Changeset 3875 for trunk/packages/vizservers/nanovis/VelocityArrowsSlice.cpp

Timestamp:

Aug 20, 2013 5:52:39 PM (11 years ago)

Author:

ldelgass

Message:

Add config.h option USE_ARB_PROGRAMS, which will use ARB_vertex/fragment_program
extensions as the Cg compile target instead of NV_vertex_program3 and
NV_fragment_program2. Note that glyph texture style rendering in flows will not
work if this define is set (however, the default style is line arrows which will
work).

File:

• trunk/packages/vizservers/nanovis/VelocityArrowsSlice.cpp (modified) (4 diffs)

trunk/packages/vizservers/nanovis/VelocityArrowsSlice.cpp

@@ -65 +65 @@
     _queryVelocityFP.loadFragmentProgram("queryvelocity.cg");
 
-    _particleShader.loadVertexProgram("velocityslicevp.cg");
-    _particleShader.loadFragmentProgram("velocityslicefp.cg");
+    // Delay loading of shaders only required for glyph style rendering
+    if (_renderMode == GLYPHS) {
+        _particleShader.loadVertexProgram("velocityslicevp.cg");
+        _particleShader.loadFragmentProgram("velocityslicefp.cg");
+    }
 
     createRenderTarget();
@@ -362 +365 @@
                     continue;
                 }
-                if (length > 1.0e-6) {
+                if (length > 0.0) {
                     Vector3f vnorm = vel.normalize();
                     Vector3f rotationAxis = refVec.cross(vnorm);
@@ -414 +417 @@
         glTexEnvf(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
 
+        // FIXME: This vertex shader won't compile with ARB_vertex_program,
+        // so it should use GLSL
+        if (!_particleShader.isVertexProgramLoaded()) {
+            _particleShader.loadVertexProgram("velocityslicevp.cg");
+        }
+        if (!_particleShader.isFragmentProgramLoaded()) {
+            _particleShader.loadFragmentProgram("velocityslicefp.cg");
+        }
+
         _particleShader.bind();
         _particleShader.setVPTextureParameter("vfield", _vectorFieldGraphicsID);
@@ -458 +470 @@
     Vector3f bmin, bmax;
     volume->getBounds(bmin, bmax);
-    _origin = bmin;
+    _origin.set(bmin.x, bmin.y, bmin.z);
     _scale.set(bmax.x-bmin.x, bmax.y-bmin.y, bmax.z-bmin.z);