Move water mesh + simple state generation to components library.

apps/openmw/mwrender/water.cpp

@@ -24,6 +24,8 @@
 #include <components/resource/resourcesystem.hpp>
 #include <components/resource/imagemanager.hpp>
 
+#include <components/sceneutil/waterutil.hpp>
+
 #include <components/nifosg/controller.hpp>
 #include <components/sceneutil/controller.hpp>
 
@@ -40,58 +42,6 @@
 #include "renderbin.hpp"
 #include "util.hpp"
 
-namespace
-{
-
-    osg::ref_ptr<osg::Geometry> createWaterGeometry(float size, int segments, float textureRepeats)
-    {
-        osg::ref_ptr<osg::Vec3Array> verts (new osg::Vec3Array);
-        osg::ref_ptr<osg::Vec2Array> texcoords (new osg::Vec2Array);
-
-        // some drivers don't like huge triangles, so we do some subdivisons
-        // a paged solution would be even better
-        const float step = size/segments;
-        const float texCoordStep = textureRepeats / segments;
-        for (int x=0; x<segments; ++x)
-        {
-            for (int y=0; y<segments; ++y)
-            {
-                float x1 = -size/2.f + x*step;
-                float y1 = -size/2.f + y*step;
-                float x2 = x1 + step;
-                float y2 = y1 + step;
-
-                verts->push_back(osg::Vec3f(x1, y2, 0.f));
-                verts->push_back(osg::Vec3f(x1, y1, 0.f));
-                verts->push_back(osg::Vec3f(x2, y1, 0.f));
-                verts->push_back(osg::Vec3f(x2, y2, 0.f));
-
-                float u1 = x*texCoordStep;
-                float v1 = y*texCoordStep;
-                float u2 = u1 + texCoordStep;
-                float v2 = v1 + texCoordStep;
-
-                texcoords->push_back(osg::Vec2f(u1, v2));
-                texcoords->push_back(osg::Vec2f(u1, v1));
-                texcoords->push_back(osg::Vec2f(u2, v1));
-                texcoords->push_back(osg::Vec2f(u2, v2));
-            }
-        }
-
-        osg::ref_ptr<osg::Geometry> waterGeom (new osg::Geometry);
-        waterGeom->setVertexArray(verts);
-        waterGeom->setTexCoordArray(0, texcoords);
-
-        osg::ref_ptr<osg::Vec3Array> normal (new osg::Vec3Array);
-        normal->push_back(osg::Vec3f(0,0,1));
-        waterGeom->setNormalArray(normal, osg::Array::BIND_OVERALL);
-
-        waterGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,verts->size()));
-        return waterGeom;
-    }
-
-}
-
 namespace MWRender
 {
 
@@ -465,7 +415,7 @@ Water::Water(osg::Group *parent, osg::Group* sceneRoot, Resource::ResourceSystem
 {
     mSimulation.reset(new RippleSimulation(parent, resourceSystem, fallback));
 
-    mWaterGeom = createWaterGeometry(CELL_SIZE*150, 40, 900);
+    mWaterGeom = SceneUtil::createWaterGeometry(CELL_SIZE*150, 40, 900);
     mWaterGeom->setDrawCallback(new DepthClampCallback);
     mWaterGeom->setNodeMask(Mask_Water);
 
@@ -527,26 +477,11 @@ void Water::updateWaterMaterial()
 
 void Water::createSimpleWaterStateSet(osg::Node* node, float alpha)
 {
-    osg::ref_ptr<osg::StateSet> stateset (new osg::StateSet);
-
-    osg::ref_ptr<osg::Material> material (new osg::Material);
-    material->setEmission(osg::Material::FRONT_AND_BACK, osg::Vec4f(0.f, 0.f, 0.f, 1.f));
-    material->setDiffuse(osg::Material::FRONT_AND_BACK, osg::Vec4f(1.f, 1.f, 1.f, alpha));
-    material->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4f(1.f, 1.f, 1.f, 1.f));
-    material->setColorMode(osg::Material::OFF);
-    stateset->setAttributeAndModes(material, osg::StateAttribute::ON);
-
-    stateset->setMode(GL_BLEND, osg::StateAttribute::ON);
-    stateset->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
-
-    osg::ref_ptr<osg::Depth> depth (new osg::Depth);
-    depth->setWriteMask(false);
-    stateset->setAttributeAndModes(depth, osg::StateAttribute::ON);
-
-    stateset->setRenderBinDetails(MWRender::RenderBin_Water, "RenderBin");
+    osg::ref_ptr<osg::StateSet> stateset = SceneUtil::createSimpleWaterStateSet(alpha, MWRender::RenderBin_Water);
 
     node->setStateSet(stateset);
 
