Add function DrawCubeTextureRec
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Timon de Groot
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7d995d95eb
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4817ab46f3
74
examples/models/models_cube_texture_region.c
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74
examples/models/models_cube_texture_region.c
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/*******************************************************************************************
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*
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* raylib [core] example - Draw cube with texture regions
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*
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* This example has been created using raylib 4.0 (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) 2021 Timon de Groot (@tdgroot) and Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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int main(void)
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d cube texture region");
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// Define the camera to look into our 3d world
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Camera3D camera = { 0 };
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camera.position = (Vector3){ 10.0f, 10.0f, 10.0f }; // Camera position
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camera.target = (Vector3){ 0.0f, 0.0f, 0.0f }; // Camera looking at point
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camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target)
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camera.fovy = 45.0f; // Camera field-of-view Y
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camera.projection = CAMERA_PERSPECTIVE; // Camera mode type
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SetCameraMode(camera, CAMERA_FREE); // Set a free camera mode
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// Load texture and define texture regions
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Texture2D texture = LoadTexture("resources/sheet.png"); // Load texture sheet
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Rectangle sprite1 = (Rectangle){ 0.0f, 0.0f, 32.0f, 32.0f }; // Define texture region for sprite 1
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Rectangle sprite2 = (Rectangle){ 32.0f, 0.0f, 32.0f, 32.0f }; // Define texture region for sprite 2
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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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if (IsKeyDown('Z')) camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };
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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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DrawCubeTextureRec(texture, sprite1, (Vector3){4.0f, 0.0f, -1.0f }, 2.0f, 2.0f, 2.0f, WHITE);
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DrawCubeTextureRec(texture, sprite2, (Vector3){-4.0f, 0.0f, 1.0f }, 2.0f, 2.0f, 2.0f, BLUE);
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EndMode3D();
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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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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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}
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BIN
examples/models/resources/sheet.png
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BIN
examples/models/resources/sheet.png
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After Width: | Height: | Size: 355 B |
151
src/models.c
151
src/models.c
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@ -464,6 +464,157 @@ void DrawCubeTexture(Texture2D texture, Vector3 position, float width, float hei
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rlSetTexture(0);
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}
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void DrawCubeTextureRec(Texture2D texture, Rectangle source, Vector3 position, float width, float height, float length, Color color)
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{
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float x = position.x;
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float y = position.y;
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float z = position.z;
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float texture_width = (float)texture.width;
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float texture_height = (float)texture.height;
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rlCheckRenderBatchLimit(36);
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rlSetTexture(texture.id);
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rlBegin(RL_QUADS);
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rlColor4ub(color.r, color.g, color.b, color.a);
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// Front Face
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{
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// Normal Pointing Towards Viewer
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rlNormal3f(0.0f, 0.0f, 1.0f);
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// Bottom Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x - width/2, y - height/2, z + length/2);
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// Bottom Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x + width/2, y - height/2, z + length/2);
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// Top Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, source.y / texture_height);
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rlVertex3f(x + width/2, y + height/2, z + length/2);
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// Top Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, source.y / texture_height);
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rlVertex3f(x - width/2, y + height/2, z + length/2);
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}
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// Back Face
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{
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// Normal Pointing Away From Viewer
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rlNormal3f(0.0f, 0.0f, - 1.0f);
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// Bottom Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x - width/2, y - height/2, z - length/2);
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// Top Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, source.y / texture_height);
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rlVertex3f(x - width/2, y + height/2, z - length/2);
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// Top Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, source.y / texture_height);
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rlVertex3f(x + width/2, y + height/2, z - length/2);
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// Bottom Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x + width/2, y - height/2, z - length/2);
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}
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// Top Face
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{
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// Normal Pointing Up
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rlNormal3f(0.0f, 1.0f, 0.0f);
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// Top Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, source.y / texture_height);
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rlVertex3f(x - width/2, y + height/2, z - length/2);
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// Bottom Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x - width/2, y + height/2, z + length/2);
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// Bottom Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x + width/2, y + height/2, z + length/2);
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// Top Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, source.y / texture_height);
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rlVertex3f(x + width/2, y + height/2, z - length/2);
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}
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// Bottom Face
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{
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// Normal Pointing Down
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rlNormal3f(0.0f, - 1.0f, 0.0f);
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// Top Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, source.y / texture_height);
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rlVertex3f(x - width/2, y - height/2, z - length/2);
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// Top Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, source.y / texture_height);
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rlVertex3f(x + width/2, y - height/2, z - length/2);
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// Bottom Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x + width/2, y - height/2, z + length/2);
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// Bottom Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x - width/2, y - height/2, z + length/2);
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}
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// Right face
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{
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// Normal Pointing Right
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rlNormal3f(1.0f, 0.0f, 0.0f);
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// Bottom Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x + width/2, y - height/2, z - length/2);
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// Top Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, source.y / texture_height);
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rlVertex3f(x + width/2, y + height/2, z - length/2);
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// Top Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, source.y / texture_height);
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rlVertex3f(x + width/2, y + height/2, z + length/2);
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// Bottom Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x + width/2, y - height/2, z + length/2);
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}
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// Left Face
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{
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// Normal Pointing Left
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rlNormal3f( - 1.0f, 0.0f, 0.0f);
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// Bottom Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x - width/2, y - height/2, z - length/2);
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// Bottom Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, (source.y + source.height) / texture_height);
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rlVertex3f(x - width/2, y - height/2, z + length/2);
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// Top Right Of The Texture and Quad
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rlTexCoord2f((source.x + source.width) / texture_width, source.y / texture_height);
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rlVertex3f(x - width/2, y + height/2, z + length/2);
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// Top Left Of The Texture and Quad
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rlTexCoord2f(source.x / texture_width, source.y / texture_height);
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rlVertex3f(x - width/2, y + height/2, z - length/2);
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}
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rlEnd();
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rlSetTexture(0);
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}
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// Draw sphere
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void DrawSphere(Vector3 centerPos, float radius, Color color)
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{
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@ -1374,6 +1374,7 @@ RLAPI void DrawCubeV(Vector3 position, Vector3 size, Color color);
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RLAPI void DrawCubeWires(Vector3 position, float width, float height, float length, Color color); // Draw cube wires
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RLAPI void DrawCubeWiresV(Vector3 position, Vector3 size, Color color); // Draw cube wires (Vector version)
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RLAPI void DrawCubeTexture(Texture2D texture, Vector3 position, float width, float height, float length, Color color); // Draw cube textured
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RLAPI void DrawCubeTextureRec(Texture2D texture, Rectangle source, Vector3 position, float width, float height, float length, Color color); // Draw cube with a region of a texture
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RLAPI void DrawSphere(Vector3 centerPos, float radius, Color color); // Draw sphere
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RLAPI void DrawSphereEx(Vector3 centerPos, float radius, int rings, int slices, Color color); // Draw sphere with extended parameters
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RLAPI void DrawSphereWires(Vector3 centerPos, float radius, int rings, int slices, Color color); // Draw sphere wires
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