refactoring shader configs

shaders/graph.glsl

@@ -0,0 +1,26 @@
+
+/* Distance (in pixels) for each fragment to sample the audio data */
+#define SAMPLE_RANGE 0.2
+
+/* Amount of samples for each fragment, using the above range for each sample */
+#define SAMPLE_AMT 22
+
+/* Inverse horizontal scale, larger means less higher frequencies displayed */
+#define WSCALE 11
+
+/* Vertical scale, larger values will amplify output */
+#define VSCALE 300
+
+/* Rendering direction, either -1 (inwards) or 1 (outwards). */
+#define DIRECTION -1
+
+/* Graph color logic. The shader will only use the `COLOR` macro definition for output. */
+
+/* right color offset */
+#define RCOL_OFF (gl_FragCoord.x / 3000)
+/* left color offset */
+#define LCOL_OFF ((screen.x - gl_FragCoord.x) / 3000)
+/* vertical color step */
+#define LSTEP (gl_FragCoord.y / 170)
+/* actual color definition */
+#define COLOR vec4((0.3 + RCOL_OFF) + LSTEP, 0.6 - LSTEP, (0.3 + LCOL_OFF) + LSTEP, 1)

shaders/graph/3.frag.old

@@ -1,28 +0,0 @@
-
-layout(pixel_center_integer) in vec4 gl_FragCoord;
-
-#request uniform "screen" screen
-#request uniform "prev" tex
-
-uniform sampler2D tex;    /* screen texture    */
-uniform ivec2     screen; /* screen dimensions */
-
-out vec4 fragment; /* output */
-
-void main() {
-    fragment = texture(tex, vec2(gl_FragCoord.x / screen.x, gl_FragCoord.y / screen.y));
-    
-    float a0 = texture(tex, vec2((gl_FragCoord.x + 1) / screen.x, (gl_FragCoord.y + 0) / screen.y)).a;
-    float a1 = texture(tex, vec2((gl_FragCoord.x + 1) / screen.x, (gl_FragCoord.y + 1) / screen.y)).a;
-    float a2 = texture(tex, vec2((gl_FragCoord.x + 0) / screen.x, (gl_FragCoord.y + 1) / screen.y)).a;
-    float a3 = texture(tex, vec2((gl_FragCoord.x + 1) / screen.x, (gl_FragCoord.y + 0) / screen.y)).a;
-    
-    float a4 = texture(tex, vec2((gl_FragCoord.x - 1) / screen.x, (gl_FragCoord.y - 0) / screen.y)).a;
-    float a5 = texture(tex, vec2((gl_FragCoord.x - 1) / screen.x, (gl_FragCoord.y - 1) / screen.y)).a;
-    float a6 = texture(tex, vec2((gl_FragCoord.x - 0) / screen.x, (gl_FragCoord.y - 1) / screen.y)).a;
-    float a7 = texture(tex, vec2((gl_FragCoord.x - 1) / screen.x, (gl_FragCoord.y - 0) / screen.y)).a;
-
-    float avg = (a0 + a1 + a2 + a3 + a4 + a5 + a6 + a7) / 8.0;
-
-    if (gl_FragCoord.y > 1) fragment *= avg;
-}

shaders/graph/settings.glsl

@@ -1,4 +0,0 @@
-#define MIN_THICKNESS 1
-#define MAX_THICKNESS 12
-#define BASE_COLOR vec4(0.7, 0.2, 0.45, 1)
-#define AMPLIFY 500

shaders/wave.glsl

@@ -0,0 +1,12 @@
+
+/* min (vertical) line thickness */
+#define MIN_THICKNESS 1
+
+/* max (vertical) line thickness */
+#define MAX_THICKNESS 10
+
+/* base color to use, distance from center will multiply the RGB components */
+#define BASE_COLOR vec4(0.7, 0.2, 0.45, 1)
+
+/* amplitude */
+#define AMPLIFY 500

shaders/wave/settings.glsl

@@ -1,4 +0,0 @@
-#define MIN_THICKNESS 1
-#define MAX_THICKNESS 10
-#define BASE_COLOR vec4(0.7, 0.2, 0.45, 1)
-#define AMPLIFY 500