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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,214 @@ | ||
| const std = @import("std"); | ||
| const sokol = @import("sokol"); | ||
| const sg = sokol.gfx; | ||
|
|
||
| const zigltf = @import("zigltf"); | ||
| const rowmath = @import("rowmath"); | ||
| const framework = @import("framework"); | ||
| // const utils = @import("utils"); | ||
| const Scene = framework.Scene; | ||
| // const gltf_fetcher = @import("gltf_fetcher.zig"); | ||
|
|
||
| // https://github.khronos.org/glTF-Tutorials/gltfTutorial/gltfTutorial_003_MinimalGltfFile.html | ||
| const minimal_gltf = | ||
| \\{ | ||
| \\ "scene": 0, | ||
| \\ "scenes" : [ | ||
| \\ { | ||
| \\ "nodes" : [ 0 ] | ||
| \\ } | ||
| \\ ], | ||
| \\ | ||
| \\ "nodes" : [ | ||
| \\ { | ||
| \\ "mesh" : 0 | ||
| \\ } | ||
| \\ ], | ||
| \\ | ||
| \\ "meshes" : [ | ||
| \\ { | ||
| \\ "primitives" : [ { | ||
| \\ "attributes" : { | ||
| \\ "POSITION" : 1 | ||
| \\ }, | ||
| \\ "indices" : 0 | ||
| \\ } ] | ||
| \\ } | ||
| \\ ], | ||
| \\ | ||
| \\ "buffers" : [ | ||
| \\ { | ||
| \\ "uri" : "data:application/octet-stream;base64,AAABAAIAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAACAPwAAAAA=", | ||
| \\ "byteLength" : 44 | ||
| \\ } | ||
| \\ ], | ||
| \\ "bufferViews" : [ | ||
| \\ { | ||
| \\ "buffer" : 0, | ||
| \\ "byteOffset" : 0, | ||
| \\ "byteLength" : 6, | ||
| \\ "target" : 34963 | ||
| \\ }, | ||
| \\ { | ||
| \\ "buffer" : 0, | ||
| \\ "byteOffset" : 8, | ||
| \\ "byteLength" : 36, | ||
| \\ "target" : 34962 | ||
| \\ } | ||
| \\ ], | ||
| \\ "accessors" : [ | ||
| \\ { | ||
| \\ "bufferView" : 0, | ||
| \\ "byteOffset" : 0, | ||
| \\ "componentType" : 5123, | ||
| \\ "count" : 3, | ||
| \\ "type" : "SCALAR", | ||
| \\ "max" : [ 2 ], | ||
| \\ "min" : [ 0 ] | ||
| \\ }, | ||
| \\ { | ||
| \\ "bufferView" : 1, | ||
| \\ "byteOffset" : 0, | ||
| \\ "componentType" : 5126, | ||
| \\ "count" : 3, | ||
| \\ "type" : "VEC3", | ||
| \\ "max" : [ 1.0, 1.0, 0.0 ], | ||
| \\ "min" : [ 0.0, 0.0, 0.0 ] | ||
| \\ } | ||
| \\ ], | ||
| \\ | ||
| \\ "asset" : { | ||
| \\ "version" : "2.0" | ||
| \\ } | ||
| \\} | ||
| ; | ||
|
|
||
| const state = struct { | ||
| var pass_action = sg.PassAction{}; | ||
| var input = rowmath.InputState{}; | ||
| var orbit = rowmath.OrbitCamera{}; | ||
| var gltf: ?std.json.Parsed(zigltf.Gltf) = null; | ||
| var scene = Scene{}; | ||
| }; | ||
|
|
||
| export fn init() void { | ||
| sg.setup(.{ | ||
| .environment = sokol.glue.environment(), | ||
| .logger = .{ .func = sokol.log.func }, | ||
| }); | ||
| sokol.gl.setup(.{ | ||
| .logger = .{ .func = sokol.log.func }, | ||
| }); | ||
|
|
||
| var debugtext_desc = sokol.debugtext.Desc{ | ||
| .logger = .{ .func = sokol.log.func }, | ||
| }; | ||
| debugtext_desc.fonts[0] = sokol.debugtext.fontOric(); | ||
| sokol.debugtext.setup(debugtext_desc); | ||
|
|
||
| state.pass_action.colors[0] = .{ | ||
| .load_action = .CLEAR, | ||
| .clear_value = .{ .r = 0.1, .g = 0.1, .b = 0.1, .a = 1.0 }, | ||
| }; | ||
|
|
||
| state.scene.init(std.heap.c_allocator); | ||
|
|
||
| // parse gltf | ||
