vGizmo3D v4.0 WiP - new features: this is a 3.1 beta release, going t…

…oward v4.0 (to unify imguizmo_quat version)

easy_examples/commons/shadersAndModel.h

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+//------------------------------------------------------------------------------
+//  Copyright (c) 2018-2025 Michele Morrone
+//  All rights reserved.
+//
+//  https://michelemorrone.eu - https://brutpitt.com
+//
+//  X: https://x.com/BrutPitt - GitHub: https://github.com/BrutPitt
+//
+//  direct mail: brutpitt(at)gmail.com - me(at)michelemorrone.eu
+//
+//  This software is distributed under the terms of the BSD 2-Clause license
+//------------------------------------------------------------------------------
+#pragma once
+
+#define GLSL_VERSION "#version 450\n"
+const char* vertex_code = GLSL_VERSION R"(
+layout(std140) uniform;
+layout (location = 0) in vec4 pos;
+layout (location = 1) in vec4 inColor;
+
+layout (location = 2) uniform mat4 mvp;
+
+layout (location = 0) out vec4 outColor;
+
+out vec3 vsPos;
+
+
+void main()
+{
+    outColor = inColor;
+    gl_Position = mvp * pos;
+}
+)";
+const char* vertex_instanced = GLSL_VERSION R"(
+layout(std140) uniform;
+layout (location = 0) in vec4 pos;
+layout (location = 1) in vec4 inColor;
+
+layout (location = 2) uniform mat4 mvp;
+layout (location = 3) uniform mat4 light;
+
+layout (location = 0) out vec4 outColor;
+
+out vec3 vsPos;
+
+void main()
+{
+    if(gl_InstanceID==1) {
+        outColor = inColor;
+        gl_Position = mvp * pos;
+    }
+    else {
+        outColor = vec4(1.0, 1.0, 0.5, 1.0);
+        gl_Position = light * pos ;
+    }
+}
+)";
+
+const char* vk_vertex_code = R"(
+#version 400
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (std140, binding = 0) uniform buffer
+{
+  mat4 mvp;
+} uniformBuffer;
+
+layout (location = 0) in vec4 pos;
+layout (location = 1) in vec4 inColor;
+
+layout (location = 0) out vec4 outColor;
+
+void main()
+{
+  outColor = inColor;
+  gl_Position = uniformBuffer.mvp * pos;
+}
+)";
+
+const char* vk_vertex_instanced = R"(
+#version 400
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (std140, binding = 0) uniform buffer
+{
+  mat4 mvp;
+  mat4 light;
+} uniformBuffer;
+
+layout (location = 0) in vec4 pos;
+layout (location = 1) in vec4 inColor;
+
+layout (location = 0) out vec4 outColor;
+
+void main()
+{
+    if(gl_InstanceIndex==1) {
+        outColor = inColor;
+        gl_Position = uniformBuffer.mvp * pos;
+    }
+    else {
+        outColor = vec4(1.0, 1.0, 0.5, 1.0);
+        gl_Position = uniformBuffer.light * pos;
+    }
+}
+)";
+// fragment shader with (C)olor in and (C)olor out
+const char* fragment_code = GLSL_VERSION R"(
+layout (location = 0) in vec4 color;
+layout (location = 0) out vec4 outColor;
+
+
+void main()
+{
+    outColor = color;
+}
+)";
+
+const char* vk_vert_inv_z = R"(
+#version 400
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (std140, binding = 0) uniform buffer
+{
+  mat4 mvp;
+  mat4 light;
+} uniformBuffer;
+
+layout (location = 0) in vec4 pos;
+layout (location = 1) in vec4 inColor;
+
+layout (location = 0) out vec4 outColor;
+layout (location = 1) out vec4 vPos;
+
+void main()
+{
+    if(gl_InstanceIndex==1) {
