mirror of
https://github.com/OpenSpace/OpenSpace.git
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c4781b01de
* Physically-based star rendering. * New Tully Pic Galaxies speck file w/o Milky Way * Removed PSC from stars rendering. * Avoiding extra calculations during shading. * Removed bug in billboard maximum size code. * New method to get the current viewport resolution. Used e.g. when rendering stereo side-by-side configuration. * Same as stereo stars. * Improved configuration. * Stars camera orientation. * Separated changes in billboards. * Adde min size control. * Setting minimum size. * Changed eye position. Changed data array nome inside shaders to a more accurate representation of the data. * Billboards reflecting actual stars sizes. * Scaling stars size based on luminosity, Abs Mag and size. * Rendering to a texture instead of fragment calculation for each star. * Added default parameters, new configurations and updated parameters. * Updated speck file handling to reflect a more general specification. * Added apparent magnitude from the speck files. * Set correct star values values for Apogee and Galah * Changed position from vec4 to vec3 to save GPU memory.
77 lines
4.5 KiB
GLSL
77 lines
4.5 KiB
GLSL
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2019 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#version __CONTEXT__
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out vec4 renderTableColor;
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in vec2 psfCoords;
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in vec2 texturesCoords;
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uniform int psfTextureSize;
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uniform int convolvedfTextureSize;
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uniform sampler2D psfTexture;
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uniform sampler2D shapeTexture;
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void main(void) {
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float fullColor = 0.0;
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// Kernel Center
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//vec2 psfTextureCoords = vec2((float(psfTextureSize)/2.0 + 1.0) / float(psfTextureSize));
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// fullColor += texture2D(shapeTexture, texturesCoords) *
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// texture2D(psfTexture, psfTextureCoords);
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float maxConvSize = float(psfTextureSize);
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float convStep = 1.0 / maxConvSize;
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float textureStep = 1.0 / float(convolvedfTextureSize);
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for (float i = 0.0, ii = 0.0; i < maxConvSize; i += convStep, ii += textureStep) {
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for (float j = 0.0, jj = 0.0; j < maxConvSize; j += convStep, jj += textureStep) {
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vec2 newTexCoords = texturesCoords;
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newTexCoords.x = i < 0.5 ? texturesCoords.x - ii : texturesCoords.x + ii;
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newTexCoords.y = j < 0.5 ? texturesCoords.y - jj : texturesCoords.y + jj;
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newTexCoords.x = newTexCoords.x > 1.0 ? 1.0 : newTexCoords.x < 0.0 ? 0.0 : newTexCoords.x;
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newTexCoords.y = newTexCoords.y > 1.0 ? 1.0 : newTexCoords.y < 0.0 ? 0.0 : newTexCoords.y;
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fullColor += texture2D(shapeTexture, newTexCoords).x *
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texture2D(psfTexture, vec2(i, j)).x;
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}
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}
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/*
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vec2 onePixel = vec2(1.0, 1.0) / float(psfTextureSize);
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vec4 fullColor =
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texture2D(shapeTexture, texturesCoords + onePixel * vec2(-1, -1)) * texture2D(psfTexture, vec2(i, j)) +
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texture2D(shapeTexture, texturesCoords + onePixel * vec2( 0, -1)) * texture2D(psfTexture, vec2(i, j)) +
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texture2D(shapeTexture, texturesCoords + onePixel * vec2( 1, -1)) * texture2D(psfTexture, vec2(i, j)) +
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texture2D(shapeTexture, texturesCoords + onePixel * vec2(-1, 0)) * texture2D(psfTexture, vec2(i, j)) +
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texture2D(shapeTexture, texturesCoords + onePixel * vec2( 0, 0)) * texture2D(psfTexture, vec2(i, j)) +
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texture2D(shapeTexture, texturesCoords + onePixel * vec2( 1, 0)) * texture2D(psfTexture, vec2(i, j)) +
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texture2D(shapeTexture, texturesCoords + onePixel * vec2(-1, 1)) * texture2D(psfTexture, vec2(i, j)) +
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texture2D(shapeTexture, texturesCoords + onePixel * vec2( 0, 1)) * texture2D(psfTexture, vec2(i, j)) +
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texture2D(shapeTexture, texturesCoords + onePixel * vec2( 1, 1)) * texture2D(psfTexture, vec2(i, j));
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*/
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renderTableColor = vec4(fullColor/40.0);
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}
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