1 files changed, 36 insertions, 1 deletions

diff --git a/src/renderergl2/tr_bsp.c b/src/renderergl2/tr_bsp.c
index d2a5f5f2..81463c66 100644
--- a/src/renderergl2/tr_bsp.c
+++ b/src/renderergl2/tr_bsp.c
@@ -3068,16 +3068,23 @@ void R_AssignCubemapsToWorldSurfaces(void)
 	}
 }
 
+// FIXME: put this function declaration elsewhere
+void R_SaveDDS(const char *filename, byte *pic, int width, int height, int depth);
 
 void R_RenderAllCubemaps(void)
 {
+	byte *data = NULL;
+	int sideSize = CUBE_MAP_SIZE * CUBE_MAP_SIZE * 4;
 	int i, j;
 
 	for (i = 0; i < tr.numCubemaps; i++)
 	{
 		tr.cubemaps[i].image = R_CreateImage(va("*cubeMap%d", i), NULL, CUBE_MAP_SIZE, CUBE_MAP_SIZE, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE | IMGFLAG_MIPMAP | IMGFLAG_CUBEMAP, GL_RGBA8);
 	}
-	
+
+	if (r_exportCubemaps->integer)
+		data = ri.Malloc(sideSize * 6);
+
 	for (i = 0; i < tr.numCubemaps; i++)
 	{
 		for (j = 0; j < 6; j++)
@@ -3087,6 +3094,34 @@ void R_RenderAllCubemaps(void)
 			R_IssuePendingRenderCommands();
 			R_InitNextFrame();
 		}
+
+		if (r_exportCubemaps->integer)
+		{
+			char filename[MAX_QPATH];
+			byte *p;
+			cubemap_t *cubemap = &tr.cubemaps[i];
+
+			// FIXME: do this in backEnd
+			FBO_Bind(tr.renderCubeFbo);
+
+			p = data;
+			for (j = 0; j < 6; j++)
+			{
+				qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X + j, cubemap->image->texnum, 0);
+				qglReadPixels(0, 0, CUBE_MAP_SIZE, CUBE_MAP_SIZE, GL_RGBA, GL_UNSIGNED_BYTE, p);
+				p += sideSize;
+			}
+			FBO_Bind(NULL);
+
+			Com_sprintf(filename, MAX_QPATH, "cubemaps/%s/%03d.dds", tr.world->baseName, backEnd.viewParms.targetFboCubemapIndex);
+			R_SaveDDS(filename, data, CUBE_MAP_SIZE, CUBE_MAP_SIZE, 6);
+		}
+	}
+
+	if (r_exportCubemaps->integer)
+	{
+		ri.Cvar_Set("r_exportCubemaps", "0");
+		ri.Free(data);
 	}
 }