+    // Add animated textures
     std::vector<osg::ref_ptr<osg::Texture2D> > textures;
     int frameCount = mFallback->getFallbackInt("Water_SurfaceFrameCount");
     std::string texture = mFallback->getFallbackString("Water_SurfaceTexture");

components/CMakeLists.txt

@@ -50,7 +50,7 @@ add_component_dir (shader
 
 add_component_dir (sceneutil
     clone attach visitor util statesetupdater controller skeleton riggeometry lightcontroller
-    lightmanager lightutil positionattitudetransform workqueue unrefqueue pathgridutil
+    lightmanager lightutil positionattitudetransform workqueue unrefqueue pathgridutil waterutil
     )
 
 add_component_dir (nif

components/sceneutil/waterutil.cpp

@@ -0,0 +1,79 @@
+#include "waterutil.hpp"
+
+#include <osg/Depth>
+#include <osg/Geometry>
+#include <osg/Material>
+#include <osg/StateSet>
+
+namespace SceneUtil
+{
+    osg::ref_ptr<osg::Geometry> createWaterGeometry(float size, int segments, float textureRepeats)
+    {
+        osg::ref_ptr<osg::Vec3Array> verts (new osg::Vec3Array);
+        osg::ref_ptr<osg::Vec2Array> texcoords (new osg::Vec2Array);
+
+        // some drivers don't like huge triangles, so we do some subdivisons
+        // a paged solution would be even better
+        const float step = size/segments;
+        const float texCoordStep = textureRepeats / segments;
+        for (int x=0; x<segments; ++x)
+        {
+            for (int y=0; y<segments; ++y)
+            {
+                float x1 = -size/2.f + x*step;
+                float y1 = -size/2.f + y*step;
+                float x2 = x1 + step;
+                float y2 = y1 + step;
+
+                verts->push_back(osg::Vec3f(x1, y2, 0.f));
+                verts->push_back(osg::Vec3f(x1, y1, 0.f));
+                verts->push_back(osg::Vec3f(x2, y1, 0.f));
+                verts->push_back(osg::Vec3f(x2, y2, 0.f));
+
+                float u1 = x*texCoordStep;
+                float v1 = y*texCoordStep;
+                float u2 = u1 + texCoordStep;
+                float v2 = v1 + texCoordStep;
+
+                texcoords->push_back(osg::Vec2f(u1, v2));
+                texcoords->push_back(osg::Vec2f(u1, v1));
+                texcoords->push_back(osg::Vec2f(u2, v1));
+                texcoords->push_back(osg::Vec2f(u2, v2));
+            }
+        }
+
+        osg::ref_ptr<osg::Geometry> waterGeom (new osg::Geometry);
+        waterGeom->setVertexArray(verts);
+        waterGeom->setTexCoordArray(0, texcoords);
+
+        osg::ref_ptr<osg::Vec3Array> normal (new osg::Vec3Array);
+        normal->push_back(osg::Vec3f(0,0,1));
+        waterGeom->setNormalArray(normal, osg::Array::BIND_OVERALL);
+
+        waterGeom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,verts->size()));
+        return waterGeom;
+    }
+
+    osg::ref_ptr<osg::StateSet> createSimpleWaterStateSet(float alpha, int renderBin)
+    {
+        osg::ref_ptr<osg::StateSet> stateset (new osg::StateSet);
+
+        osg::ref_ptr<osg::Material> material (new osg::Material);
+        material->setEmission(osg::Material::FRONT_AND_BACK, osg::Vec4f(0.f, 0.f, 0.f, 1.f));
+        material->setDiffuse(osg::Material::FRONT_AND_BACK, osg::Vec4f(1.f, 1.f, 1.f, alpha));
+        material->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4f(1.f, 1.f, 1.f, 1.f));
+        material->setColorMode(osg::Material::OFF);
+        stateset->setAttributeAndModes(material, osg::StateAttribute::ON);
+
+        stateset->setMode(GL_BLEND, osg::StateAttribute::ON);
+        stateset->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
+
+        osg::ref_ptr<osg::Depth> depth (new osg::Depth);
+        depth->setWriteMask(false);
+        stateset->setAttributeAndModes(depth, osg::StateAttribute::ON);
+
+        stateset->setRenderBinDetails(renderBin, "RenderBin");
+
+        return stateset;
+    }
+}

components/sceneutil/waterutil.hpp

@@ -0,0 +1,19 @@
+#ifndef OPENMW_COMPONENTS_WATERUTIL_H
+#define OPENMW_COMPONENTS_WATERUTIL_H
+
+#include <osg/ref_ptr>
+
+namespace osg
+{
+    class Geometry;
+    class StateSet;
+}
+
+namespace SceneUtil
+{
+    osg::ref_ptr<osg::Geometry> createWaterGeometry(float size, int segments, float textureRepeats);
+
+    osg::ref_ptr<osg::StateSet> createSimpleWaterStateSet(float alpha, int renderBin);
+}
+
+#endif