From 1bcfc9a5cce0b30c3ad9983e407c06e237b491f3 Mon Sep 17 00:00:00 2001
From: Malte Veerman <malte.veerman@gmail.com>
Date: Fri, 10 Jan 2020 14:39:29 +0100
Subject: Implemented a texture atlas for images and svgs.

---
 wgpu/src/shader/image.vert     |  26 ++++++++++++++++++++++++++
 wgpu/src/shader/image.vert.spv | Bin 2136 -> 2324 bytes
 2 files changed, 26 insertions(+)
 create mode 100644 wgpu/src/shader/image.vert

(limited to 'wgpu/src/shader')

diff --git a/wgpu/src/shader/image.vert b/wgpu/src/shader/image.vert
new file mode 100644
index 00000000..953840d2
--- /dev/null
+++ b/wgpu/src/shader/image.vert
@@ -0,0 +1,26 @@
+#version 450
+
+layout(location = 0) in vec2 v_Pos;
+layout(location = 1) in vec2 i_Pos;
+layout(location = 2) in vec2 i_Scale;
+layout(location = 3) in vec2 i_Atlas_Pos;
+layout(location = 4) in vec2 i_Atlas_Scale;
+
+layout (set = 0, binding = 0) uniform Globals {
+    mat4 u_Transform;
+};
+
+layout(location = 0) out vec2 o_Uv;
+
+void main() {
+    o_Uv = v_Pos * i_Atlas_Scale + i_Atlas_Pos;
+
+    mat4 i_Transform = mat4(
+        vec4(i_Scale.x, 0.0, 0.0, 0.0),
+        vec4(0.0, i_Scale.y, 0.0, 0.0),
+        vec4(0.0, 0.0, 1.0, 0.0),
+        vec4(i_Pos, 0.0, 1.0)
+    );
+
+    gl_Position = u_Transform * i_Transform * vec4(v_Pos, 0.0, 1.0);
+}
diff --git a/wgpu/src/shader/image.vert.spv b/wgpu/src/shader/image.vert.spv
index 9ba702bc..da76eca0 100644
Binary files a/wgpu/src/shader/image.vert.spv and b/wgpu/src/shader/image.vert.spv differ
-- 
cgit