X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=shaders%2Fshaded.vert;fp=shaders%2Fshaded.vert;h=c7c7fa168cd86dd6d5c75005585cd1c77cf6e2cc;hb=147dc8ea810d9be0f965b1b80a208956f944d7fc;hp=0000000000000000000000000000000000000000;hpb=be535251d3c2b9b8634a8f3e56581a2d05f248d3;p=mandelwow.git

diff --git a/shaders/shaded.vert b/shaders/shaded.vert
new file mode 100644
index 0000000..c7c7fa1
--- /dev/null
+++ b/shaders/shaded.vert
@@ -0,0 +1,24 @@
+#version 300 es
+precision lowp float;
+
+in vec3 position;
+in vec3 normal;
+flat out vec4 color;  // Shaded color
+
+uniform mat4 model;
+uniform mat4 perspview;
+uniform vec3 col;
+
+void main() {
+    mat4 m = perspview * model;
+    vec3 dark = col * 0.1;
+    vec3 u_light = vec3( 0.5, -0.7, -0.6);
+    vec3 v_normal = transpose(inverse(mat3(model))) * normal;
+
+    float distance = model[3][2];
+    float attenuation = 1. / (1. + distance * distance * 0.05);
+    float brightness = max(dot(normalize(v_normal), normalize(u_light)) * attenuation, 0.0);
+    color = vec4(mix(dark, col, brightness), 1.0);
+
+    gl_Position = m * vec4(position, 1.0);
+}