예제 #1
0
        /*--------------------------------------------------------------------------------------------*/
        public static void BuildHollowRectangleMesh(MeshBuilder pMeshBuild,
            float pOuterW, float pOuterH, float pInnerW, float pInnerH)
        {
            float halfOuterW = pOuterW/2;
            float halfOuterH = pOuterH/2;
            float halfInnerW = pInnerW/2;
            float halfInnerH = pInnerH/2;
            float innerUvMaxX = 0.5f + halfInnerW/halfOuterW/2;
            float innerUvMinX = 0.5f - halfInnerW/halfOuterW/2;
            float innerUvMaxY = 0.5f + halfInnerH/halfOuterH/2;
            float innerUvMinY = 0.5f - halfInnerH/halfOuterH/2;

            pMeshBuild.Resize(8, 24);
            pMeshBuild.ResetIndices();

            pMeshBuild.AddVertex(new Vector3( halfOuterW,  halfOuterH, 0));
            pMeshBuild.AddVertex(new Vector3( halfOuterW, -halfOuterH, 0));
            pMeshBuild.AddVertex(new Vector3(-halfOuterW, -halfOuterH, 0));
            pMeshBuild.AddVertex(new Vector3(-halfOuterW,  halfOuterH, 0));
            pMeshBuild.AddVertex(new Vector3( halfInnerW,  halfInnerH, 0));
            pMeshBuild.AddVertex(new Vector3( halfInnerW, -halfInnerH, 0));
            pMeshBuild.AddVertex(new Vector3(-halfInnerW, -halfInnerH, 0));
            pMeshBuild.AddVertex(new Vector3(-halfInnerW,  halfInnerH, 0));

            pMeshBuild.AddUv(new Vector2(1, 1));
            pMeshBuild.AddUv(new Vector2(1, 0));
            pMeshBuild.AddUv(new Vector2(0, 0));
            pMeshBuild.AddUv(new Vector2(0, 1));
            pMeshBuild.AddUv(new Vector2(innerUvMaxX, innerUvMaxY));
            pMeshBuild.AddUv(new Vector2(innerUvMaxX, innerUvMinY));
            pMeshBuild.AddUv(new Vector2(innerUvMinX, innerUvMinY));
            pMeshBuild.AddUv(new Vector2(innerUvMinX, innerUvMaxY));

            pMeshBuild.AddTriangle(0, 1, 4);
            pMeshBuild.AddTriangle(1, 5, 4);
            pMeshBuild.AddTriangle(1, 2, 5);
            pMeshBuild.AddTriangle(2, 6, 5);
            pMeshBuild.AddTriangle(2, 3, 6);
            pMeshBuild.AddTriangle(3, 7, 6);
            pMeshBuild.AddTriangle(3, 4, 7);
            pMeshBuild.AddTriangle(3, 0, 4);
        }
예제 #2
0
        /*--------------------------------------------------------------------------------------------*/
        public static void BuildCircleMesh(MeshBuilder pMeshBuild, float pRadius, int pSteps)
        {
            const float angleFull = (float)Math.PI*2;
            float angleInc = angleFull/pSteps;
            float angle = 0;

            pMeshBuild.Resize(pSteps+2, pSteps*3);

            pMeshBuild.AddVertex(Vector3.zero);
            pMeshBuild.AddUv(new Vector2(0, 0));

            for ( int i = 0 ; i <= pSteps ; ++i ) {
                pMeshBuild.AddVertex(GetRingPoint(pRadius, angle));
                pMeshBuild.AddUv(new Vector2(i/(float)pSteps, 1));

                if ( i > 0 ) {
                    int vi = pMeshBuild.VertexIndex;
                    pMeshBuild.AddTriangle(0, vi-2, vi-1);
                }

