Exemplo n.º 1
0
        public void render(warp_Camera cam)
        {
            rasterizer.rebuildReferences(this);

            warp_Math.clearBuffer(zBuffer, zFar);
            //System.Array.Copy(screen.zBuffer,0,zBuffer,0,zBuffer.Length);

            if (scene.environment.background != null)
            {
                screen.drawBackground(scene.environment.background, 0, 0, screen.width, screen.height);
            }
            else
            {
                screen.clear(scene.environment.bgcolor);
            }

            cam.setScreensize(screen.width, screen.height);
            scene.prepareForRendering();
            emptyQueues();

            // Project
            warp_Matrix   m = warp_Matrix.multiply(cam.getMatrix(), scene.matrix);
            warp_Matrix   nm = warp_Matrix.multiply(cam.getNormalMatrix(), scene.normalmatrix);
            warp_Matrix   vertexProjection, normalProjection;
            warp_Object   obj;
            warp_Triangle t;
            warp_Vertex   v;
            warp_Material objmaterial;
            const double  log2inv = 1.4426950408889634073599246810019;
            int           w       = screen.width;
            int           h       = screen.height;
            int           minx;
            int           miny;
            int           maxx;
            int           maxy;

            for (int id = 0; id < scene.objects; ++id)
            {
                obj         = scene.wobject[id];
                objmaterial = obj.material;
                if (objmaterial == null)
                {
                    continue;
                }
                if (!obj.visible)
                {
                    continue;
                }
                if (objmaterial.opaque && objmaterial.reflectivity == 0)
                {
                    continue;
                }

                vertexProjection = obj.matrix.getClone();
                normalProjection = obj.normalmatrix.getClone();
                vertexProjection.transform(m);
                normalProjection.transform(nm);
                minx = int.MaxValue;
                miny = int.MaxValue;
                maxx = int.MinValue;
                maxy = int.MinValue;

                for (int i = 0; i < obj.vertices; ++i)
                {
                    v = obj.fastvertex[i];
                    v.project(vertexProjection, normalProjection, cam);
                    v.clipFrustrum(w, h);
                    if (minx > v.x)
                    {
                        minx = v.x;
                    }
                    if (maxx < v.x)
                    {
                        maxx = v.x;
                    }
                    if (miny > v.y)
                    {
                        miny = v.y;
                    }
                    if (maxy < v.y)
                    {
                        maxy = v.y;
                    }
                }
                maxx -= minx;
                maxy -= miny;
                if (maxy > maxx)
                {
                    maxx = maxy + 1;
                }
                else
                {
                    maxx++;
                }

                obj.projectedmaxMips = (int)Math.Ceiling((Math.Log(maxx) * log2inv));
                obj.cacheMaterialData();
                if (objmaterial.opaque)
                {
                    rasterizer.loadFastMaterial(obj);
                    for (int i = 0; i < obj.triangles; ++i)
                    {
                        t = obj.fasttriangle[i];
                        t.project(normalProjection);
                        if (t.clipFrustrum(w, h))
                        {
                            rasterizer.render(t);
                        }
                    }
                }
                else
                {
                    for (int i = 0; i < obj.triangles; ++i)
                    {
                        t = obj.fasttriangle[i];
                        t.project(normalProjection);
                        if (t.clipFrustrum(w, h))
                        {
                            transparentQueue.Add(t);
                        }
                    }
                }
            }

            //screen.lockImage();

            warp_Triangle[] tri;
            obj = null;
            tri = getTransparentQueue();
            if (tri != null)
            {
                transparentQueue.Clear();
                for (int i = 0; i < tri.GetLength(0); i++)
                {
                    if (obj != tri[i].parent)
                    {
                        obj = tri[i].parent;
                        rasterizer.loadFastMaterial(obj);
                    }
                    rasterizer.render(tri[i]);
                }
            }

            //screen.unlockImage();
        }
Exemplo n.º 2
0
        public float EstimateBoxProjectedArea(warp_Vector pos, warp_Vector size, warp_Matrix rotation)
        {
            warp_Matrix om = new warp_Matrix();

            om.scale(size.x, size.y, size.z);
            om.transform(rotation);

            float xmax;
            float ymax;

