// ================================================================================================ // // This file is part of the CAMPVis Software Framework. // // If not explicitly stated otherwise: Copyright (C) 2012, all rights reserved, // Christian Schulte zu Berge // Chair for Computer Aided Medical Procedures // Technische Universität München // Boltzmannstr. 3, 85748 Garching b. München, Germany // For a full list of authors and contributors, please refer to the file "AUTHORS.txt". // // The licensing of this softare is not yet resolved. Until then, redistribution in source or // binary forms outside the CAMP chair is not permitted, unless explicitly stated in legal form. // However, the names of the original authors and the above copyright notice must retain in its // original state in any case. // // Legal disclaimer provided by the BSD license: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY // AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE // POSSIBILITY OF SUCH DAMAGE. // // ================================================================================================ in vec3 ex_TexCoord; out vec4 out_Color; #include "tools/texture3d.frag" #include "tools/transferfunction.frag" uniform sampler3D _texture; uniform TextureParameters3D _textureParams; uniform sampler1D _transferFunction; uniform TFParameters1D _transferFunctionParams; void main() { float intensity = texture(_texture, ex_TexCoord).r; out_Color = lookupTF(_transferFunction, _transferFunctionParams, intensity); // don't write fragment if fully transparent (in particular don't write to depth buffer!) if (out_Color == 0.0) discard; }