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https://github.com/Xaymar/obs-StreamFX
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filter-shadow-sdf: Inner/Outer shadow based on signed distance fields
Adds Inner/Outer Shadows for dynamic sources based on signed distance field generation. This is fast, but does add a bit of latency when it comes to updates - which means that moving objects will leave a trail before the generator has a chance to update. Fixes #3
This commit is contained in:
parent
c0cb20300b
commit
0c92f3dbf5
6 changed files with 844 additions and 1 deletions
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@ -203,6 +203,7 @@ SET(PROJECT_DATA_EFFECTS
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"${PROJECT_SOURCE_DIR}/data/effects/mask.effect"
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"${PROJECT_SOURCE_DIR}/data/effects/mip-mapper.effect"
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"${PROJECT_SOURCE_DIR}/data/effects/mipgen.effect"
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"${PROJECT_SOURCE_DIR}/data/effects/sdf-generator.effect"
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)
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SET(PROJECT_DATA_SHADERS
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# "${PROJECT_SOURCE_DIR}/data/shaders/name.effect"
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@ -225,6 +226,8 @@ SET(PROJECT_PRIVATE
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"${PROJECT_SOURCE_DIR}/source/filter-displacement.cpp"
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"${PROJECT_SOURCE_DIR}/source/filter-blur.h"
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"${PROJECT_SOURCE_DIR}/source/filter-blur.cpp"
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"${PROJECT_SOURCE_DIR}/source/filter-shadow-sdf.hpp"
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"${PROJECT_SOURCE_DIR}/source/filter-shadow-sdf.cpp"
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"${PROJECT_SOURCE_DIR}/source/filter-shape.h"
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"${PROJECT_SOURCE_DIR}/source/filter-shape.cpp"
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"${PROJECT_SOURCE_DIR}/source/filter-transform.h"
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119
data/effects/sdf-generator.effect
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119
data/effects/sdf-generator.effect
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@ -0,0 +1,119 @@
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// OBS Default
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uniform float4x4 ViewProj;
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// Inputs
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uniform texture2d _image;
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uniform float2 _size;
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uniform texture2d _sdf; // in, out - swap rendering
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uniform float _threshold;
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#define NEAR_INFINITE 18446744073709551616.0
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#define RANGE 4
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sampler_state sdfSampler {
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Filter = Point;
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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 = Point;
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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_SDFGenerator_v1(VertDataOut v_in) : TARGET
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{
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float4 outval = float4(0.0, 0.0, v_in.uv.x, v_in.uv.y);
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// utility values
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float2 uv_step = 1.0 / _size;
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float lowest = NEAR_INFINITE;
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float2 lowest_source = float2(NEAR_INFINITE, NEAR_INFINITE);
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float2 lowest_origin = float2(NEAR_INFINITE, NEAR_INFINITE);
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// inputs
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float imageA = _image.Sample(imageSampler, v_in.uv).a;
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// sdf contains 4 values: R = Positive Distance, G = Negative Distance, BA = UV of nearest edge.
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if (imageA > _threshold) {
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// Inside
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// TODO: Optimize to be O(n*n) instead of (2n*2n)
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for (int x = -RANGE; x < RANGE; x++) {
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for (int y = -RANGE; y < RANGE; y++) {
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if ((x == 0) && (y == 0)) {
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continue;
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}
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float2 dtr = float2(x, y);
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float2 dt = uv_step * dtr;
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float4 here = _sdf.Sample(sdfSampler, v_in.uv + dt);
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float dst = abs(distance(float2(0., 0.), dtr));
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if (lowest > (here.g + dst)) {
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lowest = here.g + dst;
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lowest_source = v_in.uv + dt;
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lowest_origin = here.ba;
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}
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}
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}
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if (lowest < NEAR_INFINITE) {
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outval.g = lowest;
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outval.ba = lowest_origin;
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}
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} else {
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// Outside
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// TODO: Optimize to be O(n*n) instead of (2n*2n)
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for (int x = -RANGE; x < RANGE; x++) {
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for (int y = -RANGE; y < RANGE; y++) {
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if ((x == 0) && (y == 0)) {
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continue;
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}
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float2 dtr = float2(x, y);
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float2 dt = uv_step * dtr;
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float4 here = _sdf.Sample(sdfSampler, v_in.uv + dt);
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float dst = abs(distance(float2(0., 0.), dtr));
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if (lowest > (here.r + dst)) {
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lowest = here.r + dst;
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lowest_source = v_in.uv + dt;
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lowest_origin = here.ba;
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}
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}
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}
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if (lowest < NEAR_INFINITE) {
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outval.r = lowest;
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outval.ba = lowest_origin;
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}
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}
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return outval;
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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_SDFGenerator_v1(v_in);
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}
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}
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75
data/effects/sdf-shadow.effect
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75
data/effects/sdf-shadow.effect
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@ -0,0 +1,75 @@
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// 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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@ -85,7 +85,6 @@ Filter.Blur.Mask.Alpha.Description="Filter the mask by this alpha value before a
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Filter.Blur.Mask.Multiplier="Mask Multiplier"
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Filter.Blur.Mask.Multiplier.Description="Multiply the final mask value by this value."
