From f3a34665978729ef65010ac2a4a9408e27d5bf3e Mon Sep 17 00:00:00 2001
From: ccolin
Date: Mon, 28 Dec 2020 17:36:45 +0100
Subject: skybox

---
 shaders/main.frag   | 20 ++++++++++++++++++++
 shaders/main.vert   | 20 ++++++++++++++++++++
 shaders/skybox.frag | 23 +++++++++++++++++++++++
 shaders/skybox.vert | 28 ++++++++++++++++++++++++++++
 4 files changed, 91 insertions(+)
 create mode 100644 shaders/main.frag
 create mode 100644 shaders/main.vert
 create mode 100644 shaders/skybox.frag
 create mode 100644 shaders/skybox.vert

(limited to 'shaders')

diff --git a/shaders/main.frag b/shaders/main.frag
new file mode 100644
index 0000000..8eb47ec
--- /dev/null
+++ b/shaders/main.frag
@@ -0,0 +1,20 @@
+#version 330 core
+
+in vec3 norm;
+in vec2 uv;
+in vec3 frag_pos;
+
+out vec4 final_col;
+
+uniform sampler2D tex;
+
+void main() {
+	vec3 light_col = vec3(1, .964, .783);
+	vec3 ambient = light_col * .2;
+
+	vec3 light_dir = normalize(vec3(5, 10, -8));
+	float diff = max(dot(normalize(norm), light_dir), 0.0);
+	vec3 diffuse = diff * light_col;
+
+	final_col = texture(tex, uv) * vec4(ambient + diffuse, 1);
+}
diff --git a/shaders/main.vert b/shaders/main.vert
new file mode 100644
index 0000000..33e6849
--- /dev/null
+++ b/shaders/main.vert
@@ -0,0 +1,20 @@
+#version 330 core
+
+layout(location = 0) in vec3 in_pos;
+layout(location = 1) in vec3 in_norm;
+layout(location = 2) in vec2 in_uv;
+
+out vec3 norm;
+out vec2 uv;
+out vec3 frag_pos;
+
+uniform mat4 proj;
+uniform mat4 view;
+uniform mat4 model;
+
+void main() {
+	gl_Position = proj * view * model * vec4(in_pos, 1.0);
+	norm = in_norm;
+	uv = in_uv;
+	frag_pos = vec3(model * vec4(in_pos, 1.0));
+}
diff --git a/shaders/skybox.frag b/shaders/skybox.frag
new file mode 100644
index 0000000..f5f8edb
--- /dev/null
+++ b/shaders/skybox.frag
@@ -0,0 +1,23 @@
+#version 330 core
+
+// in vec3 tex_coord;
+
+// out vec4 final_col;
+
+// uniform samplerCube skybox;
+
+// void main() {
+// 	// final_col = texture(skybox, tex_coord);
+// 	final_col = vec4(0, 0, 0, 1);
+// }
+
+in vec3 tex_coords;
+
+out vec4 final_col;
+
+uniform samplerCube tex;
+
+void main() {
+	final_col = texture(tex, tex_coords);
+	// final_col = vec4(1, 0, 1, 1);
+}
diff --git a/shaders/skybox.vert b/shaders/skybox.vert
new file mode 100644
index 0000000..ac4ac5e
--- /dev/null
+++ b/shaders/skybox.vert
@@ -0,0 +1,28 @@
+#version 330 core
+
+// layout(location = 0) in vec3 in_pos;
+
+// out vec3 tex_coords;
+
+// uniform mat4 proj;
+// uniform mat4 view;
+
+// void main() {
+// 	// vec4 pos = proj * view * vec4(in_pos, 1.0);
+// 	// gl_Position = pos.xyww;
+// 	gl_Position = proj * vec4(in_pos, 1.0);
+// 	tex_coords = in_pos;
+// }
+
+layout(location = 0) in vec3 in_pos;
+
+out vec3 tex_coords;
+
+uniform mat4 proj;
+uniform mat4 view;
+
+void main() {
+	tex_coords = in_pos;
+	vec4 pos = proj * mat4(mat3(view)) * vec4(in_pos, 1.0);
+	gl_Position = pos.xyww;
+}
-- 
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