From 37822c3ad29f0d40115ddbf2bd9118d922218ceb Mon Sep 17 00:00:00 2001
From: jgk <justin.g.kruger@gmail.com>
Date: Fri, 5 Mar 2021 20:24:49 +0100
Subject: [PATCH] Track new shaders

---
 shader/character.frag      | 15 +++++++++++++++
 shader/character.geom      | 36 ++++++++++++++++++++++++++++++++++++
 shader/character.vert      | 21 +++++++++++++++++++++
 shader/fullFadeCircle.frag | 12 ++++++++++++
 shader/fullFadeCircle.geom | 30 ++++++++++++++++++++++++++++++
 shader/fullFadeCircle.vert | 12 ++++++++++++
 6 files changed, 126 insertions(+)
 create mode 100644 shader/character.frag
 create mode 100644 shader/character.geom
 create mode 100644 shader/character.vert
 create mode 100644 shader/fullFadeCircle.frag
 create mode 100644 shader/fullFadeCircle.geom
 create mode 100644 shader/fullFadeCircle.vert

diff --git a/shader/character.frag b/shader/character.frag
new file mode 100644
index 000000000..a1cefb0e9
--- /dev/null
+++ b/shader/character.frag
@@ -0,0 +1,15 @@
+#version 430 core
+out vec4 FragColor;
+  
+in vec4 gColor;
+in vec2 gTex;
+
+uniform sampler2D aTexture;
+
+void main()
+{
+    FragColor = texture(aTexture, gTex) * gColor;
+//    FragColor = texture(aTexture, vTexCoord);
+//    FragColor = gColor;
+//    FragColor = vec4 (1,1,1,1);
+}
diff --git a/shader/character.geom b/shader/character.geom
new file mode 100644
index 000000000..a3e1851e4
--- /dev/null
+++ b/shader/character.geom
@@ -0,0 +1,36 @@
+#version 430 core
+layout (points) in;
+layout (triangle_strip, max_vertices = 4) out;
+in vec4 vColor [];
+in vec2 vTexCoord [];
+out vec4 gColor;
+out vec2 gTex;
+void main()
+{
+  vec3 cenPos = gl_in[0].gl_Position.xyz;
+  float size = vTexCoord[0].y;
+  //float size = 0.05;
+  gColor = vColor[0];
+  float texPos = vTexCoord[0].x;
+
+  gl_Position = vec4 (cenPos.x - size*0.5, cenPos.y - size, cenPos.z , 1);
+  //gl_Position = vec4 (0, 0 , 5 , 1);
+  gTex = vec2 (texPos*0.0078125, 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - size*0.5, cenPos.y + size, cenPos.z , 1);
+  //gl_Position = vec4 (0, 0.5 , 5 , 1);
+  gTex = vec2 (texPos*0.0078125, 0);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x + size*0.5, cenPos.y - size, cenPos.z , 1);
+  //gl_Position = vec4 (0.5, 0.5 , -5 , 1);
+  gTex = vec2 ((texPos+1)*0.0078125, 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x + size*0.5, cenPos.y + size, cenPos.z , 1);
+  gTex = vec2 ((texPos+1)*0.0078125, 0);
+  //gl_Position = vec4 (0.5, 0 , -5 , 1);
+  EmitVertex();
+
+
+  EndPrimitive();
+
+}
diff --git a/shader/character.vert b/shader/character.vert
new file mode 100644
index 000000000..c9d3000e9
--- /dev/null
+++ b/shader/character.vert
@@ -0,0 +1,21 @@
+#version 430 core
+layout (location = 0) in vec3 aPos;
+layout (location = 1) in vec4 aColor;
+layout (location = 2) in vec2 aTexCoord;
+
+uniform vec2 winSize;
+uniform float zoom;
+uniform vec2 translation;
+uniform float rotation;
+uniform mat4 worldMat;
+
+out vec4 vColor;
+out vec2 vTexCoord;
+
+void main()
+{
+    gl_Position = vec4(aPos, 1.0);
+    vColor = aColor;
+    vTexCoord = aTexCoord;
+}
+
diff --git a/shader/fullFadeCircle.frag b/shader/fullFadeCircle.frag
new file mode 100644
index 000000000..45ca0c969
--- /dev/null
+++ b/shader/fullFadeCircle.frag
@@ -0,0 +1,12 @@
+#version 430 core
+in vec4 gColor;
+in vec2 cenPosTrans;
+in float gRad;
+out vec4 fColor;
+
+void main()
+{
+  vec2 pos = gl_FragCoord.xy;
+  float dist = max(0 , 1 - 2 * distance(pos,cenPosTrans) / (gRad));
+  fColor = vec4( gColor.xyz , pow(gColor.z*dist,2) );
+}
diff --git a/shader/fullFadeCircle.geom b/shader/fullFadeCircle.geom
new file mode 100644
index 000000000..4d696433c
--- /dev/null
+++ b/shader/fullFadeCircle.geom
@@ -0,0 +1,30 @@
+#version 430 core
+layout (points) in;
+layout (triangle_strip, max_vertices = 4) out;
+in vec4 vColor [];
+in float vRad [];
+uniform vec2 winSize;
+out vec4 gColor;
+out float gRad;
+out vec2 cenPosTrans;
+void main()
+{
+  vec3 cenPos = gl_in[0].gl_Position.xyz;
+  vec2 cenPosa = cenPos.xy + vec2 (1,1);
+  cenPosTrans = vec2 (cenPosa * winSize * 0.5);
+  gColor = vColor[0];
+  gRad = vRad[0];
+
+  gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y + gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y + gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y - gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y - gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+
+
+  EndPrimitive();
+
+}
diff --git a/shader/fullFadeCircle.vert b/shader/fullFadeCircle.vert
new file mode 100644
index 000000000..2046f8894
--- /dev/null
+++ b/shader/fullFadeCircle.vert
@@ -0,0 +1,12 @@
+#version 430 core
+layout (location = 0) in vec3 position;
+layout (location = 1) in vec4 color;
+layout (location = 2) in float rad;
+out vec4 vColor;
+out float vRad;
+void main()
+{
+  gl_Position = vec4(position,1);
+  vColor = color;
+  vRad = rad;
+}