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# Filter - Custom Shader
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Filter.CustomShader="Custom Shader"
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Filter.CustomShader.Type="Type"
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@ -101,6 +100,25 @@ Filter.Displacement.File.Types="Images (*.png *.jpeg *.jpg *.bmp *.tga);;All Fil
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Filter.Displacement.Ratio="Ratio"
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Filter.Displacement.Scale="Scale"
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# Filter - Shadow (SDF)
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Filter.ShadowSDF="Inner/Outer Shadow (SDF)"
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Filter.ShadowSDF.Inner="Inner Shadow"
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Filter.ShadowSDF.Inner.Description="Draw a shadow on the inside of the source?"
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Filter.ShadowSDF.Inner.Range.Minimum="Inner Minimum Distance"
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Filter.ShadowSDF.Inner.Range.Maximum="Inner Maximum Distance"
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Filter.ShadowSDF.Inner.Offset.X="Inner Offset X"
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Filter.ShadowSDF.Inner.Offset.Y="Inner Offset Y"
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Filter.ShadowSDF.Inner.Color="Inner Color"
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Filter.ShadowSDF.Inner.Alpha="Inner Alpha"
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Filter.ShadowSDF.Outer="Outer Shadow"
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Filter.ShadowSDF.Outer.Description="Draw a shadow on the outside of the source?"
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Filter.ShadowSDF.Outer.Range.Minimum="Outer Minimum Distance"
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Filter.ShadowSDF.Outer.Range.Maximum="Outer Maximum Distance"
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Filter.ShadowSDF.Outer.Offset.X="Outer Offset X"
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Filter.ShadowSDF.Outer.Offset.Y="Outer Offset Y"
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Filter.ShadowSDF.Outer.Color="Outer Color"
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Filter.ShadowSDF.Outer.Alpha="Outer Alpha"
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# Filter - Shape
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Filter.Shape="Shape"
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Filter.Shape.Loop="Repeat last Point"
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500
source/filter-shadow-sdf.cpp
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500
source/filter-shadow-sdf.cpp
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/*
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* Modern effects for a modern Streamer
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* Copyright (C) 2017-2018 Michael Fabian Dirks
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "filter-shadow-sdf.hpp"
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#include "strings.h"
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// Translation Strings
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#define SOURCE_NAME "Filter.ShadowSDF"
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#define P_INNER "Filter.ShadowSDF.Inner"
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#define P_INNER_RANGE_MINIMUM "Filter.ShadowSDF.Inner.Range.Minimum"
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#define P_INNER_RANGE_MAXIMUM "Filter.ShadowSDF.Inner.Range.Maximum"
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#define P_INNER_OFFSET_X "Filter.ShadowSDF.Inner.Offset.X"
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#define P_INNER_OFFSET_Y "Filter.ShadowSDF.Inner.Offset.Y"
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#define P_INNER_COLOR "Filter.ShadowSDF.Inner.Color"
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#define P_INNER_ALPHA "Filter.ShadowSDF.Inner.Alpha"
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#define P_OUTER "Filter.ShadowSDF.Outer"
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#define P_OUTER_RANGE_MINIMUM "Filter.ShadowSDF.Outer.Range.Minimum"
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#define P_OUTER_RANGE_MAXIMUM "Filter.ShadowSDF.Outer.Range.Maximum"
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#define P_OUTER_OFFSET_X "Filter.ShadowSDF.Outer.Offset.X"
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#define P_OUTER_OFFSET_Y "Filter.ShadowSDF.Outer.Offset.Y"
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#define P_OUTER_COLOR "Filter.ShadowSDF.Outer.Color"
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#define P_OUTER_ALPHA "Filter.ShadowSDF.Outer.Alpha"
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// Initializer & Finalizer
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INITIALIZER(filterShadowFactoryInitializer)
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{
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initializerFunctions.push_back([] { filter::shadow_sdf::shadow_sdf_factory::initialize(); });
