void FBO::texture3D(const unsigned int attachment, const unsigned int textureID, const int level, const int layer){
attachments.push_back(attachment);
glFramebufferTexture3D(target,
attachment,
GL_TEXTURE_3D,
textureID,
level,
layer);
loaded = true;
}
/*
=================
R_AttachFBOTexture3D
=================
*/
void R_AttachFBOTexture3D(int texId, int index, int zOffset)
{
#if defined(USE_D3D10)
// TODO
#else
if(index < 0 || index >= glConfig2.maxColorAttachments)
{
ri.Printf(PRINT_WARNING, "R_AttachFBOTexture3D: invalid attachment index %i\n", index);
return;
}
glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + index, GL_TEXTURE_3D, texId, 0, zOffset);
#endif
}
void GLTextureBuffer::bindToFramebuffer(GLenum attachment, UINT32 zoffset, bool allLayers)
{
if(mTarget == GL_TEXTURE_1D || mTarget == GL_TEXTURE_2D)
allLayers = true;
if(allLayers)
{
switch (mTarget)
{
case GL_TEXTURE_1D:
glFramebufferTexture1D(GL_FRAMEBUFFER, attachment, mFaceTarget, mTextureID, mLevel);
BS_CHECK_GL_ERROR();
break;
case GL_TEXTURE_2D:
glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, mFaceTarget, mTextureID, mLevel);
BS_CHECK_GL_ERROR();
break;
case GL_TEXTURE_2D_MULTISAMPLE:
glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, mFaceTarget, mTextureID, 0);
BS_CHECK_GL_ERROR();
break;
case GL_TEXTURE_CUBE_MAP:
case GL_TEXTURE_3D:
default: // Texture arrays (binding all layers)
glFramebufferTexture(GL_FRAMEBUFFER, attachment, mTextureID, mLevel);
BS_CHECK_GL_ERROR();
break;
}
}
else
{
switch (mTarget)
{
case GL_TEXTURE_3D:
glFramebufferTexture3D(GL_FRAMEBUFFER, attachment, mFaceTarget, mTextureID, mLevel, zoffset);
BS_CHECK_GL_ERROR();
break;
case GL_TEXTURE_CUBE_MAP:
glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, mFaceTarget, mTextureID, mLevel);
BS_CHECK_GL_ERROR();
break;
default: // Texture arrays
glFramebufferTextureLayer(GL_FRAMEBUFFER, attachment, mTextureID, mLevel, mFace);
BS_CHECK_GL_ERROR();
break;
}
}
}
/// Bind a texture to the "attachment" point of this FBO (GL_COLOR_ATTACHMENT0_EXT, textarget, texID)
void FrameBufferObject::attachTexture( GLenum attachment, GLenum texType, GLuint texId,int mipLevel, int zSlice)
{
if (texType == GL_TEXTURE_1D) {
glFramebufferTexture1D( GL_FRAMEBUFFER, attachment,
GL_TEXTURE_1D, texId, mipLevel );
}
else if (texType == GL_TEXTURE_3D) {
glFramebufferTexture3D( GL_FRAMEBUFFER, attachment,
GL_TEXTURE_3D, texId, mipLevel, zSlice );
}
else {
// Default is GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE, or cube faces
glFramebufferTexture2D( GL_FRAMEBUFFER, attachment,
texType, texId, mipLevel );
}
}
Fbo::Fbo(int width, int height, int int_method): width(width), height(height)
{
glGenFramebuffers(1, &fb);
glGenRenderbuffers(1, &rb);
glBindFramebuffer(GL_FRAMEBUFFER, fb);
if(int_method == 3) {
glEnable(GL_TEXTURE_3D);
glGenTextures(1, &texid);
glBindTexture(GL_TEXTURE_3D, texid);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D, texid, 0, 0);
}
else {
glGenTextures(1, &texid);
glBindTexture(GL_TEXTURE_2D, texid);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
if(false)//int_method == 0)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texid, 0);
}
// Renderbuffer
// initialize depth renderbuffer
glBindRenderbuffer(GL_RENDERBUFFER, rb);
//util::CHECK_FRAMEBUFFER_STATUS();
//printf("Framebuffer object %d\n", fb);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
void FramebufferObject::attachTexture(Texture* texture, GLenum attachment, int mipLevel, int zSlice) {
