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diff --git a/src/shader/Quadtree.fxh b/src/shader/Quadtree.fxh
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-/*
- * 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"
-
-/*
- *
- *
- */
-
-#if defined(GFSDK_WAVEWORKS_SM3) || defined(GFSDK_WAVEWORKS_GL)
- #define GFSDK_WAVEWORKS_BEGIN_GEOM_VS_CBUFFER(Label)
- #define GFSDK_WAVEWORKS_END_GEOM_VS_CBUFFER
-#endif
-
-#if defined( GFSDK_WAVEWORKS_USE_TESSELLATION )
- GFSDK_WAVEWORKS_BEGIN_GEOM_HS_CBUFFER(nvsf_eyepos_buffer)
- GFSDK_WAVEWORKS_DECLARE_GEOM_HS_CONSTANT(float4, nvsf_g_hsWorldEye, 0)
- GFSDK_WAVEWORKS_DECLARE_GEOM_HS_CONSTANT(float4, nvsf_g_tessellationParams, 1)
- GFSDK_WAVEWORKS_END_GEOM_HS_CBUFFER
-#endif
-
-GFSDK_WAVEWORKS_BEGIN_GEOM_VS_CBUFFER(nvsf_geom_buffer)
-GFSDK_WAVEWORKS_DECLARE_GEOM_VS_CONSTANT(float4x3, nvsf_g_matLocalWorld, 0)
-GFSDK_WAVEWORKS_DECLARE_GEOM_VS_CONSTANT(float4, nvsf_g_vsEyePos, 3)
-GFSDK_WAVEWORKS_DECLARE_GEOM_VS_CONSTANT(float4, nvsf_g_MorphParam, 4)
-GFSDK_WAVEWORKS_END_GEOM_VS_CBUFFER
-
-
-struct GFSDK_WAVEWORKS_VERTEX_INPUT
-{
- float4 nvsf_vPos SEMANTIC(POSITION);
-};
-
-#if !defined(GFSDK_WAVEWORKS_USE_TESSELLATION)
-float3 GFSDK_WaveWorks_GetUndisplacedVertexWorldPosition(GFSDK_WAVEWORKS_VERTEX_INPUT In)
-{
- float2 nvsf_vpos = In.nvsf_vPos.xy;
-
- // Use multiple levels of geo-morphing to smooth away LOD boundaries
- float nvsf_geomorph_scale = 0.25f;
-
- float2 nvsf_geomorph_offset = float2(nvsf_g_MorphParam.w,nvsf_g_MorphParam.w);
- float2 nvsf_vpos_src = nvsf_vpos;
- float2 nvsf_vpos_target = nvsf_vpos_src;
- float nvsf_geomorph_amount = 0.f;
-
- for(int nvsf_geomorph_level = 0; nvsf_geomorph_level != 4; ++nvsf_geomorph_level) {
-
- float2 nvsf_intpart;
- float2 nvsf_rempart = modf(nvsf_geomorph_scale*nvsf_vpos_src.xy,nvsf_intpart);
-
- float2 nvsf_mirror = float2(1.0f, 1.0f);
-
- if(nvsf_rempart.x > 0.5f)
- {
- nvsf_rempart.x = 1.0f - nvsf_rempart.x;
- nvsf_mirror.x = -nvsf_mirror.x;
- }
- if(nvsf_rempart.y > 0.5f)
- {
- nvsf_rempart.y = 1.0f - nvsf_rempart.y;
- nvsf_mirror.y = -nvsf_mirror.y;
- }
-
-
- if(0.25f == nvsf_rempart.x && 0.25f == nvsf_rempart.y) nvsf_vpos_target.xy = nvsf_vpos_src.xy - nvsf_geomorph_offset*nvsf_mirror;
- else if(0.25f == nvsf_rempart.x) nvsf_vpos_target.x = nvsf_vpos_src.x + nvsf_geomorph_offset.x*nvsf_mirror.x;
- else if(0.25f == nvsf_rempart.y) nvsf_vpos_target.y = nvsf_vpos_src.y + nvsf_geomorph_offset.y*nvsf_mirror.y;
-
- float3 nvsf_eyevec = mul(float4(nvsf_vpos_target,0.f,1.f), nvsf_g_matLocalWorld) - nvsf_g_vsEyePos.xyz;
- float nvsf_d = length(nvsf_eyevec);
- float nvsf_geomorph_target_level = log2(nvsf_d * nvsf_g_MorphParam.x) + 1.f;
