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Another try to run on Mac: added glDrawBuffer call before drawing to result texture.

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This commit is contained in:
Andrea Baldacci baldacci 2011-05-24 09:23:31 +00:00
parent 9e7f8168b3
commit cf4e2ea7ec
1 changed files with 9 additions and 4 deletions
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13
src/fgt/filter_sdfgpu/filter_sdfgpu.cpp
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@ -286,10 +286,7 @@ bool SdfGpuPlugin::initGL(MeshModel& mm)
mFboResult->attachTexture( mResultTexture->format().target(), mResultTexture->id(), GL_COLOR_ATTACHMENT0_EXT );
assert(mFboResult->isValid());
checkGLError::qDebug("Error during mFboResult ");
//clear first time
mFboResult->bind();
glClear(GL_COLOR_BUFFER_BIT);
mFboResult->unbind();
//We use 3 FBOs to avoid z-fighting in sdf and obscurance calculation, see TraceRays function for details
for(int i = 0; i < 3; i++)
@ -545,6 +542,8 @@ void SdfGpuPlugin::calculateSdfHW(FramebufferObject* fboFront, FramebufferObject
{
mFboResult->bind();
glViewport(0, 0, mResTextureDim, mResTextureDim);
glDrawBuffer(GL_COLOR_ATTACHMENT0);
GLfloat mv_pr_Matrix_f[16]; // modelview-projection matrix
glGetFloatv(GL_MODELVIEW_MATRIX, mv_pr_Matrix_f);
@ -639,6 +638,9 @@ void SdfGpuPlugin::calculateSdfHW(FramebufferObject* fboFront, FramebufferObject
glVertex3f(-1.0f, 1.0f, 0.0f); //U-L
glEnd();
assert(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) == GL_FRAMEBUFFER_COMPLETE_EXT && "mFboResult error while drawing");
mFboResult->unbind();
glDepthMask(GL_TRUE);
glEnable(GL_DEPTH_TEST);
@ -672,6 +674,7 @@ void SdfGpuPlugin::calculateObscurance(FramebufferObject* fboFront, FramebufferO
{
mFboResult->bind();
glViewport(0, 0, mResTextureDim, mResTextureDim);
glDrawBuffer(GL_COLOR_ATTACHMENT0);
GLfloat mv_pr_Matrix_f[16]; // modelview-projection matrix
glGetFloatv(GL_MODELVIEW_MATRIX, mv_pr_Matrix_f);
@ -749,6 +752,8 @@ void SdfGpuPlugin::calculateObscurance(FramebufferObject* fboFront, FramebufferO
glVertex3f(-1.0f, 1.0f, 0.0f); //U-L
glEnd();
assert(glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) == GL_FRAMEBUFFER_COMPLETE_EXT && "mFboResult error while drawing");
mFboResult->unbind();
glDepthMask(GL_TRUE);
glEnable(GL_DEPTH_TEST);