switch(texture->type()) {
case GL_TEXTURE_1D:
glFramebufferTexture1D( GL_FRAMEBUFFER, attachment, GL_TEXTURE_1D, *texture, mipLevel );
break;
case GL_TEXTURE_3D:
glFramebufferTexture3D( GL_FRAMEBUFFER, attachment, GL_TEXTURE_3D, *texture, mipLevel, zSlice );
break;
case GL_TEXTURE_2D_ARRAY:
glFramebufferTextureLayer( GL_FRAMEBUFFER, attachment, *texture, mipLevel, zSlice );
break;
default: //GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE
glFramebufferTexture2D( GL_FRAMEBUFFER, attachment, texture->type(), GLuint(*texture), mipLevel );
break;
}
_attachedTextures[attachment] = texture;
}
bool FrameBuffer :: attach3DTextureSlice ( Texture * tex, int zOffs, int no )
{
if ( frameBuffer == 0 )
return false;
if ( tex -> getTarget () != GL_TEXTURE_3D )
return false;
if ( tex -> getDepth () >= zOffs )
return false;
colorBuffer [no] = tex;
glBindTexture ( GL_TEXTURE_3D, tex -> getId () );
glFramebufferTexture3D ( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + no, GL_TEXTURE_3D, tex -> getId (), 0, zOffs );
return true;
}
void
piglit_init(int argc, char **argv)
{
int i, j;
bool pass = true;
GLuint fbo, texture;
float colorData[2][10*10*3];
/* fill in colorData */
for(j = 0; j < 2; j++)
for(i = 0; i < 10*10; i++) {
colorData[j][i*3+0] = color[j][0];
colorData[j][i*3+1] = color[j][1];
colorData[j][i*3+2] = color[j][2];
}
/* Create the Source framebuffer object */
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_3D, texture);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_REPEAT);
glTexImage3D(GL_TEXTURE_3D, 0, GL_RGB, 10, 10, 2, 0, GL_RGB,
GL_FLOAT, colorData);
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_3D, texture, 0, 0);
if(!piglit_check_gl_error(GL_NO_ERROR)) {
piglit_report_result(PIGLIT_FAIL);
}
/* piglit_probe_rect_rgb internally calls ReadPixel(). Check that
* the color probed is the same as the Zero layer of the texture.
*/
pass = piglit_probe_rect_rgb(0, 0, 10, 10, color[0]) && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
void GL3FrameBufferProvider::detach_object(GLenum opengl_attachment)
{
int internal_attachment_offset = decode_internal_attachment_offset(opengl_attachment);
GLenum target = GL_DRAW_FRAMEBUFFER;
if (bind_target == framebuffer_read)
target = GL_READ_FRAMEBUFFER;
if (!attached_renderbuffers[internal_attachment_offset].is_null())
{
glFramebufferRenderbuffer(target, opengl_attachment, GL_RENDERBUFFER, 0);
attached_renderbuffers[internal_attachment_offset] = RenderBuffer();
}
if (!attached_textures[internal_attachment_offset].is_null())
{
GL3TextureProvider *gl_texture_provider = dynamic_cast<GL3TextureProvider*>(attached_textures[internal_attachment_offset].get_provider());
GLuint texture_type = gl_texture_provider->get_texture_type();
if (texture_type == GL_TEXTURE_1D)
{
glFramebufferTexture1D(target, opengl_attachment, texture_type, 0, 0);
}
else if (texture_type == GL_TEXTURE_2D)
{
glFramebufferTexture2D(target, opengl_attachment, texture_type, 0, 0);
}
else if (texture_type == GL_TEXTURE_3D)
{
glFramebufferTexture3D(target, opengl_attachment, texture_type, 0, 0, 0);
}
else if (texture_type == GL_TEXTURE_2D_ARRAY || texture_type == GL_TEXTURE_1D_ARRAY)
{
glFramebufferTextureLayer(target, opengl_attachment, 0, 0, 0);
}
attached_textures[internal_attachment_offset] = Texture();
}
}
void RenderTargetFBO::AttachmentTexture::bind3D( AttachmentTarget attachment, GLuint textureId )
{
// INFO this could use bindLayer too, but will fail if the GL_EXT_texture_array extension is not available.
