97e40ced57
This commit implements a big update of rlgl module, intended to optimize some parts. This change could break some code bases... hopefully not, but it could. The BIG changes to the module are: - Replaced LINES-TRIANGLES-QUADS buffers by a single one, now all vertex data is accumulated on a single buffer and managed with registered draw calls. LINES-TRIANGLES-QUADS could be used the same way as before, rlgl will manage them carefully. That's a big improvement of the system. - Support multi-buffering if required. Just define MAX_BATCH_BUFFERING desired size (currently set to 1 batch). Should be enough for most of the situations. - Removed temporal accumulative buffers for matrix transformations, now transformations are directly applied to vertex when on rlVertex3f() - Reviewed rlPushMatrix()/rlPopMatrix() to be consistent with OpenGL 1.1, probably I should remove that ancient behaviour but... well, it was not consistent and now it is. - Minor tweaks: LoadText(), I broke it in last update... also multiple comments reviewed. - TODO: MAX_BATCH_ELEMENTS checking should probably be reviewed... done some tests and it works but...
75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/*******************************************************************************************
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*
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* raylib [models] example - Drawing billboards
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*
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* This example has been created using raylib 1.3 (www.raylib.com)
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* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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*
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* Copyright (c) 2015 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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int main()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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int screenWidth = 800;
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int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [models] example - drawing billboards");
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// Define the camera to look into our 3d world
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Camera camera = { 0 };
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camera.position = (Vector3){ 5.0f, 4.0f, 5.0f };
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camera.target = (Vector3){ 0.0f, 2.0f, 0.0f };
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camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };
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camera.fovy = 45.0f;
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camera.type = CAMERA_PERSPECTIVE;
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Texture2D bill = LoadTexture("resources/billboard.png"); // Our texture billboard
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Vector3 billPosition = { 0.0f, 2.0f, 0.0f }; // Position where draw billboard
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SetCameraMode(camera, CAMERA_ORBITAL); // Set an orbital camera mode
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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// Update
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//----------------------------------------------------------------------------------
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UpdateCamera(&camera); // Update camera
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(RAYWHITE);
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BeginMode3D(camera);
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DrawGrid(10, 1.0f); // Draw a grid
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DrawBillboard(camera, bill, billPosition, 2.0f, WHITE);
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EndMode3D();
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DrawFPS(10, 10);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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UnloadTexture(bill); // Unload texture
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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} |