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This should fix the erroneous persistence on startup.

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This commit is contained in:
Andrzej Kapolka 2013-12-09 11:21:32 -08:00
parent 85f7995700
commit c36e04c435
2 changed files with 8 additions and 3 deletions
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10
interface/src/renderer/GlowEffect.cpp
View file

@ -19,6 +19,7 @@ GlowEffect::GlowEffect()
: _initialized(false),
_renderMode(DIFFUSE_ADD_MODE),
_isOddFrame(false),
_isFirstFrame(true),
_intensity(0.0f) {
}
@ -167,7 +168,7 @@ QOpenGLFramebufferObject* GlowEffect::render(bool toTexture) {
newDiffusedFBO->bind();
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, oldDiffusedFBO->texture());
glBindTexture(GL_TEXTURE_2D, _isFirstFrame ? 0 : oldDiffusedFBO->texture());
_diffuseProgram->bind();
QSize size = Application::getInstance()->getGLWidget()->size();
@ -221,7 +222,7 @@ QOpenGLFramebufferObject* GlowEffect::render(bool toTexture) {
maybeRelease(destFBO);
} else { // _renderMode == BLUR_PERSIST_ADD_MODE
// render the secondary to the tertiary with horizontal blur and persistence
// render the secondary to the tertiary with vertical blur and persistence
QOpenGLFramebufferObject* tertiaryFBO =
Application::getInstance()->getTextureCache()->getTertiaryFramebufferObject();
tertiaryFBO->bind();
@ -229,7 +230,7 @@ QOpenGLFramebufferObject* GlowEffect::render(bool toTexture) {
glEnable(GL_BLEND);
glBlendFunc(GL_ONE_MINUS_CONSTANT_ALPHA, GL_CONSTANT_ALPHA);
const float PERSISTENCE_SMOOTHING = 0.9f;
glBlendColor(0.0f, 0.0f, 0.0f, PERSISTENCE_SMOOTHING);
glBlendColor(0.0f, 0.0f, 0.0f, _isFirstFrame ? 0.0f : PERSISTENCE_SMOOTHING);
glBindTexture(GL_TEXTURE_2D, secondaryFBO->texture());
@ -270,6 +271,8 @@ QOpenGLFramebufferObject* GlowEffect::render(bool toTexture) {
glDepthMask(GL_TRUE);
glBindTexture(GL_TEXTURE_2D, 0);
_isFirstFrame = false;
return destFBO;
}
@ -292,6 +295,7 @@ void GlowEffect::cycleRenderMode() {
qDebug() << "Glow mode: Diffuse/add\n";
break;
}
_isFirstFrame = true;
}
Glower::Glower(float amount) {

1
interface/src/renderer/GlowEffect.h
View file

@ -66,6 +66,7 @@ private:
bool _isEmpty; ///< set when nothing in the scene is currently glowing
bool _isOddFrame; ///< controls the alternation between texture targets in diffuse add mode
bool _isFirstFrame; ///< for persistent modes, notes whether this is the first frame rendered
float _intensity;
QStack<float> _intensityStack;