X-Git-Url: https://git.lukelau.me/?p=clouds.git;a=blobdiff_plain;f=clouds.cpp;h=b8ea3f0071cb0f0e5ce34bdfd48e44b17151edbd;hp=5787181c79fbac832a0984d362a654eaaa6ae619;hb=HEAD;hpb=a90c53f20626319668a89b731879685a8beb07f3

diff --git a/clouds.cpp b/clouds.cpp
index 5787181..b8ea3f0 100644
--- a/clouds.cpp
+++ b/clouds.cpp
@@ -169,8 +169,6 @@ const int shadeWidth = 256, shadeHeight = 256;
 #ifdef PBO
 const int numPbos = 512;
 GLuint pboBufs[numPbos];
-GLuint pboOffsets[numPbos]; // offsets into GL_PIXEL_PACK_BUFFER that
-                            // mapPixelRead should read from
 GLbyte sink[shadeWidth * shadeHeight * 4];
 
 void inline mapPixelRead(int pboBuf, int metaball) {
@@ -178,8 +176,6 @@ void inline mapPixelRead(int pboBuf, int metaball) {
   GLubyte *src =
       (GLubyte *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0,
                                   4 * sizeof(GLubyte), GL_MAP_READ_BIT);
-      /* (GLubyte *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, pboOffsets[pboBuf], */
-      /*                             4 * sizeof(GLubyte), GL_MAP_READ_BIT); */
   vec4 pixel = vec4(src[0], src[1], src[2], src[3]) / vec4(255.f);
   glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
 
@@ -274,10 +270,7 @@ void shadeClouds() {
     /* glReadPixels(screenPos.x, screenPos.y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE,
      */
     /*              NULL); */
-    /* glReadPixels(0, 0, shadeWidth, shadeHeight, GL_RGBA, GL_UNSIGNED_BYTE, */
-    /*              NULL); */
     glReadPixels(screenPos.x, screenPos.y, 64, 64, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
-    /* pboOffsets[pboIdx] = screenPos.x * 4 + screenPos.y * shadeWidth * 4; */
 
     int nextPbo = (pboIdx + 1) % numPbos;
     if (i >= numPbos - 1) {