display slice and wireframe simultaneously

vis/shaders/curve-ortho.gm.glsl

@@ -0,0 +1,38 @@
+#version 430
+
+#define SUBS 20
+
+layout(lines) in;
+layout(line_strip, max_vertices = SUBS) out;
+
+layout(std430, binding=1) buffer Positions {
+    vec4 verts[];
+};
+
+layout(std140, binding=1) uniform Matrices {
+    mat4 proj;
+    mat4 view;
+};
+
+out gl_PerVertex {
+    vec4 gl_Position;
+    float gl_PointSize;
+};
+
+in vec4 gpos[];
+
+out vec4 vpos;
+
+vec4 stereo(vec4 v) {
+    return vec4(v.xyz, 1);
+}
+
+void main() {
+    for (int i = 0; i < SUBS; i++) {
+        vpos = mix(gpos[0], gpos[1], i * 1.0f / (SUBS - 1));
+        vpos = normalize(vpos);
+        gl_Position = proj * stereo(vpos);
+        EmitVertex();
+    }
+    EndPrimitive();
+}

vis/shaders/curve-stereo.gm.glsl

@@ -5,9 +5,22 @@
 layout(lines) in;
 layout(line_strip, max_vertices = SUBS) out;
 
-layout(location=0) uniform mat4 proj;
+layout(std430, binding=1) buffer Positions {
+    vec4 verts[];
+};
+
+layout(std140, binding=1) uniform Matrices {
+    mat4 proj;
+    mat4 view;
+};
+
+out gl_PerVertex {
+    vec4 gl_Position;
+    float gl_PointSize;
+};
 
 in vec4 gpos[];
+
 out vec4 vpos;
 
 vec4 stereo(vec4 v) {

vis/shaders/direct-ortho.vs.glsl

@@ -0,0 +1,24 @@
+#version 430
+
+layout(std430, binding=1) buffer Positions {
+    vec4 verts[];
+};
+
+layout(std140, binding=1) uniform Matrices {
+    mat4 proj;
+    mat4 view;
+};
+
+out gl_PerVertex {
+    vec4 gl_Position;
+    float gl_PointSize;
+};
+
+out vec4 vpos;
+
+void main() {
+    vec4 pos = verts[gl_VertexID];
+    vpos = view * pos;
+    gl_Position = proj * vec4(vpos.xyz / (1), 1);
+    gl_PointSize = 5;
+}

vis/shaders/direct-stereo.vs.glsl

@@ -0,0 +1,24 @@
+#version 430
+
+layout(std430, binding=1) buffer Positions {
+    vec4 verts[];
+};
+
+layout(std140, binding=1) uniform Matrices {
+    mat4 proj;
+    mat4 view;
+};
+
+out gl_PerVertex {
+    vec4 gl_Position;
+    float gl_PointSize;
+};
+
+out vec4 vpos;
+
+void main() {
+    vec4 pos = verts[gl_VertexID];
+    vpos = view * pos;
+    gl_Position = proj * vec4(vpos.xyz / (1 - vpos.w), 1);
+    gl_PointSize = 5;
+}

vis/shaders/ortho.vs.glsl

@@ -1,17 +0,0 @@
-#version 430
-
-out gl_PerVertex {
-    vec4 gl_Position;
-};
-
-layout(location=0) uniform mat4 proj;
-layout(location=1) uniform mat4 view;
-
-layout(location=0) in vec4 pos;
-
-out vec4 vpos;
-
-void main() {
-    vpos = view * pos;
-    gl_Position = proj * vec4(vpos.xyz / (1), 1);
-}

vis/shaders/stereo-proper.vs.glsl

@@ -1,14 +0,0 @@
-#version 430
-
-layout(location=0) uniform mat4 proj;
-layout(location=1) uniform mat4 view;
-
-layout(location=0) in vec4 pos;
-
-out vec4 vpos;
-
-void main() {
-    vpos = view * pos;
-    gl_Position = proj * vec4(vpos.xyz / (1), 1);
-    gl_PointSize = 5;
-}

vis/shaders/stereo.vs.glsl

@@ -1,15 +0,0 @@
-#version 430
-
-layout(location=0) uniform mat4 proj;
-layout(location=1) uniform mat4 view;
-
-layout(location=0) in vec4 pos;
-
-out vec4 vpos;
-
-void main() {
-    int i = gl_VertexID;
-    vpos = view * pos;
-     gl_Position = proj * vec4(vpos.xyz / (1 - vpos.w), 1);
-    gl_PointSize = 5 * smoothstep(-2, 2, gl_Position.z);
-}

vis/shaders/w-axis-hue.fs.glsl

@@ -1,11 +0,0 @@
-#version 430
-
-in vec4 vpos;
-
-out vec4 color;
-
-void main() {
-    float d = smoothstep(-2, 2, vpos.z);
-    vec3 off = 1.04 * vec3(0, 2, 4) + 2 * vec3(vpos.w);
-    color = vec4(d * cos(off), 1);
-}