Changeset 2925 for trunk

Timestamp:

Apr 1, 2012 11:00:40 PM (12 years ago)

Author:

ldelgass

Message:

use vector math ops in render_vel.cg

File:

• trunk/packages/vizservers/nanovis/shaders/render_vel.cg (modified) (1 diff)

trunk/packages/vizservers/nanovis/shaders/render_vel.cg

@@ -21 +21 @@
             uniform float vmax) : COLOR
 {
-    float3 ret;
-
     //float4 vel = float4(tex3D(vel_tex, uvw).xyz, 0) - float4(0.5, 0.5, 0.5, 0.0);
     float4 vel = float4(tex3D(vel_tex, uvw).yzw, 0) - float4(0.5, 0.5, 0.5, 0.0);
-    vel.x = vel.x * (vmax * 2);
-    vel.y = vel.y * (vmax * 2);
-    vel.z = vel.z * (vmax * 2);
-    ret.x = plane_normal.x * vel.x * 0.0005;
-    ret.y = plane_normal.y * vel.y * 0.0005;
-    ret.z = plane_normal.z * vel.z * 0.0005;
+    vel = vel * (vmax * 2);
+    float4 ret = plane_normal * vel * 0.0005;
 
-    return float4(ret, 1);
+    return float4(ret.xyz, 1);
 }