+        outColor = inColor;
+        gl_Position = uniformBuffer.mvp * pos;
+    }
+    else {
+        outColor = vec4(1.0, 1.0, 0.5, 1.0);
+        gl_Position = uniformBuffer.light * pos;
+    }
+    vPos = gl_Position;
+}
+)";
+
+const char* vk_frag_inv_z = GLSL_VERSION R"(
+layout (location = 0) in vec4 color;
+layout (location = 1) in vec4 vPos;
+
+layout (location = 0) out vec4 outColor;
+
+// far & near values are the same of perspective() call and can be passed to shader
+float far = 100.0;  // copied here for simplicity
+float near = .1;
+
+float linearizeDepth(float d) // draw in zNDC [0, 1]
+{
+    return near * far / (far + d * (near - far));
+}
+
+void main()
+{
+    outColor = color;
+    // invert depth value
+    gl_FragDepth = 1.0 - linearizeDepth(vPos.z);
+
+}
+)";
+
+
+struct VertexPC
+{
+  float x, y, z, w;   // Position
+  float r, g, b, a;   // Color
+};
+
+static const VertexPC coloredCubeData[] =
+{
+  // red face
+  { -1.0f, -1.0f,  1.0f, 1.0f,    0.0f, 0.0f, 1.0f, 1.0f },
+  { -1.0f,  1.0f,  1.0f, 1.0f,    0.0f, 0.0f, 1.0f, 1.0f },
+  {  1.0f, -1.0f,  1.0f, 1.0f,    0.0f, 0.0f, 1.0f, 1.0f },
+  {  1.0f, -1.0f,  1.0f, 1.0f,    0.0f, 0.0f, 1.0f, 1.0f },
+  { -1.0f,  1.0f,  1.0f, 1.0f,    0.0f, 0.0f, 1.0f, 1.0f },
+  {  1.0f,  1.0f,  1.0f, 1.0f,    0.0f, 0.0f, 1.0f, 1.0f },
+  // green face
+  { -1.0f, -1.0f, -1.0f, 1.0f,    0.7f, 0.7f, 1.0f, 1.0f },
+  {  1.0f, -1.0f, -1.0f, 1.0f,    0.7f, 0.7f, 1.0f, 1.0f },
+  { -1.0f,  1.0f, -1.0f, 1.0f,    0.7f, 0.7f, 1.0f, 1.0f },
+  { -1.0f,  1.0f, -1.0f, 1.0f,    0.7f, 0.7f, 1.0f, 1.0f },
+  {  1.0f, -1.0f, -1.0f, 1.0f,    0.7f, 0.7f, 1.0f, 1.0f },
+  {  1.0f,  1.0f, -1.0f, 1.0f,    0.7f, 0.7f, 1.0f, 1.0f },
+  // blue face
+  { -1.0f,  1.0f,  1.0f, 1.0f,    1.0f, 0.7f, 0.7f, 1.0f },
+  { -1.0f, -1.0f,  1.0f, 1.0f,    1.0f, 0.7f, 0.7f, 1.0f },
+  { -1.0f,  1.0f, -1.0f, 1.0f,    1.0f, 0.7f, 0.7f, 1.0f },
+  { -1.0f,  1.0f, -1.0f, 1.0f,    1.0f, 0.7f, 0.7f, 1.0f },
+  { -1.0f, -1.0f,  1.0f, 1.0f,    1.0f, 0.7f, 0.7f, 1.0f },
+  { -1.0f, -1.0f, -1.0f, 1.0f,    1.0f, 0.7f, 0.7f, 1.0f },
+  // yellow face
+  {  1.0f,  1.0f,  1.0f, 1.0f,    1.0f, 0.0f, 0.0f, 1.0f },
+  {  1.0f,  1.0f, -1.0f, 1.0f,    1.0f, 0.0f, 0.0f, 1.0f },
+  {  1.0f, -1.0f,  1.0f, 1.0f,    1.0f, 0.0f, 0.0f, 1.0f },
+  {  1.0f, -1.0f,  1.0f, 1.0f,    1.0f, 0.0f, 0.0f, 1.0f },
+  {  1.0f,  1.0f, -1.0f, 1.0f,    1.0f, 0.0f, 0.0f, 1.0f },
+  {  1.0f, -1.0f, -1.0f, 1.0f,    1.0f, 0.0f, 0.0f, 1.0f },
+  // magenta face
+  {  1.0f,  1.0f,  1.0f, 1.0f,    0.0f, 1.0f, 0.0f, 1.0f },
+  { -1.0f,  1.0f,  1.0f, 1.0f,    0.0f, 1.0f, 0.0f, 1.0f },
+  {  1.0f,  1.0f, -1.0f, 1.0f,    0.0f, 1.0f, 0.0f, 1.0f },
+  {  1.0f,  1.0f, -1.0f, 1.0f,    0.0f, 1.0f, 0.0f, 1.0f },
+  { -1.0f,  1.0f,  1.0f, 1.0f,    0.0f, 1.0f, 0.0f, 1.0f },
+  { -1.0f,  1.0f, -1.0f, 1.0f,    0.0f, 1.0f, 0.0f, 1.0f },
+  // cyan face
+  {  1.0f, -1.0f,  1.0f, 1.0f,    0.7f, 1.0f, 0.7f, 1.0f },
+  {  1.0f, -1.0f, -1.0f, 1.0f,    0.7f, 1.0f, 0.7f, 1.0f },
+  { -1.0f, -1.0f,  1.0f, 1.0f,    0.7f, 1.0f, 0.7f, 1.0f },
+  { -1.0f, -1.0f,  1.0f, 1.0f,    0.7f, 1.0f, 0.7f, 1.0f },
+  {  1.0f, -1.0f, -1.0f, 1.0f,    0.7f, 1.0f, 0.7f, 1.0f },
+  { -1.0f, -1.0f, -1.0f, 1.0f,    0.7f, 1.0f, 0.7f, 1.0f },
+};
+