glFramebufferTexture3D( GL_FRAMEBUFFER_EXT, static_cast<GLenum>(attachment), m_textureTarget, textureId, m_level, m_zoffset );
}
bool NzRenderTexture::AttachTexture(nzAttachmentPoint attachmentPoint, nzUInt8 index, NzTexture* texture, unsigned int z)
{
#if NAZARA_RENDERER_SAFE
if (!m_impl)
{
NazaraError("Render texture not created");
return false;
}
if (attachmentPoint != nzAttachmentPoint_Color && index > 0)
{
NazaraError("Index must be 0 for non-color attachments");
return false;
}
if (attachmentPoint == nzAttachmentPoint_Stencil)
{
NazaraError("Targeting stencil-only textures is not supported");
return false;
}
unsigned int depthStencilIndex = attachmentIndex[nzAttachmentPoint_DepthStencil];
if (attachmentPoint == nzAttachmentPoint_Stencil && m_impl->attachements.size() > depthStencilIndex &&
m_impl->attachements[depthStencilIndex].isUsed)
{
NazaraError("Stencil target already attached by DepthStencil attachment");
return false;
}
if (!texture || !texture->IsValid())
{
NazaraError("Invalid texture");
return false;
}
if (texture->GetWidth() < m_impl->width || texture->GetHeight() < m_impl->height)
{
NazaraError("Texture cannot be smaller than render texture");
return false;
}
unsigned int depth = (texture->GetType() == nzImageType_Cubemap) ? 6 : texture->GetDepth();
if (z >= depth)
{
NazaraError("Z value exceeds depth (" + NzString::Number(z) + " >= (" + NzString::Number(depth) + ')');
return false;
}
if (texture->GetRenderTexture() != nullptr)
{
NazaraError("Texture already used by another render texture");
return false;
}
if (formatTypeToAttachment[NzPixelFormat::GetType(texture->GetFormat())] != attachmentPoint)
{
NazaraError("Pixel format type does not match attachment point type");
return false;
}
#endif
if (!Lock())
{
NazaraError("Failed to lock render texture");
return false;
}
// Détachement de l'attache précédente (Si il y a)
Detach(attachmentPoint, index);
switch (texture->GetType())
{
case nzImageType_1D:
glFramebufferTexture1D(GL_DRAW_FRAMEBUFFER, NzOpenGL::Attachment[attachmentPoint]+index, GL_TEXTURE_1D, texture->GetOpenGLID(), 0);
break;
case nzImageType_1D_Array:
case nzImageType_2D_Array:
glFramebufferTextureLayer(GL_DRAW_FRAMEBUFFER, NzOpenGL::Attachment[attachmentPoint]+index, texture->GetOpenGLID(), 0, z);
break;
case nzImageType_2D:
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, NzOpenGL::Attachment[attachmentPoint]+index, NzOpenGL::TextureTarget[texture->GetType()], texture->GetOpenGLID(), 0);
break;
case nzImageType_3D:
glFramebufferTexture3D(GL_DRAW_FRAMEBUFFER, NzOpenGL::Attachment[attachmentPoint]+index, GL_TEXTURE_3D, texture->GetOpenGLID(), 0, z);
break;
case nzImageType_Cubemap:
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, NzOpenGL::Attachment[attachmentPoint]+index, NzOpenGL::CubemapFace[z], texture->GetOpenGLID(), 0);
break;
}
Unlock();
unsigned int minSize = attachmentIndex[attachmentPoint]+index+1;
if (m_impl->attachements.size() < minSize)
m_impl->attachements.resize(minSize);
Attachment& attachment = m_impl->attachements[minSize-1];
attachment.isBuffer = false;
attachment.isUsed = true;
attachment.texture = texture;
texture->AddResourceListener(this);
texture->SetRenderTexture(this);
m_impl->checked = false;
m_impl->drawBuffersUpdated = false;
return true;
}
void GLfbo::Texture3D(u32 attachment, u32 texture, int zoffset, int level)
{
glFramebufferTexture3D(m_type, attachment, GL_TEXTURE_3D, texture, level, zoffset);
}