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finalizerFunctions.push_back([] { filter::shadow_sdf::shadow_sdf_factory::finalize(); });
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}
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bool filter::shadow_sdf::shadow_sdf_instance::cb_modified_inside(void*, obs_properties_t* props, obs_property*,
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obs_data_t* settings)
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{
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bool v = obs_data_get_bool(settings, P_INNER);
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obs_property_set_visible(obs_properties_get(props, P_INNER_RANGE_MINIMUM), v);
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obs_property_set_visible(obs_properties_get(props, P_INNER_RANGE_MAXIMUM), v);
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obs_property_set_visible(obs_properties_get(props, P_INNER_OFFSET_X), v);
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obs_property_set_visible(obs_properties_get(props, P_INNER_OFFSET_Y), v);
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obs_property_set_visible(obs_properties_get(props, P_INNER_COLOR), v);
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obs_property_set_visible(obs_properties_get(props, P_INNER_ALPHA), v);
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return true;
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}
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bool filter::shadow_sdf::shadow_sdf_instance::cb_modified_outside(void*, obs_properties_t* props, obs_property*,
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obs_data_t* settings)
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{
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bool v = obs_data_get_bool(settings, P_OUTER);
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obs_property_set_visible(obs_properties_get(props, P_OUTER_RANGE_MINIMUM), v);
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obs_property_set_visible(obs_properties_get(props, P_OUTER_RANGE_MAXIMUM), v);
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obs_property_set_visible(obs_properties_get(props, P_OUTER_OFFSET_X), v);
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obs_property_set_visible(obs_properties_get(props, P_OUTER_OFFSET_Y), v);
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obs_property_set_visible(obs_properties_get(props, P_OUTER_COLOR), v);
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obs_property_set_visible(obs_properties_get(props, P_OUTER_ALPHA), v);
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return true;
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}
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filter::shadow_sdf::shadow_sdf_instance::shadow_sdf_instance(obs_data_t* settings, obs_source_t* self)
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{
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this->m_self = self;
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this->m_input = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
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this->m_sdf_write = std::make_shared<gs::rendertarget>(GS_RGBA32F, GS_ZS_NONE);
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{
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auto op = this->m_sdf_write->render(1, 1);
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}
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this->m_sdf_read = std::make_shared<gs::rendertarget>(GS_RGBA32F, GS_ZS_NONE);
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{
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auto op = this->m_sdf_read->render(1, 1);
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}
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this->update(settings);
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}
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filter::shadow_sdf::shadow_sdf_instance::~shadow_sdf_instance() {}
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obs_properties_t* filter::shadow_sdf::shadow_sdf_instance::get_properties()
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{
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obs_properties_t* props = obs_properties_create();
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obs_property_t* p = nullptr;
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p = obs_properties_add_bool(props, P_INNER, P_TRANSLATE(P_INNER));
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_INNER)));
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obs_property_set_modified_callback2(p, cb_modified_inside, this);
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p = obs_properties_add_float_slider(props, P_INNER_RANGE_MINIMUM, P_TRANSLATE(P_INNER_RANGE_MINIMUM), 0.0, 16.0,
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0.01);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_INNER_RANGE_MINIMUM)));
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p = obs_properties_add_float_slider(props, P_INNER_RANGE_MAXIMUM, P_TRANSLATE(P_INNER_RANGE_MAXIMUM), 0.0, 16.0,
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0.01);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_INNER_RANGE_MAXIMUM)));
