RetroArch-Wii-U-Slang-Shaders/test/feedback.ppslang
2020-04-26 18:03:54 -05:00

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Text

#version 450
layout(std140, set = 0, binding = 0)uniform UBO
{
mat4 MVP;
vec4 SourceSize;
vec4 PassFeedbackSize0;
} global;
#pragma stagevertex
layout(location = 0)in vec4 Position;
layout(location = 1)in vec2 TexCoord;
layout(location = 0)out vec2 vTexCoord;
void main()
{
gl_Position = global . MVP * Position;
vTexCoord = TexCoord;
}
#pragma stagefragment
layout(location = 0)in vec2 vTexCoord;
layout(location = 0)out vec4 FragColor;
layout(set = 0, binding = 1)uniform sampler2D Source;
layout(set = 0, binding = 2)uniform sampler2D PassFeedback0;
void main()
{
vec2 tex = floor(global . PassFeedbackSize0 . xy * vTexCoord);
tex =(tex + 0.5)* global . PassFeedbackSize0 . zw;
vec3 current = texture(Source, tex). rgb;
vec3 prev = texture(PassFeedback0, tex). rgb;
FragColor = vec4(mix(current, prev, 0.8), 1.0);
}