REVIEWED: raylib_opengl_interop

1 files changed, 0 insertions, 132 deletions

diff --git a/examples/others/opengl_interop.c b/examples/others/opengl_interop.c
deleted file mode 100644
index 5d435f2a..00000000
--- a/examples/others/opengl_interop.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*******************************************************************************************
-*
-*   raylib [shaders] example - OpenGL point particle system
-*
-*   This example has been created using raylib 2ad3eb1 (www.raylib.com)
-*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
-*
-*   Example contributed by Stephan Soller (@arkanis -  http://arkanis.de/)
-*   and reviewed by Ramon Santamaria (@raysan5)
-*
-*   Copyright (c) 2021 Stephan Soller (@arkanis) and Ramon Santamaria (@raysan5)
-*
-********************************************************************************************
-*
-*   Mixes raylib and plain OpenGL code to draw a GL_POINTS based particle system. The
-*   primary point is to demonstrate raylib and OpenGL interop.
-*
-*   rlgl batched draw operations internally so we have to flush the current batch before
-*   doing our own OpenGL work (rlDrawRenderBatchActive()).
-*
-*   The example also demonstrates how to get the current model view projection matrix of
-*   raylib. That way raylib cameras and so on work as expected.
-*
-********************************************************************************************/
-
-#include "raylib.h"
-#include "rlgl.h"
-#include "glad.h"
-
-#if defined(PLATFORM_DESKTOP)
-    #define GLSL_VERSION            330
-#else   // PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB
-    #define GLSL_VERSION            100
-#endif
-
-int main()
-{
-    // Initialization
-    //--------------------------------------------------------------------------------------
-    const int screenWidth = 800;
-    const int screenHeight = 450;
-
-    InitWindow(screenWidth, screenHeight, "raylib - point particles");
-
-    Shader shader = LoadShader(
-        TextFormat("resources/shaders/glsl%i/point_particle.vs", GLSL_VERSION),
-        TextFormat("resources/shaders/glsl%i/point_particle.fs", GLSL_VERSION));
-    int currentTimeLoc = GetShaderLocation(shader, "currentTime");
-    int colorLoc = GetShaderLocation(shader, "color");
-
-    // Initialize the vertex buffer for the particles and assign each particle random values
-    struct { float x, y, period; } particles[10000];
-    const size_t particleCount = sizeof(particles) / sizeof(particles[0]);
-    for (size_t i = 0; i < particleCount; i++)
-    {
-        particles[i].x = GetRandomValue(20, screenWidth - 20);
-        particles[i].y = GetRandomValue(50, screenHeight - 20);
-        // Give each particle a slightly different period. But don't spread it to much. This way the particles line up
-        // every so often and you get a glimps of what is going on.
-        particles[i].period = GetRandomValue(10, 30) / 10.0f;
-    }
-
-    // Create a plain OpenGL vertex buffer with the data and an vertex array object that feeds the data from the buffer
-    // into the vertexPosition shader attribute.
-    GLuint vao = 0, vbo = 0;
-    glGenVertexArrays(1, &vao);
-    glBindVertexArray(vao);
-        glGenBuffers(1, &vbo);
-        glBindBuffer(GL_ARRAY_BUFFER, vbo);
-        glBufferData(GL_ARRAY_BUFFER, sizeof(particles), particles, GL_STATIC_DRAW);
-        // Note: LoadShader() automatically fetches the attribute index of "vertexPosition" and saves it in shader.locs[SHADER_LOC_VERTEX_POSITION]
-        glVertexAttribPointer(shader.locs[SHADER_LOC_VERTEX_POSITION], 3, GL_FLOAT, GL_FALSE, 0, 0);
-        glEnableVertexAttribArray(0);
-        glBindBuffer(GL_ARRAY_BUFFER, 0);
-    glBindVertexArray(0);
-
-    // Allows the vertex shader to set the point size of each particle individually
-    glEnable(GL_PROGRAM_POINT_SIZE);
-
-    SetTargetFPS(60);
-    //--------------------------------------------------------------------------------------
-
-    // Main game loop
-    while (!WindowShouldClose())    // Detect window close button or ESC key
-    {
-        // Draw
-        //----------------------------------------------------------------------------------
-        BeginDrawing();
-            ClearBackground(WHITE);
-
-            DrawRectangle(10, 10, 210, 30, MAROON);
-            DrawText(TextFormat("%zu particles in one vertex buffer", particleCount), 20, 20, 10, RAYWHITE);
-
-            // Switch to plain OpenGL
-            //------------------------------------------------------------------------------
-            // rlglDraw() in raylib 3.5
-            rlDrawRenderBatchActive();
-            glUseProgram(shader.id);
-                glUniform1f(currentTimeLoc, GetTime());
-
-                Vector4 color = ColorNormalize((Color){ 255, 0, 0, 128 });
-                glUniform4fv(colorLoc, 1, (float*)&color);
-
-                // The the current model view projection matrix so the particle system is displayed and transformed
-                // (e.g. by cameras) just like everything else.
-                // GetMatrixModelview() and GetMatrixProjection() in raylib 3.5
-                Matrix modelViewProjection = MatrixMultiply(rlGetMatrixModelview(), rlGetMatrixProjection());
-                glUniformMatrix4fv(shader.locs[SHADER_LOC_MATRIX_MVP], 1, false, MatrixToFloat(modelViewProjection));
-
-                glBindVertexArray(vao);
-                    glDrawArrays(GL_POINTS, 0, particleCount);
-                glBindVertexArray(0);
-            glUseProgram(0);
-
-            // And back to raylib again
-            //------------------------------------------------------------------------------
-            DrawFPS(screenWidth - 100, 10);
-        EndDrawing();
-        //----------------------------------------------------------------------------------
-    }
-
-    // De-Initialization
-    //--------------------------------------------------------------------------------------
-    glDeleteBuffers(1, &vbo);
-    glDeleteVertexArrays(1, &vao);
-
-    UnloadShader(shader);
-    CloseWindow();        // Close window and OpenGL context
-    //--------------------------------------------------------------------------------------
-
-    return 0;
-}
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