1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
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4 | * |
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5 | */ |
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6 | #include "RegularVolumeShader.h" |
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7 | |
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8 | using namespace nv; |
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9 | |
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10 | RegularVolumeShader::RegularVolumeShader() |
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11 | { |
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12 | init(); |
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13 | } |
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14 | |
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15 | RegularVolumeShader::~RegularVolumeShader() |
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16 | { |
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17 | } |
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18 | |
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19 | void RegularVolumeShader::init() |
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20 | { |
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21 | loadFragmentProgram("one_volume.cg"); |
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22 | } |
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23 | |
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24 | void RegularVolumeShader::bind(unsigned int tfID, Volume *volume, |
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25 | int sliceMode, float sampleRatio) |
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26 | { |
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27 | //regular cubic volume |
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28 | setGLStateMatrixFPParameter("modelViewInv", MODELVIEW_MATRIX, |
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29 | MATRIX_INVERSE); |
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30 | setGLStateMatrixFPParameter("modelView", MODELVIEW_MATRIX, |
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31 | MATRIX_IDENTITY); |
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32 | |
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33 | setFPTextureParameter("volume", volume->textureID()); |
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34 | setFPTextureParameter("tf", tfID); |
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35 | |
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36 | setFPParameter4f("material", |
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37 | volume->ambient(), |
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38 | volume->diffuse(), |
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39 | volume->specularLevel(), |
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40 | volume->specularExponent()); |
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41 | |
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42 | setFPParameter4f("renderParams", |
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43 | (sliceMode ? 0.0f : sampleRatio), |
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44 | volume->isosurface(), |
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45 | volume->opacityScale(), |
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46 | (volume->twoSidedLighting() ? 1.0f : 0.0f)); |
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47 | |
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48 | Shader:: bind(); |
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49 | } |
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50 | |
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51 | void RegularVolumeShader::unbind() |
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52 | { |
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53 | disableFPTextureParameter("volume"); |
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54 | disableFPTextureParameter("tf"); |
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55 | |
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56 | Shader::unbind(); |
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57 | } |
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