void attach3d(GLenum attachment, GLenum texture_target, GLuint texture_id, GLint level, GLint layer) { scoped_bind<framebuffer> bound(*this); glFramebufferTexture3D(target, attachment, texture_target, texture_id, level, layer); throw_on_texture_opengl_error(); }
void ShaderNode::bindOutputBuffers( QVector<GLenum> &Buffers, QList< QSharedPointer<InterfacePin> > &OutPinLst, int &W, int &H, int &D )
{
for( QList< QSharedPointer<InterfacePin> >::iterator it = OutPinLst.begin() ; it != OutPinLst.end() ; it++ )
{
QSharedPointer<InterfacePin> OutPin = *it;
if( !OutPin->isConnected() )
{
continue;
}
QSharedPointer<InterfacePin> DstPin = OutPin->connectedPin();
if( DstPin == 0 )
{
continue;
}
QSharedPointer<InterfacePinControl> DstControl = DstPin->control();
if( DstControl == 0 )
{
continue;
}
InterfaceTexture *DstTexture = qobject_cast<InterfaceTexture *>( DstControl->object() );
if( DstTexture == 0 )
{
continue;
}
if( DstTexture->textureId() == 0 )
{
DstTexture->update( 0, 0 );
if( DstTexture->textureId() == 0 )
{
continue;
}
}
if( Buffers.empty() )
{
W = DstTexture->size().at( 0 );
H = DstTexture->size().at( 1 );
D = DstTexture->size().at( 2 );
}
//glBindTexture( DstTexture->target(), 0 );
if( mFrameBufferId == 0 )
{
glGenFramebuffers( 1, &mFrameBufferId );
if( mFrameBufferId == 0 )
{
continue;
}
}
glBindFramebuffer( GL_FRAMEBUFFER, mFrameBufferId );
switch( DstTexture->target() )
{
case GL_TEXTURE_1D:
glFramebufferTexture1D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + Buffers.size(), DstTexture->target(), DstTexture->textureId(), 0 );
break;
case GL_TEXTURE_2D:
case GL_TEXTURE_RECTANGLE:
glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + Buffers.size(), DstTexture->target(), DstTexture->textureId(), 0 );
break;
case GL_TEXTURE_3D:
glFramebufferTexture3D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + Buffers.size(), DstTexture->target(), DstTexture->textureId(), 0, 0 );
break;
}
OPENGL_PLUGIN_DEBUG;
Buffers.append( GL_COLOR_ATTACHMENT0 + Buffers.size() );
}
}
/**
* OpenGL ES does not support glGetTexImage. Obtain the pixels by attaching the
* texture to a framebuffer.
*/
static inline void
getTexImageOES(GLenum target, GLint level, ImageDesc &desc, GLubyte *pixels)
{
memset(pixels, 0x80, desc.height * desc.width * 4);
GLenum texture_binding = GL_NONE;
switch (target) {
case GL_TEXTURE_2D:
texture_binding = GL_TEXTURE_BINDING_2D;
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
texture_binding = GL_TEXTURE_BINDING_CUBE_MAP;
break;
case GL_TEXTURE_3D_OES:
texture_binding = GL_TEXTURE_BINDING_3D_OES;
default:
return;
}
GLint texture = 0;
glGetIntegerv(texture_binding, &texture);
if (!texture) {
return;
}
GLint prev_fbo = 0;
GLuint fbo = 0;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prev_fbo);
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
GLenum status;
switch (target) {
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, level);
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE) {
std::cerr << __FUNCTION__ << ": " << enumToString(status) << "\n";
}
glReadPixels(0, 0, desc.width, desc.height, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
break;
case GL_TEXTURE_3D_OES:
for (int i = 0; i < desc.depth; i++) {
glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D, texture, level, i);
glReadPixels(0, 0, desc.width, desc.height, GL_RGBA, GL_UNSIGNED_BYTE, pixels + 4 * i * desc.width * desc.height);
}
break;
}
glBindFramebuffer(GL_FRAMEBUFFER, prev_fbo);