| const allocator = std.heap.c_allocator; | ||
| const parsed = std.json.parseFromSlice( | ||
| zigltf.Gltf, | ||
| allocator, | ||
| minimal_gltf, | ||
| .{ | ||
| .ignore_unknown_fields = true, | ||
| }, | ||
| ) catch |e| { | ||
| std.debug.print("{s}\n", .{@errorName(e)}); | ||
| @panic("parseFromSlice"); | ||
| }; | ||
|
|
||
| // build | ||
| state.scene.load(parsed, &.{}) catch |e| { | ||
| std.debug.print("{s}\n", .{@errorName(e)}); | ||
| @panic("Scene.load"); | ||
| }; | ||
| } | ||
|
|
||
| export fn frame() void { | ||
| state.input.screen_width = sokol.app.widthf(); | ||
| state.input.screen_height = sokol.app.heightf(); | ||
| state.orbit.frame(state.input); | ||
| state.input.mouse_wheel = 0; | ||
|
|
||
| sokol.debugtext.canvas(sokol.app.widthf() * 0.5, sokol.app.heightf() * 0.5); | ||
| sokol.debugtext.pos(0.5, 0.5); | ||
| sokol.debugtext.puts("minimal_gltf"); | ||
|
|
||
| sg.beginPass(.{ | ||
| .action = state.pass_action, | ||
| .swapchain = sokol.glue.swapchain(), | ||
| }); | ||
| state.scene.draw(state.orbit.camera); | ||
| sokol.debugtext.draw(); | ||
| sg.endPass(); | ||
| sg.commit(); | ||
| } | ||
|
|
||
| export fn event(e: [*c]const sokol.app.Event) void { | ||
| switch (e.*.type) { | ||
| .MOUSE_DOWN => { | ||
| switch (e.*.mouse_button) { | ||
| .LEFT => { | ||
| state.input.mouse_left = true; | ||
| }, | ||
| .RIGHT => { | ||
| state.input.mouse_right = true; | ||
| }, | ||
| .MIDDLE => { | ||
| state.input.mouse_middle = true; | ||
| }, | ||
| .INVALID => {}, | ||
| } | ||
| }, | ||
| .MOUSE_UP => { | ||
| switch (e.*.mouse_button) { | ||
| .LEFT => { | ||
| state.input.mouse_left = false; | ||
| }, | ||
| .RIGHT => { | ||
| state.input.mouse_right = false; | ||
| }, | ||
| .MIDDLE => { | ||
| state.input.mouse_middle = false; | ||
| }, | ||
| .INVALID => {}, | ||
| } | ||
| }, | ||
| .MOUSE_MOVE => { | ||
| state.input.mouse_x = e.*.mouse_x; | ||
| state.input.mouse_y = e.*.mouse_y; | ||
| }, | ||
| .MOUSE_SCROLL => { | ||
| state.input.mouse_wheel = e.*.scroll_y; | ||
| }, | ||
| else => {}, | ||
| } | ||
| } | ||
|
|
||
| export fn cleanup() void { | ||
| sg.shutdown(); | ||
| } | ||
|
|
||
| pub fn main() void { | ||
| sokol.app.run(.{ | ||
| .init_cb = init, | ||
| .frame_cb = frame, | ||
| .cleanup_cb = cleanup, | ||
| .event_cb = event, | ||
| .width = 800, | ||
| .height = 600, | ||
| .window_title = "rowmath: examples/sokol/camera_simple", | ||
| .icon = .{ .sokol_default = true }, | ||
| .logger = .{ .func = sokol.log.func }, | ||
| }); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,12 @@ | ||
| pub usingnamespace @import("Gltf.zig"); | ||
| pub usingnamespace @import("Asset.zig"); | ||
| pub usingnamespace @import("Buffer.zig"); | ||
| pub usingnamespace @import("BufferView.zig"); | ||
| pub usingnamespace @import("Accessor.zig"); | ||
| pub usingnamespace @import("Image.zig"); | ||
| pub usingnamespace @import("Texture.zig"); | ||
| pub usingnamespace @import("Material.zig"); | ||
| pub usingnamespace @import("Mesh.zig"); | ||
| pub usingnamespace @import("Node.zig"); | ||
| pub usingnamespace @import("Skin.zig"); | ||
| pub usingnamespace @import("Scene.zig"); |