From 1c0cc775732201f4c4d3ee0d6772be786b3b4aa1 Mon Sep 17 00:00:00 2001
From: Uneven Prankster <unevenprankster@protonmail.com>
Date: Sun, 15 Oct 2023 21:28:29 -0300
Subject: A lot has certainly happened!

---
 .../resources/shaders/glsl100/point_particle.fs    | 16 +++++++++++++++
 .../resources/shaders/glsl100/point_particle.vs    | 24 ++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 raylib/examples/others/resources/shaders/glsl100/point_particle.fs
 create mode 100644 raylib/examples/others/resources/shaders/glsl100/point_particle.vs

(limited to 'raylib/examples/others/resources/shaders/glsl100')

diff --git a/raylib/examples/others/resources/shaders/glsl100/point_particle.fs b/raylib/examples/others/resources/shaders/glsl100/point_particle.fs
new file mode 100644
index 0000000..cf0fd72
--- /dev/null
+++ b/raylib/examples/others/resources/shaders/glsl100/point_particle.fs
@@ -0,0 +1,16 @@
+#version 100
+
+precision mediump float;
+
+// Input uniform values
+uniform vec4 color;
+
+// NOTE: Add here your custom variables
+
+void main()
+{
+    // Each point is drawn as a screen space square of gl_PointSize size. gl_PointCoord contains where we are inside of
+    // it. (0, 0) is the top left, (1, 1) the bottom right corner.
+    // Draw each point as a colored circle with alpha 1.0 in the center and 0.0 at the outer edges.
+    gl_FragColor = vec4(color.rgb, color.a * (1.0 - length(gl_PointCoord.xy - vec2(0.5))*2.0));
+}
\ No newline at end of file
diff --git a/raylib/examples/others/resources/shaders/glsl100/point_particle.vs b/raylib/examples/others/resources/shaders/glsl100/point_particle.vs
new file mode 100644
index 0000000..f3b7007
--- /dev/null
+++ b/raylib/examples/others/resources/shaders/glsl100/point_particle.vs
@@ -0,0 +1,24 @@
+#version 100
+
+// Input vertex attributes
+attribute vec3 vertexPosition;
+
+// Input uniform values
+uniform mat4 mvp;
+uniform float currentTime;
+
+// NOTE: Add here your custom variables
+
+void main()
+{
+    // Unpack data from vertexPosition
+    vec2  pos    = vertexPosition.xy;
+    float period = vertexPosition.z;
+
+    // Calculate final vertex position (jiggle it around a bit horizontally)
+    pos += vec2(100.0, 0.0) * sin(period * currentTime);
+    gl_Position = mvp * vec4(pos.x, pos.y, 0.0, 1.0);
+
+    // Calculate the screen space size of this particle (also vary it over time)
+    gl_PointSize = 10.0 - 5.0 * abs(sin(period * currentTime));
+}
\ No newline at end of file
-- 
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