Add FSR and custom font examples.

examples/shaders_postprocess_fsr.lua

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+local screenWidth = 1920
+local screenHeight = 1080
+
+local preset = 3
+local default_sharpness = 1.0
+
+local presets = {
+  { 2.0, "Performance" },
+  { 1.7, "Balanced" },
+  { 1.5, "Quality" },
+  { 1.3, "Ultra Quality" },
+  { 1.0, "Custom (Native)" }
+}
+
+local use_fsr = true
+
+local ratio = presets[preset][1]
+
+local num_blocks = 15
+
+local screenSize = rl.new("Vector2", screenWidth, screenHeight)
+
+local fbWidth = screenWidth / ratio
+local fbHeight = screenHeight / ratio
+
+local fbSize = rl.new("Vector2", fbWidth, fbHeight)
+
+rl.SetConfigFlags(rl.FLAG_FULLSCREEN_MODE)
+rl.InitWindow(screenWidth, screenHeight, "raylua [shaders] example - AMD FSR")
+
+local render_texture = rl.LoadRenderTexture(fbWidth, fbHeight)
+
+local dest_fb = rl.LoadRenderTexture(screenWidth, screenHeight)
+
+local easu_shader = rl.LoadShader(nil, "resources/fsr/fsrEasu.frag")
+
+local srcSize_loc = rl.GetShaderLocation(easu_shader, "srcSize")
+local dstSize_loc = rl.GetShaderLocation(easu_shader, "dstSize")
+
+rl.SetShaderValue(easu_shader, srcSize_loc, fbSize, rl.SHADER_UNIFORM_VEC2)
+rl.SetShaderValue(easu_shader, dstSize_loc, screenSize, rl.SHADER_UNIFORM_VEC2)
+
+local rcas_shader = rl.LoadShader(nil, "resources/fsr/fsrRcas.frag")
+
+local sharpness_loc = rl.GetShaderLocation(rcas_shader, "sharpness")
+local size_loc = rl.GetShaderLocation(rcas_shader, "dstSize")
+
+local sharpness = rl.new("float[1]", default_sharpness)
+
+rl.SetShaderValue(rcas_shader, sharpness_loc, sharpness, rl.SHADER_UNIFORM_FLOAT)
+rl.SetShaderValue(rcas_shader, size_loc, screenSize, rl.SHADER_UNIFORM_VEC2)
+
+local camera = rl.new("Camera3D", {
+  position = { 30, 20, 30 },
+  target = { 0, 0, 0 },
+  up = { 0, 1, 0 },
+  fovy = 70,
+  type = rl.CAMERA_PERSPECTIVE
+})
+
+local enable_easu = false
+local enable_rcas = false
+
+local stop_animation = false
+local t = 0.0
+
+local bilinear = false
+
+while not rl.WindowShouldClose() do
+  if not stop_animation then
+    t = rl.GetTime()
+  end
+
+  local scale = (2.0 + math.sin(t)) * 0.7
+  local camera_time = t * 0.3
+  
+  camera.position.x = math.cos(camera_time) * 40.0
+  camera.position.z = math.sin(camera_time) * 40.0
+
+  if use_fsr then
+    rl.BeginTextureMode(render_texture)
+  else
+    rl.BeginDrawing()
+  end
+  
+  rl.BeginMode3D(camera)
+  rl.ClearBackground(rl.RAYWHITE)
+  
+  rl.DrawGrid(10, 5.0)
+
+  for x=0,num_blocks-1 do
+    for y=0,num_blocks-1 do
+      for z=0,num_blocks-1 do
+        local block_scale = (x + y + z) / 30
+        local scatter = math.sin(block_scale * 20.0 + t * 4.0)
+
+        local cube_pos = rl.new("Vector3",
+          (x - num_blocks / 2) * (scale * 3.0) + scatter,
+          (y - num_blocks / 2) * (scale * 2.0) + scatter,
+          (z - num_blocks / 2) * (scale * 3.0) + scatter)
+
+        local cube_color = rl.ColorFromHSV(
+          (((x + y + z) * 18) % 360), 0.75, 0.9
+        )
+
+        local cube_size = (2.4 - scale) * block_scale
+
+        rl.DrawCube(cube_pos, cube_size, cube_size, cube_size, cube_color)
+      end
+    end
+  end
+
+  rl.EndMode3D()
+  
+  if use_fsr then
+    rl.EndTextureMode()
+
+    rl.BeginTextureMode(dest_fb)
+    rl.ClearBackground(rl.RAYWHITE)
+
+    if enable_easu then
+      rl.BeginShaderMode(easu_shader)
+    end
+    rl.DrawTextureEx(render_texture.texture, screenSize, 180, ratio, rl.WHITE)
