コード例 #1
0
        private void DrawTriangle(Vertex v1, Vertex v2, Vertex v3, Matrix4x4 m, Matrix4x4 v, Matrix4x4 p)
        {
            SetModelToWorld(m, ref v1);
            SetModelToWorld(m, ref v2);
            SetModelToWorld(m, ref v3);


            Light.BaseLight(m, light, mesh, camera.eyePosition, ambientColor, ref v1);
            Light.BaseLight(m, light, mesh, camera.eyePosition, ambientColor, ref v2);
            Light.BaseLight(m, light, mesh, camera.eyePosition, ambientColor, ref v3);

            SetWorldToCamera(v, ref v1);
            SetWorldToCamera(v, ref v2);
            SetWorldToCamera(v, ref v3);

            //在相机空间进行背面消隐
            if (Camera.BackFaceCulling(v1, v2, v3) == false)
            {
                return;
            }
            SetProjectionTransform(p, ref v1);
            SetProjectionTransform(p, ref v2);
            SetProjectionTransform(p, ref v3);
            //超出屏幕外剔除
            if (Exclude(v1) == false && Exclude(v2) == false && Exclude(v3) == false)
            {
                return;
            }

            TransformToScreen(ref v1);
            TransformToScreen(ref v2);
            TransformToScreen(ref v3);

            if (isCull)
            {
                List <Triangle> outValue;
                CubeClip(new Triangle(v1, v2, v3), out outValue);
                for (int i = 0; i < outValue.Count; i++)
                {
                    Rasterization(outValue[i][0], outValue[i][1], outValue[i][2]);
                }
                //Rasterization(p1, p2, p3);
            }
            else
            {
                Rasterization(v1, v2, v3);
            }

            //TriangleRasterization(v1,v2,v3);
        }