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 "NvZincBlendeVolumeShader.h" |
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7 | |
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8 | NvZincBlendeVolumeShader::NvZincBlendeVolumeShader() |
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9 | { |
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10 | init(); |
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11 | } |
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12 | |
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13 | NvZincBlendeVolumeShader::~NvZincBlendeVolumeShader() |
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14 | { |
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15 | } |
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16 | |
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17 | void NvZincBlendeVolumeShader::init() |
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18 | { |
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19 | loadFragmentProgram("zincblende_volume.cg", "main"); |
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20 | } |
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21 | |
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22 | void NvZincBlendeVolumeShader::bind(unsigned int tfID, Volume *volume, |
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23 | int sliceMode, float sampleRatio) |
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24 | { |
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25 | ZincBlendeVolume *vol = (ZincBlendeVolume *)volume; |
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26 | setGLStateMatrixFPParameter("modelViewInv", MODELVIEW_MATRIX, |
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27 | MATRIX_INVERSE); |
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28 | |
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29 | setFPTextureParameter("tf", tfID); |
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30 | setFPTextureParameter("volumeA", vol->zincblendeTex[0]->id()); |
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31 | setFPTextureParameter("volumeB", vol->zincblendeTex[1]->id()); |
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32 | |
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33 | setFPParameter4f("cellSize", |
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34 | vol->cellSize.x, |
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35 | vol->cellSize.y, |
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36 | vol->cellSize.z, 0.); |
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37 | |
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38 | setFPParameter4f("renderParams", |
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39 | (sliceMode ? 0.0f : sampleRatio), |
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40 | volume->isosurface(), |
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41 | volume->opacityScale(), |
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42 | 0.0f); |
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43 | |
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44 | NvShader::bind(); |
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45 | } |
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46 | |
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47 | void NvZincBlendeVolumeShader::unbind() |
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48 | { |
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49 | disableFPTextureParameter("tf"); |
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50 | disableFPTextureParameter("volumeA"); |
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51 | disableFPTextureParameter("volumeB"); |
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52 | |
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53 | NvShader::unbind(); |
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54 | } |
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