glDeleteFramebuffers(1, &fbo);
}
//-----------------------------------------------------------------------------
void GLES2TextureBuffer::download(const PixelBox &data)
{
if(data.getWidth() != getWidth() ||
data.getHeight() != getHeight() ||
data.getDepth() != getDepth())
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "only download of entire buffer is supported by GL ES",
"GLES2TextureBuffer::download");
if(PixelUtil::isCompressed(data.format))
{
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
"Compressed images cannot be downloaded by GL ES",
"GLES2TextureBuffer::download");
}
GLenum texBinding = GL_NONE;
switch (mTarget)
{
case GL_TEXTURE_2D:
texBinding = GL_TEXTURE_BINDING_2D;
break;
case GL_TEXTURE_CUBE_MAP:
texBinding = GL_TEXTURE_BINDING_CUBE_MAP;
break;
#if OGRE_NO_GLES3_SUPPORT == 0
case GL_TEXTURE_3D:
texBinding = GL_TEXTURE_BINDING_3D;
break;
#endif
default:
return;
}
#if OGRE_NO_GLES3_SUPPORT == 0
if(data.getWidth() != data.rowPitch)
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_PACK_ROW_LENGTH, data.rowPitch));
if(data.getHeight()*data.getWidth() != data.slicePitch)
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_PACK_IMAGE_HEIGHT, (data.slicePitch/data.getWidth())));
if(data.left > 0 || data.top > 0 || data.front > 0)
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_PACK_SKIP_PIXELS, data.left + data.rowPitch * data.top + data.slicePitch * data.front));
#endif
if((data.getWidth()*PixelUtil::getNumElemBytes(data.format)) & 3) {
// Standard alignment of 4 is not right
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_PACK_ALIGNMENT, 1));
}
GLint currentFBO = 0;
GLuint tempFBO = 0;
OGRE_CHECK_GL_ERROR(glGetIntegerv(GL_FRAMEBUFFER_BINDING, ¤tFBO));
OGRE_CHECK_GL_ERROR(glGenFramebuffers(1, &tempFBO));
OGRE_CHECK_GL_ERROR(glBindFramebuffer(GL_FRAMEBUFFER, tempFBO));
switch (mTarget)
{
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP:
OGRE_CHECK_GL_ERROR(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextureID, 0));
OGRE_CHECK_GL_ERROR(glCheckFramebufferStatus(GL_FRAMEBUFFER));
OGRE_CHECK_GL_ERROR(glReadPixels(0, 0, data.getWidth(), data.getHeight(),
GLES2PixelUtil::getGLOriginFormat(data.format),
GLES2PixelUtil::getGLOriginDataType(data.format), data.data));
break;
#if OGRE_NO_GLES3_SUPPORT == 0
case GL_TEXTURE_3D:
for (int i = 0; i < desc.depth; i++) {
OGRE_CHECK_GL_ERROR(glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D, mTextureID, mLevel, i));
OGRE_CHECK_GL_ERROR(glReadPixels(0, 0, data.getWidth(), data.getHeight(), GL_RGBA, GL_UNSIGNED_BYTE, pixels + 4 * i * data.getWidth() * data.getHeight()));
}
break;
#endif
}
// Restore defaults
#if OGRE_NO_GLES3_SUPPORT == 0
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_PACK_ROW_LENGTH, 0));
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_PACK_IMAGE_HEIGHT, 0));
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_PACK_SKIP_PIXELS, 0));
#endif
OGRE_CHECK_GL_ERROR(glPixelStorei(GL_PACK_ALIGNMENT, 4));
OGRE_CHECK_GL_ERROR(glBindFramebuffer(GL_FRAMEBUFFER, currentFBO));
OGRE_CHECK_GL_ERROR(glDeleteFramebuffers(1, &tempFBO));
}
MyEngine::MyEngine() : SimpleGraphicsEngine()
{
// Shaders
ShaderManager::instance()->loadShader(
"SHADER_PHONG",
"../shaders/phong.vert",
nullptr,
nullptr,
nullptr,
"../shaders/phong.frag");
ShaderManager::instance()->loadShader(
"SHADER_PLAINTEXTURE",
"../shaders/plaintextureshader.vert",
nullptr,
nullptr,
nullptr,
