Final v1

src/fft.cpp

@@ -23,7 +23,9 @@ static unsigned int bit_reverse(unsigned int x, int log2n) {
     return n;
 }
 
+
 void compute_fft(float* time_data, float* freq_out) {
+
     static float real[FFT_SIZE];
     static float imag[FFT_SIZE];
 

src/main.cpp

@@ -1,7 +1,7 @@
 // custom build and feature flags
 #ifdef DEBUG
 	#define OPENGL_DEBUG        0
-	#define FULLSCREEN          0
+	#define FULLSCREEN          1
 	#define DESPERATE           0
 	#define BREAK_COMPATIBILITY 0
 #else
@@ -12,7 +12,7 @@
 #endif
 
 #define POST_PASS    0
-#define USE_MIPMAPS  1
+#define USE_MIPMAPS  0
 #define USE_AUDIO    1
 #define NO_UNIFORMS  0
 
@@ -44,6 +44,10 @@ static float fft_input[FFT_SIZE];
 static float fft_output[FFT_SIZE / 2];
 static float fft_uniform[FFT_SIZE / 4];
 
+static float syncs[1 + SU_NUMSYNCS];
+
+#define SU_VALUE SU_LENGTH_IN_SAMPLES * SU_CHANNEL_COUNT * SU_SAMPLE_SIZE
+
 void entrypoint(void)
 #else
 #include "editor.h"
@@ -96,7 +100,7 @@ int __cdecl main(int argc, char* argv[])
 
 		LPVOID p1;
 		DWORD l1;
-		IDirectSoundBuffer_Lock(direct_sound_buffer, 0, SU_LENGTH_IN_SAMPLES * SU_CHANNEL_COUNT * SU_SAMPLE_SIZE, &p1, &l1, NULL, NULL, 0);
+		IDirectSoundBuffer_Lock(direct_sound_buffer, 0, SU_VALUE, &p1, &l1, NULL, NULL, 0);
 
 		CreateThread(0, 0, (LPTHREAD_START_ROUTINE)su_render_song, p1, 0, 0);
 
@@ -112,23 +116,21 @@ int __cdecl main(int argc, char* argv[])
 		track.play();
 		double position = 0.0;
 	#endif
-	static float syncs[1 + SU_NUMSYNCS];
 	long playCursor = 0;
 	long lastPlayCursor = -1;
-	volatile float maximum = 0.0; // Helper variable to calculate maximum fft output for normalization
     
 	// Unlock buffer for next use
-	IDirectSoundBuffer_Unlock(direct_sound_buffer, p1, SU_LENGTH_IN_SAMPLES * SU_CHANNEL_COUNT * SU_SAMPLE_SIZE, NULL, NULL);
+	IDirectSoundBuffer_Unlock(direct_sound_buffer, p1, SU_VALUE, NULL, NULL);
 	
 	// Play sound
     direct_sound_buffer->Play(0, 0, 0);
 
 	// Init FFT
-init_hamming_window();
+	init_hamming_window();
 
 	PFNGLUNIFORM1FVPROC glUniform1fvProc = ((PFNGLUNIFORM1FVPROC)wglGetProcAddress("glUniform1fv"));
 
-	const ULONGLONG targetIntervalMs = 1000 / 60; // For 60 FPS FFT updates
+	ULONGLONG targetIntervalMs = 1000 / 60; // For 60 FPS FFT updates
 
 	do
 	{
@@ -177,7 +179,7 @@ init_hamming_window();
 			HRESULT hr = IDirectSoundBuffer_Lock(direct_sound_buffer, 0, FFT_SIZE * sizeof(SUsample), &audio_ptr, &audio_size, NULL, NULL, DSBLOCK_FROMWRITECURSOR);
 
 			if (SUCCEEDED(hr) && audio_ptr) {
-				if (playCursor < ((SU_LENGTH_IN_SAMPLES * SU_CHANNEL_COUNT * SU_SAMPLE_SIZE) - (FFT_SIZE * SU_CHANNEL_COUNT * SU_SAMPLE_SIZE)))
+				if (playCursor < ((SU_VALUE) - (FFT_SIZE * SU_CHANNEL_COUNT * SU_SAMPLE_SIZE)))
 				{
 					SUsample* samples = (SUsample*)audio_ptr;
 					for (int i = 0; i < FFT_SIZE; ++i) {

src/shaders/fragment.frag

@@ -1,12 +1,11 @@
 #version 460
 precision mediump float;
 out vec4 o;
-const float PI = 3.14159265;
-const float TAU = (2. * PI);
-const float PHI = sqrt(5.) * 0.5 + 0.5;
+float PHI = sqrt(5.) * 0.5 + 0.5;
 layout(location = 0) uniform float syncs[11];
 layout(location = 20) uniform float fft_output[512]; // FFT_SIZE / 4
 float u_time = syncs[0];
+//float u_time = syncs[0];
 
