From b4fc2b48d515708a92f02d9c75ce77d18b0f7d4f Mon Sep 17 00:00:00 2001
From: nothke <nothke@gmail.com>
Date: Tue, 11 Jun 2024 15:03:05 +0200
Subject: [PATCH] Two triangles

---
 src/main.zig | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/src/main.zig b/src/main.zig
index 5ccdd5c..28b8fb3 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -9,6 +9,7 @@ var pass_action: sg.PassAction = .{};
 
 const state = struct {
     var bind: sg.Bindings = .{};
+    var bind2: sg.Bindings = .{};
     var pip: sg.Pipeline = .{};
 };
 
@@ -22,13 +23,23 @@ export fn init() void {
 
     std.log.info("Vertex buffers len: {}", .{state.bind.vertex_buffers.len});
 
+    var triangleVerts = [_]f32{
+        // positions     colors
+        0.0,  0.5,  0.5, 1.0, 0.0, 0.0, 1.0,
+        0.5,  -0.5, 0.5, 0.0, 1.0, 0.0, 1.0,
+        -0.5, -0.5, 0.5, 0.0, 0.0, 1.0, 1.0,
+    };
+
     state.bind.vertex_buffers[0] = sg.makeBuffer(.{
-        .data = sg.asRange(&[_]f32{
-            // positions     colors
-            0.0,  0.5,  0.5, 1.0, 0.0, 0.0, 1.0,
-            0.5,  -0.5, 0.5, 0.0, 1.0, 0.0, 1.0,
-            -0.5, -0.5, 0.5, 0.0, 0.0, 1.0, 1.0,
-        }),
+        .data = sg.asRange(&triangleVerts),
+    });
+
+    for (&triangleVerts) |*vert| {
+        vert.* += 0.2;
+    }
+
+    state.bind2.vertex_buffers[0] = sg.makeBuffer(.{
+        .data = sg.asRange(&triangleVerts),
     });
 
     var pip_desc: sg.PipelineDesc = .{
@@ -58,9 +69,12 @@ export fn frame() void {
     col.r = @abs(@cos(timef()));
 
     sg.beginPass(.{ .action = pass_action, .swapchain = sokol.glue.swapchain() });
+    sg.asRange(3);
     sg.applyPipeline(state.pip);
     sg.applyBindings(state.bind);
     sg.draw(0, 3, 1);
+    sg.applyBindings(state.bind2);
+    sg.draw(0, 3, 1);
     sg.endPass();
     sg.commit();
 }