[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [57335] branches/soc-2013-dingto/intern/ cycles/kernel/svm/svm_wavelength.h: Cycles / Wavelength Node:
Thomas Dinges
blender at dingto.org
Mon Jun 10 10:28:39 CEST 2013
Revision: 57335
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=57335
Author: dingto
Date: 2013-06-10 08:28:39 +0000 (Mon, 10 Jun 2013)
Log Message:
-----------
Cycles / Wavelength Node:
* Fix for OpenCL compilation, tested with Intel and nVidia. It didn't like an implicit double promotion.
* Some small variable renaming.
Modified Paths:
--------------
branches/soc-2013-dingto/intern/cycles/kernel/svm/svm_wavelength.h
Modified: branches/soc-2013-dingto/intern/cycles/kernel/svm/svm_wavelength.h
===================================================================
--- branches/soc-2013-dingto/intern/cycles/kernel/svm/svm_wavelength.h 2013-06-10 05:18:45 UTC (rev 57334)
+++ branches/soc-2013-dingto/intern/cycles/kernel/svm/svm_wavelength.h 2013-06-10 08:28:39 UTC (rev 57335)
@@ -73,27 +73,27 @@
};
float lambda_nm = stack_load_float(stack, wavelength);
- float3 rgb;
-
float ii = (lambda_nm-380.0f) / 5.0f; // scaled 0..80
int i = float_to_int(ii);
+ float3 color;
+
if (i < 0 || i >= 80) {
- rgb = make_float3(0.0f, 0.0f, 0.0f);
+ color = make_float3(0.0f, 0.0f, 0.0f);
}
else {
ii -= i;
float *c = cie_colour_match[i];
- rgb = lerp_interp(make_float3(c[0], c[1], c[2]), make_float3(c[3], c[4], c[5]), ii);
+ color = lerp_interp(make_float3(c[0], c[1], c[2]), make_float3(c[3], c[4], c[5]), ii);
}
- rgb = xyz_to_rgb(rgb.x, rgb.y, rgb.z);
- rgb *= 1.0/2.52; // Empirical scale from lg to make all comps <= 1
+ color = xyz_to_rgb(color.x, color.y, color.z);
+ color *= 1.0f/2.52f; // Empirical scale from lg to make all comps <= 1
- /* Clamp to Zero if values are smaller */
- rgb = max(rgb, make_float3(0.0f, 0.0f, 0.0f));
+ /* Clamp to zero if values are smaller */
+ color = max(color, make_float3(0.0f, 0.0f, 0.0f));
if(stack_valid(color_out))
- stack_store_float3(stack, color_out, rgb);
+ stack_store_float3(stack, color_out, color);
}
CCL_NAMESPACE_END
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