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p = obs_properties_add_float_slider(props, P_INNER_OFFSET_X, P_TRANSLATE(P_INNER_OFFSET_X), -100.0, 100.0, 0.01);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_INNER_OFFSET_X)));
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p = obs_properties_add_float_slider(props, P_INNER_OFFSET_Y, P_TRANSLATE(P_INNER_OFFSET_Y), -100.0, 100.0, 0.01);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_INNER_OFFSET_Y)));
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p = obs_properties_add_color(props, P_INNER_COLOR, P_TRANSLATE(P_INNER_COLOR));
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_INNER_COLOR)));
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p = obs_properties_add_float_slider(props, P_INNER_ALPHA, P_TRANSLATE(P_INNER_ALPHA), 0.0, 100.0, 0.1);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_INNER_ALPHA)));
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p = obs_properties_add_bool(props, P_OUTER, P_TRANSLATE(P_OUTER));
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_OUTER)));
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obs_property_set_modified_callback2(p, cb_modified_outside, this);
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p = obs_properties_add_float_slider(props, P_OUTER_RANGE_MINIMUM, P_TRANSLATE(P_OUTER_RANGE_MINIMUM), 0.0, 16.0,
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0.01);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_OUTER_RANGE_MINIMUM)));
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p = obs_properties_add_float_slider(props, P_OUTER_RANGE_MAXIMUM, P_TRANSLATE(P_OUTER_RANGE_MAXIMUM), 0.0, 16.0,
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0.01);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_OUTER_RANGE_MAXIMUM)));
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p = obs_properties_add_float_slider(props, P_OUTER_OFFSET_X, P_TRANSLATE(P_OUTER_OFFSET_X), -100.0, 100.0, 0.01);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_OUTER_OFFSET_X)));
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p = obs_properties_add_float_slider(props, P_OUTER_OFFSET_Y, P_TRANSLATE(P_OUTER_OFFSET_Y), -100.0, 100.0, 0.01);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_OUTER_OFFSET_Y)));
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|
||||
p = obs_properties_add_color(props, P_OUTER_COLOR, P_TRANSLATE(P_OUTER_COLOR));
|
||||
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_OUTER_COLOR)));
|
||||
|
||||
p = obs_properties_add_float_slider(props, P_OUTER_ALPHA, P_TRANSLATE(P_OUTER_ALPHA), 0.0, 100.0, 0.1);
|
||||
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_OUTER_ALPHA)));
|
||||
|
||||
return props;
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_instance::update(obs_data_t* data)
|
||||
{
|
||||
this->m_inner_shadow = obs_data_get_bool(data, P_INNER);
|
||||
this->m_inner_range_min = float_t(obs_data_get_double(data, P_INNER_RANGE_MINIMUM));
|
||||
this->m_inner_range_max = float_t(obs_data_get_double(data, P_INNER_RANGE_MAXIMUM));
|
||||
if (this->m_inner_range_max < this->m_inner_range_min) {
|
||||
std::swap(this->m_inner_range_max, this->m_inner_range_min);
|
||||
}
|
||||
this->m_inner_offset_x = float_t(obs_data_get_double(data, P_INNER_OFFSET_X));
|
||||
this->m_inner_offset_y = float_t(obs_data_get_double(data, P_INNER_OFFSET_Y));
|
||||
this->m_inner_color = obs_data_get_int(data, P_INNER_COLOR) & 0x00FFFFFF
|
||||
| (int32_t(obs_data_get_double(data, P_INNER_ALPHA) * 2.55) << 24);
|
||||
|
||||
this->m_outer_shadow = obs_data_get_bool(data, P_OUTER);
|
||||
this->m_outer_range_min = float_t(obs_data_get_double(data, P_OUTER_RANGE_MINIMUM));
|
||||
this->m_outer_range_max = float_t(obs_data_get_double(data, P_OUTER_RANGE_MAXIMUM));
|
||||
if (this->m_outer_range_max < this->m_outer_range_min) {
|
||||
std::swap(this->m_outer_range_max, this->m_outer_range_min);
|
||||
}
|
||||
this->m_outer_offset_x = float_t(obs_data_get_double(data, P_OUTER_OFFSET_X));
|
||||
this->m_outer_offset_y = float_t(obs_data_get_double(data, P_OUTER_OFFSET_Y));
|
||||
this->m_outer_color = obs_data_get_int(data, P_OUTER_COLOR) & 0x00FFFFFF
|
||||
| (int32_t(obs_data_get_double(data, P_OUTER_ALPHA) * 2.55) << 24);
|
||||
}
|
||||
|
||||
uint32_t filter::shadow_sdf::shadow_sdf_instance::get_width()
|
||||
{
|
||||
return uint32_t(0);
|
||||
}
|
||||
|
||||
uint32_t filter::shadow_sdf::shadow_sdf_instance::get_height()
|
||||
{
|
||||
return uint32_t(0);
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_instance::activate() {}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_instance::deactivate() {}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_instance::video_tick(float time)
|
||||
{
|
||||
this->m_tick += time;
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_instance::video_render(gs_effect_t*)
|
||||
{
|
||||
obs_source_t* parent = obs_filter_get_parent(this->m_self);
|
||||
obs_source_t* target = obs_filter_get_target(this->m_self);
|
||||
uint32_t baseW = obs_source_get_base_width(target);
|
||||
uint32_t baseH = obs_source_get_base_height(target);
|
||||
vec4 color_transparent = {0};
|
||||
gs_effect_t* default_effect = obs_get_base_effect(obs_base_effect::OBS_EFFECT_DEFAULT);
|
||||
|
||||
if (!parent || !target || (baseW == 0) || (baseH == 0)) {
|
||||
obs_source_skip_video_filter(this->m_self);
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
if (this->m_tick != this->m_last_tick) {
|
||||
// Store input texture.
