111 lines
3.2 KiB
GLSL
111 lines
3.2 KiB
GLSL
#version 310 es
|
|
|
|
struct PatchData
|
|
{
|
|
vec4 Position;
|
|
vec4 LODs;
|
|
};
|
|
|
|
layout(binding = 0, std140) uniform PerPatch
|
|
{
|
|
PatchData Patches[256];
|
|
} _53;
|
|
|
|
layout(binding = 2, std140) uniform GlobalGround
|
|
{
|
|
vec4 GroundScale;
|
|
vec4 GroundPosition;
|
|
vec4 InvGroundSize_PatchScale;
|
|
} _156;
|
|
|
|
layout(binding = 0, std140) uniform GlobalVSData
|
|
{
|
|
vec4 g_ViewProj_Row0;
|
|
vec4 g_ViewProj_Row1;
|
|
vec4 g_ViewProj_Row2;
|
|
vec4 g_ViewProj_Row3;
|
|
vec4 g_CamPos;
|
|
vec4 g_CamRight;
|
|
vec4 g_CamUp;
|
|
vec4 g_CamFront;
|
|
vec4 g_SunDir;
|
|
vec4 g_SunColor;
|
|
vec4 g_TimeParams;
|
|
vec4 g_ResolutionParams;
|
|
vec4 g_CamAxisRight;
|
|
vec4 g_FogColor_Distance;
|
|
vec4 g_ShadowVP_Row0;
|
|
vec4 g_ShadowVP_Row1;
|
|
vec4 g_ShadowVP_Row2;
|
|
vec4 g_ShadowVP_Row3;
|
|
} _236;
|
|
|
|
layout(binding = 1) uniform mediump sampler2D TexLOD;
|
|
layout(binding = 0) uniform mediump sampler2D TexHeightmap;
|
|
|
|
layout(location = 1) in vec4 LODWeights;
|
|
uniform int SPIRV_Cross_BaseInstance;
|
|
layout(location = 0) in vec2 Position;
|
|
layout(location = 1) out vec3 EyeVec;
|
|
layout(location = 0) out vec2 TexCoord;
|
|
|
|
vec2 warp_position()
|
|
{
|
|
float vlod = dot(LODWeights, _53.Patches[(gl_InstanceID + SPIRV_Cross_BaseInstance)].LODs);
|
|
vlod = all(equal(LODWeights, vec4(0.0))) ? _53.Patches[(gl_InstanceID + SPIRV_Cross_BaseInstance)].Position.w : vlod;
|
|
float floor_lod = floor(vlod);
|
|
float fract_lod = vlod - floor_lod;
|
|
uint ufloor_lod = uint(floor_lod);
|
|
uvec2 uPosition = uvec2(Position);
|
|
uvec2 mask = (uvec2(1u) << uvec2(ufloor_lod, ufloor_lod + 1u)) - uvec2(1u);
|
|
uint _110;
|
|
if (uPosition.x < 32u)
|
|
{
|
|
_110 = mask.x;
|
|
}
|
|
else
|
|
{
|
|
_110 = 0u;
|
|
}
|
|
uint _116 = _110;
|
|
uint _120;
|
|
if (uPosition.y < 32u)
|
|
{
|
|
_120 = mask.y;
|
|
}
|
|
else
|
|
{
|
|
_120 = 0u;
|
|
}
|
|
uvec2 rounding = uvec2(_116, _120);
|
|
vec4 lower_upper_snapped = vec4((uPosition + rounding).xyxy & (~mask).xxyy);
|
|
return mix(lower_upper_snapped.xy, lower_upper_snapped.zw, vec2(fract_lod));
|
|
}
|
|
|
|
vec2 lod_factor(vec2 uv)
|
|
{
|
|
float level = textureLod(TexLOD, uv, 0.0).x * 7.96875;
|
|
float floor_level = floor(level);
|
|
float fract_level = level - floor_level;
|
|
return vec2(floor_level, fract_level);
|
|
}
|
|
|
|
void main()
|
|
{
|
|
vec2 PatchPos = _53.Patches[(gl_InstanceID + SPIRV_Cross_BaseInstance)].Position.xz * _156.InvGroundSize_PatchScale.zw;
|
|
vec2 WarpedPos = warp_position();
|
|
vec2 VertexPos = PatchPos + WarpedPos;
|
|
vec2 NormalizedPos = VertexPos * _156.InvGroundSize_PatchScale.xy;
|
|
vec2 param = NormalizedPos;
|
|
vec2 lod = lod_factor(param);
|
|
vec2 Offset = _156.InvGroundSize_PatchScale.xy * exp2(lod.x);
|
|
float Elevation = mix(textureLod(TexHeightmap, NormalizedPos + (Offset * 0.5), lod.x).x, textureLod(TexHeightmap, NormalizedPos + (Offset * 1.0), lod.x + 1.0).x, lod.y);
|
|
vec3 WorldPos = vec3(NormalizedPos.x, Elevation, NormalizedPos.y);
|
|
WorldPos *= _156.GroundScale.xyz;
|
|
WorldPos += _156.GroundPosition.xyz;
|
|
EyeVec = WorldPos - _236.g_CamPos.xyz;
|
|
TexCoord = NormalizedPos + (_156.InvGroundSize_PatchScale.xy * 0.5);
|
|
gl_Position = (((_236.g_ViewProj_Row0 * WorldPos.x) + (_236.g_ViewProj_Row1 * WorldPos.y)) + (_236.g_ViewProj_Row2 * WorldPos.z)) + _236.g_ViewProj_Row3;
|
|
}
|
|
|