 // paletti muunnos: arg 0.8 --> 0.5
 vec3 palette(float t, float arg, float arg2){
@@ -18,7 +17,7 @@ vec3 palette(float t, float arg, float arg2){
 }
 
 vec2 getUV() {
-    const vec2 u_resolution = vec2(1920, 1080);
+    vec2 u_resolution = vec2(1920, 1080);
     return ((gl_FragCoord.xy * 2. - u_resolution.xy) / u_resolution.y);
     //const vec2 scale = vec2(0.00104166667, 0.00185185185);
     //return gl_FragCoord.xy * scale - 1.0;
@@ -88,34 +87,6 @@ float hexDistance(vec2 axial) {
     return max(abs(q), max(abs(r), abs(s)));
 }
 
-/*
-float hexPylon(vec3 p, vec2 h) {
-    //vec3 p = vec3(p.x, p.z, p2.y);
-    vec3 b = vec3(h.x, h.y, h.x);
-
-    // Hexagon.
-    p.xz = abs(p.xz);
-    p.xz = vec2(p.x * .866025 + p.z * .5, p.z);
-    // The ".015" is a subtle rounding factor. Zero gives sharp edges,
-    // and larger numbers give a more rounded look.
-    return lev3(max(abs(p) - b + .15, 0.)) - .15;
-}
-*/
-
-//////////////
-//   SCENE  //
-//////////////
-/*
-// instructions -> opU( { float to union with }  , vec2( {put shape here}, {put material here} ) )
-vec2 opU(vec2 d1, vec2 d2) {
-    return (d1.x < d2.x) ? d1 : d2;
-}
-
-float sdSphere(vec3 p, float r){
-    return lev3(p) -r;
-}
-*/
-
 // Scene mapping with occlusion-aware SDF blending
 vec2 mapScene(vec3 p) {
     float dist = 20.;
@@ -134,14 +105,13 @@ vec2 mapScene(vec3 p) {
     float minDist = 1e9;
     for (int dx = -repeat; dx <= repeat; ++dx) {
         for (int dy = -repeat; dy <= repeat; ++dy) {
-            vec2 offset = vec2(dx, dy);
             vec3 hexpos = vec3(p.x-dx, p.y-8.0, p.z-dy);
             HexData hex = hexTile(hexpos, 1.1);
             float distFromCenter = hexDistance(hex.axial);
             int fftIndex = int(cl(distFromCenter + 1., 0.0, 511.0));
             float noise = mix(noise(hex.axial+1., 0.1), noise(hex.axial+1., 0.2), sin(u_time * 4.));
-            float hexHeight = cl(1.0 + (fft_output[fftIndex] * 2.0 + noise), 0., 15.);
-            vec3 r = vec3(hex.local.x + offset.x,hex.local.y,hex.local.z+offset.y);
+            float hexHeight = cl(1.0 + (fft_output[fftIndex] * 2.0) * cl(distFromCenter*0.25, 0.6, 1.5) + noise, 0., 9.);
+            vec3 r = vec3(hex.local.x + dx,hex.local.y,hex.local.z+dy);
            // r.yz *= rot2D(PI * 0.5);
             r.xz *= rot2D(0.5);
             float d = fHexagonCircumcircle(r, vec2(0.85, hexHeight));
@@ -156,18 +126,15 @@ vec2 mapScene(vec3 p) {
 ////////////////
 
 vec3 castRay(vec3 ro, vec3 rd, inout vec3 pos) {
-    float mat = 0.;
     float hit = 0.;
     float t = 0.; // total distance travelled
-    const float Z_REPEAT_DIST = 1.5;
 
     // Raymarching
     for (int i = 0; i < 50; i++) {
         pos = ro + rd * t;
         vec2 res = mapScene(pos); // Get distance to objects
-        mat = res.y;
         if (t > 200.) break;
-        if (abs(res.x) < 1e-4*(t*0.00125 + 1.0)) {
+        if (abs(res.x) < 1e-4) {
             hit = 1.0;
             break;
         }
@@ -191,7 +158,7 @@ vec3 castRay(vec3 ro, vec3 rd, inout vec3 pos) {
 //        t += min(d.x, Z_REPEAT_DIST/5.0); // "march" the ray
 //    }
 
-    return vec3(t, mat, hit);
+    return vec3(t, 0., hit);
 }
 
 ////////////////
@@ -257,25 +224,29 @@ vec3 pal(float color) {
     //color *= 0.2;
     vec3 c = palette(color, 0.25, 0.63);
     vec3 c2 = palette(color, 0.5 ,0.2);
+
     float t = cl((u_time - 129.0) / 2.0, 0.0, 1.0); // Smoothly ramps from 0 to 1 after 12s
     return mix(c, c2, t); // Blend between c and c2 over ~2 seconds
     //return c2;
 }
 
-/*
-vec3 applyFog(vec3 col, float t, vec3 rd, vec3 lightDir, float fogAmount) {
-
-    float syncsBass = cl((syncs[1] + syncs[2] + syncs[3]), 0., 1.);
-
-    float fogAmount2 = 1.0 - exp(-t * fogAmount);
-    float sunAmount = max(dot(rd, lightDir), 1.0);
-     // highlight color
-    vec3 fogColor = mix(vec3(0.3, 0.3, 0.3), vec3(0.2, 0.2, 0.2), // Main color
-    pow(sunAmount, syncsBass * 1.0));
-    return mix(col, fogColor, fogAmount2);
+vec3 applyFog(vec3 color, float dist, vec3 fogColor, float fogDensity) {
+    float fogFactor = exp(-dist * fogDensity);
+    return mix(fogColor, color, fogFactor);
 }
-*/
 