|
||||
{
|
||||
auto op = m_input->render(baseW, baseH);
|
||||
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
|
||||
gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &color_transparent, 0, 0);
|
||||
gs_set_cull_mode(GS_NEITHER);
|
||||
gs_reset_blend_state();
|
||||
gs_enable_blending(false);
|
||||
gs_blend_function(GS_BLEND_SRCALPHA, GS_BLEND_ZERO);
|
||||
gs_enable_depth_test(false);
|
||||
gs_enable_stencil_test(false);
|
||||
gs_enable_stencil_write(false);
|
||||
gs_enable_color(true, true, true, true);
|
||||
|
||||
if (obs_source_process_filter_begin(this->m_self, GS_RGBA, OBS_ALLOW_DIRECT_RENDERING)) {
|
||||
obs_source_process_filter_end(this->m_self, default_effect, baseW, baseH);
|
||||
} else {
|
||||
throw std::exception("failed to process source");
|
||||
}
|
||||
m_input->get_texture(this->m_source_texture);
|
||||
if (!this->m_source_texture) {
|
||||
throw std::exception("failed to draw source");
|
||||
}
|
||||
}
|
||||
|
||||
// Generate SDF Buffers
|
||||
{
|
||||
this->m_sdf_read->get_texture(this->m_sdf_texture);
|
||||
if (!this->m_sdf_texture) {
|
||||
throw std::exception("SDF Backbuffer empty");
|
||||
}
|
||||
|
||||
std::shared_ptr<gs::effect> sdf_effect =
|
||||
filter::shadow_sdf::shadow_sdf_factory::get()->get_sdf_generator_effect();
|
||||
if (!sdf_effect) {
|
||||
throw std::exception("SDF Effect no loaded");
|
||||
}
|
||||
|
||||
{
|
||||
auto op = m_sdf_write->render(baseW, baseH);
|
||||
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
|
||||
gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &color_transparent, 0, 0);
|
||||
gs_set_cull_mode(GS_NEITHER);
|
||||
gs_reset_blend_state();
|
||||
gs_enable_blending(false);
|
||||
gs_enable_depth_test(false);
|
||||
gs_enable_stencil_test(false);
|
||||
gs_enable_stencil_write(false);
|
||||
gs_enable_color(true, true, true, true);
|
||||
|
||||
sdf_effect->get_parameter("_image").set_texture(this->m_source_texture);
|
||||
sdf_effect->get_parameter("_size").set_float2(float_t(baseW), float_t(baseH));
|
||||
sdf_effect->get_parameter("_sdf").set_texture(this->m_sdf_texture);
|
||||
sdf_effect->get_parameter("_threshold").set_float(0.5);
|
||||
|
||||
while (gs_effect_loop(sdf_effect->get_object(), "Draw")) {
|
||||
gs_draw_sprite(this->m_sdf_texture->get_object(), 0, baseW, baseH);
|
||||
}
|
||||
}
|
||||
this->m_sdf_write.swap(this->m_sdf_read);
|
||||
this->m_sdf_read->get_texture(this->m_sdf_texture);
|
||||
if (!this->m_sdf_texture) {
|
||||
throw std::exception("SDF Backbuffer empty");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
std::shared_ptr<gs::effect> shadow_effect =
|
||||
filter::shadow_sdf::shadow_sdf_factory::get()->get_sdf_shadow_effect();
|
||||
if (!shadow_effect) {
|
||||
throw std::exception("Shadow Effect no loaded");
|
||||
}
|
||||
|
||||
gs_set_cull_mode(GS_NEITHER);
|
||||
gs_reset_blend_state();
|
||||
gs_enable_blending(true);
|
||||
gs_blend_function(GS_BLEND_SRCALPHA, GS_BLEND_INVSRCALPHA);
|
||||
gs_enable_depth_test(false);
|
||||
gs_enable_stencil_test(false);
|
||||
gs_enable_stencil_write(false);
|
||||
gs_enable_color(true, true, true, true);
|
||||
|
||||
shadow_effect->get_parameter("_sdf").set_texture(this->m_sdf_texture);
|
||||
shadow_effect->get_parameter("_image").set_texture(this->m_source_texture);
|
||||
shadow_effect->get_parameter("_threshold").set_float(0.5f);
|
||||
|
||||
if (this->m_inner_shadow) {
|
||||
shadow_effect->get_parameter("_inner_min").set_float(this->m_inner_range_min);
|
||||
shadow_effect->get_parameter("_inner_max").set_float(this->m_inner_range_max);
|
||||
shadow_effect->get_parameter("_inner_offset")
|
||||
.set_float2(this->m_inner_offset_x / float_t(baseW), this->m_inner_offset_y / float_t(baseH));
|
||||
shadow_effect->get_parameter("_inner_color")
|
||||
