76 lines
1.7 KiB
Plaintext
76 lines
1.7 KiB
Plaintext
// OBS Default
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uniform float4x4 ViewProj;
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// Inputs
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uniform texture2d _sdf;
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uniform texture2d _image;
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uniform float _inner_min;
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uniform float _inner_max;
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uniform float2 _inner_offset;
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uniform float4 _inner_color;
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uniform float _outer_min;
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uniform float _outer_max;
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uniform float2 _outer_offset;
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uniform float4 _outer_color;
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uniform float _threshold;
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#define NEAR_INFINITE 18446744073709551616.0
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sampler_state sdfSampler {
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Filter = Trilinear;
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AddressU = Clamp;
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AddressV = Clamp;
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};
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sampler_state imageSampler {
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Filter = Trilinear;
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AddressU = Clamp;
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AddressV = Clamp;
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};
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struct VertDataIn {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct VertDataOut {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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VertDataOut VSDefault(VertDataIn v_in)
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{
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VertDataOut vert_out;
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vert_out.pos = mul(float4(v_in.pos.xyz, 1.0), ViewProj);
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vert_out.uv = v_in.uv;
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return vert_out;
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}
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float4 PS_SDFShadow_v1(VertDataOut v_in) : TARGET
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{
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float4 final = _image.Sample(imageSampler, v_in.uv);
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if (_inner_max > 0 && final.a >= _threshold) {
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float inner_dist = _sdf.Sample(sdfSampler, v_in.uv + _inner_offset).g;
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float range = (_inner_max - _inner_min);
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float str = clamp(inner_dist - _inner_min, 0, range) / range;
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final = lerp(_inner_color, final, str);
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}
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if (_outer_max > 0 && final.a < _threshold) {
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float outer_dist = _sdf.Sample(sdfSampler, v_in.uv + _outer_offset).r;
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float range = (_outer_max - _outer_min);
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float str = clamp(outer_dist - _outer_min, 0, range) / range;
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final = lerp(_outer_color, float4(_outer_color.r, _outer_color.g, _outer_color.b, 0.0), str);
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}
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return final;
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}
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technique Draw
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{
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pass
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{
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vertex_shader = VSDefault(v_in);
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pixel_shader = PS_SDFShadow_v1(v_in);
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}
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}
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