+//vec3 applyFog(vec3 col, float t, vec3 rd, vec3 lightDir, float fogAmount) {
+//
+//    float syncsBass = cl((syncs[1]), 0., 1.);
+//
+//    float fogAmount2 = 1.0 - exp(-t * fogAmount);
+//    float sunAmount = max(dot(rd, lightDir), 1.0);
+//     // highlight color
+//    vec3 fogColor = vec3(0.2, 0.2, 0.2);
+//    return mix(col, fogColor, fogAmount2);
+//}
+
+/*
 vec3 shading(vec3 p, vec3 n, vec3 dir, vec3 caPos) {
     vec3 outMaterial = vec3(0.0);
 
@@ -285,7 +256,7 @@ vec3 shading(vec3 p, vec3 n, vec3 dir, vec3 caPos) {
     //lights += phongLighting(p, n, camPos, dir, vec3(0.51), outMaterial);
     lights += addPointLight(vec3(0., 20.0, 0.), vec3(0.7, 0.3, 0.7), 15.0, p, dir, n);
 
-/*
+
     // LIGHT CHANGING WITH CIRCLE RADIUS
     float maxRadius = 25.;     // Circle radius
     float particleHeight = 15.; //(syncs[5] * 40.);
@@ -307,18 +278,18 @@ vec3 shading(vec3 p, vec3 n, vec3 dir, vec3 caPos) {
     //res = opU(res, vec2(sdSphere(p - objPos, sphereRadius), 1.));
 
     lights += addPointLight(objPos, vec3(0.33, 0.91, 0.93), 30.0, p, dir, n);
-*/
-/*
+
     vec3 lightDir = vec3(0., 2., 3);
     float ind = cl(dot(n, no(lightDir * vec3(.0, 1.0, -2.0))), 0.0, 1.0);
     lights += vec3(0.6, 0.6, 0.6) * ind * 0.4;
-*/
 
     outMaterial *= max(vec3(0.), lights); // output with lights;
 
     return outMaterial;
 }
+*/
 
+/*
 vec3 postProcess(vec3 col) {
     // Contrast
     float contrast = 0.85;
@@ -339,6 +310,7 @@ vec3 postProcess(vec3 col) {
 
     return col;
 }
+*/
 
 //////////////////
 //   RENDERING  //
@@ -369,7 +341,7 @@ vec3 render(vec2 uv) {
         vec3 mat = pal(hitPos.y*hitPos.y*0.01);
 
         //vec3 lights = vec3(0.);
-        vec3 lights = addPointLight(vec3(0., 20.0, 0.), vec3(0.7, 0.3, 0.7), 15.0, hitPos, rayDir, nor);
+        vec3 lights = addPointLight(vec3(0., 20.0, 0.), vec3(0.7, 0.3, 0.7), 5.0, hitPos, rayDir, nor);
         mat *= max(vec3(0.), lights); // output with lights;
         col = mat;
     }
@@ -379,22 +351,27 @@ vec3 render(vec2 uv) {
     float bGlowDistance = 0.8;
     vec3 p = camPos + t.x * rayDir;
 
-    vec3 bGlowLevel = bGlowColor * exp(-(p.y + 0.0) / bGlowDistance) * 10000.;
+    vec3 bGlowLevel = bGlowColor * exp(-(p.y + 0.0) / bGlowDistance) * 9e3;
     col += bGlowLevel;
     col = clamp(mix(bGlowLevel, col, t.z), 0.0, 1.0);
 
     // distance fog + bass thunder
-    /*
-    float fogAmount = 0.01;
-    col = col * exp(-t.x * fogAmount) + applyFog(col, t.x, rayDir, vec3(0., -0.5, 1.8), fogAmount) * (1.0 - exp(-t.x * fogAmount));
-    */
-    
+    vec3 fogColor = vec3(0.1, 0.2, 0.3); // light gray-blue fog
+    float fogDensity = 5e-3;
+
+    col = applyFog(col, t.x, fogColor, fogDensity);
+    //float fogAmount = 0.01;
+    //col = col * exp(-t.x * fogAmount) + applyFog(col, t.x, rayDir, vec3(0., -0.5, 1.8), fogAmount) * (1.0 - exp(-t.x * fogAmount));    
 
     return col;
 }
 
 void main() {
     vec3 finalColor = render(getUV());
-    finalColor = postProcess(finalColor);
+    //finalColor = postProcess(finalColor);
+
+    finalColor = mix(finalColor, smoothstep(0.0, 1.0, finalColor), 0.8); // contrast
+    finalColor = pow(finalColor, vec3(.4)); // gamma 2.2
+
     o = vec4(finalColor, 1.);
 }