1 files changed, 262 insertions, 0 deletions
diff --git a/Runtime/Camera/RenderSettings.cpp b/Runtime/Camera/RenderSettings.cpp
new file mode 100644
index 0000000..8c4d4ee
--- /dev/null
+++ b/Runtime/Camera/RenderSettings.cpp
@@ -0,0 +1,262 @@
+#include "UnityPrefix.h"
+#include "RenderSettings.h"
+#include "External/shaderlab/Library/properties.h"
+#include "Runtime/Graphics/Texture2D.h"
+#include "Light.h"
+#include "Runtime/Misc/ResourceManager.h"
+#include "Runtime/BaseClasses/ManagerContext.h"
+#include "Runtime/GfxDevice/GfxDevice.h"
+#include "External/shaderlab/Library/shaderlab.h"
+#include "Runtime/Camera/LightManager.h"
+#include "Runtime/Serialize/TransferFunctions/TransferNameConversions.h"
+
+static SHADERPROP (LightTextureB0);
+static SHADERPROP (HaloFalloff);
+
+
+RenderSettings::RenderSettings (MemLabelId label, ObjectCreationMode mode)
+:	Super(label, mode)
+{
+	m_LinearFogStart = 0; m_LinearFogEnd = 300; m_FogDensity = .01f;
+	m_Fog = false;
+	m_FogMode = kFogExp2;
+	m_FlareFadeSpeed = 3.0f;
+}
+
+
+void RenderSettings::Reset ()
+{
+	Super::Reset();
+
+	m_FogColor.Set (.5,.5,.5,1);
+	m_LinearFogStart = 0; m_LinearFogEnd = 300; m_FogDensity = .01f;
+	m_Fog = false;
+	m_FogMode = kFogExp2;
+	m_AmbientLight.Set (.2f, .2f, .2f, 1);
+	m_FlareStrength = 1.0f;
+	m_FlareFadeSpeed = 3.0f;
+	m_HaloStrength = .5f;
+}
+
+float RenderSettings::CalcFogFactor (float distance) const
+{
+	if (m_Fog)
+		return 1.0F-exp(-(m_FogDensity * m_FogDensity * distance * distance));
+	
+	return 0.0F;
+}
+
+Texture2D* RenderSettings::GetDefaultSpotCookie()
+{
+	Texture2D* tex = m_SpotCookie;
+	if (tex)
+		return tex;
+	else
+	{
+		static PPtr<Texture2D> fallback;
+		if (!fallback)
+			fallback = GetBuiltinResource<Texture2D> ("Soft.psd");
+		return fallback;
+	}
+}
+
+RenderSettings::~RenderSettings ()
+{
+}
+
+void RenderSettings::SetupAmbient () const
+{
+	ColorRGBAf amb = GetAmbientLightInActiveColorSpace() * 0.5F;
+	GetGfxDevice().SetAmbient( amb.GetPtr() );
+}
+
+void RenderSettings::AwakeFromLoad (AwakeFromLoadMode awakeMode) {
+	Super::AwakeFromLoad (awakeMode);
+
+	ShaderLab::g_GlobalProperties->SetTexture (kSLPropLightTextureB0, builtintex::GetAttenuationTexture());
+
+	ApplyFog();
+	ApplyHaloTexture();
+	
+	// disable light 0 because GL state has it on by default (or something like that)
+	// This handles the wacky case where we have 0 vertex lights and a vertex lit shader (DOH!).
+	GetGfxDevice().DisableLights (0);
+	
+	if ((awakeMode & kDidLoadFromDisk) == 0)
+		ApplyFlareAndHaloStrength ();
+}
+
+void RenderSettings::ApplyFlareAndHaloStrength ()
+{
+	// if we are editing from inside the editor, the Halo values might have changed,
+	// So all lights need to update their halos
+	std::vector<SInt32> obj;
+	Object::FindAllDerivedObjects(ClassID (Light), &obj);
+	for (std::vector<SInt32>::iterator i = obj.begin(); i != obj.end(); i++) {
+		Light *l = PPtr<Light> (*i);
+		l->SetupHalo ();
+		l->SetupFlare ();
+	}
+}
+
+void RenderSettings::CheckConsistency () {
+	m_FogDensity = std::min (std::max (m_FogDensity, 0.0f), 1.0f);
+	m_HaloStrength = std::min (std::max (m_HaloStrength, 0.0f), 1.0f);
+}
+
+void RenderSettings::ApplyHaloTexture()
+{
+	Texture2D *tex = m_HaloTexture;	
+	ShaderLab::g_GlobalProperties->SetTexture (kSLPropHaloFalloff, tex?tex:builtintex::GetHaloTexture());
+}
+
+void RenderSettings::ApplyFog ()
