void Fluid2DTextureApp::draw()
{
// clear out the window with black
gl::clear( Color( 0, 0, 0 ) );
gl::setMatricesWindow( getWindowWidth(), getWindowHeight() );
// Update the positions and tex coords
Rectf drawRect = getWindowBounds();
int limX = mFluid2D.resX() - 1;
int limY = mFluid2D.resY() - 1;
float dx = drawRect.getWidth()/(float)limX;
float dy = drawRect.getHeight()/(float)limY;
for( int j = 0; j < mFluid2D.resY(); ++j ) {
for( int i = 0; i < mFluid2D.resX(); ++i ) {
vec2 P = vec2( i*dx, j*dy );
vec2 uv = mFluid2D.texCoordAt( i, j );
int idx = j*mFluid2D.resX() + i;
mTriMesh->getPositions<2>()[idx] = P;
mTriMesh->getTexCoords0<2>()[idx] = uv;
}
}
mTex->bind();
gl::bindStockShader( gl::ShaderDef().color().texture() );
gl::draw( gl::VboMesh::create(*mTriMesh) );
mTex->unbind();
mParams.draw();
}
void srvlib::renderer::DrawTexture(ci::gl::Texture2dRef image, const glm::ivec2 &size){
ci::gl::disableDepthRead();
ci::gl::disableDepthWrite();
ci::gl::pushMatrices();
auto vp = ci::gl::getViewport();
ci::CameraOrtho o;
o.setOrtho(0.0f, (float)size[0], 0.0f, (float)size[1], (float)0, (float)1);
ci::gl::setProjectionMatrix(o.getProjectionMatrix());
ci::gl::setModelMatrix(glm::mat4());
ci::gl::setViewMatrix(glm::mat4());
ci::Rectf bounds(0, 0, size[0], size[1]);
ci::gl::viewport(size);
image->setTopDown();
ci::gl::draw(image);
ci::gl::viewport(vp);
ci::gl::popMatrices();
ci::gl::enableDepthRead();
ci::gl::enableDepthWrite();
}
//! initalizes the font texture
void Renderer::initFontTexture()
{
unsigned char* pixels;
int width, height;
ImGui::GetIO().Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
mFontTexture = gl::Texture::create( pixels, GL_RGBA, width, height, gl::Texture::Format().magFilter(GL_LINEAR).minFilter(GL_LINEAR) );
ImGui::GetIO().Fonts->ClearTexData();
ImGui::GetIO().Fonts->TexID = (void *)(intptr_t) mFontTexture->getId();
}
void Fluid2DParticlesApp::draw()
{
// clear out the window with black
gl::clear( Color( 0, 0, 0 ) );
gl::color( ColorAf( 1.0f, 1.0f, 1.0f, 0.999f ) );
float* data = const_cast<float*>( (float*)mFluid2D.rgb().data() );
Surface32f surf( data, mFluid2D.resX(), mFluid2D.resY(), mFluid2D.resX()*sizeof(Colorf), SurfaceChannelOrder::RGB );
if ( ! mTex ) {
mTex = gl::Texture::create( surf );
} else {
mTex->update( surf );
}
gl::draw( mTex, getWindowBounds() );
mTex->unbind();
mParticles.draw();
mParams.draw();
}
void srvlib::renderer::DrawTexture(ci::gl::Texture2dRef image, const glm::ivec2 &eye_size, const glm::ivec2 &draw_size, ci::gl::GlslProgRef shader){
ci::gl::disableDepthRead();
ci::gl::disableDepthWrite();
ci::gl::pushMatrices();
auto vp = ci::gl::getViewport();
ci::CameraOrtho o;
o.setOrtho(0.0f, (float)eye_size[0], 0.0f, (float)eye_size[1], (float)0, (float)1);
ci::gl::setProjectionMatrix(o.getProjectionMatrix());
ci::gl::setModelMatrix(glm::mat4());
ci::gl::setViewMatrix(glm::mat4());
image->bind();
if (shader){
shader->bind();
shader->uniform("tex0", 0);
}
else{
auto default_shader = ci::gl::getStockShader(ci::gl::ShaderDef().color().lambert());
default_shader->bind();
}
ci::Rectf bounds(0, 0, draw_size[0], draw_size[1]);
ci::gl::viewport(draw_size);
ci::gl::drawSolidRect(bounds);// , glm::vec2(0, 0), glm::vec2(1, 1));
ci::gl::viewport(vp);
image->unbind();
ci::gl::popMatrices();
ci::gl::enableDepthRead();
ci::gl::enableDepthWrite();
}
bool ImageButton( const ci::gl::Texture2dRef &texture, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, int frame_padding, const ImVec4& bg_col, const ImVec4& tint_col)
{
return ImageButton( (void*)(intptr_t) texture->getId(), size, uv0, uv1, frame_padding, bg_col, tint_col );
}
// Cinder Helpers
void Image( const ci::gl::Texture2dRef &texture, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& tint_col, const ImVec4& border_col )
{
Image( (void*)(intptr_t) texture->getId(), size, uv0, uv1, tint_col, border_col );
}