From 27373919f4369c0c511f9f0ac66854b7f76e101d Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sat, 1 Dec 2012 03:02:16 +0200
Subject: Implement a global shader parameter passing system and useful shaders

---
 .../test_shader_2/.opengl_fragment.glsl.swo        | Bin 0 -> 12288 bytes
 client/shaders/test_shader_2/base.txt              |   1 +
 client/shaders/test_shader_2/opengl_fragment.glsl  |  23 +++++++++++++++++++++
 client/shaders/test_shader_2/opengl_vertex.glsl    |  20 ++++++++++++++++++
 4 files changed, 44 insertions(+)
 create mode 100644 client/shaders/test_shader_2/.opengl_fragment.glsl.swo
 create mode 100644 client/shaders/test_shader_2/base.txt
 create mode 100644 client/shaders/test_shader_2/opengl_fragment.glsl
 create mode 100644 client/shaders/test_shader_2/opengl_vertex.glsl

(limited to 'client/shaders/test_shader_2')

diff --git a/client/shaders/test_shader_2/.opengl_fragment.glsl.swo b/client/shaders/test_shader_2/.opengl_fragment.glsl.swo
new file mode 100644
index 000000000..e1cac6222
Binary files /dev/null and b/client/shaders/test_shader_2/.opengl_fragment.glsl.swo differ
diff --git a/client/shaders/test_shader_2/base.txt b/client/shaders/test_shader_2/base.txt
new file mode 100644
index 000000000..1c2647118
--- /dev/null
+++ b/client/shaders/test_shader_2/base.txt
@@ -0,0 +1 @@
+trans_alphach
diff --git a/client/shaders/test_shader_2/opengl_fragment.glsl b/client/shaders/test_shader_2/opengl_fragment.glsl
new file mode 100644
index 000000000..38bc94311
--- /dev/null
+++ b/client/shaders/test_shader_2/opengl_fragment.glsl
@@ -0,0 +1,23 @@
+
+uniform sampler2D myTexture;
+uniform float fogDistance;
+
+varying vec3 vPosition;
+
+void main (void)
+{
+    vec4 col = texture2D(myTexture, vec2(gl_TexCoord[0]));
+    col *= gl_Color;
+	float a = gl_Color.a;
+	col = col * col; // SRGB -> Linear
+	col *= 1.8;
+	col.r = 1.0 - exp(1.0 - col.r) / exp(1.0);
+	col.g = 1.0 - exp(1.0 - col.g) / exp(1.0);
+	col.b = 1.0 - exp(1.0 - col.b) / exp(1.0);
+	col = sqrt(col); // Linear -> SRGB
+	if(fogDistance != 0.0){
+		float d = max(0.0, min(vPosition.z / fogDistance * 1.5 - 0.6, 1.0));
+		a = mix(a, 0.0, d);
+	}
+	gl_FragColor = vec4(col.r, col.g, col.b, a);
+}
diff --git a/client/shaders/test_shader_2/opengl_vertex.glsl b/client/shaders/test_shader_2/opengl_vertex.glsl
new file mode 100644
index 000000000..6286fc0d7
--- /dev/null
+++ b/client/shaders/test_shader_2/opengl_vertex.glsl
@@ -0,0 +1,20 @@
+
+uniform mat4 mWorldViewProj;
+uniform mat4 mInvWorld;
+uniform mat4 mTransWorld;
+
+varying vec3 vPosition;
+
+void main(void)
+{
+	vec4 pos = gl_Vertex;
+	pos.y -= 2.0;
+	gl_Position = mWorldViewProj * pos;
+
+	vPosition = (mWorldViewProj * gl_Vertex).xyz;
+
+	gl_FrontColor = gl_BackColor = gl_Color;
+	//gl_FrontColor = gl_BackColor = vec4(1.0, 1.0, 1.0, 1.0);
+
+	gl_TexCoord[0] = gl_MultiTexCoord0;
+}
-- 
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