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implemented demonstrative dip to black transition

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This commit is contained in:
itsmattkc
2019-12-12 19:00:49 +11:00
parent e1f4821b5a
commit 526f07ba08
9 changed files with 126 additions and 41 deletions
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app/render/backend/opengl/openglworker.cpp
+16 -7
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@@ -275,19 +275,28 @@ void OpenGLWorker::RunNodeAccelerated(const Node *node, const TimeRange &range,
const TransitionBlock* transition_node = static_cast<const TransitionBlock*>(node);
// Provide transition information
rational internal_time = range.in() - block_node->in();
double internal_time = (range.in() - block_node->in()).toDouble();
GLfloat all_prog = static_cast<GLfloat>(internal_time / block_node->length().toDouble());
GLfloat out_prog = 0;
GLfloat in_prog = 0;
if (transition_node->out_offset() != 0) {
out_prog = static_cast<GLfloat>(clamp(1.0 - (internal_time / transition_node->out_offset().toDouble()), 0.0, 1.0));
}
if (transition_node->in_offset() != 0) {
in_prog = static_cast<GLfloat>(clamp((internal_time - transition_node->out_offset().toDouble()) / transition_node->in_offset().toDouble(), 0.0, 1.0));
}
// Provides total transition progress from 0.0 (start) - 1.0 (end)
shader->setUniformValue("ove_tprog_all",
static_cast<GLfloat>(internal_time.toDouble() / block_node->length().toDouble()));
shader->setUniformValue("ove_tprog_all", all_prog);
// Provides progress of out section from 1.0 (start) - 0.0 (end)
shader->setUniformValue("ove_tprog_out",
static_cast<GLfloat>(clamp(internal_time.toDouble() / transition_node->out_offset().toDouble(), 0.0, 1.0)));
shader->setUniformValue("ove_tprog_out", out_prog);
// Provides progress of in section from 0.0 (start) - 1.0 (end)
shader->setUniformValue("ove_tprog_in",
static_cast<GLfloat>(clamp((internal_time - transition_node->out_offset()).toDouble() / transition_node->in_offset().toDouble(), 0.0, 1.0)));
shader->setUniformValue("ove_tprog_in", in_prog);
}
}