dynamically allocate memory when generating noise texture

src/gfx.c

@@ -214,7 +214,7 @@ GLuint createNoiseTexture(int width, int height)
     int length = width*height*channels;
     printf("generating %d random floats\n", length);
 
-    float data[width*height*channels];
+    float* data = (float*)malloc(length*sizeof(float));
 
     for (int i = 0; i < length; i++)
     {
@@ -225,6 +225,8 @@ GLuint createNoiseTexture(int width, int height)
     glBindImageTexture(0, texture, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA32F);
     glGenerateMipmap(GL_TEXTURE_2D);
 
+    free(data);
+
     return texture;
 }