Finally first visible surface.

Change-Id: Ib168cbb8cd636539aee62098b98e6e24a112dab6
Reviewed-by: Mika Salmela <mika.salmela@digia.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/src/datavis3d/engine/shaders/surfaceGrid.vert b/src/datavis3d/engine/shaders/surfaceGrid.vert
new file mode 100644
index 00000000..73262c4a
--- /dev/null
+++ b/src/datavis3d/engine/shaders/surfaceGrid.vert
@@ -0,0 +1,28 @@
+#version 150
+
+attribute highp vec3 vertexPosition_mdl;
+attribute highp vec2 vertexUV;
+attribute highp vec3 vertexNormal_mdl;
+
+uniform highp mat4 MVP;
+uniform highp mat4 V;
+uniform highp mat4 M;
+uniform highp mat4 itM;
+uniform highp vec3 lightPosition_wrld;
+
+varying highp vec3 position_wrld;
+varying highp vec3 normal_cmr;
+varying highp vec3 eyeDirection_cmr;
+varying highp vec3 lightDirection_cmr;
+varying highp vec2 coords_mdl;
+
+void main() {
+    gl_Position = MVP * vec4(vertexPosition_mdl, 1.0);
+    coords_mdl = vertexPosition_mdl.xy;
+    position_wrld = (M * vec4(vertexPosition_mdl, 1.0)).xyz;
+    vec3 vertexPosition_cmr = (V * M * vec4(vertexPosition_mdl, 1.0)).xyz;
+    eyeDirection_cmr = vec3(0.0, 0.0, 0.0) - vertexPosition_cmr;
+    vec3 lightPosition_cmr = (V * vec4(lightPosition_wrld, 1.0)).xyz;
+    lightDirection_cmr = lightPosition_cmr + eyeDirection_cmr;
+    normal_cmr = (V * itM * vec4(vertexNormal_mdl, 0.0)).xyz;
+}