itsmattkc
bc0f01d9a3
Since the nodes won't be holding any rendering data themselves in this system, we may as well enforce some level of non-write access by setting all the functions to const. They were already const-friendly, they just weren't labelled as such.
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "alphaover.h"
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AlphaOverBlend::AlphaOverBlend()
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{
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}
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Node *AlphaOverBlend::copy() const
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{
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return new AlphaOverBlend();
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}
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QString AlphaOverBlend::Name() const
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{
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return tr("Alpha Over");
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}
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QString AlphaOverBlend::id() const
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{
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return "org.olivevideoeditor.Olive.alphaoverblend";
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}
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QString AlphaOverBlend::Description() const
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{
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return tr("A blending node that composites one texture over another using its alpha channel.");
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}
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QString AlphaOverBlend::Code(NodeOutput *output) const
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{
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if (output == texture_output()) {
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return "#version 110"
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"\n"
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"varying vec2 v_texcoord;\n"
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"\n"
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"uniform sampler2D base_in;\n"
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"uniform sampler2D blend_in;\n"
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"\n"
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"void main(void) {\n"
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" vec4 base_col = texture2D(base_in, v_texcoord);\n"
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" vec4 blend_col = texture2D(blend_in, v_texcoord);\n"
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" \n"
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" gl_FragColor = base_col - blend_col.a + blend_col;\n"
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"}\n";
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}
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return Node::Code(output);
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}
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