Initial commit with PS4 and XBone stuff trimmed.

1 files changed, 117 insertions, 0 deletions

diff --git a/src/shader/CalcGradient.fx b/src/shader/CalcGradient.fx
new file mode 100644
index 0000000..e66e75f
--- /dev/null
+++ b/src/shader/CalcGradient.fx
@@ -0,0 +1,117 @@
+// This code contains NVIDIA Confidential Information and is disclosed 
+// under the Mutual Non-Disclosure Agreement. 
+// 
+// Notice 
+// ALL NVIDIA DESIGN SPECIFICATIONS AND CODE ("MATERIALS") ARE PROVIDED "AS IS" NVIDIA MAKES 
+// NO REPRESENTATIONS, WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO 
+// THE MATERIALS, AND EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTIES OF NONINFRINGEMENT, 
+// MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. 
+// 
+// NVIDIA Corporation assumes no responsibility for the consequences of use of such 
+// information or for any infringement of patents or other rights of third parties that may 
+// result from its use. No license is granted by implication or otherwise under any patent 
+// or patent rights of NVIDIA Corporation. No third party distribution is allowed unless 
+// expressly authorized by NVIDIA.  Details are subject to change without notice. 
+// This code supersedes and replaces all information previously supplied. 
+// NVIDIA Corporation products are not authorized for use as critical 
+// components in life support devices or systems without express written approval of 
+// NVIDIA Corporation. 
+// 
+// Copyright � 2008- 2013 NVIDIA Corporation. All rights reserved.
+//
+// NVIDIA Corporation and its licensors retain all intellectual property and proprietary
+// rights in and to this software and related documentation and any modifications thereto.
+// Any use, reproduction, disclosure or distribution of this software and related
+// documentation without an express license agreement from NVIDIA Corporation is
+// strictly prohibited.
+//
+
+#include "Common.fxh"
+
+#ifdef GFSDK_WAVEWORKS_GL
+#define DECLARE_ATTR_CONSTANT(Type,Label,Regoff) uniform Type Label
+#define DECLARE_ATTR_SAMPLER(Label,TextureLabel,Regoff) \
+	uniform sampler2D TextureLabel
+#else
+#define DECLARE_ATTR_CONSTANT(Type,Label,Regoff) Type Label : register(c##Regoff)
+#define DECLARE_ATTR_SAMPLER(Label,TextureLabel,Regoff) \
+	Texture2D Label : register(t##Regoff);	\
+	SamplerState TextureLabel : register(s##Regoff)
+#endif
+
+//------------------------------------------------------------------------------------
+// Global variables
+//------------------------------------------------------------------------------------
+
+BEGIN_CBUFFER(nvsf_globals,0)
+DECLARE_ATTR_CONSTANT(float4,nvsf_g_Scales,        0); // was: float nvsf_g_ChoppyScale, nvsf_g_GradMap2TexelWSScale
+DECLARE_ATTR_CONSTANT(float4,nvsf_g_OneTexel_Left, 1);
+DECLARE_ATTR_CONSTANT(float4,nvsf_g_OneTexel_Right,2);
+DECLARE_ATTR_CONSTANT(float4,nvsf_g_OneTexel_Back, 3);
+DECLARE_ATTR_CONSTANT(float4,nvsf_g_OneTexel_Front,4);
+END_CBUFFER
+
+DECLARE_ATTR_SAMPLER(nvsf_g_textureDisplacementMap,nvsf_g_samplerDisplacementMap,0);
+
+#ifdef GFSDK_WAVEWORKS_GL
+varying float2 nvsf_vInterpTexCoord;
+#endif
+
+#ifndef GFSDK_WAVEWORKS_OMIT_VS
+
+#ifdef GFSDK_WAVEWORKS_GL
+attribute float4 nvsf_vInPos;
+attribute float2 nvsf_vInTexCoord;
+#define nvsf_vOutPos gl_Position
+void main()
+#else
+void vs(
+	float4 nvsf_vInPos SEMANTIC(POSITION),
+	float2 nvsf_vInTexCoord SEMANTIC(TEXCOORD0),
+	out float2 nvsf_vInterpTexCoord SEMANTIC(TEXCOORD0),
+	out float4 nvsf_vOutPos SEMANTIC(SV_Position)
+)
+#endif
+{
+    // No need to do matrix transform.
+    nvsf_vOutPos = nvsf_vInPos;
+    
+	// Pass through general texture coordinate.
+    nvsf_vInterpTexCoord = nvsf_vInTexCoord;
+}
+
+#endif // !GFSDK_WAVEWORKS_OMIT_VS
+
+
+#ifndef GFSDK_WAVEWORKS_OMIT_PS
+
+#ifdef GFSDK_WAVEWORKS_GL
+#define nvsf_Output gl_FragColor
+void main()
+#else
+void ps(
+	float2 nvsf_vInterpTexCoord SEMANTIC(TEXCOORD0),
+	out float4 nvsf_Output SEMANTIC(SV_Target)
+)
+#endif
+{
+	// Sample neighbour texels
+	float3 nvsf_displace_left	= SampleTex2D(nvsf_g_textureDisplacementMap, nvsf_g_samplerDisplacementMap, nvsf_vInterpTexCoord.xy + nvsf_g_OneTexel_Left.xy).rgb;
+	float3 nvsf_displace_right	= SampleTex2D(nvsf_g_textureDisplacementMap, nvsf_g_samplerDisplacementMap, nvsf_vInterpTexCoord.xy + nvsf_g_OneTexel_Right.xy).rgb;
+	float3 nvsf_displace_back	= SampleTex2D(nvsf_g_textureDisplacementMap, nvsf_g_samplerDisplacementMap, nvsf_vInterpTexCoord.xy + nvsf_g_OneTexel_Back.xy).rgb;
+	float3 nvsf_displace_front	= SampleTex2D(nvsf_g_textureDisplacementMap, nvsf_g_samplerDisplacementMap, nvsf_vInterpTexCoord.xy + nvsf_g_OneTexel_Front.xy).rgb;
+	
+	// -------- Do not store the actual normal value, instead, it preserves two differential values.
+	float2 nvsf_gradient = float2(-(nvsf_displace_right.z - nvsf_displace_left.z) / max(0.01,1.0 + nvsf_g_Scales.y*(nvsf_displace_right.x - nvsf_displace_left.x)), -(nvsf_displace_front.z - nvsf_displace_back.z) / max(0.01,1.0+nvsf_g_Scales.y*(nvsf_displace_front.y - nvsf_displace_back.y)));
+	//float2 nvsf_gradient = {-(nvsf_displace_right.z - nvsf_displace_left.z), -(nvsf_displace_front.z - nvsf_displace_back.z) };
+	
+	// Calculate Jacobian corelation from the partial differential of displacement field
+	float2 nvsf_Dx = (nvsf_displace_right.xy - nvsf_displace_left.xy) * nvsf_g_Scales.x;
+	float2 nvsf_Dy = (nvsf_displace_front.xy - nvsf_displace_back.xy) * nvsf_g_Scales.x;
+	float nvsf_J = (1.0f + nvsf_Dx.x) * (1.0f + nvsf_Dy.y) - nvsf_Dx.y * nvsf_Dy.x;
+
+	// Output
+	nvsf_Output = float4(nvsf_gradient, nvsf_J, 0);
+}
+
+#endif // !GFSDK_WAVEWORKS_OMIT_PS