mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-12-05 01:27:26 +00:00
146 lines
3.3 KiB
Text
146 lines
3.3 KiB
Text
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// Target with smoothstep by possum
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// https://www.shadertoy.com/view/Xsl3RX
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// License Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
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// Contact the author for other licensing options
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// type conversion
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#define vec2 float2
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#define vec3 float3
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#define vec4 float4
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#define ivec2 int2
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#define ivec3 int3
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#define ivec4 int4
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#define mat2 float2x2
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#define mat3 float3x3
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#define mat4 float4x4
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#define fract frac
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#define mix lerp
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#define iTime Time.x
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#define iResolution ViewSize
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// Always provided by OBS
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uniform float4x4 ViewProj<
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bool automatic = true;
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string name = "View Projection Matrix";
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>;
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// Provided by Stream Effects
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uniform float4 Time<
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// x: Time in seconds since the source was created.
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// y: Time in the current second.
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// z: Total seconds passed since the source was created.
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// w: Reserved
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bool automatic = true;
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string name = "Time Array";
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string description = "A float4 value containing the total time, rendering time and the time since the last tick. The last value is a random number between 0 and 1.";
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>;
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uniform float4 ViewSize<
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// x: Width
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// y: Height
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// z: 1. / Width
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// w: 1. / Height
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bool automatic = true;
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>;
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uniform texture2d InputA<
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bool automatic = true;
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>;
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uniform float4x4 Random<
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bool automatic = true;
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string name = "Random Array";
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string description = "A float4x4 value containing random values between 0 and 1";
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>;
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// Shader Parameters
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uniform float pRings<
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string name = "Rings";
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string field_type = "slider";
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float minimum = 1.0;
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float maximum = 50.0;
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float step = 0.01;
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float scale = 1.;
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> = 5.0;
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uniform float pVelocity<
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string name = "Ring Velocity";
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string field_type = "slider";
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float minimum = 0.1;
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float maximum = 10.0;
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float step = 0.01;
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float scale = 1.;
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> = 1.0;
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uniform float pBorder<
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string name = "Border Size";
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string field_type = "slider";
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float minimum = 0.1;
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float maximum = 100.0;
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float step = 0.1;
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float scale = 0.001;
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> = 1.;
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// convenience values
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#define PI 3.1415926f
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#define TAU 6.2831853f
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#define TwoPI 6.2831853f
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#define HalfPI 1.5707963f
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#define deg30 0.20943951
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float mod(float x, float y) {
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return x - y * floor(x / y);
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}
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// ---------- Shader Code
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sampler_state def_sampler {
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Filter = Linear;
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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 VertFragData {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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VertFragData VSDefault(VertFragData vtx) {
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vtx.pos = mul(float4(vtx.pos.xyz, 1.0), ViewProj);
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return vtx;
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}
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void mainImage( out vec4 fragColor, in vec2 fragCoord )
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{
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float2 position = fragCoord.xy / ViewSize.xy;
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float aspect = ViewSize.x / ViewSize.y;
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position.x *= aspect;
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float dist = distance(position, float2( aspect * 0.5, 0.5));
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float offset = Time.x * pVelocity;
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float conv = pRings * 1.;
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float v = dist * conv - offset;
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float ringr = floor(v);
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float ringv = abs( dist - (ringr + float( frac(v) > 0.5) + offset) / conv);
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float color = smoothstep( -pBorder, pBorder, ringv);
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if ( mod(ringr, 2.) == 1.) color = 1. - color;
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fragColor = vec4(color, color, color, 1.);
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}
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float4 PSDefault(VertFragData vtx) : TARGET {
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float4 col = float4(1., 1., 1., 1.);
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mainImage(col, vtx.uv * ViewSize.xy);
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return col;
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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(vtx);
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pixel_shader = PSDefault(vtx);
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}
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}
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