.set_float4((this->m_inner_color & 0xFF) / 255.0f, ((this->m_inner_color >> 8) & 0xFF) / 255.0f,
|
||||
((this->m_inner_color >> 16) & 0xFF) / 255.0f,
|
||||
((this->m_inner_color >> 24) & 0xFF) / 255.0f);
|
||||
} else {
|
||||
shadow_effect->get_parameter("_inner_min").set_float(0.);
|
||||
shadow_effect->get_parameter("_inner_max").set_float(0.);
|
||||
shadow_effect->get_parameter("_inner_offset").set_float2(0., 0.);
|
||||
shadow_effect->get_parameter("_inner_color").set_float4(0., 0., 0., 0.);
|
||||
}
|
||||
if (this->m_outer_shadow) {
|
||||
shadow_effect->get_parameter("_outer_min").set_float(this->m_outer_range_min);
|
||||
shadow_effect->get_parameter("_outer_max").set_float(this->m_outer_range_max);
|
||||
shadow_effect->get_parameter("_outer_offset")
|
||||
.set_float2(this->m_outer_offset_x / float_t(baseW), this->m_outer_offset_y / float_t(baseH));
|
||||
shadow_effect->get_parameter("_outer_color")
|
||||
.set_float4((this->m_outer_color & 0xFF) / 255.0f, ((this->m_outer_color >> 8) & 0xFF) / 255.0f,
|
||||
((this->m_outer_color >> 16) & 0xFF) / 255.0f,
|
||||
((this->m_outer_color >> 24) & 0xFF) / 255.0f);
|
||||
} else {
|
||||
shadow_effect->get_parameter("_outer_min").set_float(0.);
|
||||
shadow_effect->get_parameter("_outer_max").set_float(0.);
|
||||
shadow_effect->get_parameter("_outer_offset").set_float2(0., 0.);
|
||||
shadow_effect->get_parameter("_outer_color").set_float4(0., 0., 0., 0.);
|
||||
}
|
||||
|
||||
while (gs_effect_loop(shadow_effect->get_object(), "Draw")) {
|
||||
gs_draw_sprite(this->m_source_texture->get_object(), 0, baseW, baseH);
|
||||
}
|
||||
}
|
||||
} catch (...) {
|
||||
gs_reset_blend_state();
|
||||
gs_enable_depth_test(false);
|
||||
obs_source_skip_video_filter(this->m_self);
|
||||
return;
|
||||
}
|
||||
gs_reset_blend_state();
|
||||
gs_enable_depth_test(false);
|
||||
this->m_last_tick = this->m_tick;
|
||||
}
|
||||
|
||||
filter::shadow_sdf::shadow_sdf_factory::shadow_sdf_factory()
|
||||
{
|
||||
memset(&source_info, 0, sizeof(obs_source_info));
|
||||
source_info.id = "obs-stream-effects-filter-shadow-sdf";
|
||||
source_info.type = OBS_SOURCE_TYPE_FILTER;
|
||||
source_info.output_flags = OBS_SOURCE_VIDEO;
|
||||
source_info.get_name = get_name;
|
||||
source_info.get_defaults = get_defaults;
|
||||
source_info.get_properties = get_properties;
|
||||
|
||||
source_info.create = create;
|
||||
source_info.destroy = destroy;
|
||||
source_info.update = update;
|
||||
source_info.activate = activate;
|
||||
source_info.deactivate = deactivate;
|
||||
source_info.video_tick = video_tick;
|
||||
source_info.video_render = video_render;
|
||||
|
||||
obs_register_source(&source_info);
|
||||
}
|
||||
|
||||
filter::shadow_sdf::shadow_sdf_factory::~shadow_sdf_factory() {}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::on_list_fill()
|
||||
{
|
||||
{
|
||||
char* file = obs_module_file("effects/sdf-generator.effect");
|
||||
try {
|
||||
sdf_generator_effect = std::make_shared<gs::effect>(file);
|
||||
} catch (std::runtime_error ex) {
|
||||
P_LOG_ERROR("<filter-shadow> Loading effect '%s' failed with error(s): %s", file, ex.what());
|
||||
}
|
||||
bfree(file);
|
||||
}
|
||||
{
|
||||
char* file = obs_module_file("effects/sdf-shadow.effect");
|
||||
try {
|
||||
sdf_shadow_effect = std::make_shared<gs::effect>(file);
|
||||
} catch (std::runtime_error ex) {
|
||||
P_LOG_ERROR("<filter-shadow> Loading effect '%s' failed with error(s): %s", file, ex.what());
|
||||
}
|
||||
bfree(file);
|
||||
}
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::on_list_empty()
|
||||
{
|
||||
sdf_generator_effect.reset();
|
||||
sdf_shadow_effect.reset();
|
||||
}
|
||||
|
||||
void* filter::shadow_sdf::shadow_sdf_factory::create(obs_data_t* data, obs_source_t* parent)
|
||||
{
|
||||
if (get()->sources.empty()) {