"../shaders/plaintextureshader.frag");
ShaderManager::instance()->loadShader(
"SHADER_SIMPLEVOLUME",
"../shaders/simplevolumerenderer.vert",
nullptr,
nullptr,
nullptr,
"../shaders/simplevolumerenderer.frag");
ShaderManager::instance()->loadShader(
"SHADER_WORLDPOSITIONOUTPUT",
"../shaders/worldpositionoutputshader.vert",
nullptr,
nullptr,
nullptr,
"../shaders/worldpositionoutputshader.frag");
ShaderManager::instance()->loadShader(
"SHADER_GLOBALRENDERER",
"../shaders/globalrenderer.vert",
nullptr,
nullptr,
nullptr,
"../shaders/globalrenderer.frag");
shader_phong_ = ShaderManager::instance()->getShader("SHADER_PHONG");
shader_plaintexture_ = ShaderManager::instance()->getShader("SHADER_PLAINTEXTURE");
shader_simplevolume_ = ShaderManager::instance()->getShader("SHADER_SIMPLEVOLUME");
shader_worldpositionoutput_ = ShaderManager::instance()->getShader("SHADER_WORLDPOSITIONOUTPUT");
shader_global_ = ShaderManager::instance()->getShader("SHADER_GLOBALRENDERER");
yaw_goal = pitch_goal = roll_goal = 0;
yaw = pitch = roll = 0;
// FBO
fbo3D_ = new FBO3D(64);
fbo1_ = new FBO(640, 480, 0);
fbo2_ = new FBO(640, 480, 0);
// Cameras
camera_ = new Object3D();
basic_cam_ = new PerspectiveCamera(window_);
slicer_camera_ = new OrthoCamera();
camera_->addChild(basic_cam_);
// Materials
material1_.color_diffuse = glm::vec3(0,1,1);
material1_.color_specular = glm::vec3(1,1,1);
material1_.reflectance = 1;
material1_.specular_reflectance = 0;
material1_.specular_polish = 0.5;
material2_.color_diffuse = glm::vec3(1,1,1);
material2_.color_specular = glm::vec3(1,1,1);
material2_.reflectance = 1;
material2_.specular_reflectance = 0.0;
material2_.specular_polish = 0.5;
// Objects
//planet_ = new Planet();
quad_ = new Quad();
cube_ = new TriangleMesh("../data/meshes/cube.obj");
floor_mesh_ = new TriangleMesh("../data/meshes/floor.obj");
bunny_mesh_ = new TriangleMesh("../data/meshes/bunny.obj");
floor_ = new MyObject3D(material1_);
bunny_ = new MyObject3D(material2_);
floor_->addChild(floor_mesh_);
floor_->transform_matrix_ = glm::rotate(70.0f, glm::vec3(1.0f,0.0f,0.0f));
floor_->transform_matrix_ = glm::translate(glm::vec3(0.0f,-0.5f,-0.5f)) * floor_->transform_matrix_;
bunny_->addChild(bunny_mesh_);
bunny_->transform_matrix_ = glm::scale(glm::mat4(), glm::vec3(0.3,0.3,0.3));
scene_->addChild(bunny_);
scene_->addChild(floor_);
// Set callback functions
glfwSetScrollCallback(window_, mouseScrollCallback);
glfwSetKeyCallback(window_, keyCallback);
glfwSetInputMode(window_, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
// Voxelize the mesh
glBindFramebuffer(GL_FRAMEBUFFER, fbo3D_->fb_);
glViewport(0, 0, fbo3D_->size_, fbo3D_->size_);
glClearColor(0.0, 0.0, 0.0, 0.0);
//glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glDisable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
for (int i = 0; i < fbo3D_->size_; ++i)
{
glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D, fbo3D_->texid_, 0, i);
float scene_scale = 1;
slicer_camera_->render(
glm::mat4(),
shader_phong_,
-scene_scale, // left
scene_scale, // right
-scene_scale, // bottom
scene_scale, // top
scene_scale - (float)i / fbo3D_->size_ * scene_scale * 2, // near
scene_scale - (float)(i + 1) / fbo3D_->size_ * scene_scale * 2); // far
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
scene_->render(glm::mat4(), shader_phong_);
}
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_3D, fbo3D_->texid_);
glGenerateMipmap(GL_TEXTURE_3D);
}