            /*
             * if (defaultCamera.isOrthographic)
             * {
             *  xmax = Math.Abs(om.m00);
             *  ymax = Math.Abs(om.m22);
             *  if (xmax < 1f || ymax < 1f)
             *      return -1;
             *  return xmax * ymax / (width * height);
             * }
             */
            om.m03 = pos.x;
            om.m13 = pos.y;
            om.m23 = pos.z;
            warp_Vector side;
            warp_Vector v;
            float       xmin;
            float       ymin;

            warp_Matrix m = warp_Matrix.multiply(defaultCamera.getMatrix(), matrix);

            om.transform(m);

            float zmin;

            side = new warp_Vector(-1f, -1f, -1f);
            v    = side.transform(om);
            xmin = v.x;
            xmax = xmin;
            ymin = v.y;
            ymax = ymin;
            zmin = v.z;

            side.x = 1f;
            v      = side.transform(om);
            if (xmin > v.x)
            {
                xmin = v.x;
            }
            else if (xmax < v.x)
            {
                xmax = v.x;
            }
            if (ymin > v.y)
            {
                ymin = v.y;
            }
            else if (ymax < v.y)
            {
                ymax = v.y;
            }
            if (zmin > v.z)
            {
                zmin = v.z;
            }

            side.x = -1f;
            side.y = 1f;
            v      = side.transform(om);
            if (xmin > v.x)
            {
                xmin = v.x;
            }
            else if (xmax < v.x)
            {
                xmax = v.x;
            }
            if (ymin > v.y)
            {
                ymin = v.y;
            }
            else if (ymax < v.y)
            {
                ymax = v.y;
            }
            if (zmin > v.z)
            {
                zmin = v.z;
            }

            side.x = 1f;
            v      = side.transform(om);
            if (xmin > v.x)
            {
                xmin = v.x;
            }
            else if (xmax < v.x)
            {
                xmax = v.x;
            }
            if (ymin > v.y)
            {
                ymin = v.y;
            }
            else if (ymax < v.y)
            {
                ymax = v.y;
            }
            if (zmin > v.z)
            {
                zmin = v.z;
            }

            side.x = -1f;
            side.y = -1f;
            side.z = 1f;
            v      = side.transform(om);
            if (xmin > v.x)
            {
                xmin = v.x;
            }
            else if (xmax < v.x)
            {
                xmax = v.x;
            }
            if (ymin > v.y)
            {
                ymin = v.y;
            }
            else if (ymax < v.y)
            {
                ymax = v.y;
            }
            if (zmin > v.z)
            {
                zmin = v.z;
            }

            side.x = 1f;
            v      = side.transform(om);
            if (xmin > v.x)
            {
                xmin = v.x;
            }
            else if (xmax < v.x)
            {
                xmax = v.x;
            }
            if (ymin > v.y)
            {
                ymin = v.y;
            }
            else if (ymax < v.y)
            {
                ymax = v.y;
            }
            if (zmin > v.z)
            {
                zmin = v.z;
            }

            side.x = -1f;
            side.y = 1f;
            v      = side.transform(om);
            if (xmin > v.x)
            {
                xmin = v.x;
            }
            else if (xmax < v.x)
            {
                xmax = v.x;
            }
            if (ymin > v.y)
            {
                ymin = v.y;
            }
            else if (ymax < v.y)
            {
                ymax = v.y;
            }
            if (zmin > v.z)
            {
                zmin = v.z;
            }

            side.x = 1f;
            v      = side.transform(om);
            if (xmin > v.x)
            {
                xmin = v.x;
            }
            else if (xmax < v.x)
            {
                xmax = v.x;
            }
            if (ymin > v.y)
            {
                ymin = v.y;
            }
            else if (ymax < v.y)
            {
                ymax = v.y;
            }
            if (zmin > v.z)
            {
                zmin = v.z;
            }


            xmax -= xmin;
            ymax -= ymin;

            if (xmax < 1f || ymax < 1f)
            {
                return(-1);
            }
            return(xmax * ymax / (width * height));
        }