|
||||
get()->on_list_fill();
|
||||
}
|
||||
filter::shadow_sdf::shadow_sdf_instance* ptr = new filter::shadow_sdf::shadow_sdf_instance(data, parent);
|
||||
get()->sources.push_back(ptr);
|
||||
return ptr;
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::destroy(void* inptr)
|
||||
{
|
||||
filter::shadow_sdf::shadow_sdf_instance* ptr = reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr);
|
||||
get()->sources.remove(ptr);
|
||||
if (get()->sources.empty()) {
|
||||
get()->on_list_empty();
|
||||
}
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::get_defaults(obs_data_t* data)
|
||||
{
|
||||
obs_data_set_bool(data, P_INNER, false);
|
||||
obs_data_set_double(data, P_INNER_RANGE_MINIMUM, 0.0);
|
||||
obs_data_set_double(data, P_INNER_RANGE_MAXIMUM, 4.0);
|
||||
obs_data_set_double(data, P_INNER_OFFSET_X, 0.0);
|
||||
obs_data_set_double(data, P_INNER_OFFSET_Y, 0.0);
|
||||
obs_data_set_int(data, P_INNER_COLOR, 0x00000000);
|
||||
obs_data_set_double(data, P_INNER_ALPHA, 100.0);
|
||||
|
||||
obs_data_set_bool(data, P_OUTER, false);
|
||||
obs_data_set_double(data, P_OUTER_RANGE_MINIMUM, 0.0);
|
||||
obs_data_set_double(data, P_OUTER_RANGE_MAXIMUM, 4.0);
|
||||
obs_data_set_double(data, P_OUTER_OFFSET_X, 0.0);
|
||||
obs_data_set_double(data, P_OUTER_OFFSET_Y, 0.0);
|
||||
obs_data_set_int(data, P_OUTER_COLOR, 0x00000000);
|
||||
obs_data_set_double(data, P_OUTER_ALPHA, 100.0);
|
||||
}
|
||||
|
||||
obs_properties_t* filter::shadow_sdf::shadow_sdf_factory::get_properties(void* inptr)
|
||||
{
|
||||
return reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr)->get_properties();
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::update(void* inptr, obs_data_t* settings)
|
||||
{
|
||||
reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr)->update(settings);
|
||||
}
|
||||
|
||||
const char* filter::shadow_sdf::shadow_sdf_factory::get_name(void* inptr)
|
||||
{
|
||||
inptr;
|
||||
return P_TRANSLATE(SOURCE_NAME);
|
||||
}
|
||||
|
||||
uint32_t filter::shadow_sdf::shadow_sdf_factory::get_width(void* inptr)
|
||||
{
|
||||
return reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr)->get_width();
|
||||
}
|
||||
|
||||
uint32_t filter::shadow_sdf::shadow_sdf_factory::get_height(void* inptr)
|
||||
{
|
||||
return reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr)->get_height();
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::activate(void* inptr)
|
||||
{
|
||||
reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr)->activate();
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::deactivate(void* inptr)
|
||||
{
|
||||
reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr)->deactivate();
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::video_tick(void* inptr, float delta)
|
||||
{
|
||||
reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr)->video_tick(delta);
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::video_render(void* inptr, gs_effect_t* effect)
|
||||
{
|
||||
reinterpret_cast<filter::shadow_sdf::shadow_sdf_instance*>(inptr)->video_render(effect);
|
||||
}
|
||||
|
||||
std::shared_ptr<gs::effect> filter::shadow_sdf::shadow_sdf_factory::get_sdf_generator_effect()
|
||||
{
|
||||
return sdf_generator_effect;
|
||||
}
|
||||
|
||||
std::shared_ptr<gs::effect> filter::shadow_sdf::shadow_sdf_factory::get_sdf_shadow_effect()
|
||||
{
|
||||
return sdf_shadow_effect;
|
||||
}
|
||||
|
||||
static filter::shadow_sdf::shadow_sdf_factory* factory_instance = nullptr;
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::initialize()
|
||||
{
|
||||
factory_instance = new filter::shadow_sdf::shadow_sdf_factory();
|
||||
}
|
||||
|
||||
void filter::shadow_sdf::shadow_sdf_factory::finalize()
|
||||
{
|
||||
delete factory_instance;
|
||||
}
|
||||
|
||||
