCall. This is a fast path since it does not involve changing
// the material. Some properties however might affect fixed function state (alpha test reference, texture
// combiner colors, fixed function material etc.), those need to be applied here.
const dynamic_array<int>& fixedFunctionProps = shader->GetShaderLabShader()->GetSubShader(subshaderIndex).GetPropsAffectingFF();
if (fixedFunctionProps.empty())
return; // no props that affect fixed function state, great!
//@TODO: slow implementation for now just to get this working properly!
const MaterialPropertyBlock::Property* curProp = m_CustomProperties->GetPropertiesBegin();
const MaterialPropertyBlock::Property* propEnd = m_CustomProperties->GetPropertiesEnd();
const float* propBuffer = m_CustomProperties->GetBufferBegin();
for (; curProp != propEnd; ++curProp)
{
if (std::find(fixedFunctionProps.begin(), fixedFunctionProps.end(), curProp->nameIndex) == fixedFunctionProps.end())
continue; // this property does not affect fixed function state
ShaderLab::FastPropertyName name;
name.index = curProp->nameIndex;
const float* src = &propBuffer[curProp->offset];
if (curProp->rows == 1 && curProp->cols == 1)
{
mat.SetFloat (name, *src);
}
else if (curProp->rows == 1 && curProp->cols == 4)
{
mat.SetColor (name, ColorRGBAf(src));
}
else if (curProp->rows == 4 && curProp->cols == 4)
{
mat.SetMatrix (name, Matrix4x4f(src));
}
else
{
AssertString ("Unknown property dimensions");
}
}
}
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