example

6 files changed, 354 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..53eaa21
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..17e4504
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,228 @@
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+# It is not intended for manual editing.
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..8ad6de8
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "working-title"
+version = "0.1.0"
+authors = ["Tom Barrett <tom@tombarrett.xyz>"]
+edition = "2018"
+
+[dependencies]
+luminance = "0.38"
+luminance-derive = "0.5.2"
+luminance-glfw = "0.12"
diff --git a/src/fs.glsl b/src/fs.glsl
new file mode 100644
index 0000000..d2dd6bb
--- /dev/null
+++ b/src/fs.glsl
@@ -0,0 +1,7 @@
+in vec3 v_color;
+
+out vec3 frag_color;
+
+void main() {
+  frag_color = v_color;
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..bf607eb
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,98 @@
+use luminance::context::GraphicsContext;
+use luminance::pipeline::PipelineState;
+use luminance::render_state::RenderState;
+use luminance::shader::program::Program;
+use luminance::tess::{Mode, TessBuilder, TessSliceIndex};
+use luminance_derive::{Semantics, Vertex};
+use luminance_glfw::{GlfwSurface, Surface, WindowDim, WindowEvent, WindowOpt};
+
+#[derive(Vertex)]
+#[vertex(sem = "VertexSemantics")]
+pub struct Vertex {
+    position: VertexPosition,
+    #[vertex(normalized = "true")]
+    color: VertexRGB,
+}
+
+#[derive(Copy, Clone, Debug, Semantics)]
+pub enum VertexSemantics {
+    #[sem(name = "position", repr = "[f32; 2]", wrapper = "VertexPosition")]
+    Position,
+    #[sem(name = "color", repr = "[u8; 3]", wrapper = "VertexRGB")]
+    Color,
+}
+
+fn gen_vertices() -> Vec<Vertex> {
+    let mut vertices: Vec<Vertex> = Vec::new();
+
+    vertices.push(Vertex {
+        position: VertexPosition::new([-0.5, -0.5]),
+        color: VertexRGB::new([255, 0, 0]),
+    });
+    vertices.push(Vertex {
+        position: VertexPosition::new([0.5, -0.5]),
+        color: VertexRGB::new([0, 255, 0]),
+    });
+    vertices.push(Vertex {
+        position: VertexPosition::new([0.0, 0.5]),
+        color: VertexRGB::new([0, 0, 255]),
+    });
+
+    vertices
+}
+
+fn alter_vertices(vertices: &mut Vec<Vertex>) {
+    for vertex in vertices {
+        vertex.position[0] += 0.01;
+        if vertex.color[1] < 255 {
+            vertex.color[1] += 1;
+        }
+    }
+}
+
+fn main() {
+    let mut surface =
+        GlfwSurface::new(WindowDim::Windowed(500, 500), "art", WindowOpt::default()).unwrap();
+    //GlfwSurface::new(WindowDim::Fullscreen, "art", WindowOpt::default()).unwrap();
+
+    let program: Program<VertexSemantics, (), ()> =
+        Program::from_strings(None, include_str!("vs.glsl"), None, include_str!("fs.glsl"))
+            .unwrap()
+            .ignore_warnings();
+
+    let mut vertices = gen_vertices();
+
+    let mut run = true;
+
+    while run {
+        for event in surface.poll_events() {
+            if let WindowEvent::Close = event {
+                run = false;
+            }
+        }
+
+        let back_buffer = surface.back_buffer().unwrap();
+
+        alter_vertices(&mut vertices);
+
+        let triangle = TessBuilder::new(&mut surface)
+            .add_vertices(&vertices)
+            .set_mode(Mode::Triangle)
+            .build()
+            .unwrap();
+
+        surface.pipeline_builder().pipeline(
+            &back_buffer,
+            &PipelineState::default(),
+            |_pipeline, mut shd_gate| {
+                shd_gate.shade(&program, |_, mut rdr_gate| {
+                    rdr_gate.render(&RenderState::default(), |mut tess_gate| {
+                        tess_gate.render(triangle.slice(..));
+                    });
+                });
+            },
+        );
+
+        surface.swap_buffers();
+    }
+}
diff --git a/src/vs.glsl b/src/vs.glsl
new file mode 100644
index 0000000..97f4a8f
--- /dev/null
+++ b/src/vs.glsl
@@ -0,0 +1,9 @@
+in vec2 position;
+in vec3 color;
+
+out vec3 v_color;
+
+void main() {
+  v_color = color;
+  gl_Position = vec4(position, 0., 1.);
+}