easy_examples/cube_OpenGL/CMakeLists.txt

@@ -0,0 +1,75 @@
+#------------------------------------------------------------------------------
+#  Copyright (c) 2018-2025 Michele Morrone
+#  All rights reserved.
+#
+#  https://michelemorrone.eu - https://brutpitt.com
+#
+#  X: https://x.com/BrutPitt - GitHub: https://github.com/BrutPitt
+#
+#  direct mail: brutpitt(at)gmail.com - me(at)michelemorrone.eu
+#
+#  This software is distributed under the terms of the BSD 2-Clause license
+#------------------------------------------------------------------------------
+cmake_minimum_required(VERSION 3.27)
+project(oglCubeExamples)
+
+find_package(glm CONFIG)
+
+option(IMGUIZMO_USES_GLM "Use GLM instead of internal vgMath" OFF)
+# glm_FOUND OR 
+if(glm_FOUND OR IMGUIZMO_USES_GLM)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVGIZMO_USES_GLM")
+endif()
+
+set(CMAKE_CXX_STANDARD 17)
+
+find_package(OpenGL)
+
+if(OPENGL_FOUND)
+    message(STATUS "OPENGL_INCLUDE_DIRS: ${OPENGL_INCLUDE_DIRS}")
+    message(STATUS "OPENGL_LIBRARY: ${OPENGL_LIBRARY}")
+
+    include_directories(${OPENGL_INCLUDE_DIRS})
+else ()
+    message (FATAL_ERROR "OPENGL not found... REQUIRED!!!!")
+endif(OPENGL_FOUND)
+
+find_package(glfw3 CONFIG)
+find_package(SDL2 CONFIG)
+include_directories(${SDL2_INCLUDE_DIRS})
+
+
+set(SRC          ${CMAKE_SOURCE_DIR})
+set(COMMONS_DIR  ${SRC}/../commons)
+set(TOOLS_DIR    ${CMAKE_SOURCE_DIR}/../../libs)
+set(VGIZMO_PARENT_DIR ${CMAKE_SOURCE_DIR}/../..)
+set(VGIZMO_DIR ${VGIZMO_PARENT_DIR}/vGizmo3D)
+
+include_directories(${TOOLS_DIR})
+include_directories(${VGIZMO_PARENT_DIR})
+include_directories(${SRC}/../commons)
+
+set(SOURCE_FILES
+        ${SRC}/oglDebug.cpp
+        ${SRC}/oglDebug.h
+        ${COMMONS_DIR}/shadersAndModel.h
+        ${TOOLS_DIR}/glad/glad.cpp
+        ${TOOLS_DIR}/glad/glad.h)
+
+
+file( GLOB APP_SOURCES ${SRC}/oglCube*.cpp )
+foreach( oglCubeSourceFile ${APP_SOURCES} )
+    get_filename_component( oglCubeName ${oglCubeSourceFile} NAME_WE )      # Cut off the file extension and directory path
+    project(${oglCubeName})
+
+    if(${oglCubeName} MATCHES "SDL")
+        add_executable( ${PROJECT_NAME} ${oglCubeSourceFile} ${SOURCE_FILES} ${SOURCE_FILES_SDL} ${COMMONS_UI_FILES})
+        target_link_libraries(${PROJECT_NAME} ${SDL2_LIBRARIES})
+    else()
+        add_executable( ${PROJECT_NAME} ${oglCubeSourceFile} ${SOURCE_FILES} ${SOURCE_FILES_GLFW} ${COMMONS_UI_FILES})
+        target_link_libraries(${PROJECT_NAME} glfw)
+    endif()
+
+    target_link_libraries(${oglCubeName} ${CMAKE_DL_LIBS} ${OPENGL_LIBRARY})
+endforeach( oglCubeSourceFile ${APP_SOURCES} )
+

easy_examples/cube_OpenGL/license.txt

@@ -0,0 +1,25 @@
+BSD 2-Clause License
+
+Copyright (c) 2025 Michele Morrone
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.