- nvsf_geomorph_amount = saturate(2.0*(nvsf_geomorph_target_level - float(nvsf_geomorph_level)));
- if(nvsf_geomorph_amount < 1.f)
- {
- break;
- }
- else
- {
- nvsf_vpos_src = nvsf_vpos_target;
- nvsf_geomorph_scale *= 0.5f;
- nvsf_geomorph_offset *= -2.f;
- }
- }
-
- nvsf_vpos.xy = lerp(nvsf_vpos_src, nvsf_vpos_target, nvsf_geomorph_amount);
- return mul(float4(nvsf_vpos,In.nvsf_vPos.zw), nvsf_g_matLocalWorld);
-}
-#endif
-
-
-#if defined(GFSDK_WAVEWORKS_USE_TESSELLATION)
-float3 GFSDK_WaveWorks_GetUndisplacedVertexWorldPosition(GFSDK_WAVEWORKS_VERTEX_INPUT In)
-{
- float2 nvsf_vpos = In.nvsf_vPos.xy;
- // Use multiple levels of geo-morphing to smooth away LOD boundaries
- float nvsf_geomorph_scale = 0.5f;
- float nvsf_geomorph_offset = abs(nvsf_g_MorphParam.w);
- float2 nvsf_vpos_src = nvsf_vpos;
- float2 nvsf_vpos_target = nvsf_vpos_src;
- float nvsf_geomorph_amount = 0.f;
-
- //nvsf_vpos_target.x += 0.25*nvsf_geomorph_offset;
- //nvsf_vpos_src.x += 0.25*nvsf_geomorph_offset;
-
- for(int nvsf_geomorph_level = 0; nvsf_geomorph_level != 4; ++nvsf_geomorph_level) {
-
- float2 nvsf_intpart;
- float2 nvsf_rempart = modf(nvsf_geomorph_scale*nvsf_vpos_src.xy,nvsf_intpart);
- if(0.5f == nvsf_rempart.x)
- {
- nvsf_vpos_target.x = nvsf_vpos_src.x + nvsf_geomorph_offset;
- }
-
- if(0.5f == nvsf_rempart.y)
- {
- nvsf_vpos_target.y = nvsf_vpos_src.y + nvsf_geomorph_offset;
- }
-
- float3 nvsf_eyevec = mul(float4(nvsf_vpos_target,0.f,1.f), nvsf_g_matLocalWorld) - nvsf_g_vsEyePos.xyz;
- float nvsf_d = length(nvsf_eyevec);
- float nvsf_geomorph_target_level = log2(nvsf_d * nvsf_g_MorphParam.x) + 1.f;
- nvsf_geomorph_amount = saturate(3.0*(nvsf_geomorph_target_level - float(nvsf_geomorph_level)));
- if(nvsf_geomorph_amount < 1.f) {
- break;
- } else {
- nvsf_vpos_src = nvsf_vpos_target;
- nvsf_geomorph_scale *= 0.5f;
- nvsf_geomorph_offset *= 2.f;
- }
- }
- nvsf_vpos.xy = lerp(nvsf_vpos_src, nvsf_vpos_target, nvsf_geomorph_amount);
- return mul(float4(nvsf_vpos,In.nvsf_vPos.zw), nvsf_g_matLocalWorld);
-}
-
-float GFSDK_WaveWorks_GetEdgeTessellationFactor(float4 vertex1, float4 vertex2)
-{
- float3 nvsf_edge_center = 0.5*(vertex1.xyz + vertex2.xyz);
- float nvsf_edge_length = length (vertex1.xyz - vertex2.xyz);
- float nvsf_edge_distance = length(nvsf_g_hsWorldEye.xyz - nvsf_edge_center.xyz);
- return nvsf_g_tessellationParams.x * nvsf_edge_length / nvsf_edge_distance;
-}
-
-float GFSDK_WaveWorks_GetVertexTargetTessellatedEdgeLength(float3 vertex)
-{
- float nvsf_vertex_distance = length(nvsf_g_hsWorldEye.xyz - vertex.xyz);
- return nvsf_vertex_distance / nvsf_g_tessellationParams.x;
-}
-
-#endif
-
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