From 54b96b2bac0b4f0b31e5ddac79ca7e9f67c6985e Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Fri, 14 May 2021 21:25:45 -0400
Subject: graphics: pbr: Add placeholder inputs/outputs to shaders.

---
 data/shaders/pbr-frag.glsl |  2 ++
 data/shaders/pbr-vert.glsl | 17 ++++++++++++++---
 2 files changed, 16 insertions(+), 3 deletions(-)

(limited to 'data')

diff --git a/data/shaders/pbr-frag.glsl b/data/shaders/pbr-frag.glsl
index e2841fe..5998474 100644
--- a/data/shaders/pbr-frag.glsl
+++ b/data/shaders/pbr-frag.glsl
@@ -32,12 +32,14 @@ struct Light {
 #ifdef GLSL120
 attribute vec3 fragWorldPos;
 attribute vec3 fragNormal;
+attribute vec3 fragTangent;
 attribute vec2 fragTexcoord0;
 attribute vec2 fragTexcoord1;
 attribute vec4 fragColor0;
 #else
 in vec3 fragWorldPos;
 in vec3 fragNormal;
+in vec3 fragTangent;
 in vec2 fragTexcoord0;
 in vec2 fragTexcoord1;
 in vec4 fragColor0;
diff --git a/data/shaders/pbr-vert.glsl b/data/shaders/pbr-vert.glsl
index bf43e81..adbcdc5 100644
--- a/data/shaders/pbr-vert.glsl
+++ b/data/shaders/pbr-vert.glsl
@@ -3,31 +3,41 @@
 #ifdef GLSL330
 layout (location = 0) in vec3 position;
 layout (location = 1) in vec3 normal;
-layout (location = 2) in vec2 texcoord0;
-layout (location = 3) in vec2 texcoord1;
-layout (location = 4) in vec4 color0;
+layout (location = 2) in vec3 tangent;
+layout (location = 3) in vec2 texcoord0;
+layout (location = 4) in vec2 texcoord1;
+layout (location = 5) in vec4 color0;
+layout (location = 6) in vec4 joint;
+layout (location = 7) in vec4 weight;
 #elif defined(GLSL130)
 in vec3 position;
 in vec3 normal;
+in vec3 tangent;
 in vec2 texcoord0;
 in vec2 texcoord1;
 in vec4 color0;
+in vec4 joint;
 #elif defined(GLSL120)
 attribute vec3 position;
+attribute vec3 normal;
+attribute vec3 tangent;
 attribute vec2 texcoord0;
 attribute vec2 texcoord1;
 attribute vec4 color0;
+attribute vec4 weight;
 #endif
 
 #ifdef GLSL120
 varying vec3 fragWorldPos;
 varying vec3 fragNormal;
+varying vec3 fragTangent;
 varying vec2 fragTexcoord0;
 varying vec2 fragTexcoord1;
 varying vec4 fragColor0;
 #else
 out vec3 fragWorldPos;
 out vec3 fragNormal;
+out vec3 fragTangent;
 out vec2 fragTexcoord0;
 out vec2 fragTexcoord1;
 out vec4 fragColor0;
@@ -40,6 +50,7 @@ uniform mat4 projection;
 void main(void) {
   fragWorldPos = vec3(model * vec4(position, 1.0));
   fragNormal = mat3(model) * normal;
+  fragTangent = mat3(model) * tangent;
   fragTexcoord0 = texcoord0;
   fragTexcoord1 = texcoord1;
   fragColor0 = color0;
-- 
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