                angle += angleInc;
            }
        }
예제 #3
0
        ////////////////////////////////////////////////////////////////////////////////////////////////
        /*--------------------------------------------------------------------------------------------*/
        public static void BuildQuadMesh(MeshBuilder pMeshBuild, float pSizeX=1, float pSizeY=1)
        {
            float halfSizeX = pSizeX/2;
            float halfSizeY = pSizeY/2;

            pMeshBuild.Resize(4, 6);
            pMeshBuild.ResetIndices();

            pMeshBuild.AddVertex(new Vector3( halfSizeX,  halfSizeY, 0));
            pMeshBuild.AddVertex(new Vector3( halfSizeX, -halfSizeY, 0));
            pMeshBuild.AddVertex(new Vector3(-halfSizeX, -halfSizeY, 0));
            pMeshBuild.AddVertex(new Vector3(-halfSizeX,  halfSizeY, 0));

            pMeshBuild.AddUv(new Vector2(1, 1));
            pMeshBuild.AddUv(new Vector2(1, 0));
            pMeshBuild.AddUv(new Vector2(0, 0));
            pMeshBuild.AddUv(new Vector2(0, 1));

            pMeshBuild.AddTriangle(0, 1, 2);
            pMeshBuild.AddTriangle(0, 2, 3);
        }
예제 #4
0
        /*--------------------------------------------------------------------------------------------*/
        public static void BuildRingMesh(MeshBuilder pMeshBuild, float pInnerRadius, float pOuterRadius,
            float pAngle0, float pAngle1, Vector3 pInnerOffset, Vector3 pOuterOffset, int pSteps)
        {
            float angleFull = pAngle1-pAngle0;
            float angleInc = angleFull/pSteps;
            float angle = pAngle0;

            pMeshBuild.Resize((pSteps+1)*2, pSteps*6);
            pMeshBuild.ResetIndices();

            for ( int i = 0 ; i <= pSteps ; ++i ) {
                float uvx = i/(float)pSteps;

                pMeshBuild.AddVertex(pInnerOffset+GetRingPoint(pInnerRadius, angle));
                pMeshBuild.AddVertex(pOuterOffset+GetRingPoint(pOuterRadius, angle));

                pMeshBuild.AddUv(new Vector2(uvx, 0));
                pMeshBuild.AddUv(new Vector2(uvx, 1));

                if ( i > 0 ) {
                    int vi = pMeshBuild.VertexIndex;
                    pMeshBuild.AddTriangle(vi-3, vi-4, vi-2);
                    pMeshBuild.AddTriangle(vi-1, vi-3, vi-2);
                }

                angle += angleInc;
            }
        }
예제 #5
0
        /*--------------------------------------------------------------------------------------------*/
        public static void BuildRectangleMesh(MeshBuilder pMeshBuild, float pWidth, float pHeight, 
																						float pAmount)
        {
            float fullW;
            float fullH;

            if ( pWidth >= pHeight ) {
                fullH = pHeight*pAmount;
                fullW = pWidth-(pHeight-fullH);
            }
            else {
                fullW = pWidth*pAmount;
                fullH = pHeight-(pWidth-fullW);
            }

            float halfW = fullW/2f;
            float halfH = fullH/2f;

            pMeshBuild.Resize(4, 6);
            pMeshBuild.ResetIndices();

            pMeshBuild.AddVertex(new Vector3( halfW,  halfH, 0));
            pMeshBuild.AddVertex(new Vector3( halfW, -halfH, 0));
            pMeshBuild.AddVertex(new Vector3(-halfW, -halfH, 0));
            pMeshBuild.AddVertex(new Vector3(-halfW,  halfH, 0));

            pMeshBuild.AddUv(new Vector2(1, 1));
            pMeshBuild.AddUv(new Vector2(1, 0));
            pMeshBuild.AddUv(new Vector2(0, 0));
            pMeshBuild.AddUv(new Vector2(0, 1));

            pMeshBuild.AddTriangle(0, 1, 2);
            pMeshBuild.AddTriangle(0, 2, 3);

            pMeshBuild.AddRemainingUvs(Vector2.zero);
        }