+    if enable_easu then
+      rl.EndShaderMode()
+    end
+
+    rl.EndTextureMode()
+
+    rl.BeginDrawing()
+    rl.ClearBackground(rl.WHITE)
+
+    if enable_rcas then
+      rl.BeginShaderMode(rcas_shader)
+    end
+    rl.DrawTextureEx(dest_fb.texture, screenSize, 180, 1.0, rl.WHITE)
+    if enable_rcas then
+      rl.EndShaderMode()
+    end
+  end
+
+  rl.DrawFPS(10, 10)
+
+  if use_fsr then
+    rl.DrawText("EASU", 10, 32, 20, enable_easu and rl.GREEN or rl.RED)
+    rl.DrawText("RCAS", 10, 54, 20, enable_rcas and rl.GREEN or rl.RED)
+    rl.DrawText(string.format("sharpness: %.1f", sharpness[0]), 10, 74, 10, rl.BLACK)
+    rl.DrawText(string.format("Preset: %s (%.1f)", presets[preset][2], ratio), 10, 86, 10, rl.BLACK)
+    rl.DrawText(string.format("Resolution: %dx%d", fbWidth, fbHeight), 10, 98, 10, rl.BLACK)
+    rl.DrawText(string.format("Filter: %s", bilinear and "bilinear" or "point"), 10, 110, 10, rl.BLACK)
+  else
+    rl.DrawText("NATIVE", 10, 32, 20, rl.BLUE)
+  end
+
+  rl.EndDrawing()
+
+  if rl.IsKeyPressed(rl.KEY_E) then
+    enable_easu = not enable_easu
+  end
+
+  if rl.IsKeyPressed(rl.KEY_R) then
+    enable_rcas = not enable_rcas
+  end
+  
+  if rl.IsKeyPressed(rl.KEY_N) then
+    use_fsr = not use_fsr
+  end
+
+  if rl.IsKeyPressed(rl.KEY_LEFT) then
+    sharpness[0] = math.max(0.0, sharpness[0] - 0.1)
+    rl.SetShaderValue(rcas_shader, sharpness_loc, sharpness, rl.SHADER_UNIFORM_FLOAT)
+  end
+
+  if rl.IsKeyPressed(rl.KEY_RIGHT) then
+    sharpness[0] = math.min(2.0, sharpness[0] + 0.1)
+    rl.SetShaderValue(rcas_shader, sharpness_loc, sharpness, rl.SHADER_UNIFORM_FLOAT)
+  end
+  
+  if rl.IsKeyPressed(rl.KEY_F) then
+    bilinear = not bilinear
+  
+    rl.SetTextureFilter(render_texture.texture,
+      bilinear and rl.TEXTURE_FILTER_BILINEAR or rl.TEXTURE_FILTER_POINT)
+  end
+  
+  local preset_changed = false
+  if rl.IsKeyPressed(rl.KEY_UP) then
+    preset_changed = true
+    preset = preset + 1
+    if preset == #presets + 1 then
+      preset = 1
+    end
+  end
+
+  if rl.IsKeyPressed(rl.KEY_DOWN) then
+    preset_changed = true
+    preset = preset - 1
+    if preset == 0 then
+      preset = #presets
+    end
+  end
+  
+  if rl.IsKeyPressed(rl.KEY_S) then
+    stop_animation = not stop_animation
+  end
+  
+  if rl.IsKeyPressed(rl.KEY_F11) then
+    rl.ToggleFullscreen()
+  end
+
+  
+  if preset_changed then
+    ratio = presets[preset][1]
+    fbWidth = screenWidth / ratio
+    fbHeight = screenHeight / ratio
+
+    fbSize = rl.new("Vector2", fbWidth, fbHeight)
+    
+    rl.UnloadRenderTexture(render_texture)
+    
+    render_texture = rl.LoadRenderTexture(fbWidth, fbHeight)
+
+    
+    rl.SetTextureFilter(render_texture.texture,
+      bilinear and rl.TEXTURE_FILTER_BILINEAR or rl.TEXTURE_FILTER_POINT)
+  end
+end
+
+rl.UnloadRenderTexture(render_texture)
+rl.UnloadRenderTexture(dest_fb)
+rl.CloseWindow()

examples/text_custom_font.lua

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+rl.SetConfigFlags(rl.FLAG_VSYNC_HINT)
+
+rl.InitWindow(800, 450, "raylib [core] example - basic window")
+
+local font = rl.LoadFontEx("resources/NotoSans-Medium.ttf", 32, nil, 255)
+
+while not rl.WindowShouldClose() do
+  rl.BeginDrawing()
+  
+  rl.DrawFPS(10, 10)
+
+  rl.ClearBackground(rl.RAYWHITE)
+  rl.DrawTextEx(font, "Congrats! You created your first window!", rl.new("Vector2", 174, 200), 32, 0, rl.BLACK)
+  
+  rl.EndDrawing()
+end
+
+rl.CloseWindow()