Merge branch 'shaders'

1 files changed, 43 insertions, 0 deletions

diff --git a/wave-sim/resources/shaders/shader.frag b/wave-sim/resources/shaders/shader.frag
new file mode 100755
index 0000000..e4cf718
--- /dev/null
+++ b/wave-sim/resources/shaders/shader.frag
@@ -0,0 +1,43 @@
+#version 330 core
+out vec4 fragColor;
+
+// Additional information for lighting
+in vec4 normal_worldSpace;
+in vec4 position_worldSpace;
+in vec4 force_worldSpace;
+
+uniform int wire = 0;
+uniform float red = 1.0;
+uniform float green = 1.0;
+uniform float blue = 1.0;
+uniform float alpha = 1.0;
+uniform int displayForce = 0;
+
+void main() {
+    if (wire == 1) {
+        fragColor = vec4(0.0, 0.0, 0.0, 1);
+        return;
+    }
+    vec4 lightPos   = vec4(-2.0, 2.0, -3.0 , 1.0);
+    vec3 lightColor = vec3(1.0f, alpha, 0.0f);
+    vec4 lightDir   = normalize(-lightPos + position_worldSpace);
+    float c = clamp(dot(-normal_worldSpace, lightDir), 0, 1);
+
+    if(displayForce == 1) {
+        fragColor = force_worldSpace;
+        return;
+    }
+
+    float r = red;
+    float g = green;
+    float b = blue;
+
+//    if (displayForce == 1 && wire == 0) {
+//        r = force_worldSpace[0];
+//        g = force_worldSpace[1];
+//        b = force_worldSpace[2];
+//    }
+
+    fragColor = vec4(r * c * lightColor[0], g * c * lightColor[0], b * c * lightColor[0], 1);
+
+}