create stereoscopic-3d subdir and move some things to it

stereoscopic-3d/shaders/shutter-3d.glsl

@@ -0,0 +1,143 @@
+// Shutter 3D to side-by-side
+// by hunterk
+// license: public domain
+
+#pragma parameter ZOOM "Zoom" 1.0 0.0 2.0 0.01
+#pragma parameter vert_pos "Vertical Modifier" 0.0 -2.0 2.0 0.01
+#pragma parameter horz_pos "Horizontal Modifier" 0.0 -2.0 2.0 0.01
+#pragma parameter separation "Eye Separation" 0.0 -2.0 2.0 0.01
+#pragma parameter flicker "Hold Last Frame (reduce flicker)" 0.0 0.0 1.0 1.0
+#pragma parameter height_mod "Image Height" 1.0 0.0 2.0 0.01
+
+#if defined(VERTEX)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING out
+#define COMPAT_ATTRIBUTE in
+#define COMPAT_TEXTURE texture
+#else
+#define COMPAT_VARYING varying 
+#define COMPAT_ATTRIBUTE attribute 
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+COMPAT_ATTRIBUTE vec4 VertexCoord;
+COMPAT_ATTRIBUTE vec4 COLOR;
+COMPAT_ATTRIBUTE vec4 TexCoord;
+COMPAT_VARYING vec4 COL0;
+COMPAT_VARYING vec2 left_coord;
+COMPAT_VARYING vec2 right_coord;
+COMPAT_VARYING float timer;
+
+vec4 _oPosition1; 
+uniform mat4 MVPMatrix;
+uniform COMPAT_PRECISION int FrameDirection;
+uniform COMPAT_PRECISION int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+// compatibility #defines
+#define vTexCoord TEX0.xy
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define OutSize vec4(OutputSize, 1.0 / OutputSize)
+
+#ifdef PARAMETER_UNIFORM
+uniform COMPAT_PRECISION float ZOOM, vert_pos, separation, flicker, height_mod, horz_pos;
+#else
+#define ZOOM 1.0
+#define vert_pos 0.0
+#define horz_pos 0.0
+#define separation 0.0
+#define flicker 0.0
+#define height_mod 1.0
+#endif
+
+void main()
+{
+    gl_Position = MVPMatrix * VertexCoord;
+	vec2 temp_coord = TexCoord.xy - 0.5 * InputSize / TextureSize;
+	temp_coord *= ZOOM;
+	temp_coord *= vec2(2.,1. / height_mod);
+	temp_coord += vec2(horz_pos, vert_pos);
+	temp_coord += 0.5 * InputSize / TextureSize;
+    left_coord = temp_coord.xy - vec2(0.5 + separation,0.) * InputSize / TextureSize;
+	right_coord = temp_coord.xy + vec2(0.5 + separation,0.) * InputSize / TextureSize;
+	timer = mod(float(FrameCount), 2.);
+}
+
+#elif defined(FRAGMENT)
+
+#ifdef GL_ES
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING in
+#define COMPAT_TEXTURE texture
+out COMPAT_PRECISION vec4 FragColor;
+#else
+#define COMPAT_VARYING varying
+#define FragColor gl_FragColor
+#define COMPAT_TEXTURE texture2D
+#endif
+
+uniform COMPAT_PRECISION int FrameDirection;
+uniform COMPAT_PRECISION int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+uniform sampler2D PrevTexture;
+COMPAT_VARYING vec2 left_coord;
+COMPAT_VARYING vec2 right_coord;
+COMPAT_VARYING float timer;
+
+// compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define OutSize vec4(OutputSize, 1.0 / OutputSize)
+
+#ifdef PARAMETER_UNIFORM
+uniform COMPAT_PRECISION float ZOOM, vert_pos, separation, flicker, height_mod, horz_pos;
+#else
+#define ZOOM 1.0
+#define vert_pos 0.0
+#define horz_pos 0.0
+#define separation 0.0
+#define flicker 0.0
+#define height_mod 1.0
+#endif
+
+void main()
+{
+	vec4 left_screen = COMPAT_TEXTURE(Source, left_coord);
+	vec4 left_hold = COMPAT_TEXTURE(PrevTexture, left_coord);
+	vec4 right_screen = COMPAT_TEXTURE(Source, right_coord);
+	vec4 right_hold = COMPAT_TEXTURE(PrevTexture, right_coord);
+	left_screen = left_screen * timer + (1. - timer) * left_hold * flicker;
+	vec2 left_fragcoord = left_coord * InputSize / TextureSize;
+	bool left_check = left_fragcoord.x > 0.0001 && left_fragcoord.y > 0.0001 && left_fragcoord.x < 0.9999 && left_fragcoord.y < 0.9999;
+	left_screen *= (left_check) ? 1.0 : 0.0;
+	right_screen = right_screen * (1. - timer) + right_hold * timer * flicker;
+	vec2 right_fragcoord = right_coord * InputSize / TextureSize;
+	bool right_check = right_fragcoord.x > 0.0001 && right_fragcoord.y > 0.0001 && right_fragcoord.x < 0.9999 && right_fragcoord.y < 0.9999;
+	right_screen *= (right_check) ? 1.0 : 0.0;
+    FragColor = left_screen + right_screen;
+} 
+#endif

stereoscopic-3d/shutter-to-side-by-side.glslp

@@ -0,0 +1,4 @@
+shaders = 1
+
+shader0 = shaders/shutter-3d.glsl
+wrap_mode0 = edge