shadertoy wrapper

Author: nir

jupylet/assets/shaders/shadertoy-wrapper.glsl

@@ -0,0 +1,70 @@
+
+#version 330
+
+#if defined VERTEX_SHADER
+
+in vec3 in_position;
+in vec2 in_texcoord_0;
+
+uniform mat4 model;
+uniform mat4 projection;
+
+out vec2 frag_uv;
+
+void main() {
+    gl_Position = projection * model * vec4(in_position, 1.0);
+    frag_uv = in_texcoord_0;
+}
+
+#elif defined FRAGMENT_SHADER
+
+uniform vec3      iResolution;           // viewport resolution (in pixels)
+uniform float     iTime;                 // shader playback time (in seconds)
+uniform float     iTimeDelta;            // render time (in seconds)
+uniform int       iFrame;                // shader playback frame
+uniform float     iChannelTime[4];       // channel playback time (in seconds)
+uniform vec3      iChannelResolution[4]; // channel resolution (in pixels)
+uniform vec4      iMouse;                // mouse pixel coords. xy: current (if MLB down), zw: click
+uniform sampler2D iChannel0;             // input channel. XX = 2D/Cube
+uniform sampler2D iChannel1;             // input channel. XX = 2D/Cube
+uniform sampler2D iChannel2;             // input channel. XX = 2D/Cube
+uniform sampler2D iChannel3;             // input channel. XX = 2D/Cube
+uniform vec4      iDate;                 // (year, month, day, time in seconds)
+uniform float     iSampleRate;           // sound sample rate (i.e., 44100)
+
+
+void mainImage( out vec4 fragColor, in vec2 fragCoord ) {}
+
+
+uniform int components;
+uniform vec4 color;
+
+in vec2 frag_uv;
+
+out vec4 fragColor;
+
+
+void main() {
+
+    vec2 uv = frag_uv;
+
+    uv *= iResolution.xy;
+
+    fragColor = color;
+
+    vec4 color0;
+
+    mainImage(color0, uv);
+    
+    if (components == 4) {
+        fragColor *= color0;
+    }
+    else if (components == 1) {
+        fragColor.a *= color0.x;        
+    }
+    else {
+        fragColor.rgb *= color0.rgb;
+    }
+}
+
+#endif