From 28841961ba91b943b7478704181604fa3e24e81e Mon Sep 17 00:00:00 2001
From: Vitaliy <silverunicorn2011@yandex.ru>
Date: Tue, 31 Oct 2017 21:27:10 +0300
Subject: Rewrite rendering engine (#6253)

* Clean draw_*() arguments

* Split rendering core

* Add anaglyph 3D

* Interlaced 3D

* Drop obsolete methods
---
 .../3d_interlaced_merge/opengl_fragment.glsl        | 21 +++++++++++++++++++++
 .../shaders/3d_interlaced_merge/opengl_vertex.glsl  |  6 ++++++
 2 files changed, 27 insertions(+)
 create mode 100644 client/shaders/3d_interlaced_merge/opengl_fragment.glsl
 create mode 100644 client/shaders/3d_interlaced_merge/opengl_vertex.glsl

(limited to 'client')

diff --git a/client/shaders/3d_interlaced_merge/opengl_fragment.glsl b/client/shaders/3d_interlaced_merge/opengl_fragment.glsl
new file mode 100644
index 000000000..25945ad7f
--- /dev/null
+++ b/client/shaders/3d_interlaced_merge/opengl_fragment.glsl
@@ -0,0 +1,21 @@
+uniform sampler2D baseTexture;
+uniform sampler2D normalTexture;
+uniform sampler2D textureFlags;
+
+#define leftImage baseTexture
+#define rightImage normalTexture
+#define maskImage textureFlags
+
+void main(void)
+{
+	vec2 uv = gl_TexCoord[0].st;
+	vec4 left = texture2D(leftImage, uv).rgba;
+	vec4 right = texture2D(rightImage, uv).rgba;
+	vec4 mask = texture2D(maskImage, uv).rgba;
+	vec4 color;
+	if (mask.r > 0.5)
+		color = right;
+	else
+		color = left;
+	gl_FragColor = color;
+}
diff --git a/client/shaders/3d_interlaced_merge/opengl_vertex.glsl b/client/shaders/3d_interlaced_merge/opengl_vertex.glsl
new file mode 100644
index 000000000..4e0b2b125
--- /dev/null
+++ b/client/shaders/3d_interlaced_merge/opengl_vertex.glsl
@@ -0,0 +1,6 @@
+void main(void)
+{
+	gl_TexCoord[0] = gl_MultiTexCoord0;
+	gl_Position = gl_Vertex;
+	gl_FrontColor = gl_BackColor = gl_Color;
+}
-- 
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