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Diffstat (limited to 'examples/shaders_shapes_textures.lua')
| -rw-r--r-- | examples/shaders_shapes_textures.lua | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/examples/shaders_shapes_textures.lua b/examples/shaders_shapes_textures.lua new file mode 100644 index 00000000..0adbefd2 --- /dev/null +++ b/examples/shaders_shapes_textures.lua @@ -0,0 +1,101 @@ +------------------------------------------------------------------------------------------- +-- +-- raylib [shaders] example - Apply a shader to some shape or texture +-- +-- NOTE: This example requires raylib OpenGL 3.3 or ES2 versions for shaders support, +-- OpenGL 1.1 does not support shaders, recompile raylib to OpenGL 3.3 version. +-- +-- NOTE: Shaders used in this example are #version 330 (OpenGL 3.3), to test this example +-- on OpenGL ES 2.0 platforms (Android, Raspberry Pi, HTML5), use #version 100 shaders +-- raylib comes with shaders ready for both versions, check raylib/shaders install folder +-- +-- This example has been created using raylib 1.6 (www.raylib.com) +-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details) +-- +-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5) +-- +------------------------------------------------------------------------------------------- + +-- Initialization +------------------------------------------------------------------------------------------- +local screenWidth = 800 +local screenHeight = 450 + +InitWindow(screenWidth, screenHeight, "raylib [shaders] example - shapes and texture shaders") + +local sonic = LoadTexture("resources/texture_formats/sonic.png") + +-- NOTE: Using GLSL 330 shader version, on OpenGL ES 2.0 use GLSL 100 shader version +local shader = LoadShader("resources/shaders/glsl330/base.vs", + "resources/shaders/glsl330/grayscale.fs") + +-- Shader usage is also different than models/postprocessing, shader is just activated when required + +SetTargetFPS(60) -- Set our game to run at 60 frames-per-second +------------------------------------------------------------------------------------------- + +-- Main game loop +while not WindowShouldClose() do -- Detect window close button or ESC key + -- Update + --------------------------------------------------------------------------------------- + -- TODO: Update your variables here + --------------------------------------------------------------------------------------- + + -- Draw + --------------------------------------------------------------------------------------- + BeginDrawing() + + ClearBackground(RAYWHITE) + + -- Start drawing with default shader + + DrawText("USING DEFAULT SHADER", 20, 40, 10, RED) + + DrawCircle(80, 120, 35, DARKBLUE) + DrawCircleGradient(80, 220, 60, GREEN, SKYBLUE) + DrawCircleLines(80, 340, 80, DARKBLUE) + + + -- Activate our custom shader to be applied on next shapes/textures drawings + BeginShaderMode(shader) + + DrawText("USING CUSTOM SHADER", 190, 40, 10, RED) + + DrawRectangle(250 - 60, 90, 120, 60, RED) + DrawRectangleGradient(250 - 90, 170, 180, 130, MAROON, GOLD) + DrawRectangleLines(250 - 40, 320, 80, 60, ORANGE) + + -- Activate our default shader for next drawings + EndShaderMode() + + DrawText("USING DEFAULT SHADER", 370, 40, 10, RED) + + DrawTriangle(Vector2(430, 80), + Vector2(430 - 60, 150), + Vector2(430 + 60, 150), VIOLET) + + DrawTriangleLines(Vector2(430, 160), + Vector2(430 - 20, 230), + Vector2(430 + 20, 230), DARKBLUE) + + DrawPoly(Vector2(430, 320), 6, 80, 0, BROWN) + + -- Activate our custom shader to be applied on next shapes/textures drawings + BeginShaderMode(shader) + + DrawTexture(sonic, 380, -10, WHITE) -- Using custom shader + + -- Activate our default shader for next drawings + EndShaderMode() + + EndDrawing() + --------------------------------------------------------------------------------------- +} + +-- De-Initialization +------------------------------------------------------------------------------------------- +UnloadShader(shader) -- Unload shader +UnloadTexture(sonic) -- Unload texture + +CloseWindow() -- Close window and OpenGL context +-------------------------------------------------------------------------------------------
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