filter::shadow_sdf::shadow_sdf_factory* filter::shadow_sdf::shadow_sdf_factory::get()
|
||||
{
|
||||
return factory_instance;
|
||||
}
|
128
source/filter-shadow-sdf.hpp
Normal file
128
source/filter-shadow-sdf.hpp
Normal file
|
@ -0,0 +1,128 @@
|
|||
/*
|
||||
* Modern effects for a modern Streamer
|
||||
* Copyright (C) 2017-2018 Michael Fabian Dirks
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
||||
*/
|
||||
|
||||
#ifndef OBS_STREAM_EFFECTS_FILTER_SHADOW_SDF_HPP
|
||||
#define OBS_STREAM_EFFECTS_FILTER_SHADOW_SDF_HPP
|
||||
#pragma once
|
||||
|
||||
#include <memory>
|
||||
#include "gs-effect.h"
|
||||
#include "gs-rendertarget.h"
|
||||
#include "gs-sampler.h"
|
||||
#include "gs-texture.h"
|
||||
#include "gs-vertexbuffer.h"
|
||||
#include "plugin.h"
|
||||
|
||||
extern "C" {
|
||||
#include <obs.h>
|
||||
}
|
||||
|
||||
namespace filter {
|
||||
namespace shadow_sdf {
|
||||
class shadow_sdf_instance {
|
||||
obs_source_t* m_self;
|
||||
std::shared_ptr<gs::rendertarget> m_input;
|
||||
std::shared_ptr<gs::rendertarget> m_sdf_write, m_sdf_read;
|
||||
std::shared_ptr<gs::texture> m_source_texture;
|
||||
std::shared_ptr<gs::texture> m_sdf_texture;
|
||||
|
||||
float_t m_tick = 0.;
|
||||
float_t m_last_tick = 0.;
|
||||
|
||||
bool m_inner_shadow;
|
||||
float_t m_inner_range_min;
|
||||
float_t m_inner_range_max;
|
||||
float_t m_inner_offset_x;
|
||||
float_t m_inner_offset_y;
|
||||
uint32_t m_inner_color;
|
||||
bool m_outer_shadow;
|
||||
float_t m_outer_range_min;
|
||||
float_t m_outer_range_max;
|
||||
float_t m_outer_offset_x;
|
||||
float_t m_outer_offset_y;
|
||||
uint32_t m_outer_color;
|
||||
|
||||
static bool cb_modified_inside(void* ptr, obs_properties_t* props, obs_property* prop,
|
||||
obs_data_t* settings);
|
||||
|
||||
static bool cb_modified_outside(void* ptr, obs_properties_t* props, obs_property* prop,
|
||||
obs_data_t* settings);
|
||||
|
||||
public:
|
||||
shadow_sdf_instance(obs_data_t* settings, obs_source_t* self);
|
||||
~shadow_sdf_instance();
|
||||
|
||||
obs_properties_t* get_properties();
|
||||
void update(obs_data_t*);
|
||||
|
||||
uint32_t get_width();
|
||||
uint32_t get_height();
|
||||
|
||||
void activate();
|
||||
void deactivate();
|
||||
|
||||
void video_tick(float);
|
||||
void video_render(gs_effect_t*);
|
||||
};
|
||||
|
||||
class shadow_sdf_factory {
|
||||
obs_source_info source_info;
|
||||
std::list<shadow_sdf_instance*> sources;
|
||||
|
||||
std::shared_ptr<gs::effect> sdf_generator_effect;
|
||||
std::shared_ptr<gs::effect> sdf_shadow_effect;
|
||||
|
||||
private:
|
||||
shadow_sdf_factory();
|
||||
~shadow_sdf_factory();
|
||||
|
||||
void on_list_fill();
|
||||
void on_list_empty();
|
||||
|
||||
protected:
|
||||
static void* create(obs_data_t* settings, obs_source_t* self);
|
||||
static void destroy(void* source);
|
||||
|
||||
static void get_defaults(obs_data_t* settings);
|
||||
static obs_properties_t* get_properties(void* source);
|
||||
static void update(void* source, obs_data_t* settings);
|
||||
|
||||
static const char* get_name(void* source);
|
||||
static uint32_t get_width(void* source);
|
||||
static uint32_t get_height(void* source);
|
||||
|
||||
static void activate(void* source);
|
||||
static void deactivate(void* source);
|
||||
|
||||
static void video_tick(void* source, float delta);
|
||||
static void video_render(void* source, gs_effect_t* effect);
|
||||
|
||||
public:
|
||||
std::shared_ptr<gs::effect> get_sdf_generator_effect();
|
||||
std::shared_ptr<gs::effect> get_sdf_shadow_effect();
|
||||
|
||||
public: // Singleton
|
||||
static void initialize();
|
||||
static void finalize();
|
||||
static shadow_sdf_factory* get();
|
||||
};
|
||||
} // namespace shadow_sdf
|
||||
} // namespace filter
|
||||
|
||||
#endif
|
Loading…
Reference in a new issue