+{
+	BuiltinShaderParamValues& params = GetGfxDevice().GetBuiltinParamValues();
+	ShaderLab::g_GlobalFogMode = m_Fog ? static_cast<FogMode>(m_FogMode) : kFogDisabled;
+	float fogDensity = m_FogDensity;
+	float fogStart = m_LinearFogStart;
+	float fogEnd = m_LinearFogEnd;
+	if (ShaderLab::g_GlobalFogMode == kFogDisabled)
+	{
+		fogDensity = 0.0f;
+		fogStart = 10000.0f;
+		fogEnd = 20000.0f;
+	}
+
+	params.SetVectorParam(kShaderVecUnityFogStart, Vector4f(fogStart, fogStart, fogStart, fogStart));
+	params.SetVectorParam(kShaderVecUnityFogEnd, Vector4f(fogEnd, fogEnd, fogEnd, fogEnd));
+	params.SetVectorParam(kShaderVecUnityFogDensity, Vector4f(fogDensity, fogDensity, fogDensity, fogDensity));
+	
+	ColorRGBAf fogColor = GammaToActiveColorSpace(m_FogColor);
+	params.SetVectorParam(kShaderVecUnityFogColor, Vector4f(fogColor.GetPtr()));
+	
+}
+
+template<class TransferFunc>
+void RenderSettings::Transfer (TransferFunc& transfer) {
+	TRANSFER_SIMPLE (m_Fog);	
+	transfer.Align();	
+	TRANSFER_SIMPLE (m_FogColor);
+	TRANSFER_SIMPLE (m_FogMode);
+	TRANSFER_SIMPLE (m_FogDensity);
+	TRANSFER_SIMPLE (m_LinearFogStart);
+	TRANSFER_SIMPLE (m_LinearFogEnd);
+	TRANSFER_SIMPLE (m_AmbientLight);
+	TRANSFER_SIMPLE (m_SkyboxMaterial);
+	TRANSFER (m_HaloStrength);
+	TRANSFER (m_FlareStrength);
+	TRANSFER (m_FlareFadeSpeed);
+	TRANSFER (m_HaloTexture);
+	TRANSFER (m_SpotCookie);
+	Super::Transfer (transfer);
+}
+
+void RenderSettings::InitializeClass ()
+{
+	RegisterAllowNameConversion(GetClassStringStatic (), "m_Ambient", "m_AmbientLight");
+	LightManager::InitializeClass();
+}
+
+void RenderSettings::PostInitializeClass ()
+{
+	builtintex::GenerateBuiltinTextures();
+}
+
+void RenderSettings::CleanupClass()
+{
+	LightManager::CleanupClass();
+}
+
+void RenderSettings::SetSkyboxMaterial (Material *mat) {
+	m_SkyboxMaterial = mat;
+	SetDirty();	
+}
+
+void RenderSettings::SetFogColor (const ColorRGBAf& color)
+{
+	m_FogColor = color;
+	SetDirty();
+	ApplyFog ();
+}
+
+void RenderSettings::SetUseFog (bool fog)
+{
+	m_Fog = fog;
+	SetDirty();
+	ApplyFog ();
+} 
+
+void RenderSettings::SetUseFogNoDirty (bool fog)
+{
+	m_Fog = fog;
+	ApplyFog ();
+} 
+
+void RenderSettings::SetFogMode (FogMode fm)
+{
+	m_FogMode = fm;
+	SetDirty();
+	ApplyFog ();
+} 
+
+void RenderSettings::SetFogDensity (float fog)
+{
+	m_FogDensity = fog;
+	SetDirty();
+	ApplyFog ();
+}
+
+void RenderSettings::SetLinearFogStart (float d)
+{
+	m_LinearFogStart = d;
+	SetDirty();
+	ApplyFog ();
+}
+
+void RenderSettings::SetLinearFogEnd (float d)
+{
+	m_LinearFogEnd = d;
+	SetDirty();
+	ApplyFog ();
+}
+
+void RenderSettings::SetAmbientLight (const ColorRGBAf &col)
+{
+	m_AmbientLight = col;
+	ApplyFog ();
+	SetDirty();
+}
+
+#if UNITY_EDITOR
+void RenderSettings::SetAmbientLightNoDirty (const ColorRGBAf &col)
+{
+	m_AmbientLight = col;
+	ApplyFog ();
+}
+#endif
+
+void RenderSettings::SetFlareStrength (float flare)
+{
+	m_FlareStrength = flare;
+	SetDirty();
+	ApplyFlareAndHaloStrength();
+}
+
+void RenderSettings::SetFlareFadeSpeed (float time)
+{
+	m_FlareFadeSpeed = time;
+	SetDirty();
+	ApplyFlareAndHaloStrength();
+}
+
+void RenderSettings::SetHaloStrength (float halo)
+{
+	m_HaloStrength = halo;
+	SetDirty();
+	ApplyFlareAndHaloStrength();
+}
+
+IMPLEMENT_CLASS_HAS_POSTINIT (RenderSettings)
+IMPLEMENT_OBJECT_SERIALIZE (RenderSettings)
+GET_MANAGER (RenderSettings)