malustewart

ImGui consultas 2020 1C

> ¿Cómo cambio el tamaño de las fonts?

En DemoWindow > Configuration > Fonts :

• Para cambiar el tamaño de la font de una sola ventana, existe ImGui::SetWindowFontScale(window_scale), donde window_scale es un float que va desde 0.0 (tamaño casi invisible) a 2.0 (tamaño doble que el normal).
• Para cambiar el tamaño de una font en todas las ventanas, alcanza con modificar io.FontGlobalScale. io es el contexto de ImGui que se obtiene en la inicialización. FontGlobalScale es un float que va desde 0.0 (tamaño casi invisible) a 2.0 (tamaño doble que el normal).

Ver líneas 3324 a 3327 de imgui_demo.cpp

> ¿Cómo fijo la posición de las ventanas?

mhalber

This note simply gathers some info and thoughts on building Node Editor, especially in an
immediate mode setting.

Q: How does imgui render rounded rects?
Check imgui AddRectFilled
Imgui drawing api is closer to nanoVG
 - Path is kept
 - Contents are modified based on path
 

vurtun

alaingalvan

void printOpenGLDebugInfo()
{
    int majorVersion, minorVersion;
    glGetIntegerv(GL_MAJOR_VERSION, &majorVersion);
    glGetIntegerv(GL_MINOR_VERSION, &minorVersion);
    std::cout << "OpenGL Version: " << majorVersion << "." << minorVersion
              << std::endl;

    int work_grp_cnt[3];

alaingalvan

void main()
{
  vec3 positionX = backproject(depthTexture(pixelCoordinateI), inverseViewProjectionMatrix);
  vec3 normalX = normalTexture(pixelCoordinateI);
  // get ONB to transform samples
  mat3 orthoNormalBasis = computeONB(normalX);
  // select samples for pixel out of pattern
  int patternOffset = getPatternOffset(pixelCoordinateI);

  float ao = 0.0;

alaingalvan

void rng_seed(output int rng, int seed)
{
  int chash = seed;
  if (chash == 0) chash = 1;
  rng = chash * 30391861;
}

float rng_uniform(output int rng)
{
  float res = rng / float(2137483647) * 0.5 + 0.5;

mmozeiko

// example how to set up WebGPU rendering on Windows in C
// uses Dawn implementation of WebGPU: https://dawn.googlesource.com/dawn/
// download pre-built Dawn webgpu.h/dll/lib files from https://github.com/mmozeiko/build-dawn/releases/latest

#include "webgpu.h"

#define WIN32_LEAN_AND_MEAN
#include <windows.h>

#define _USE_MATH_DEFINES

mmozeiko

#pragma once

// uncompressed png writer & reader
// supports only 8-bit and 16-bit formats

// Performance comparison for 8192x8192 BGRA8 image (256MB)
// Compiled with "clang -O2", AVX2 requires extra "-mavx2" or "/arch:AVX2" argument
//
// For libpng (compressed) uses default libpng/zlib compression settings
// For libpng (uncompressed) case following two functions are used:

rmitton

// How to do a toolbar in Dear ImGui.

const float toolbarSize = 50;

void DockSpaceUI()
{
	ImGuiViewport* viewport = ImGui::GetMainViewport();
	ImGui::SetNextWindowPos(viewport->Pos + ImVec2(0, toolbarSize));
	ImGui::SetNextWindowSize(viewport->Size - ImVec2(0, toolbarSize));
	ImGui::SetNextWindowViewport(viewport->ID);

Wumpf

Computational Fluid Dynamics (in graphics mostly)

Disclaimer: I have no professional education in Compulational Fluid Dynamics, these are various notes on what I found/learned when trying to learn a bit on the topic. Some of the notes lack sources as I wrote them up later often just remembering some StackExchange answer. Some things I might have misinterpreted.

• Computational Fluid Dynamics (in graphics mostly)
• General / Overview
  • Overarching resources
• General Concepts & Keywords