# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1388528637 -7200
# Node ID 450d4c50470f4d99e5ab8c9ba755b92137d73f85
# Parent  70b9370081343efc059a6ffdc36829785d621067
- 16bit floating point textures halve gpu texture memory usage
- slower transfer function change

diff -r 70b937008134 -r 450d4c50470f src/volray.cc
--- a/src/volray.cc	Sun Apr 15 07:19:01 2012 +0300
+++ b/src/volray.cc	Wed Jan 01 00:23:57 2014 +0200
@@ -338,7 +338,7 @@
 		return;
 
 	xfer_mean += dx / (float)max_x;
-	xfer_sdev += 0.5 * dy / (float)max_y;
+	xfer_sdev += 0.1 * dy / (float)max_y;
 
 	xfer_mean = xfer_mean < 0.0 ? 0.0 : (xfer_mean > 1.0 ? 1.0 : xfer_mean);
 	xfer_sdev = xfer_sdev < 0.0 ? 0.0 : (xfer_sdev > 1.0 ? 1.0 : xfer_sdev);
diff -r 70b937008134 -r 450d4c50470f src/volume.cc
--- a/src/volume.cc	Sun Apr 15 07:19:01 2012 +0300
+++ b/src/volume.cc	Wed Jan 01 00:23:57 2014 +0200
@@ -36,7 +36,7 @@
 	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 	glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
-	glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA32F_ARB, xsz, ysz, zsz, 0, GL_RGBA, GL_FLOAT, data);
+	glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA16F_ARB, xsz, ysz, zsz, 0, GL_RGBA, GL_FLOAT, data);
 }
 
 bool Volume::load(const char *fname)